Toshiba MMY-MAP1001FT8, MMY-MAP0801FT8, MMY-MAP1201FT8 User Manual

Page 1

FILE NO. A04-003

SERVICE MANUAL

R410A

System air conditioner

The indoor unit in Super Heat Recovery Multi System is common to one in Super Modular Multi System air conditioner. Therefore refer to the service manuals for A03-009, A03-010, and A03-011 separately issued.

Heat Recovery Type

Indoor Unit

<4-way Air Discharge Cassette Type>

MMU-AP0091H, AP0121H, AP0151H, MMU-AP0181H, AP0241H, AP0271H, MMU-AP0301H, AP0361H, AP0481H MMU-AP0561H

<2-way Air Discharge Cassette Type>

MMU-AP0071WH, AP0091WH, AP0121WH, MMU-AP0151WH, AP0181WH, AP0241WH, MMU-AP0271WH, AP0301WH, AP0481WH*

* CHINA market only

<1-way Air Discharge Cassette Type>

MMU-AP0071YH, AP0091YH, AP0121YH, MMU-AP0151SH, AP0181SH, AP0241SH

MMD-AP0071BH, AP0091BH, AP0121BH, MMD-AP0151BH, AP0181BH, AP0241BH, MMD-AP0271BH, AP0301BH, AP0361BH, MMD-AP0481BH, AP0561BH

MMD-AP0181H, AP0241H, AP0271H, MMD-AP0361H, AP0481H

Outdoor Unit

MMY-MAP0801FT8 MMY-MAP1001FT8 MMY-MAP1201FT8

Flow Selector Unit (FS unit)

RBM-Y1121FE RBM-Y1801FE

MMC-AP0151H, AP0181H, AP0241H, MMC-AP0271H, AP0361H, AP0481H

MMK-AP0071H, AP0091H, AP0121H, MMK-AP0151H, AP0181H, AP0241H

MML-AP0071H, AP0091H, AP0121H, MML-AP0151H, AP0181H, AP0241H

MML-AP0071BH, AP0091BH, AP0121BH, MML-AP0151BH, AP0181BH, AP0241BH

MMF-AP0151H, AP0181H, AP0241H, MMF-AP0271H, AP0361H, AP0481H, MMF-AP0561H

PRINTED IN JAPAN, Sep, 2004 ToMo

Page 2

WARNINGS ON REFRIGERANT LEAKAGE

Check of Concentration Limit

The room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, its concentration will not exceed a set limit.

The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its concentration should rise excessively. Suffocation from leakage of R410A is almost non-existent. With the recent increase in the number of high concentration buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space, individual control, energy conservation by curtailing heat and carrying power etc. Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners. If a single unit of the multi conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its concentration does not reach the limit (and in the event of an emergency, measures can be made before injury can occur). In a room where the concentration may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device. The concentration is as given below.

Total amount of refrigerant (kg)

Min. volume of the indoor unit installed room (m³)

≤ Concentration limit (kg/m³)

The concentration limit of R410A which is used in multi air conditioners is 0.3kg/m³.

NOTE 1 :

If there are 2 or more refrigerating systems in a single refrigerating device, the amounts of refrigerant should be as charged in each independent device.

e.g., charged amount (10kg)

Room A Room B Room C Room D Room E Room F

For the amount of charge in this example:

The possible amount of leaked refrigerant gas in rooms A, B and C is 10kg. The possible amount of leaked refrigerant gas in rooms D, E and F is 15kg.

Outdoor unit

e.g., charged amount (15kg)

Indoor unit

Important

NOTE : 2

The standards for minimum room volume are as follows.

(1) No partition (shaded portion)

(2) When there is an effective opening with the

adjacent room for ventilation of leaking refrigerant gas (opening without a door, or an opening 0.15% or larger than the respective floor spaces at the top or bottom of the door).

Outdoor unit

Refrigerant piping

Indoor unit

(3) If an indoor unit is installed in each partitioned

room and the refrigerant tubing is interconnected, the smallest room of course becomes the object. But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room where the density limit is exceeded, the volume of the next smallest room becomes the object.

Refrigerant piping

Outdoor unit

Very small room

Small room

Mechanical ventilation device - Gas leak detector

Medium room

Large room

NOTE 3 : The minimum indoor floor area compared with the

amount of refrigerant is roughly as follows: (When the ceiling is 2.7m high)

Range below the

m²

density limit of 0.3 kg/m³

(countermeasures not needed)

25 20 15 10

Min. indoor floor area

10 20 30

Total amount of refrigerant

Range above the density limit of 0.3 kg/m³ (countermeasures needed)

Indoor unit

Page 3

CONTENTS

SAFETY CAUTION............................................................................................ 4

1. OUTLINE .................................................................................................... 9

2. WIRING DIAGRAM................................................................................... 13

3. PARTS RATING........................................................................................ 26

4. REFRIGERANT PIPING SYSTEMATIC DRAWING................................. 43

5. SYSTEM REFRIGERANT CYCLE DRAWING......................................... 48

6. CONTROL OUTLINE................................................................................ 55

7. APPLIED CONTROL................................................................................ 65

8. TEST OPERATION ................................................................................... 78

9. TROUBLESHOOTING............................................................................ 107

10. CONFIGURATION OF CONTROL CIRCUIT.......................................... 164

11. BACKUP OPERATIONS (EMERGENCY OPERATION) ........................ 178

12. REFRIGERANT RECOVERY

WHEN REPLACING THE COMPRESSOR ............................................ 179

13. LEAKAGE/CLOGGING OF OIL-EQUALIZATION CIRCUIT .................. 180

14. REPLACING COMPRESSOR ................................................................ 182

15. REOLACING METHOD OF PARTS ....................................................... 189

16. P.C. BOARD EXCHANGE PROCEDURES ............................................ 200

NOTE

A direct current motor is adopted for indoor fan motor in the Concealed Duct Standard Type air conditioner. Caused from its characteristics, a current limit works on the direct current motor. When replacing the highperformance filter or when opening the service panel, be sure to stop the fan. If an above action is executed during the fan operation, the protectiv e control works to stop the unit operation, and the check code “P12” may be appear. However it is not a trouble. When the desired operation has finished, be sure to reset the system to clear “P12” error code using the electric leak breaker of the indoor unit. Then push the operation ON/OFF button of the remote controller to return to the usual operation.

Page 4

SAFETY CAUTION

The important contents concerned to the safety are described on the product itself and on this Service Man ual. Please read this Service Manual after understanding the described items thoroughly in the following contents

(Indications/Illustrated marks), and keep them.

[Explanation of indications]

Indication

DANGER

WARNING

CAUTION

∗ Property damage : Enlarged damage concerned to property, furniture, and domestic animal/pet

Indicates contents assumed that an imminent danger causing a death or serious injury of the repair engineers and the third parties when an incorrect work has been executed.

Indicates possibilities assumed that a danger causing a death or serious injury of the repair engineers, the third parties, and the users due to troubles of the product after work when an incorrect work has been executed.

Indicates contents assumed that an injury or property damage ( ∗) may be caused on the repair engineers, the third parties, and the users due to troubles of the product after work when an incorrect work has been executed.

Explanation

[Explanation of illustrated marks]

Mark Explanation

Indicates prohibited items (Forbidden items to do) The sentences near an illustrated mark describe the concrete prohibited contents.

Indicates mandatory items (Compulsory items to do) The sentences near an illustrated mark describe the concrete mandatory contents.

Indicates cautions (including danger/warning) The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.

[Confirmation of warning label on the main unit]

Confirm that labels are indicated on the specified positions (Refer to the Parts disassembly diagram (Outdoor unit).)

If removing the label during parts replace, stick it as the original.

D ANGER

Turn “OFF” the breaker before removing the front panel and cabinet, otherwise an electric shock is caused by high voltage resulted in a death or injury.

During operation, a high voltage with 400V or higher of circuit (∗) at secondary circuit of the highvoltage transformer is applied.

Turn off breaker.

Execute discharge

between terminals.

Prohibition

If touching a high voltage with the naked hands or body, an electric shock is caused even if using an electric insulator.

∗ : For details, refer to the electric wiring diagram.

When removing the front panel or cabinet, execute short-circuit and discharge between highvoltage capacitor terminals.

If discharge is not executed, an electric shock is caused by high voltage resulted in a death or injury. After turning off the breaker, high voltage also keeps to apply to the high-voltage capacitor.

Do not turn on the breaker under condition that the front panel and cabinet are removed.

An electric shock is caused by high voltage resulted in a death or injury.

Page 5

Check earth wires.

Prohibition of modification.

Use specified parts.

Do not bring a child

close to the equipment.

Insulating measures

No fire

WARNING

Before troubleshooting or repair work, check the earth wire is connected to the eart h terminals of the main unit, otherwise an electric shock is caused when a leak occurs.

If the earth wire is not correctly connected, contact an electric engineer for rework.

Do not modify the products.

Do not also disassemble or modify the parts. It may cause a fire, electric shock or injury.

For spare parts, use those specified (

If unspecified parts are used, a fire or electric shock may be caused. ∗: For details, refer to the parts list.

Before troubleshooting or repair work, do not bring a third party (a child, etc.) except the repair engineers close to the equipment.

It causes an injury with tools or disassembled parts. Please inform the users so that the third party (a child, etc.) does not approach the equipment.

Connect the cut-off lead cables with crimp contact, etc, put the closed end side upward and then apply a water-cut method, otherwise a leak or production of fire is caused at the users’ side.

When repairing the refrigerating cycle, take the following measures.

1) Be attentive to fire around the cycle. When using a gas stove, etc, be sure to put out fire before work; otherwise the oil mixed with refrigerant gas may catch fire.

2) Do not use a welder in the closed room. When using it without ventilation, carbon monoxide poisoning may be caused.

3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the inflammables.

∗∗

∗).

∗∗

Refrigerant

Check the used refrigerant name and use tools and materials of the parts which match with it.

For the products which use R410A refrigerant, the refrigerant name is indicated at a position on the outdoor unit where is easy to see. To prevent miss-charging, the route of the service por t is changed from one of the former R22.

For an air conditioner which uses R410A, never use other refrigerant than R410A. For an air conditioner which uses other refrigerant (R22, etc.), never use R410A.

If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle and an injury due to breakage may be caused.

Do not charge refrigerant additionally.

If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the refrigerating cycle changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury. Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute vacuuming, and then newly recharge the specified amount of liquid refrigerant. In this time, never charge the refrigerant over the specified amount.

When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other than R410A into the specified refrigerant.

If air or others is mixed with the refrigerant, abnormal high pressure generates in the refrigerating cycle resulted in cause of injury due to breakage.

After installation work, check the refrigerant gas does not leak.

If the refrigerant gas leaks in the room, poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.

Never recover the refrigerant into the outdoor unit.

When the equipment is moved or repaired, be sure to recover the refrigerant with recovering device. The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as breakage or injury is caused.

Assembly/Cabling

After repair work, surely assemble the disassembled parts, and connect and lead the removed cables as before. Perform the work so that the cabinet or panel does not catch the inner cables.

If incorrect assembly or incorrect cable connection was done, a disaster such as a leak or fire is caused at user’s side.

Page 6

WARNING

Insulator check

Ventilation

Be attentive to

electric shock

Compulsion

After the work has finished, be sure to use an insulation tester set (500V mugger) to check the resistance is 2M metal section (Earth position).

If the resistance value is low, a disaster such as a leak or electric shock is caused at user’s side.

When the refrigerant gas leaks during work, execute ventilation.

If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant and the closed room full with gas is dangerous because a shortage of oxygen occurs. Be sure to execute ventilation.

When checking the circuit inevitably under condition of the power-ON, use rubber gloves and others not to touch to the charging section.

If touching to the charging section, an electric shock may be caused.

When the refrigerant gas leaks, find up the leaked position and repair it surely.

If the leaked position cannot be found up and the repair work is interrupted, pump-down and tighten the service valve, otherwise the refrigerant gas may leak into the room. The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though the refrigerant gas itself is innocuous.

When installing equipment which includes a large amount of charged refrigerant such as a multi air conditioner in a sub-room, it is necessary that the density does not the limit even if the refrigerant leaks.

If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is caused.

For the installation/moving/reinstallation work, follow to the Installation Manual.

If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric shock or fire is caused.

ΩΩ

Ω or more between the charge section and the non-charge

ΩΩ

Check after rerair

Check after reinstallation

Put on gloves

Cooling check

After repair work has finished, check there is no trouble.

If check is not executed, a fire, electric shock or injury may be caused. For a check, turn off the power breaker.

After repair work (installation of front panel and cabinet) has finished, execute a test run to check there is no generation of smoke or abnormal sound.

If check is not executed, a fire or an electric shock is caused. Before test run, install the front panel and cabinet.

Check the following items after reinstallation.

1) The earth wire is correctly connected.

2) The power cord is not caught in the product.

3) There is no inclination or unsteadiness and the installation is stable. If check is not executed, a fire, an electric shock or an injury is caused.

CAUTION

Be sure to put on gloves (

If not putting on gloves, an injury may be caused with the parts, etc. (∗) Heavy gloves such as work gloves

When the power was turned on, start to work after the equipment has been sufficiently cooled.

As temperature of the compressor pipes and others became high due to cooling/heating operation, a burn may be caused.

∗∗

∗) during repair work.

∗∗

Page 7

• New Refrigerant (R410A)

4. Tools

(1) Required Tools for R410A

Mixing of different types of oil may cause a troub le such as generation of sludge, clogging of capillary, etc. Accordingly, the tools to be used are classified into the following three types.

1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))

2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)

3) Tools commonly used for R410A and for conventional refrigerant (R22) The table below shows the tools exclusive for R410A and their interchangeability.

Tools exclusive for R410A (The following tools for R410A are required.)

Tools whose specifications are changed for R410A and their interchangeability

No. Used tool

Flare tool Copper pipe gauge for

adjusting projection margin

Torque wrench

Gauge manifold Charge hose

Vacuum pump adapter Electronic balance for

refrigerant charging Refrigerant cylinder Leakage detector Charging cylinder

Usage

Pipe flaring

Flaring by conventional flare tool

Connection of flare nut

Evacuating, refrigerant charge, run check, etc.

Vacuum evacuating

Refrigerant charge Refrigerant charge

Gas leakage check Refrigerant charge

Conventional air

conditioner installation

Whether new equipment can be used with conventional refrigerant

Yes

*(Note 1)

Yes

Whether conventional equipment can be used

*(Note 1)

Yes

No No No

(1) Vacuum pump

Use vacuum pump by

attaching vacuum pump adapter. (2) Torque wrench (3) Pipe cutter (4) Reamer (5) Pipe bender (6) Level vial

(7) Screwdriver (+, –) (8) Spanner or Monkey wrench (9) Hole core drill (10) Hexagon wrench (Opposite side 4mm) (11) Tape measure (12) Metal saw

Also prepare the following equipments f or other installation method and run check. (1) Clamp meter (2) Thermometer

(3) IInsulation resistance tester (4) Electroscope

Existence of new equipment for R410A

Yes

Yes Yes

Yes

(Note 2)

R410A

air conditioner installation

(Note 1) When flaring is carried out for R410A using the conventional flare tools , adjustment of projection

margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary .

(Note 2) Charging cylinder for R410A is being currently developed.

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary as the general tools.

This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone lay er.

1. Safety Caution Concerned to New Refrigerant

The pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change of refrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the f ormer refrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with new refrigerant during installation work or service work. If an incorrect work or incorrect service is performed, there is a possibility to cause a serious accident. Use the tools and materials exclusiv e to R410A to purpose a safe work.

2. Cautions on Installation/Service

(1) Do not mix the other refrigerant or refrigerating oil.

For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of the former refrigerant in order to prevent mixture of them.

(2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which are

specified for R410A.

(3) In the installation time, use clean pipe materials and work with great attention so that water and others do

not mix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean pipes.

Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.) (4) For the earth protection, use a vacuum pump for air purge. (5) R410A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refrigerant.

(If using gas for charging, composition of the refrigerant changes and then characteristics of the air condi-

tioner change.)

3. Pipe Materials

For the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriate pipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to a minimum.

(1) Copper pipe

The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type . When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipe without

seam” and one with bonded oil amount 40mg/10m or less. Also do not use crushed, deformed, discolored (especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.)

Use the flare nuts which are attached to the air conditioner unit.

(2) Joint

The flare joint and socket joint are used for joints of the copper pipe. The joints are rarely used for installa-

tion of the air conditioner. However clear impurities when using them.

Page 8

5. Recharge of Refrigerant

When recharge of the refrigerant is required, charge the new refrigerant with the specified amount in the procedure as described below .

Recover the refrigerant and check there is no refrigerant in the equipment.

Connect the charge hose to the packed valve service ports at gas side, liquid side, and balance side of the outdoor unit.

Connect the charge hose to vacuum pump adaptor.

Open the packed valves of the balance pipe fully at liquid and gas sides, and then return the valve at gas side a little to the closed side.

Open fully PMV of the outdoor unit.

• Turn on power of the outdoor unit.

• Short CN30 on I/F P.C. board of the outdoor unit.

Turn off power of the outdoor unit within 2 minutes after short-circuiting.

•

Open fully the handle Low of the gauge manifold, and then turn on the power of vacuum pump for vacuuming.

When the pressure has lowered until indication of the compound gauge pointed -0.1MPa (-76cmHg), open fully the handle Low and turn off the power of vacuum pump.

Leave it as it is for 1 to 2 minutes and check the indicator of the compound gauge does not return.

Set the refrigerant cylinder on the electron balance, connect the charging hose to connecting ports of the cylinder and the electron gauge, and then charge the liquid refrigerant from the service port at liquid side. (Shield with the gauge manifold so that refrigerant does not flow to gas side.)

When the specified amount of refrigerant cannot be charged, charge the liquid refrigerant into the service port at suction gas side while carrying out the all cooling operation. In this time, reduce slightly amount of refrigerant with valve of the cylinder for charging. The liquid refrigerant may be rapidly charged, so charge the refrigerant carefully and slowly.

Never charge the refrigerant ov er the specified amount.

Do not charge the additional refrigerant.

If charging refrigerant additionally when refrigerant gas leaks, the refrigerant composition in the refrigerating cycle

changes resulted in change of air conditioner characteristics or refrigerant over the specified standard amount is

charged and an abnormal high pressure is applied to the inside of the refrigerating cycle resulted in cause of breakage

or injury.

Set the equipment so that liquid refrigerant can be charged.

When using a cylinder with siphon pipe, liquid can be charged without inversing the cylinder.

[ Cylinder with siphon ] [ Cylinder without siphon ]

Refrigerant

cylinder

Electronic

balance

Gauge manifold

OUTDOOR unit

Electronic

balance

Gauge manifold

cylinder

Refrigerant

OUTDOOR unit

Siphon

R410A refrigerant is consisted with HFC mixed refrigerant. Therefore if the refrigerant gas is charged, the composition of the charged refrigerant changes and characteristics of the equipment changes.

6. Environment

Use “Vacuum pump method” for an air purge (Discharge of air in the connecting pipe) in installation time.

• Do not discharge flon gas into the air to protect the earth environment.

• Using the vacuum pump method, clear the remained air (Nitrogen, etc.) in the unit. If the air remains , the

pressure in the refrigerating cycle becomes abnormally high and an injury and others are caused due to burst.

Page 9

1. OUTLINE

“Super Heat Recovery Multi System” is a multi air conditioning system which enables each indoor unit in a refrigerant line to independently select cooling or heating operation. As it is available to operate simultaneously in cooling and heating modes, more amount of heat recovery becomes possible. This system is the most appropriate one for a building or etc. where cool and heat air are mixed such as a building of which temperature difference between each room is large due to influence of daylight or a building which has a server room requiring for cool air all day.

Heating and cooling operation are automatically selected in individual unit;

You can save time for operation.

For example, when heating is required for early morning and cooling for daytime, a Flow Selector Unit provides automatically a smooth selection of heating or cooling operation. Therefore you can obtain a comfortable room environment without feeling somewhat out of place and moreover you can save time to select heat/ cool operation.

INFORMATION

The Super Heat Recovery Multi system is different from the conventional Multi air conditioner in several points such as that heating and cooling operations are mixed or only a part of the air conditioner works cooling function. For this reason, the fo llowing table explains the operation modes of this air conditioner.

The following table explains representation of the operation modes in this Manual.

Operation mode Outline

1. All Cooling All indoor units are under cooling operation only without heating operation. Outdoor heat exchanger (Main heat exchanger) is used as condenser .

2. All Heating All indoor units are under heating operation only without cooling operation. Outdoor heat exchanger (Main heat exchanger) is used as ev apor ator.

3. Simultaneous operation MIU for simultaneous operation

3-1. Mainly cooling, partly

heating operation

3-2. Mainly heating, partly

cooling operation

Indoor units are under heating/cooling simultaneous operation with subjective cooling operation Outdoor heat exchanger (Sub heat exchanger) is used as condenser.

Indoor units are under heating/cooling simultaneous operation with subjective heating operation Outdoor heat exchanger (Main heat exchanger) is used as ev apor ator.

4. Defrost Using reversing operation of 4-way valve , ice of the outdoor heat exchanger is dissolv ed w ith single cooling cycle.

Page 10

1-1. Components Lineup in Super Heat Recovery Multi Using

High-efficiency Refrigerant R410A

1. Outdoor units

Corresponding HP

Model name

Cooling capacity (kW) 22.4 28.0 33.5

Heating capacity (kW) 25.0 31.5 35.5 Number of connectable

indoor units

MMY- MAP0801FT8 MAP1001FT8 MAP1201FT8

8HP 10HP 12HP

13.0 16.0 16.0

Inverter unit

2. Flow selector units (FS unit)

Model name Usage Appearance

RBM-Y1121FE Capacity rank for indoor unit : Type 007 to 030

RBM-Y1801FE Capacity rank for indoor unit : Type 036 to 056

* Accessory part (Sold separately): Connection cable kit (RBC-CBK15FE), up to 15m.

Appearance

3. Branching joints and headers

Model name Usage Appearance

RBM-BY53FE

RBM-BY103FE

Y-shape branching joint (∗3)

RBM-BY53E

RBM-BY103E

RBM-HY1043FE

4-branching header (∗4)

RBM-HY1043E

RBM-HY1083FE

8-branching header (∗4)

RBM-HY1083E

∗1 “Capacity code” can be obtained from page 11. (Capacity code is not actual capacity) ∗2 If total capacity code value of indoor unit exceeds that of outdoor unit, apply capacity code of outdoor unit. ∗3 When using Y-shape branching joint for 1st branching, select according to capacity code of outdoor unit. ∗4 Max. 6.0 capacity code in total can be connected. ∗5 This is used for branching to “cooling only” indoor unit. ∗6 Model names for outdoor described in this guide are shortened because of the space constraint.

Indoor unit capacity code (∗1)

Total below 6.4

Indoor unit capacity code (∗1)

Total below 14.2

Indoor unit capacity code (∗1)

Total below 6.4

Indoor unit capacity code (∗1)

Total below 14.2

Indoor unit capacity code (

Total below 14.2

Indoor unit capacity code (∗1)

Total below 14.2

Indoor unit capacity code (∗1)

Total below 14.2

Indoor unit capacity code (

Total below 14.2

∗

For 3 piping

For 2 piping (

For 3 piping

For 2 piping (

For 3 piping

For 2 piping (∗5)

∗

Page 11

4. Indoor units

Type Appearance Model name Capacity rank Capacity code

009 type 1 2.8 012 type 1.25 3.6 015 type 1.7 4.5 018 type 2 5.6 024 type 2.5 7.1 027 type 3 8.0 030 type 3.2 9.0 036 type 4 11.2 048 type 5 14.0 056 type 6 16.0 007 type 0.8 2.2 009 type 1 2.8 012 type 1.25 3.6 015 type 1.7 4.5 018 type 2 5.6 024 type 2.5 7.1 027 type 3 8.0 030 type 3.2 9.0

048 type 5 14.0 007 type 0.8 2.2

009 type 1 2.8 012 type 1.25 3.6 015 type 1.7 4.5 018 type 2 5.6 024 type 2.5 7.1 007 type 0.8 2.2 009 type 1 2.8 012 type 1.25 3.6 015 type 1.7 4.5 018 type 2 5.6 024 type 2.5 7.1 027 type 3 8.0 030 type 3.2 9.0 036 type 4 11.2 048 type 5 14.0 056 type 6 16.0 018 type 2 5.6 024 type 2.5 7.1 027 type 3 8.0 036 type 4 11.2 048 type 5 14.0 015 type 1.7 4.5 018 type 2 5.6 024 type 2.5 7.1 027 type 3 8.0 036 type 4 11.2 048 type 5 14.0 007 type 0.8 2.2 009 type 1 2.8 012 type 1.25 3.6 015 type 1.7 4.5 018 type 2 5.6 024 type 2.5 7.1 007 type 0.8 2.2 009 type 1 2.8 012 type 1.25 3.6 015 type 1.7 4.5 018 type 2 5.6 024 type 2.5 7.1 007 type 0.8 2.2 009 type 1 2.8 012 type 1.25 3.6 015 type 1.7 4.5 018 type 2 5.6 024 type 2.5 7.1 015 type 1.7 4.5 018 type 2 5.6 024 type 2.5 7.1 027 type 3 8.0 036 type 4 11.2 048 type 5 14.0 056 type 6 16.0

4-way Air Discharge Cassette Type

2-way Air Discharge Cassette Type

1-way Air Discharge Cassette Type

Concealed Duct Standard Type

Concealed Duct High Static Pressure Type

Under Ceiling Type

High Wall Type

Floor Standing Cabinet Type

Floor Standing Concealed Type

Floor Standing Ty pe

MMU-AP0091H MMU-AP0121H

MMU-AP0151H,

MMU-AP0181H MMU-AP0241H MMU-AP0271H MMU-AP0301H MMU-AP0361H MMU-AP0481H

MMU-AP0561H MMU-AP0071WH MMU-AP0091WH MMU-AP0121WH MMU-AP0151WH MMU-AP0181WH MMU-AP0241WH MMU-AP0271WH MMU-AP0301WH

MMU-AP0481WH

(CHINA only)

MMU-AP0071YH MMU-AP0091YH MMU-AP0121YH MMU-AP0151SH MMU-AP0181SH MMU-AP0241SH MMD-AP0071BH MMD-AP0091BH MMD-AP0121BH MMD-AP0151BH MMD-AP0181BH MMD-AP0241BH MMD-AP0271BH MMD-AP0301BH MMD-AP0361BH MMD-AP0481BH MMD-AP0561BH

MMD-AP0181H

MMD-AP0241H

MMD-AP0271H

MMD-AP0361H

MMD-AP0481H

MMC-AP0151H

MMC-AP0181H

MMC-AP0241H

MMC-AP0271H

MMC-AP0361H

MMC-AP0481H

MMK-AP0071H

MMK-AP0091H

MMK-AP0121H

MMK-AP0151H

MMK-AP0181H

MMK-AP0241H

MML-AP0071H

MML-AP0091H

MML-AP0121H

MML-AP0151H

MML-AP0181H

MML-AP0241H

MML-AP0071BH MML-AP0091BH MML-AP0121BH MML-AP0151BH MML-AP0181BH MML-AP0241BH

MMF-AP0151H

MMF-AP0181H

MMF-AP0241H

MMF-AP0271H

MMF-AP0361H

MMF-AP0481H

MMF-AP0561H

Cooling

capacity (kW)

Heating

capacity (kW)

3.2

4.0

5.0

6.3

8.0

9.0

10.0

12.5

16.0

18.0

2.5

3.2

4.0

5.0

6.3

8.0

9.0

10.0

16.0

2.5

3.2

4.0

5.0

6.3

8.0

2.5

3.2

4.0

5.0

6.3

8.0

9.0

10.0

12.5

16.0

18.0

6.3

8.0

9.0

12.5

16.0

5.0

6.3

8.0

9.0

12.5

16.0

2.5

3.2

4.0

5.0

6.3

8.0

2.5

3.2

4.0

5.0

6.3

8.0

2.5

3.2

4.0

5.0

6.3

8.0

5.0

6.3

8.0

9.0

12.5

16.0

18.0

Page 12

n Remote controller switch

˚C ˚F

TEST

SETTING

Name

Appearance

Model name

Appearance

Wired remote controller

UNIT No.

R.C. No.

CODE No.

UNIT

SET DATA

SETTING

TEST

SET

RBC-AMT21E

Simple wired remote controller

RBC-AS21E

Wireless remote controller kitName

Receiver section

ADR ADR ADR

Receiver section

Weekly timer

PROGRAM1 PROGRAM2 PROGRAM3

WEEKLY TIMER

SuMoTuWeThFr Sa

ERROR

RBC-EXW21E

Receiver section

laid separately

Model name

Type

Name

Appearance

Model name

Type

RBC-AX2U (W)-E

4-way Air Discharge

Cassette type

Central remote controller

ZONE

ALL ZONE GROUP

1234

UNIT No.

SET DATA

SETTING

No.

R.C.

SELECT ZONE

TEST

SET

GROUP

CODE

No.

TCB-SC642TLE

64 system center controller

RBC-AX22CE

Under Ceiling type

TCB-AX21E

Separate sensor type

Page 13

2. WIRING DIA GRAM

2-1. Indoor Unit

2-1-1. 4-way Air Discharge Cassette Type

Model: MMU-AP0091H, AP0121H, AP0151H, AP0181H, AP0241H,

Indoor unit

Earth screw

Symbol

TA TC1 TCJ TC2

LM1, LM2

RY302

PMV

Flow selector

S(N)R(L)

Power supply

Single phase 220-240V 50Hz 220V 60Hz

Fan motor Indoor temp sensor Temp sensor Temp sensor Temp sensor Lover motor Drain pump motor Float switch Drain control relay Pulse Motor Valve

unit earth

screw

RED

WHI

Closed end connector

Parts name

CN32 (WHI)

1 2

(Fandrive)

CN334 (BLU)

T10

RY302

RY303

Fuse T6.3A 250V~

P301

5 4 3 2 1 5 4 3 2 1

CN50 (WHI)

CN304

(GRY)

RED

CN67 (BLK)

WHI

CN66 (WHI)

CN44 (BLN)

CN68 (BLU)

BLK

1 2

4 5 6

1. indicates the terminal block, letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at site.

3. indicates the control P.C. board.

Color identification

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BRN : BROWN

BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE GRN : GREEN

PMV

6 4 3 1 2 5 6 4 3 1 2 5

CN333

1 2 3 4 5 1 2 3 4 5 6

Motor drive

circuit

–

CN61 (YEL)

1 2 3 4 51 2 3

(WHI)

Fuse

T3.15A

250V~

1 2 3 4 5 6 1 2 3 4 5

CN60 (WHI)

1 2

3 4 5 6

(Option)

Power supply

circuit

U2U1

Outdoor unit

LM2

1 2 3 4 5 1 2 3 4 5

CN82 (BLU)

Indoor control P.C. board

MCC-1402

DC20V DC15V DC12V DC7V

CN81 (BLK)

1 2 3 4 5

CN40 (BLU)

1 2 1 2

BLU

WHI

BLK WHI BLK

CN1

(WHI)

1 2 1 2

Wired remote

controller

Adaptor for wireless

remote controller

BLU

1 2 1 2

1 2 3 4 5 1 2 3 4 5

CN41 (BLU)

1 2 3 1 2 3

BLK

WHI

CN001 (WHI)

CN309

(YEL)

CN01 (WHI)

3 3 2 2 1 1

CN02 (BLU)

LM1

1 2 3 4 5 1 2 3 4 5

CN33 (WHI)

1 2 3 1 2 3

1 2

Network adaptor (Option)

1 2

Network adaptor P.C. board

1 2 1 2

X Y

CN20 (BLU)

1 2 3 4 5

MCC-1401

CN03

(RED)

3 1 321

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

CN100

(BRN)

CN80

(GRN)

CN73

(RED)

CN70

(WHI)

CN34

(RED)

121

PNL

2 3

EXCT

2 1

Filter input

MMU-AP0271H, AP0301H, AP0361H, AP0481H, AP0561H

TCJ

TC2

TC1

Page 14

Color

indication

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE BRW : BROWN GRN : GREEN

Indoor unit

Earth screw

220-240V 50Hz 220V 60Hz

Flow selector

S(N)R(L)

Power supply Single phase

unit earth

screw

Closed end connector

CN039

(YEL)

WHI

121

RED

343

565

(BLK)

CN304

(GRY)

CN066

(WHI)

CN044 (BRW)

Line Filter

Outdoor unit

1 2

U2U

P301

CN067

(BLK)

CN040

(BLU)

1 2 1 2

BLU

RY004

Fuse

T5.0A 250V~

CN041

(BLU)

1 2 3 1 2 3

BLK

CN1

(WHI)

1 2 1 2

Remote controller

FAN CN083

(WHI)

RED

RY007

3 3

1 1

CN02 (BLU)

BLK

9 8 7 6 9 8 7 6

ORN

5 4 3 2 1 5 4 3 2 1

HML UL

RY006

RY005

CN050

(WHI)

1 2 3 4 5

Network

1 2 1 2

adaptor (Option)

CN01 (WHI)

MCC-1401

BLU

YEL

RY002

1 2 3 1 2 3

CN068

(BLU)

RY001

1 2 1 2

1 2 3 1 2 3

(GRN)

CN033

Indoor control P.C. board

Power supply

circuit

4 5 6

CN075

(WHI)

CN02 (YEL)

CN01

(WHI)

CN074

(WHI)

1 2 3 1 2 3

1 2 3

1 2 3 4 5 6 1 2 3 4 5 6

Sub P.C. board

MCC-1520

1 2 3 4 5 6 1 2 3 4 5 6

1 1 2 2

CN03

(RED)

1. indicates the terminal block, letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at site.

3. indicates the control P.C. board.

1 2 3 1 2 3

1 2 3 4 5 61 2 3 4 5 6

CN061

(YEL)

(RED)

CN030

6 4 3 6 4 3

1 2 3 1 2 3

CN032

(WHI)

1 2

Fan drive

Symbol

FM RC

TC1,TC2,TCJ

RY001 RY002 RY004

RY005~007

PMV

1 2 5 1 2 5

PMV

4 5 6

(BLU)

4 5 6

CN082

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

CN100 (BRW)

CN080

(GRN)

CN073

(RED)

CN070

(WHI)

CN081

(BLK)

CN060

(WHI)

1 2 3 4 5 6

Option

Parts name

Fan motor Running capacitor Transformer Louver motor Indoor temp sensor Temp sensor Louver control relay Drain control relay Heater control relay Fan motor control relay Float switch Drain pump motor Pulse Motor Valve

1 2 3

1 2

1 2 3 4 5

121

PNL

EXCT

1 2

TCJ

TC2

Filter

TC1

2-1-2. 2-way Air Discharge Cassette Type

Model: MMU-AP0071WH, AP0091WH, AP0121WH, AP0151WH, AP0181WH,

MMU-AP0241WH, AP0271WH, AP0301WH, AP0481WH

Page 15

2-1-3. 1-way Air Discharge Cassette Type (Compact type)

Model: MMU-AP0071YH, AP0091YH, AP0121YH

Color

indication

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE BRW : BROWN GRN : GREEN

Indoor unit

Earth screw

Flow selector

WHI

RED

S(N)R(L)

Power supply

Single phase 220-240V 50Hz 220V 60Hz

unit earth

screw

Closed end connector

WHI

CN304

(GRY)

CN309

(YEL)

AC IN

CN066

(WHI)

BLU

121

343

565

CN301

(BLK)

Heater

Line Filter

Outdoor

unit

1 2

U2U

CN067

(BLK)

CN044 (BRW)

1 2 1 2

BLU

RY004

Fuse

T5.0A

CN040

(BLU)

1 2 1 2

BLU

BLK

CN1

(WHI)

1 2 1 2

Remote controller

FAN CN083

CN041

(BLU)

1 2 3 1 3

AI-NET central control terminal

(WHI)

BLK

RED

9 8 7 6 9 8 7 6

HML UL

RY007

CN050

(WHI)

1 2 3 4 5

MCC-1401

1 2

CN01 (WHI)

1 2

1 1

Network

2 2

adaptor

CN03

P.C. board

(RED)

BLU

ORN

5 4 3 2 1 5 4 3 2 1

RY006

RY005

Network adaptor (Option)

2 1

CN02 (BLU)

233 1

YEL

RY002

1 2 3 1 2 3

(BLU)

CN068

RY001

2 1 2 1

1 2 3 1 2 3

(GRN)

CN033

2 1 2 1

1 2 3 1 2 3

Indoor control P.C. board

Power supply

circuit

CN074

(WHI)

CN075

(WHI)

1 2 3 1 2 3

1. indicates the terminal block, letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at site.

3. indicates the control P.C. board.

1 2 3

4 5 6

1 2 3 4 5 6 1 2 3 4 5 6

Sub P.C. board

MCC-1520

1 2 3 4 5 6 1 2 3 4 5 6

CN02 (YEL)

CN01 (WHI)

CN061

(YEL)

1 2 3 4 5 61 2 3 4 5 6

(RED)

CN030

6 4 3 6 4 3

1 2 3 1 2 3

CN032

(WHI)

1 2

Fan drive

Symbol

FM RC TR LM TA

TC1,TCJ

RY001 RY002 RY004

RY005~007

FS DM

PMV

1 2 5 1 2 5

4 5 6 4 5 6

CN082

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

CN100 (BRW)

CN080

(GRN)

CN073

(RED)

CN070

(WHI)

CN081

(BLK)

CN060

(WHI)

1 2 3 4 5 6

Option

Fan motor Running capacitor Power transformer Louver motor Indoor temp sensor Temp sensor Flap motor control relay Drain pump control relay Heater control relay Fan motor control relay Float switch Drain pump motor Pulse Motor Valve

PMV

(BLU)

Parts name

2 1

1 2 3

1 2

1 2 3 4 5

121

PNL

EXCT

1 2

TCJ

TC1

Filter

Page 16

Indoor unit

earth screw

220-240V 50Hz

Flow selector

R(L) S(N)

Power supply single phase

220V 60Hz

1 2

313 4

P301

BLK

RY004

(GRY)

CN304

(YEL)

313

AC IN

CN066 (WHI)

CN044 (BRW)

unit earth

screw

Line Filter

Closed-end

connector

CN309

FUSE

T5.0A 250V~

313

(BLK) CN067

1 2

CN040

EMG

U1 U2

Outdoor unit Remote Controller

CN041

(BLU)

1 233 1 2 3 4 5

112

BLU

BLK

112

U2 A B

2 112 CN1

RED BLK ORN BLU YEL

FAN

CN083

(WHI)

9 5 3 1

RY007

BLK

1 1

5 3 1779

M LUL

RY006

RY005

CN050

(WHI)

CN01(WHI)

CN02

(BLU)

CN03(RED)

112

113

RY001

Power supply

circuit

1 2 3 4 5 6 1 2 1 23 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6

1 2 3 4 5 6 1 2 3 4 5 6

Sub P.C. board

MCC-1520

1 2 3 4 5 6 1 2 3 4 5 6

Network Adapter

112

X Y

(Option)

MCC-1401

CN068

(BLU)

RY002

CN074

(WHI)

133 1

113

1. Indicates the terminal bolock, letter. Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at side.

3. indicate the control p.c. board.

CN033

(GRN)

Control P.C. board

for Indoor unit

CN075

(WHI)

CN02 (YEL)

CN01 (WHI)

CN030

(RED)

113

MCC-1403

CN061

(YEL)

1 2 3 4 5 6 1 2 3 4 5 6

CN032

(WHI)

FAN

DRIVE

Symbol

FM RC TR LM TA TC1,TC2,TCJ RY001 RY002 RY005~007 FS DM PMV

PMV

1 234 56 1 234 56

CN060

(WHI)

OPTION

PMV

CN082

(BLU)

212

1 2

1 2 313

1 2 3

1 2

1 2 3 4 5

1 2

PNL

EXCT

FILTER

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

CN100 (BRW)

CN080

(GRN)

CN073

(RED)

CN070

(WHI)

CN081

(BLK)

Parts name

Fan motor Running capacitor Transformer Lover motor Indoor temp sensor Temp sensor Louver control relay Drain control relay Fan motor control relay Float switch Drain pump motor Pulse motor valve

TCJ

TC2

TC1

Color

indication

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE BRW : BROWN GRN : GREEN

Model: MMU-AP0151SH, AP0181SH, AP0241SH

Page 17

2-1-4. Concealed Duct Standard Type

Model: MMD-AP0071BH, AP0091BH, AP0121BH, AP0151BH, AP0181BH, AP0241BH

Indoor unit

S(N)R(L)

Earth screw

Indoor unit power supply

Single phase 220-240V 50Hz 220V 60Hz

RED

WHI

Closed end connector

Outdoor unit

1 3 1 2 2

Reactor

WHI

Flow selector

U2U

unit earth

screw

WHI

Wired remote

CN68 (BLU)

CN304

(GRY)

RED

CN67

(BLK)

WHI

BLK

CN66 (WHI)

2 1

CN44

(BRW)

BLK WHI BLK

CN1

(WHI)

1 2 1 2

controller

CN334

RY302

(WHI)

Fuse

T6.3A

250V~

P301

CN41

CN40

(BLU)

1 2 3

1 2

1 2 3

BLK

BLU

1 2 1 2

Adaputor for wired

remote controller

11223445

BLK

WHI

CN001 (WHI)

545

PMV

6 4 3 1 2 5 6 4 3 1 2 5

1 2 3 4 5 6 1 2 3 4 5 6

Fuse

T3.15A

250V~

4 5 6

T10

Power supply

circuit

CN309

(YEL)

CN333

(WHI)

1 2 3 1 2 3

1 3 1 3 5

Motor drive

circuit

–

CN50 (WHI)

1 2 3

CN02 (BLU)

3 3 2 2 1 1

CN01

(WHI)

1 2 1 2

Network adaptor P.C. board

1 2 1 2

Network adaptor (Option)

CN03

(RED)

X Y

1. indicates the terminal block, letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at site.

3. indicates the control P.C. board.

CN61 (YEL)

CN82

(BLU)

Indoor control P.C. board

DC20V DC15V DC12V DC7V

CN32 (WHI)

CN60 (WHI)

1 21 2 3 4 5 61 2 3 4 51 2 31 2 3

(Signal output)(Fan drive)

1 2 3 4 5

Color identification

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BRW : BROWN

Symbol

FM TA

TC1,TC2,TCJ

DM FS

RY302

PMV

CN33 (WHI)

CN81 (BLK)

1 2 3 4 5

BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE GRN : GREEN

Parts name

Fan motor Indoor temp sensor Indoor temp sensor Drain pump motor Float switch Drain pump control relay Pulse Motor Valve

CN20 (BLU)

3 1 321

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

CN100

(BRN)

CN80

(GRN)

CN73 (RED)

CN70 (WHI)

CN34

(RED)

1 2 3

1 2

121

PNL

EXCT

MMD-AP0271BH, AP0301BH, AP0361BH, AP0481BH, AP0561BH

TCJ

TC2

TC1

Page 18

Color

indication

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE BRW : BROWN GRN : GREEN

RED

WHI

Closed end connector

Indoor unit

Earth screw

S(N)R(L)

Power supply

Single phase 220-240V 50Hz 220V 60Hz

(BLK)

CN304

(GRY)

Flow selector

unit earth

screw

T10A,250V~

Closed end connector

Spark

killer

43F1

FAN CN083

P301

RY004

CN309

(YEL)

CN067

(BLK)

1 2

YEL

CN066

(WHI)

CN044 (BRW)

EMG

Outdoor unit

REDRED F

RED

Fuse

T5.0A

U2U

43F1

WHI

1 2 3 4

CN040

(BLU)

1 21 2 1 2

Remote controller

43F1

RED

GRY

1 2 3 4

WHI

RED

(WHI)

CN041

1 2 3 1 3

1 2 1 2

REDWHI

9 8 7 6

HML UL

RY007

(BLU)

CN1

CN02

(WHI)

(BLU)

GRY

4 2

5 4 3 2 1

RY006

RY005

CN050

(WHI)

1 2 3 4 5

1 2

CN01 (WHI)

1 2

3 3

1 1

1 2 1 2

X Y

WHI

F1F2F3F

BLU

RY002

Network adaptor (Option)

MCC-1401

CN03

(RED)

ORN

BLK

(Option)

1 2 3 1 2 3

(BLU)

CN068

RY001

1 2 3 1 2 3

(GRN)

CN033

1 2 3 1 2 3

CN030

(RED)

1 2 1 2

CN104

(YEL)

Indoor control P.C. board

Power supply

circuit

CN074

(WHI)

1 2 3

4 5 6

1 2 3 4 5 6 1 2 3 4 5 6

Sub P.C. board

MCC-1520

1 2 3 4 5 6 1 2 3 4 5 6

1. indicates the terminal block, letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at site.

3. indicates the control P.C. board.

4. When attaching a drain pump, exchange CN030 connector with a connector of the float switch.

5. A part is connected to the terminal block. When exchanging to the outside static pressure necessary at the local site, check the terminal No. and lead color of the fan motor in the below diagram,

BRN

and then exchange the lead wire indicated by the arrow mark ( ),

6. Pay attention to change static pressure because the outside static pressure of H tap in 50 or 60Hz.

Wired for MMD-AP0481 only (BRN Wire)

Motor over heating protection switch

CN075

(WHI)

BLK WHI

GRY RED

1 2 3 4 5 61 2 3 4 5 6

T10

CN02 (YEL)

CN01 (WHI)

CN061

(YEL)

49F

TCJ

1 2 1 2

CN102

(RED)

CN032

(WHI)

1 2

Fan drive

BLU ORN

BRN

1 2 1 2

CN060

(WHI)

TC1

1 2 3 1 2 3

CN080 (GRN)

CN073 (RED)

CN070

(WHI)

CN081

(BLK)

CN082

(BLU)

TC2

CN101

(BLK)

1 2 3 4 5 6

Option

Sold

separately

CN100

(BRN)

1 2

PNL

3 1

EXCT

2 1

Filter

2 1

2 3 4 5

Symbol

FM RC TR TA

TC1,TC2,TCJ

RY005~007

RY001 RY002

PMV

43F1

DM FS

PMV

Parts name

Fan motor Running capacitor Transformer Indoor temp sensor Temp sensor Fan motor control relay Flap motor control relay Drain control relay Pulse Motor Valve Fuse Fan motor control relay Drain pump motor Float switch

2-1-5. Concealed Duct High Static Pressure Type

Model: MMD-AP0181H, AP0241H, AP0271H, AP0361H, AP0481H

Page 19

2-1-6. Under Ceiling Type

Model: MMC-AP0151H, AP0181H, AP0241H, AP0271H, AP0361H, AP0481H

PMV

1 2 3 4 5 1 2 3 4 5

Indoor unit

Earth screw

Power supply

single phase 200-240V 50Hz 200V 60Hz

RED

S(N)R(L)

WHI

RED

WHI

Flow selector

unit earth

screw

Closed end

terminal

U2U

Outdoor unit

CN68 (BLU)

CN304

(GRY)

CN67

(BLK)

P301

BLK

1 2

BLU

121

BLU

BLK

121

BLK

U2U

WHI BLK BLKWHI

1 2 1 2

Wired remote

controller

RY302

RY303

Fuse

T6.3A 250V~

CN66 (WHI)

CN40 (BLU)

CN41

(BLU)

CN1

(WHI)

5 4 1 5 4 3 2 1

CN309

(YEL)

1 2 3

BLK

WHI

CN001 (WHI)

1 2 1 2

Adpter for wireless

remote controller

CN334

1 2 3 4 5

(WHI)

1 2 3 4 5

Motor drive

circuit

–

CN50 (WHI)

4 5 6

1. indicates the terminal block, letter at inside

2. A dotted line and broken line indicate the wiring at site.

3. indicates the control P.C. board.

CN333

(WHI)

Fuse

3 3 2 2 1 1

CN02 (BLU)

CN61 (YEL)

T10

CN01 (WHI)

T3.15A

Network adaptor P.C. board

1 2 1 2

Network adaptor (Option)

CN03

(RED)

Power supply circuit

CN32 (WHI)

X Y

indicates the terminal number.

1 2 3 4 5 1

CN82

(BLU)

Indoor control P.C. board

DC20V DC15V DC12V DC7V

CN60 (WHI)

1 21 2 3 4 5 6

Option GRLFandrive

1 2 3 4 5 1 2 3 4 5

CN81 (BLK)

1 2 3 4 51 2 3 4 51 2 31 2 3

Sold separately

CN33 (WHI)

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BRW : BROWN

TC,TC2,TCJ

1 3 123

CN20 (BLU)

1 2 3 4 5

Color identification

Symbol

FM TA

RY302

DM FS

CN34 (RED)

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

CN100 (BRW)

CN80

(GRN)

CN73

(RED)

CN70

(WHI)

Fan motor Indoor temp sensor Temp sensor Louver motor Drain control relay Drain pump motor Float switch

121

PNL

2 3

EXCT

2 1

FILTER

BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE GRN : GREEN

Parts name

TCJ

TC2

TC1

Page 20

2-1-7. High Wall T ype

545

Model: MMK-AP0071H, AP0091H, AP0121H, AP0151H, AP0181H, AP0241H

RED

WHI

R(L) S(N)

Power supply

single phase

220-240V 50Hz

220V 60Hz Indoor unit

Earth screw

Flow selector

unit earth

screw

Closed-end

connector

RED

WHI

U1 U2

Outdoor

unit

U1 U2

CN68

(BLU)

CN304

(GRY)

CN67 (BLK)

P301

BLK

CN66

(WHI)

313

1 2

A B X Y

WHI BLK

112

CN1

(WHI)

Wired remote

controller

CN334

(WHI)

RY302

RY303

FUSE

T6.3A 250V~

CN40

(BLU)

1 231 3

BLU

BLK

GRY

WHI BLK

112

CN001

(WHI)

Adapter for

wireless remote

controller

BLK

CN41 (BLU)

1 21 2

1 2 3 1 2 3

CN333

1 2 3 4 5 6 1

223445

1 3

BLK

WHI

(WHI)

CN309

(YEL)

1 1

1 3 1 3 5

Motor drive

circuit

CN50 (WHI)

1 2 31 3

CN01(WHI)

CN02

(BLU)

CN03(RED)

4 5

112

1 1 2 3 4 5 6

T3.15A 250V~

Network Adapter

(Option)

MCC-1401

PMV

1 234 56 1 234 56

CN82 (BLU)

FUSE

CN61 (YEL)

1 2 3 4 5

CN33 (WHI)

Power

supply

circuit

CN32 (WHI)

1 2

Fandrive

Color

indication

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE BRW : BROWN GRN : GREEN

TC2

TCJ

113

CN34 (RED)

21212121212

CN104

CN102

(YEL)

(RED)

CN101

(BLK)

TC1

112 31 2 3 4 5 CN100

(BRW)

Control P.C. board

for Indoor unit

DC20V DC15V DC12V DC7V

CN60 (WHI)

1 2 3 4 5 6

Option

MCC-1402

CN81 (BLK)

1 2 3 4 5

CN20 (BLU)

1 2 3 4 5

1. Indicates the terminal bolock. Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at side.

3. indicate the control p.c. board.

Symbol

FM TA TC1,TC2,TCJ PMV LM RY303

Parts name

Fan motor Indoor temp sensor Temp sensor Pulse motor valve Lover motor Louver control relay

CN103

(GRN)

CN080

(GRN)

CN73

(RED)

CN70 (WHI)

1 2

1 2 3

1 2

EXCT

Page 21

Indoor unit

earth screw

220-240V 50Hz

AC IN RED

R(L) S(N)

Power supply

single phase

220V 60Hz

WHI

Flow selector

unit earth

screw

RED

Closed-end

connector

WHI

323 4

P301

(BLK)

313

T5.0A 250V~

313

212

CN040

(BLU)

RY004

(GRY) CN304

(YEL) CN309

FUSE

CN041

(BLU)

1 233 1 2 3 4 5

112

BLU

BLK

U2 A B

CN067

(BLK)

CN066

(WHI)

Line Filter

U1 U2

Outdoor unit Remote Controller

112

CN1

RED BLK ORN BLU YEL

FAN

CN083

(WHI)

9 5 3 1

RY007

BLK

5 3 1779

M LUL

RY006

RY005

CN050

(WHI)

CN02

(BLU)

1 1

112

CN01(WHI)

CN03(RED)

112

X Y

113

1 3

RY001

Power supply

circuit

1 2 3 4 5 6 1 2 1 23 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6

1 2 3 4 5 6 1 2 3 4 5 6

Sub P .C. board

MCC-1520

1 2 3 4 5 6 1 2 3 4 5 6

Network Adapter

(Option)

CN068

(BLU)

RY002

CN074

(WHI)

MCC-1401

1. Indicates the terminal bolock. Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at side.

3. indicate the control p.c. board.

(GRN)

1 2 3 4 5 6 1 2 3 4 5 6

CN033

Control P.C. board

for Indoor unit

MCC-1403

CN061

CN075

(YEL)

(WHI)

T10

CN02 (YEL)

CN01 (WHI)

PMV

2-1-8. Floor Standing Cabinet Type

Model: MML-AP0071H, AP0091H, AP0121H, AP0151H, AP0181H, AP0241H

1 234 56 1 234 56

PMV

CN082

(BLU)

CN032

(WHI)

112 3

CN060

(WHI)

CN030

(RED)

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

CN100

(BRN)

CN080

(GRN)

CN073

(RED)

CN070

(WHI)

CN081

(BLK)

212

1 2

212

1 2 3

1 2

1 2 3 4 5

1 2

PNL

EXCT

FILTER

TCJ

TC2

TC1

Color

indication

RED : RED WHI : WHITE

FAN

DRIVE

OPTION

YEL : YELLOW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE BRW : BROWN GRN : GREEN

Symbol

FM RC TR TA TC1,TC2,TCJ RY001 RY002 RY004 RY005~007 PMV

Parts name

Fan motor Running capacitor Transformer Indoor temp sensor Temp sensor Louver control relay Drain control relay Heater control relay Fan motor control relay Pulse motor valve

Page 22

Indoor unit

earth screw

RED

WHI

RED

R(L) S(N)

Power supply

single phase

220-240V 50Hz

220V 60Hz

Flow selector

unit earth

screw

Closed-end

connector

WHI

GRN

RED

RED BLK ORN BLU YEL

FAN

CN083

(WHI)

9 5 3 1

5 3 1779

For AP0071BH,AP0091BH,AP0121BH

112

Network

adapter

CN02

(BLU)

112

CN01(WHI)

CN03(RED)

MCC-1401

(Option)

1 1 2 2

CN03 (RED)

U1 U2

Outdoor unit

A B X Y

2 112 CN1

Remote Controller

1 1

1. Indicates the terminal bolock. Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at side.

3. indicate the control p.c. board.

GRN

R301 (BLK)

AC IN

EMG

RED

WHI

313

T5.0A 250V~

313

CN066 (WHI)

CN044 (BRW)

(GRY) CN304

(YEL) CN309

FUSE

(BLK) CN067

RY004

CN040

(BLU)

112

424 5

RED BLK ORN BLU YEL

FAN

CN083

(WHI)

CN041

(BLU)

1 233 1 2 3 4 5 1

5 3 1779

9 5 3 1

M LUL

RY007

RY006

indication

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE BRW : BROWN GRN : GREEN

RY005

CN050

(WHI)

Color

CN068

(BLU)

RY002

CN074

(WHI)

133 1

113

CN033 (GRN)

113

RY001

Control P.C. board

for undoor unit

Power supply

circuit

CN075

MCC-1520

(WHI)

CN02 (YEL)

CN01 (WHI)

1 2 3 4 5 6 1 2 1 23 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6

1 2 3 4 5 6 1 2 3 4 5 6

Sub P.C. boar d

1 2 3 4 5 6 1 2 3 4 5 6

MCC-1403

CN061

(YEL)

112 3 CN030

(RED)

Symbol

FM RC TR TA TC1,TC2,TCJ RY001 RY002 RY004 RY005~007 PMV

Fan motor Running capacitor Transformer Indoor temp sensor Temp sensor Louver control relay Drain control relay Heater control reley Fan motor control relay Pulse motor valve

CN032

(WHI)

FAN

DRIVE

PMV

1 234 56 1 234 56

1 2 3 4 5 6 1 2 3 4 5 6

CN082

CN104

(BLU)

CN102

(RED)

CN101

CN100

(BRW)

CN080

(GRN)

CN073

(RED)

CN070

CN081

CN060

(WHI)

OPTION

Parts name

(YEL)

(BLK)

(WHI)

(BLK)

PMV

212

1 2

131 2

1 2 3

1 2

1 2 3 4 5

1 2

PNL

EXCT

FILTER

TCJ

TC2

2-1-9. Floor Standing Concealed Type

Model: MML-AP0071BH, AP0091BH, AP0121BH, AP0151BH, AP0181BH, AP0241BH

TC1

Page 23

Indoor unit

earth screw

RED

WHI

R(L) S(N)

Power supply

single phase

220-240V 50Hz

220V 60Hz

Flow selector

unit earth

screw

Closed-end

connector

RC 313 4

787

BRW

P301

(BLK)

(GRY)

CN304

(YEL)

313

CN309

AC IN

T5.0A 250V~

313

(BLK) CN067

CN066 (WHI)

1 2

CN044 (BRW)

CN040

(BLU)

EMG

112

BLU

112

Line Filter

U1 U2

Outdoor unit Remote Controller

CN083

RY004

FUSE

CN041

(BLU)

1 233 1 2 3 4 5 1

BLU

BLK

U2 A B

112

CN1

RED BLK ORN BLU YEL

FAN

(WHI)

9 5 3 1

RY007

BLK

1 1

221

5 3 1779

M LUL

RY006

RY005

CN050

(WHI)

CN01(WHI)

CN02

(BLU)

CN03(RED)

Network Adapter

112

MCC-1401

X Y

(Option)

CN068

(BLU)

RY002

CN074

(WHI)

113

RY001

CN033 (GRN)

113

Control P.C. board

Power supply

circuit

CN075

MCC-1520

(WHI)

CN02 (YEL)

CN01 (WHI)

1 2 3 4 5 6 1 2 1 23 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6

1 2 3 4 5 6 1 2 3 4 5 6

Sub P.C. board

1 2 3 4 5 6 1 2 3 4 5 6

1. Indicates the terminal bolock, letter. Letter at inside indicates the terminal number.

2. A dotted line and broken line indicate the wiring at side.

3. indicate the control p.c. board.

CN030

(RED)

112 3

for Indoor unit

MCC-1403

CN061

(YEL)

PMV

1 2 3 4 5 6 1 2 3 4 5 6

CN060

CN032

(WHI)

FAN

OPTION

DRIVE

Symbol

FM RC TR LM TA TC1,TC2,TCJ RY001 RY002 RY005~007 PMV

2-1-10. Floor Standing Type

Model: MMF-AP0151H, AP0181H, AP0241H, AP0271H, AP0361H, AP0481H, AP0561H

1 234 56 1 234 56

PMV CN082

(BLU)

CN104

(YEL)

212

TCJ

CN102

(RED)

212

TC2

CN101

(BLK)

131

CN100

(BRW)

CN080

(GRN)

CN073

(RED)

CN070

(WHI)

CN081

(BLK)

TC1

1 2

PNL

EXCT

FILTER

1 2 3 4 5

Color

indication

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE BRW : BROWN GRN : GREEN

Parts name

Fan motor Running capacitor Transformer Lover motor Indoor temp sensor Temp sensor Louver control relay Drain control relay Fan motor control relay Pulse motor valve

Page 24

112

U1 U2 U3 U4 U5 U6

CN309(WHI)

Outdoor

unit

SV61

SV42

CN311(BLU)

SV41

CN310(WHI)

SV51

CN312(WHI)

SV2

CN324(RED)

SV3A

CN313(YEL)

SV3B

CN314(BLK)

SV3C

CN322(WHI)

SV11

CN319(WHI)

SV12

CN316(WHI)

Heater 1

CN315(BLU)

T Heater 2

Symbol

U1 U2 U5 U6

Indoor

unit

U1 U2 U3 U4

Central remote

controller

CM1, CM2 PMV1, PMV2, PMV3

SV2, SV41, SV42, SV51, SV3A, SV3B, SV3C, SV3D , SV3E, SV61, SSV11, SV12

4WV1 COMP1, COMP2 TS1, TS2 TD1, TD2 TE1 TO TK1, TK2, TK3, TK4 TL HEATER1, HEATER2, ACCUM HEATER FM PS PD 63H1, 63H2 MG-SW OCR

BRW

BLU

112

CN01

CN03

(BLU)

(WHI)

BLU

313

BLU

BLU BLU

BLU

BLU BLU

BLU

BLU BLU

BLU

BLU BLU

CR500

CR503

CR502

4 3

CR504

212

313

CR506

313

CR507

313

CR508

313

CR509

CR513 2 1

313

CR514

CR516 131

CR517 131

PMV1

WHI

RED

BRN

BLU

ORN

YEL

WHI

CN300

(WHI)

RY500

RY503

RY502

RY504

RY506

RY507

RY508

RY509

RY513

RY514

RY516

RY517

Parts name

RED

6 5 4 3 2 1 6 5 4 3 2 1

11223

6 5 4 3 2 1 6 5 4 3 2 1

Compressor Pulse motor valve

2-way valve coil 4-way valve coil

Compressor case thermo. Pipe temp. sensor (Inlet) Pipe temp. sensor (Outlet) Heat exchange temp. sensor Air temp. sensor Oil temp. sensor Liquid temp. sensor Case heater, 230V, 26W Fan motor (DC) Low pressure sensor High pressure sensor High pressure switch Magnet switch Overcurrent relay

BRN

PMV2

BLU

CN301

(WHI)

ORN

YEL

WHI

PMV3

RED

BRN

BLU

ORN

6 5 4 3 2 1 6 5 4 3 2 1

CN302

(RED)

Pressure

Sensor

RED

BLK

WHI

RED

YEL

WHI

1 2 1 2

BRN

Accumulator

heater

Color

indication

RED : RED WHI : WHITE YEL : YELLOW BLU : BLUE BLK : BLACK GRY : GRAY PNK : PINK ORN : ORANGE BRN : BRWN VLT : VIOLET

BLK

4 3 2

4 3 1

4 3 2 1

CN501

CN500

(RED)

(WHI)

Interface Control P.C. Board

MCC-1429

1 2 3

(Srvice)

4 5 6

CN800

CN30

2 3 4 5 6 7 8 9

CN802

Flash

RY510

CR 510CR518

33221

CN321

(RED)

BLK

SV3ESV

Option Board

WHI

4 3 2 1 4 3 2 1

CN508 (RED)

SW11

SW06 CN31

RY521RY511

CN323

(WHI)

Noise filter P.C. board

MCC-1366

L1L2L3N

4 3 2 1 4 3 2 1

431ON2

SW07

CN32

SW01

CR521 CR519CR511

1 3

CN317

(BLU)

1 3

BLK

4WV1

Power supply

terminal

Option

Board

4 3 2 1 4 3 2 1

CN509

CN510

(BLK)

(WHI)

31ON2

SW13

SW12

431ON2

SW09

SW08

SW06

SW05SW04

D603D602D601D600 D604

SW02 SW03

RY519RY518

CN307(WHI)

4 3 2 1

2 1

ORN

Comp2

Parts layout

U1U2U3U4U5U

Fan IPDU

Connecting terminal

MCC-896

Power supply

for fan

MCC-1439

Comp. IPDU

MCC-1502

SW30

431ON2

CN305(RED)

5 3 1 3 17

7 5

RED

BLU

No.1

Option Board

4 3 2 1 455 3 2 1

CN513

(BLU)

31ON2

SW14

SW10

BLK BLK

3 1 3 1

ORN

Comp1

MGSW

OCR

Option Board

4 3 2 1 4 3 2 1

CN512 (BLU)

431ON2

T6.3A FUSE

1 1

RED L1L2L3

ORN

Interface

control

P.C. board

(I/F)

MCC-1429

Comp. IPDU

No.2

MCC-1502

WHI

T6.3A FUSE

332

BLK

T6.3A FUSE

4 4

GRY N

1 3 1 3

CN306

(WHI)

CN400

(WHI)

63H1

63H2

1 3 1 3

BLU(BLK)

313

CN308

(BLU)

CN502

(WHI)

313 CN503 (PNK)

212

CN504

(WHI)

212

CN522

(BLK)

212

CN505 (GRN)

212

CN507

(YEL)

313 CN514

(BLK)

313 CN515 (GRN)

313 CN516 (RED)

313 CN523

(YEL)

212

CN521

(WHI)

4 4

313

CN511 (GRN)

2 2

313 CN100

(BLK)

CN402

CN401

CN600(WHI) 5 5 4 4 313 2 2

CN325

(YEL)

Option

Power Supply

3phase

380-415V 50Hz

1. The two-dot chain line indicates wiring at the local site, and the dashed line indicates

2. , , and indicate the terminal board and the numerals indicate the terminal numbers.

3. indicates P.C. board.

TD1 (YEL)

BLU(BLK)

TD2 (RED)

BLU(BLK)

BLK

TS1

BLK

(GRY)

BLK

TS2

BLK

TE1

BLK

(BLK)

BLK

(BLK)

BLU(BLK)

TK1 (BLK)

BLU(BLK)

TK2 (BLU)

BLU(BLK)

TK3 (BLU)

BLU(BLK)

TK4 (GRN)

BLU(BLK)

BLK

(WHI)

Option board

BLU

Transformer

WHI

RED

PNK

RED

BLU

WHI

BLK

Earth screw

RED

WHI

BLK

GRY

accessories sold separately and service wires, respectively.

* Be sure to fix the electric parts cover surely with two screws.

(Otherwise water enters into the box resulting in a trouble.)

RED

WHI

BLK

UVW

FAN IPDU

P.C. Board

MCC-896, 897

CN25 (WHI)

3 BLK WHI

CM2

RED YEL BLU

YEL

–

CN01 (WHI)

BLU

CM1

3 1 3 1

CN26 (BLU)

RED

WHI

BLK

GRY

W V U

CN25 (WHI)

BLK WHI RED YEL BLU

BLK

5 4 1 5 4

CN11 CN10 CN09 CN22 CN23

BLU

313

YEL

BLK

WHI

BLU

RED

PNK

3 1 3 1

1 1 2 2

CN26 (BLU)

3 3

CN11

CN10

CN09 CN22 CN23

YEL

+ – + –

Noise filter

P.C. board MCC-1366

CN21

CN01

CN02

CN03

CN04

CN23(BLU)CN22(WHI)

1 3 1 3

PNK

RED

BLU

WHI

BLK

3 2 3 2 1

CN06 (WHI)

IPDU Board (2)

MCC-1502

CN15 CN13

YEL

BLU

CN506(BLK)

CN500

(WHI)

Power supply

P.C. board for FAN

MCC-1439

CN503

(WHI)

CN504 CN505(RED)

1 2 1 2

BLK

WHI

PNK

RED

BLU

PNK

1 2 5

3 2

5 4 1

1 2

3 2 1

5 4

CN06 (WHI)

IPDU P.C. Board (1)

MCC-1502

CN15

CN13

BLU

BLK

RED RED

CN17

WHI

CN18

BLK BLK

CN19

GRY GRY

CN20

GRY

1 3 1 3

PNK

RED

BLU

WHI

BLK

3 1

3 2

5 4 1

3 1

3 2 1

5 4

CN18

CN17

(RED)

(BLK)

CN03

CN02

CN01

CN08 WHI

Reactor

BLU

CN07 WHI

RED

CN18

(RED)

CN21 WHI

RED

BLU

YEL

331

CN502

(BLU)

CN501

(RED)

3 4

53 41 2 5

3 4 5

WHI

BLK

BLU

3 4 3 4 5

CN03 CN02 CN01

Reactor

PTC Themistor

BLK WHI RED

–

313

GRY

RED

BLU YEL

RED

3 1 3 1

CN17 (BLK)

BLK

WHI

RED

CN20 WHI

RED

Mg-SW OCR

A1 A2

2-2. Outdoor Unit

Model: MMY-MAP0801FT8, MAP1001FT8, MAP1201FT8

Page 25

2-3. Flow Selector Unit (FS Unit)

Model: RBM-Y1121FE, Y1801FE

Flow Selector Unit

RBM-Y1801FE Only

SVSSVS SVSS

SVDCOM SVS

BLU

ORN

WHI

SVDD

YEL

SVD

SVSS

BRW

Earth Screw

CN01 (RED)

Control P.C. Board MCC-1431

CN02 (GRN)

CN10 (WHI)

312 321

Indoor Unit

Control P.C. Board for indoor unit

51234

CN81

45213

(BLK)

11 33

CN67 (BLK)

Power Supply Single Phase 220-240V 50Hz

S(N)R(L)

Indoor Unit Earth Screw

Page 26

3. PARTS RATING

3-1. Indoor Unit

4-way Air Discharge Cassette Type

Model MMU-AP 0091H 0121H 0151H 0181H 0241H 0271H 0301H

Fan motor SWF-230-60-1 Drain pump motor ADP-1409 Float switch FS-0218-102 TA sensor Lead wire length : 155mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red) Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B25YGTF EDM-B40YGTF Louver motor (panel) MP24GA

Model MMU-AP 0361H 0481H 0561H

Fan motor SWF-200-90-1 Drain pump motor ADP-1409 Float switch FS-0218-102 TA sensor Lead wire length : 155mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red) Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B60YGTF-1 Louver motor (panel) MP24GA

2-way Air Discharge Cassette Type

Model MMU-AP 0071WH 0091WH 0121WH 0151WH 0181WH

Fan motor AF-230-53-4G AF-230-39-4B Running condenser for fan motor AC 400V, 1µF A C 450V, 2µF Running capacitor for fan motor AC 400V, 1.0µF AC 450V, 2.0µF Drain pump motor PJD-05230TF-1 Float switch FS-0208-608 Control P.C. board transformer TT-13 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B25YGTF EDM-B40YGTF TA sensor Lead wire length : 268mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Model MMU-AP 0241WH 0271WH 0301WH 0481WH

Fan motor AF-200-53-4F AF-200-92-4B Running condenser for fan motor AC 450V, 2.5µF AC 450V, 3µF AC 450V, 5µF Running capacitor for fan motor AC 450V, 2.5µF AC 450V, 3.5µF AC 500V, 5µF Drain pump motor PJD-05230TF-1 Float switch FS-0208-608 Control P.C. board transformer TT-13 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B40YGTF EDM-B60YGTF-1 TA sensor Lead wire length : 268mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Page 27

1-way Air Discharge Cassette (Compact type) Type

Model MMU-AP 0071YH 0091YH 0121YH

Fan motor AF-200-22-4N-1 Running capacitor for fan motor AC 400V, 1µF Drain pump motor PJD-05230TF-1 Float switch FS-0208-602 Control P.C. board transformer TT-13 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B25YGTF TA sensor Lead wire length : 818mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Model MMU-AP 0151SH 0181SH 0241SH

Fan motor AF-200-34-4D Running capacitor for fan motor A C 450V, 1.5µF AC 500V, 2.5µF Drain pump motor PJD-05230TF-2 Float switch FS-0208-603 Control P.C. board transformer TT-13 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B40YGTF TA sensor Lead wire length : 155mm Vinyl tube TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Concealed Duct Standard Type

Model MMD-AP 0071BH 0091BH 0121BH 0151BH 0181BH

Fan motor ICF-280-120-2 Drain pump motor ADP-1409 Float switch FS-0218-102 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B25YGTF EDM-B40YGTF TA sensor Lead wire length : 618mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Model MMD-AP 0241BH 0271BH 0301BH 0361BH 0481BH 0561BH

Fan motor ICF-280-120-1 ICF-280-120-2 Drain pump motor ADP-1409 Float switch FS-0218-102 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B40YGTF EDM-B60YGTF-1 TA sensor Lead wire length : 618mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Page 28

Concealed Duct High Static Pressure Type

Model MMD-AP 0181H 0241H 0271H 0361H 0481H

Fan motor STF-200-160-4B STF-200-160-4A STF-200-260-4C STF-200-260-4B Running condenser for fan motor AC 500V, 4µ F AC 400V, 8µF AC 450V, 6µF AC 400V, 8µF Drain pump motor ADP-1409 Float switch FS-0218-102-6 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B40YGTF EDM-B60YGTF-1 TA sensor Lead wire length : 1200mm TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Under Ceiling Type

Model MMC-AP 0151H 0181H 0241H 0271H 0361H 0481H

Fan motor SWF-280-60-1 S WF-280-60-2 SWF-280-120-2 Driving motor for horizontal grille MP24GA1 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B40YGTF EDM-B60YGTF-1 TA sensor Lead wire length : 155mm Vinyl tube TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

High Wall Type

Model MMK-AP 0071H 0091H 0121H 0151H 0181H 0241H

Fan motor ICF-280-120-3 Driving motor for horizontal grille MT8-3-6 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B25YGTF EDM-B40YGTF TA sensor Lead wire length : 818mm Vinyl tube TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Page 29

Floor Standing Cabinet Type

Model MML-AP 0071H 0091H 0121H 0151H 0181H 0241H

Fan motor AF-200-19-4F AF-200-45-4F AF200-70-4K Running condenser for fan motor AC450V, 1.2µF AC400V, 1.8µF AC450V, 2µF Transformer TT13 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B25YGTF EDM-B40YGTF TA sensor Lead wire length : 818mm Vinyl tube TC1 sensor Ø4 size lead wire length : 1200mm Vinyl tube (Blue) TC2 sensor Ø6 size lead wire length : 1200mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Floor Standing Concealed Type

Model MML-AP 0071BH 0091BH 0121BH 0151BH 0181BH 0241BH

Fan motor AF-200-19-4G AF-200-70-4K Running condenser for fan motor AC450V, 1.5µF AC450V, 1µF AC450V, 2µF Transformer TT-13 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B25YGTF EDM-B40YGTF TA sensor Lead wire length : 818mm Vinyl tube

TC1 sensor

TC2 sensor Ø6 size lead wire length : 2000mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 2000mm Vinyl tube (Red)

Ø4 size lead wire length : 2000mm Vinyl tube (Blue)

Floor Standing Type

Model MMF-AP 0151H 0181H 0241H 0271H 0361H 0481H 0561H

Fan motor AF-200-37R AF-200-63T Running condenser for fan motor AC500V, 3µF AC500V, 3.5µF A C500V, 4µF Transformer TT-13 Pulse motor EDM-MD12TF-3 Pulse motor valve EDM-B40YGTF EDM-B60YGTF-1 Driving motor for vertical flap MT8-3-9

AF-200-110M-1

AF-200-160H-1

TA sensor Lead wire length : 1200mm Vinyl tube TC1 sensor

TC2 sensor Ø6 size lead wire length : 2000mm Vinyl tube (Black) TCJ sensor Ø6 size lead wire length : 1200mm Vinyl tube (Red)

Ø4 size lead wire length : 1200mm Vinyl tube (Blue)

Page 30

3-2. Outdoor Unit

Model MMY-

Compressor DA421A3FB-23M Output: : 3.7 5kW × 2 4-way valve coil (Heat pump only) LB64046 AC220-240V 50Hz Pulse motor valve coil VPV-MOAJ524C0 HAM-MD12TF-3 DC12V

2-way valve coil VPV

VPV-122DQ1 SV2, SV3C, SV3D, SV3E, SV6, SV12

2-way valve

High-pressure SW ACB-JB215 OFF : 3.73MPa, ON : 2.9MPa Pressure sensor (For high press ure) 150XA4-H3 0. 5 to 3.5V / 0 to 0.98MPa Pressure sensor (For low pressure) 150XA4-L1 0.5 to 4.3V / 0 to 3.73MPa Fan motor MF-230-600-2 DC280V, 600W Case heater AC240V, 29W × 3 Compressor ca se the rmo. US-622KXTMQO-SS OFF : 125°C, ON : 90°C × 2

VPV-303DQ1 SV3A, SV41, SV42, SV5 VPV-603DQ2 SV3B VPV-1204DQ50 SV11

MAP0801FT8 MAP1001FT8 MAP1201FT8

AC220–240V 50Hz SV2, SV3A, SV3B, SV3C, SV3D, SV3E

SV41, SV42, SV5, SV6, SV11, SV12

3-3. Outdoor Control Unit

Heat Recovery Model

Model MMY-

Power supply terminal block JXO-3004 AC600V / 30A, 4P Communication line t erminal block JXO-B2H AC30V (or DC42V) / 1A, 6P Reactor CH-44FK 1.45mH / 25A Smoothing condenser (For compressor) 400LRSN 1500M 1500µF / 400V Power supply transformer TT-01-03T AC230V, 350mA P.C. board (Noise filter) MCC-1366

Line filter (AC)

P.C. board (Control board) MCC-1429 P.C. board IPDU-4T62DA1E 6.2kW MC C-1502 P.C. board (Power supply board) MCC-1439 P.C. board (IPDU for fan) IPDU-2D16DA1 800W MCC-896, MCC-897 Power complex module 6MBR25UA120 25A/1200V (MCC-1502 P.C. board) Pipe temp. sensor (TD) —–30°C to 135°C (Ambient temp. range) Pipe temp. sensor (TS) —–20°C to 80°C (Ambient temp. range) Heat exchanger temp. sensor (TE ) —–20°C to 80°C (Ambient temp. range) Outside temp. sensor (TO) —–20°C to 80°C (Ambient temp. range) Oil temp. sensor (TK) —–30°C to 135°C (Ambient temp. range) Liquid temp. sensor (TL) —–20°C to 80°C (Ambient temp. range) Smoothing condenser (For fan) 400LRSN1000M 1000µF / 400V Magnet SW FC-2S 400V / 38A Thermistor ZPROYCE101A500 100Ω, 13A, 500V

MAP0801FT8 MAP1001FT8 MAP1201FT8

FKX-240NK-4810US 0.48mH / 30A (MCC-1366 P.C. board) FKX-220NK-6310US 0.63mH / 25A (MCC-1366 P.C. board)

3-4. Flow Selector Unit (FS Unit)

Model RBM-Y1121FE RBM-Y1801FE

P.C. board (Control board) MCC-1431 2-way valve coil VPV AC220-240V 50Hz

2-way valve

VPV-122DQ1 SVSS, SVDD VPV-1204DQ50 SVS, SVD

Page 31

TO sensor

TE sensor

3-5. Pa rts Layout in Outdoor Unit

SV42 valve

SV41 valve

High pressure SW1

TD1 sensor

High pressure SW2

TD2 sensor

Check joint (Low pressure)

SV3D valve

SV5 valve

TS1 sensor

SV12 valve

PMV

4-way valve

Check joint (High pressure)

High pressure sensor

Check joint (Liquid pipe)

TS2 sensor

SV2 valve

SV11 valve

SV6 valve

SV3A valve

SV3B valve

TL sensor

Low pressure sensor

SV3E valve

SV3C valve

TK1, TK2 sensor

TK3 sensor

TK4 sensor

Front side Rear side

Page 32

3-6. Name of Each Pa rt

Air outlet/Air outlet flap

Select air blow direction in cooling or heating operation each.

Earth screw

It is included in the electric parts box.

Air inlet grille

Air in the room is sucked from here.

Air filter

Removes dust and trash. (Air filter is provided in the air inlet grille.)

Air inlet

Suction duct is connected.

Air outlet

Discharge duct is connected.

Earth screw Drain pan

Earth screws are provided in the electric parts box.

Earth screw

It is included in the electric parts box.

Air outlet/

Air outlet flap

Select air blow direction in cooling or heating operation each.

Air inlet grille

Air in the room is sucked from here

Air filter

Remo ves dust and trash. (Air filter is pro vided in the air inlet grille.)

Air outlet flange

Discharge duct is connected.

Earth screw

It is included in the electric parts box.

Air filter

Removes dust and trash. (Air filter is provided in the air inlet grille.)

Air inlet

Air in the room is sucked from here

Wiress remote controller (Sold separately)

UNIT

SET

SETTING

UNIT No.

CODE No.

TEST

SET DATA

R.C. No.

3-6-1. Outdoor Unit

Air inlet

They are provided at front, rear, left, and right sides.

Fixing leg

3-6-2. Indoor Unit

[4-way Air Discharge Cassette Type]

Earth screw

It is included in the electric parts box.

Air outlet (Discharge)

Hot air is discharged when cooling operation is performed.

Cold air is diacharged when heating operation is performed.

Air outlet/Air outlet flap

Select air blow direction in cooling or heating operation each.

2-way discharge/3-way discharge

2-way discharge or 3-way discharge can be selected according to the shape or arrangement of the room. For details, consult with the dealer which you have purchased the air conditioner.

Power source hole Refrigerant pipe

connecting hole

Connecting valve is included inside here.

[1-way Air Discharge Cassette Type]

[Concealed Duct Type]

[Concealed Duct, High Static Pressure Type]

Clip

The clip is to open/close the air inlet grille.

[2-way Air Discharge Cassette Type]

Air outlet/Air outlet flap

Select air blow direction in cooling or heating operation each.

Earth screw

It is included in the electric parts box.

Center panel Air inlet

Air in the room is sucked from here.

Air filter

Removes dust and trash. (Air filter is provided in the air grille.)

Air inlet grille

Air in the room is sucked from here.

CODE No.

SET DATA

UNIT No.

SETTING

R.C. No.

TEST

Wiress remote controller

UNIT

SET

(Sold separately)

Air filter

Removes dust and trash. (Air filter is provided in the center panel.)

Page 33

SETTING

UNIT No.

CODE No.

TEST

SET DATA

R.C. No.

12 14

13 15

5 6

[Under Ceiling Type] [Floor Standing Cabinet Type]

Air inlet port

The air in the room is sucked in from this port.

Button

Button to open/close the suction port

Air filter

Removes dust or trash. (Provided on the suction port.)

Air outlet/Air outlet flap

Change the direction of the air to be discharged according to cool/heat mode.

Earth screw

Earth screws are provided in the electric parts box.

Air filter

Removes dirt or dust. (It is included in the suction port.)

Air outlet/Air outlet flap

Exchanges the air direction according to cooling or heating time.

[Floor Standing Concealed Type]

[High Wall T ype]

Air inlet grille

Air in the room is sucked from here.

Air filter

Removes dust and trash. (Air filter is provided in the air inlet grille.)

Earth screw

Earth screws are provided in the electric parts box.

Air outlet/Air outlet flap

Change the direction of the air to be discharged according to cool/heat mode.

Air outlet port

Earth screw

It is prepared in the electric parts box.

Air inlet port

Sucks air inside of the room from here.

Front panel (Lower side)

Drain pan (With drain filter)

This accessory is installed at the local site.

Air filter

Removes dirt or dust. (It is included in the suction port.)

[Floor Standing Type]

Horizontal flap/ Air outlet port

Exchanges the air

SET DATA

SETTING

CODE No.

UNIT No.

R.C. No.

TEST

Wiress remote controller

UNIT

SET

(Sold separately)

direction according to cooling or heating time.

Air inlet port

Sucks air inside of the room from here.

Air filter

Removes dirt or dust.

Earth screw

It is prepared in the electric parts box.

Drain pan

Water accumulated in the drain pan is drained from here through the drain pipe.

Earth screw

It is prepared in the electric parts box.

Air inlet port

Sucks air inside of the room from here.

Fixing metal holder

Vertical flap

The air can be automatically discharged rightward/leftward at stated periods.

Fixing metal holder (Right and left)

3-7. Parts Name of Remote Controller

Operation section

• Using a remote controller, maximum 8 indoor units can be operated.

• After the operation contents have been once set up, the remote controller can be operated by pushing ON/OFF buttons only.

Display section

In the display example, all indicators are displayed for the explanation. In reality only, the selected contents are indicated.

• When turning on the leak breaker at the first time, [SET DATA] flashes on the display part of the remote controller. While this display is flashing, the model is being automatically confirmed. Accordingly, wait for a while after [SET

DAT A] display has disappeared, and then use the remote controller.

SET DATA display

Displayed during setup of the timer.

Operation mode select display

The selected operation mode is displayed.

CHECK display

Displayed while the protective device works or a trouble occurs.

Timer time display

Time of the timer is displayed. (When a trouble occurs, the check code is displayed.)

Timer SETIN setup display

When pushing the Timer SETIN button, the display of the timer is selected in order of [OFF] [ON]

Filter display

If “FIL TER ” is displayed, clean the air filter.

TEST run display

Displayed during a test run.

Flap position display

Displays flap position.

SWING display

Displayed during up/down movement of the flap.

10 11

→ [OFF] repeat OFF timer →

→ No display.

Set up temperature display

The selected set up temp. is displayed.

Remote controller sensor display

Displayed while the sensor of the remote controller is used.

PRE-HEAT display

Displayed when the heating operation starts or defrost operation is carried out. While this indication is displayed, the indoor fan stops or the mode enters in LOW.

Operation ready display

Displayed when cooling operation is unavailable because heating operation is performed.

No function display

Displayed if there is no function even if the button is pushed.

Air volume select display

The selected air volume mode is displayed. (AUTO) (MED.) (LOW) In the Concealed Duct High Static Pressure type models, [HIGH] only is displayed for the air speed.

Mode select control display

Displayed when pushing “Operation mode select” button while the operation mode is fixed to heating or cooling by the system manager of the air conditioner.

Central control display

Displayed when using the remote controller together with the central control remote controller, etc. If Remote controller is prohibited at the centralcontrol side,

flashes when operating

the change is not accepted. (The contents available to be set up on the remote controller differ according to the central control mode. For details, refer to Owner’s Manual of the central control remote controller.)

, , / buttons and

SET DATA

SETTING

SET

(HIGH)

CODE No.

UNIT No.

R.C. No.

TEST

UNIT

Display section

Operation section

Page 34

UNIT

1 2

SET

HEAT DRYAUTO COOL FAN

(Dehumidity)

LOW MED. HIGH

AUTO

Operation section

Push each button to select a desired operation.

• The details of the operation needs to be set up once, afterward, the air conditioner can be used by pushing

2 4

Air volume select button

Selects the desired air volume mode.

Timer set button

TIMER SET button is used when the timer is set up.

Check button

The CHECK button is used for the chec k operation. During normal operation, do not use this button.

Fan button

F AN button is used when a fan which is sold on the market or etc. is connected.

• If “No function” is displayed on the remote controller when pushing the FAN button, a fan is not connected.

Filter reset button

Resets (Erases) “FILTER ” display.

UNIT and AUTO flap button

UNIT

Operation lamp

Lamp is lit during the operation. Lamp is off when stopped.

Although it flashes when operating the protection device or abnormal time.

button only.

3 5

Select a unit No. Swing automatically or manually

SET

UNIT

When the button is pushed, the operation starts, and it stops by pushing the button again.

When the operation has stopped, the operation lamp and all the displays disappear.

Operation select button

Selects desired operation mode.

Set up temperature button

Adjusts the room temperature. Set the desired set temperature by pushing

OPTION :

Remote controller sensor

Usually the TEMP. sensor of the indoor unit senses the temperature. The temperature on the surrounding of the remote controller can also be sensed. For details, contact the dealer from which you have purchased the air conditioner.

button

or .

3-8. Correct Usage

When you use the air conditioner for the first time or when you change the SET DATA value, follow the procedure below. From the next time, the operation displayed on the remote controller will start by pushing the

Preparation

Turn on the main power switch and/or the leakage breaker.

• When the power supply is turned on, a partition line is displayed on the display part of the remote controller. * After the power supply is turned on, the remote controller does not accept an operation for approx. 1 minute, but it

1 2

Stop

Push button.

The operation lamp goes off, and the operation stops.

button only.

is not a failure.

REQUIREMENT

• While using the air conditioner, operate it only with button without turning off the main power switch and the leak breaker.

Push button.

The operation lamp goes on, and the operation starts.

Select an operation mode with the “MODE” button.

One push of the button, and the display changes in the order shown on the right.

• In HEAT

air flow becomes LOW and the air volume decreases.

• In the defrost mode, the fan stops so that cool air is not discharged and PRE-DEF

•“Dry” function is not provided to Concealed Duct high Static Pressure type.

Select air volume with “FAN ” button.

One push of the button, and the display changes in the order shown on the right.

• When air volume is “AUTO

temperature and room temperature.

• In DRY

• In heating operation, if the room temperature is not heated sufficiently with VOLUME “LOW

select “MED. ” or “HIGH ” operation.

• The temperature which the temperature sensor detects is one near the air inlet of the indoor unit. Therefore it slightly differs from the room temperature according to the installation status. The setup value is a criterion of the room temperature. (Automatic air speed cannot be selected in FAN mode.)

• Air volume of function is not provided to “Concealed Duct High Static Pressure Type” but air speed “HIGH

Determine the set up temperature by pushing the “TEMP. ” or “TEMP. ” button.

mode, if the room temperature reaches to the set temperature, the outdoor unit stops and the

is displayed.

”, air volume differs according to the temperature difference between set

mode, “AUTO ” is displayed and the air volume is LOW.

” operation,

” only is displayed.

Page 35

UNIT

SET

3-9. Automatic Operation (A uto Changeo ver)

When you set the air conditioner in mode or switch over from AUTO operation because of some settings change, it will automatically select either cooling, heating, or fan only operation depending on the indoor temperature.

Start

Push this button to start the air conditioner.

Mode select button (MODE)

Select Auto.

Temperature button

Set the desired temperature.

• In case of cooling, start the operation after approx. 1 minute.

• In case of heating, the operation mode is selected in accordance with the room temperature and operation

• When you select the Auto mode, it is unnecessary to set the f an speed. The FAN speed display will show

• After the heating operation has stopped, FAN operation may continue for approx. 30 seconds.

• When the room temperature reaches the set temperature and the outdoor unit stops, the super low wind is

• If the Auto mode is uncomfortable, you can select the desired conditions manually.

When restarting the operation after stop

• When restarting the operation immediately after stop, the air conditioner does not operate for approx. 3 minutes to protect the machine.

Stop

Push button.

Push this button again to stop the air conditioner.

button

starts after approximately 3 to 5 minutes.

AUTO and the fan speed will be automatically controlled.

discharged and the air volume decreases excessively. During defrost operation, the fan stops so that cool air is not discharged and “PRE-HEAT

” is displayed.

NOTE

3-10. TIMER Operation

A type of timer operation can be selected from the following three types. OFF timer : The operation stops when the time of timer has reached the set time. Repeat OFF timer : Every time, the operation stops after the set time has passed. ON timer : The operation starts when the time of timer has reached the set time.

Timer operation

Push TIMER SET button.

• The timer display (type) changes for every push of the button.

• SET DATA and

Push to select “SET TIME”.

For every push of button, the set time increases in the unit of 0.5 hr (30 minutes). The maximum set time is 72.0 hr. For every push of The minimum set time is 0.5 hr.

Push SET button.

• SET DATA display disappears and display goes on. (When ON timer is activated, time is displayed, and after time of the timer has been up, displays other

than ON disappear.)

display flashes.

button, the set time decreases in the unit of 0.5 hr (30 minutes).

Cancel of timer operation

Push CL button.

• TIMER display disappears.

NOTICE

• When the operation stops after the timer reached the preset time, the Repeat OFF timer resumes the operation by pushing button and stops the operation after the time of the timer has reached the set time.

OFF

(OFF timer) (Repeat OFF timer)

OFF ON

No display

(ON timer)

Page 36

3-11. Re-Installation

DANGER

Ask the dealer or an installation professional to re-install the air conditioner to a new place or move it to another place and to observe the following items. If the air conditioner is inappropriately by installed by yourself, it may cause electric shock or fire.

Do not install the air conditioner in the following places

• Do not install the air conditioner in any place within 1 m from a T V, stereo, or radio set. If the unit is installed in such place, noise transmitted from the air conditioner affects the operation of these appliances.

• Do not install the air conditioner near a high frequency appliance (sewing machine or massager for business use, etc.), otherwise the air conditioner may malfunction.

• Do not install the air conditioner in a humid or oily place, or in a place where steam, soot, or corrosive gas is generated.

• Do not install the air conditioner in a salty place such as seaside area.

• Do not install the air conditioner in a place where a great deal of machine oil is used.

• Do not install the air conditioner in a place where it is usually exposed to strong wind such as in seaside area or on the roof or upper floor of a building.

• Do not install the air conditioner in a place where sulfureous gas generated such as in a spa.

• Do not install the air conditioner in a vessel or mobile crane. Be careful with noise or vibrations

• Do not install the air conditioner in a place where noise by outdoor unit or hot air from its air outlet annoys your neighbors.

• Install the air conditioner on a solid and stable foundation so that it prevents transmission of resonating,

operation noise and vibration.

• If one indoor unit is operating, some sound may be audible from other indoor units that are not operating.

3-12. Tr oub les and Causes

CAUTION

If any of the following conditions occur, turn off the main power supply switch and immediately contact the dealer :

• The operation lamps flash at short intervals (5 Hz) even though you have tried turning off the power

supply and turning on again after 2 or 3 minutes.

• Switch operation does not work properly.

• The main power fuse often blows out, or the circuit breaker is often activated.

• A foreign matter or water fall inside the air conditioner.

• Any other unusual conditions are observed.

3-13. Information

Confirmation before operation

• Turn on the power switch 12 hours before starting the operation.

• Check whether earth wire is cut off or disconnected.

• Check the air filter is connected to the indoor unit.

Heating capacity

• A heat pump system which absorbs heat from outside of the room and then discharges heat into the room is adopted for heating. If the outside temperature falls, the heating capacity decreases.

• When the outside temperature is too low, it is recommended to use this air conditioner together with other heating equipment.

Defrost during heating operation

• In heating operation, if there is frost on the outdoor unit, the operation changes automatically to the defrost operation (Approx. 2 to 10 minutes) to increase the heating efficiency.

• During defrost operation, the fan of the indoor unit stops.

3-minutes protection

• When restarting the operation just after the operation has been stopped or the main power switch has turned on, the outdoor unit does not work for approx. 3 minutes in order to protect the air conditioner.

Power failure

• If a power failure occurred during operation, all operations stop.

• When the power is returned after a power failure, the operation lamp notifies the power-ON by flashing operation lamp on the remote controller.

• When restarting the operation, push button again.

Fan rotation in stopped unit

• In heating operation even in the stopped indoor unit, the fan rotates once for several minutes per approx. an hour when the other indoor unit is operating to protect the air conditioner.

Protective device (High pressure switch)

This device stops automatically an operation when excessive force is applied on the air conditioner.

If the protective device works, the operation stops and the operation lamp flashes.

When the protective device works, the indication and the check code are displayed on the display section of the remote controller. In the following cases, the protective device may work.

In cooling operation

• The suction port or discharge port of the outdoor unit is closed.

• A strong wind continuously blows to the discharge port of the outdoor unit.

In heating operation

• Dust or waste adheres excessively to air filter of the indoor unit.

• The discharge port of the indoor unit is closed.

If the protective device works, turn off the main power switch, solve the cause, and then start the operation again.

Cooling/Heating operation of Multi system air conditioner

• Although each indoor unit can be individually controlled in the Multi system air conditioner, the cooling operation and the heating operation cannot be simultaneously performed in the multiple indoor units which are connected to an outdoor unit. If doing so, the indoor unit in cooling mode stops and “ operation part goes on. The indoor unit in heating mode continues operation. When the operation mode has been fixed to cooling or heating by the system manager of the air conditioner, an operation other than the setup mode cannot be performed.

If an operation other than the setup mode is performed, “ operation stops.

” at operation part goes on and the

” at

• When the outdoor temperature goes out of the operable range, cooling or heating operation may not be performed in order to protect the equipment. In this case, “

” goes on.

Characteristics of heating operation

• The wind is not out just after starting an operation. The hot wind starts to blow 3 to 5 minutes after (Time differs according to indoor/outdoor temperature.) the indoor heat exchanger has warmed up.

• During operation, the outdoor unit may stop if the outside temperature rises.

Characteristics of cooling/heating simultaneous operation

• If the outdoor temperature drops during operation, the fan of the outdoor unit may stop.

Page 37

3-14. Adjustment of Air Direction

UNIT

1, 2

SET

display

Unit No.

1-1

Unit No.

1-2

Unit No.

1-3

Unit No.

1-4

T o increase the cooling/heating efficiency, be sure to make proper use of the discharge flap for cooling or heating operation.

As the characteristics of air, cool air collects at lower levels, and hot air collects at higher levels.

Set the flap so that air blows out horizontally.

If cooling operation is performed with the flap blowing air downwards, the air outlet or surface of the flap will be wet with dew, and dewdrop may fall down.

[4-way Air Discharge Cassette Type]

In cooling operation

• Use the discharge flap with horizontal set point.

• When the air conditioner stops, the flap (adjustment plate of up/down air direction) directs downward automatically.

• When the heating operation is in “PRE-HEAT directs upward. The swinging starts after “PRE-HEAT remote controller even if the heating operation is in “PRE-HEAT

How to set up the air direction

Push during operation.

The air direction changes for ev ery push of the button.

In HEAT operation

Direct the flap (adjustment plate of up/down air

direction) downward. If directing at upward, hot air may not come to the foot.

In heating operation

• Use the discharge flap with downward set point.

” states, the flap (adjustment plate of up/down wind direction)

” status cleared, SWING is displayed on the

Initial setup

CAUTION

” status.

SET

2-way/3-way air discharge

2-way discharge or 3-way discharge can be selected according to the shape or arrangement of the room. For details, consult with the dealer which you have purchased the air conditioner.

NOTES

• If cooling operation is executed under condition of downward blowing, the cabinet or surface of the horizontal flap gets wet with dew and may drop .

• During heating operation under condition of horizontal blowing, unevenness of temperature may increase in the room.

• Never handle the horizontal flap directly with hands, otherwise a trouble is caused. Use the flap operation switch on the remote controller to change direction of the horizontal flap. The hori zontal flap does not stop even if pushing the horizontal flap. Adjusting the stop position, push the switch.

[2-way Air Discharge Cassette Type]

In cooling operation

Use the air outlet flap with horizontal set point.

UNIT

Setup of air direction and swinging

Heating operation

Use the air outlet flap with downward set point.

How to start swing

How to stop swing

4 Auto flap button

In COOL/DRY operation

Direct the flap (adjustment plate of up/down air direction) upward. If directing it downward, the dew may from on the surface of the air discharge port and may drop down.

Initial setup

1, 2, 3 4

In FAN operation

Initial setup

In all modes

Series of operation

Push , set the flap (adjustment plate of up/down air direction) direction to the lowest position, and then push

SWING is displayed and the up/down wind direction is automatically selected.

again.

Display when stopping the swing

Fan/Heat operation

Cool/Dry operation

Push SWING/WIND again while the flap is swing.

• The flap stops at a position when you push. After then, if pushing , the air direction descends from the highest position.

• In COOL/DRY operation, the flap does not stop as it directs downward. If stopping the flap as it directs downward during swing operation, it stops after moving to the 3

UNIT

• Push Then the indoor unit No. in a group control is displa yed.

For the displayed indoor unit, set up the air direction.

• If the unit No. is not displayed, all the indoor units are operated at the same time.

• Every pushing

to set up the air direction individually in each indoor unit.

UNIT

, the display is exchanged as follows:

UNIT

position from the highest position.

Unit No.

1-4

Unit No.

display

1-1

Unit No.

1-3

Unit No.

1-2

Push during operation.

• is displayed and the air direction is automatically exchanged upward/downward.

When a remote controller operates the multiple indoor units, an indoor unit is selected and air direction can be individually set up.

Push again during swinging of the flap.

• You can stop the flap at the desired position.

Auto flap button

• Push individually in each indoor unit. Then the indoor

unit No. in a group control is displayed. For the displayed indoor unit, set up the air direction.

• If the unit No. is not displayed, all the indoor units are operated at the same time.

• Every pushing changed as follows:

UNIT

to set up the air direction

, the display is ex-

UNIT

Page 38

[1-way Air Discharge Cassette Compact Type]

In this case, do not use the swing function.

[High Wall T ype] <Up/Down air direction adjustment>

In cooling operation

In cooling operation, use the air outlet flap with horizontal set point so that cool air diffuses the whole room.

In heating operation

In heating operation, use the air outlet flap with downward set point so that the hot air is spread to the floor.

When you change the blowout direction to left/right, direct the vertical grille inside of the air outlet flap to desired direction.

Refer to that of 2-way Air Discharge Cassette Type.

[Under Ceiling Type] <Up/Down air direction adjustment>

In cooling operation

In cooling operation, use the air outlet flap with horizontal set point so that cool air diffuses the whole room.

In heating operation

In heating operation, use the air outlet flap with downward set point so that the hot air is spread to the floor.

When you change the blowout direction to left/right, direct the vertical flap inside of the air outlet flap to desired direction.

[Concealed Duct Standard Type]

When using a air outlet port unit (sold separately), adjust the air direction as follows:

In cooling operation

In cooling operation, use the air outlet flap with horizontal set point so that cool air diffuses the whole room.

In heating operation

In heating operation, use the air outlet flap with downward set point so that the hot air is spread at the foot.

In cooling operation

In cooling operation, use the air outlet flap with horizontal set point so that cool air diffuses the whole room.

In heating operation

In heating operation, use the air outlet flap with downward set point so that the hot air is spread to the floor.

When you change the blowout direction to left/right, direct the vertical flap inside of the air outlet flap to desired direction.

[Floor Standing Cabinet Type]

In cooling operation

In cooling operation, use the air outlet flap with horizontal set point so that the cold air diffuses in whole room.

In heating operation (For Heat-pump model only)

In heating operation, use the air outlet flap with downward set point so that the hot air blows at the foot.

[Floor Standing Type] <Adjustment of air direction upward/downward>

In cooling operation

In cooling operation, move the flap with hands and use it with horizontal air outlet point so that the cold air diffuses in whole room.

In heating operation (For Heat-pump model only)

In heating operation, move the flap with hands and use the air outlet flap with downward set point so that the hot air blows at the foot.

Lift up the vertical flap lightly, direct it toward the desired direction, and lower it.

In this case, do not use the Swing function.

Page 39

CODE No.

1, 2

Suction grille

Button

3-15. Air Conditioner Operations and Performance

3 minutes protection function

3-minutes protection function prevents the air conditioner from starting for initial 3 minutes after the main power switch/circuit breaker is turned on for re-starting the air conditioner.

Power failure

Power failure during operation will stop the unit completely.

• To restart the operation, push the START/STOP button on the remote controller.

• Lightning or a wireless car telephone operating nearby may cause the unit to malfunction. Turn off the main power switch or circuit breaker and then turn them on again. Push the START/STOP button on the remote controller to restart.

Heating characteristics Preheating operation

The air conditioner will not deliver warm air immediately after it is turned on. Warm air will start to flow out after approximately 5 minutes when the indoor heat exchanger warmed up.

Warm air control (In heating operation)

When the room temperature reaches the set temperature, the fan speed is automatically reduced to prevent to blow cold draft. At this time, the outdoor unit will stop.

Defrosting operation

If the outdoor unit is frosted during the heating operation, defrosting starts automatically (for approximately 2 to 10 minutes) to maintain the heating capacity.

• The fans in both indoor and outdoor units will stop during the defrosting operation.

• During the defrosting operation, the defrosted water will be drained from the bottom plate of the outdoor unit.

Heating capacity

In the heating operation, the heat is absorbed from the outside and brought into the room. This way of heating is called heat pump system. When the outside temperature is too low, it is recommended to use another heating apparatus in combination with the air conditioner.

Attention to snowfall and freeze on the outdoor unit

• In snowy areas, the air inlet and air outlet of the outdoor unit are often covered with snow or frozen up. If snow or freeze on the outdoor unit is left as it is, it may cause machine failure or poor warming.

• In cold areas, pay attention to the drain hose so that it perfectly drains water without water remaining inside for freeze prevention. If water freezes in the drain hose or inside the outdoor unit, it may cause machine failure or poor warming.

Air conditioner operating conditions

For proper performance, operate the air conditioner under the following temperature conditions:

Cooling operation

Heating operation

If air conditioner is used outside of the above conditions, safety protection may work. * Do not use “Super HRM” for other than personal usage where the ambient temperature may go down below –5°C.

(For example, OA equipment/Electric device/Food/Animals and plants/Art object)

When outdoor temperature goes out of specified range, “ or ” mark is indicated on the Wired remote controller display and required operation will stop.

& ” : When heating operation. “ ” : When cooling operation.

“

Notice :

• This indication is not failure.

• When outdoor temperature goes back to specified range, “

• Operation stops because concurrent operation can not be kept in the condition of out of specification for Super

HRM. (Outdoor temp. (DB) < –5°C : Cooling, > 21°C : Heating)

Outdoor temperature : –5°C to 43°C (Dry-bulb temp.) Room temperature : 21°C to 32°C (Dry-bulb temp.), 15°C to 24°C (Wet-bulb temp.)

CAUTION

Outdoor temperature : –15°C to 15°C (Wet-bulb temp.) Room temperature : 15°C to 28°C (Dry-bulb temp.)

Room relative humidity – less than 80 %. If the air conditioner operates in excess of this figure, the surface of the air conditioner may cause dewing.

CAUTION

or ” disappear and star t nor mal operation.

3-16. Maintenance

For maintenance, be sure to turn off the main power switch.

WARNING

• Please do not intend to do the daily maintenannce and/or Air Filter cleaning by yourself.

Otherwise, you may contact with revolving fan or active electrity when you insert your hands into the unit during running of the air conditioners.

Do not handle the buttons with wet hands; otherwise an electric shock may be caused.

Cleaning of air filter

If is displayed on the remote controller, maintain the air filter.

Clogging of the air filter decreases cooling/ heating efficiency.

• After cleaning, push button. display disap-

pears.

[4-way Air Discharge Cassette Type]

• When using an elevator panel, move down the suction port with the elevator remote controller.

Open the suction port.

• Slide the clip of the suction port to inside and

open the suction port slowly while holding it.

Take out the air filter.

• Push the extrusion of the air filter to inside and

pull out it to take out the air filter.

Cleaning with water or vacuum cleaner

• If dirt is heavy, clean the air filter by tepid water

with neutral detergent or water.

• After cleaning with water, dry the air filter

sufficiently in a shade place.

Mount the air filter.

Close the suction port.

• Close the suction port, slide the clip outward,

and then fix it surely.

Push .

• display disappears.

Cleaning of oil guard filter

• Clean the oil guard filter once per 2 weeks.

• Clean the oil guard filter by tepid water with neutral detergent or water.

• After cleaning with water, rinse and dry the oil guard filter sufficiently in a shade place.

Information

• The oil guard filter does not surely collect oil soot though it has an excellent endurance against oil soot.

• The cleaning interval for the oil guard filter is calculated under environmental condition of oil soot density 3.5mg/m

Adjust cleaning interval according to conditions of adhered oil soot or dirt.

CAUTION

Strap to prevent falling

Air filter

Suction grille

Push

Button

Page 40

Cleaning of discharge louver

Pull out filter downward while holding the frames.

Inlet grille knob

Air filter

Inlet grille

Pull out inlet grille while pushing hook.

Inlet grille

Inlet grille fixing knob

Hinge

Slide

The air outlet flap can be removed to clean if necessary.

Remove the air outlet flap.

• Holding the both ends of the air outlet flap, remove it with sagging the center downward.

Clean the air outlet flap with water.

• If dirt is heavy , clean the air outlet flap by tepid water with neutral detergent or water.

Mount the air outlet flap.

• First push in the one side, and insert the opposite side with sagging the center downward.

Be careful to direction when mounting the louver.

Set the surface with printed mark upward, and mount the flap so that the arrow mark of the printed mark directs outward.

[2-way Air Discharge Cassette Type]

• Hold the center panel and pull it toward you and

pull down it slowly downward. (The center panel can move either leftward or rightward. Remove it after confirmation.)

• Take off the fall-preventing straps at the both sides.

• Pull down the air filter to take out it.

For AP0631, AP0481, and AP0561 types, hold

[ ]

the claw of the air filter and pull down it.

Insert in the flap sagging

Insert

[1-way Air Discharge Cassette Compact Type]

1. Push [PUSH] at the center and left/right of the suction port to open the suction port.

2. Take out the air filter by lifting up it once and then pull it downward.

REQUIREMENT

• Insert the air filter of 1-way Air Discharge Cassette

Compact Type surely into the specified position.

down the center downward.

[Concealed Duct Standard Type]

• Slide [Click] of the suction panel toward arrow direction and then open the panel downward. Turn the lever at the bottom side of the main unit to take out the air filter.

Clamp

Stepped screw

[Concealed Duct High Static Pressure Type]

• Cleaning method differs according to the mounted air filter type. For cleaning method, please contact the dealer .

• The cleaning method differs depending on the type of attached air filter . Please ask the constructor or the dealer which you purchased the air conditioner.

Cleaning of drain pan

• For cleaning of the drain pan, contact the dealer . (If the drain pan or drain port is clogged with dust, water

is disabled to drain. In some cases, water overflows from the drain pan and it may wet wall or floor. Be sure to clean the drain pan before the cooling season.)

[Under Ceiling Type]

Open the suction grille.

• Hold “knob” of the inlet grille, push it rearward (OPEN), and then open the inlet grille quietly while holding it.

Take out the air filter.

• Push knobs of the air filter to remove the claws of the inlet grille. Remove the air filter by pulling it toward you.

Suck dust by a vacuum cleaner or clean with water.

• When dirt is heavy , it is effective to clean the filter with tepid water with dissolved neutral detergent or cold water.

• After cleaning the filter with water, dry the filter completely in the shade.

Mount the air filter.

Close the inlet grille.

• Close the inlet grille, slide the “knob” toward you, and then fix it surely.

Push .

• display disappears.

CAUTION

After cleaning, be sure to attach the fall-preventing straps of the center panel; otherwise an injury is caused by falling.

Inlet grille knob

Air filter

Inlet grille

Page 41

[High Wall Type]

Air outlet Drain receiver (With strainer)

Air filter

Removes dirt or dust. (It is included in the inlet grille.)

Front panel (Lower side)

Air outlet / Air outlet flap

Air filter

Removes dirt or dust. (It is included in the inlet grille.)

Air inlet glille

I will wipe soft and dry cloth!

Do not use.

Polishing

powder

Benzene

Thinner

Chemical floor-cloth

Use after drying

when it has not been

used for a long time!

Wipe it with a dried soft cloth.

• If dirt of the main unit is not cleaned even if wiped with a dried soft cloth, wipe it completely squeezed cloth which was rinsed with tepid water below 40°C.

Air inlet grille

Air in the room is sucked from here.

[Floor Standing Cabinet Type]

Cleaning of the main unit/remote controller

• Wipe them with soft and dry cloth.

• If heavy dirt adheres to the main unit, wipe out it with a cloth dampened with tepid water. For the remote controller, use a dry cloth.

• If using a metal brush or hard sponge for maintenance of the front panel, the surface is scratched and coating of the front panel may be pealed.

• Use neutral detergent for kitchen to clean a heavy dirt and then rinse the grille or flap with water.

Suck dust by a vacuum cleaner or clean with water.

• After cleaning the filter with water, dry the filter completely in the shade.

[Floor Standing type]

Cleaning of drain pan

• For cleaning of the drain pan, contact the dealer . (If the drain pan or drain port is clogged with dust, water

is disabled to drain. In some cases, water overflo ws from the drain pan and it may wet wall or floor. Be sure to clean the drain pan before the cooling season.)

• Pull the air filter downward and take out tow ard you.

• Insert the air filter into the indoor unit and push in it.

Air outlet grille

Air filter

Removes dust and trash. (Air filter is provided in the air inlet grille.)

Air outlet flap

Attachment air filter

• Before you clean the air conditioner, be sure to turn off the circuit breaker or the main power switch.

• Clean the air filter every two weeks. If the air filter is clogged with dust, the performance of the air conditioner will deteriorate.

[Floor Standing Concealed Type]

• Do not use benzene, thinner, polishing powder, or similar solvents for cleaning. These may cause a crack or deformation.

• Operate the fan for half a day to dry inside of the main unit sufficiently.

• Turn off the main power switch.

• Clean the air filter and then remount it as before.

Suck dust by a vacuum cleaner or clean with water.

• When dirt is heavy, it is effective to clean the filter with tepid water with dissolved neutral detergent or cold water.

• After cleaning the filter with water, dry the filter completely in the shade.

• Clean the drain pan or the drain receiver. If the drain pan or the drain receiver is clogged with dust, water may overflow causing getting wet on the floor.

• Push down hook of the air filter on the front panel (Lower side)

• Pull the air filter toward you to remove it.

• This model is a concealed type. Therefore conceal other parts than the air outlet and the air filter.

Be sure not to touch the electric parts box, the surrounding lead wires, the refrigerant pipes, etc. directly with the hands.

Cleaning of drain pan and drain receiver (With strainer)

CAUTION

Clean the drain pan and the drain receiver (strainer)

If the drain pan or the drain receiver chokes with dust, water overflows or ceiling or floor gets wet.

REQUIREMENT

For cleaning of the drain pan or drain receiver, contact the dealer which you purchased the air conditioner.

Page 42

3-17. How to Use the Air Conditioner Efficiently

To save the charges for electricity and to gain comfortable cooling/heating operation

3-18. When the Following Symptoms are Found

Check the points described below before asking repair servicing.

Clean the air filter frequently

• If the air filter is clogged, cooling/heating efficiency decreases.

Do not cool/heat the room excessively

WARNING

Do not expose your body in cool air for a long time; otherwise it causes worse condition or health loss.

• It is unhealthy; especially take care of children or

aged persons.

• Recommended set temperature

Cool

26 to 28°C

Heat

22 to 24°C

Don’t forget

periodical

check!

Don’t cool

excessively!

Close window or door often

• Close window or door often so that cool/hot air does not out of the room.

Close windows

and doors often!

Evenness of room temperature

• Using a discharge louver, adjust air direction. Exposing yourself for a long time in blowing air

exerts a bad influence upon your health.

Symptom

Outdoor unit • White misty cold air

Indoor unit •“Swish” sound is

or water is out.

• Sometimes, noise “Pushu !” is heard.

heard sometimes.

• Slight “Pishi!” sound is heard.

• Discharge air smells.

•“

” indication is lit.

Check again.

• Sound or cool air is output from the stand by indoor unit.

• When power of the air conditioner is turned on, “Ticktock” sound is heard.

Operates or stops automatically. Does not operate.

Silent

Air is not cooled or warmed sufficiently.

It is not a failure.

It’s strange.

Cause

• Fan of the outdoor unit stops automatically and performs defrost operation.

• Solenoid valve works when defrost operation starts or finishes.

• When the operation has started, during the operation, or immediately after the operation has stopped, a sound such as water flows may be heard, and the operation sound may become larger for 2 or 3 minutes immediately after the operation has started. They are flowing sound of refrigerant or draining sound of dehumidifier.

• This is sound generated when heat exchanger, etc. expand and contract slightly due to change of temperature.

• Various smell such as one of wall, carpet, clothes, cigarette, or cosmetics adhere to the air conditioner.

• Do not the outdoor temperature go out of the specified range?

• When the manager of the air conditioner has fixed the operation to COOL or HEAT, and an operation contrary to the setup operation is performed.

• When fan operation stopped to prevent discharge of hot air.

• Since refrigerant is flowed temporarily to prevent stay of oil or refrigerant in the stand by indoor unit, sound of flowing refrigerant, “Kyururu” or “Shaa” may be heard or white steam when other indoor unit operates in HEAT mode, and cold air in COOL mode may be blow-out.

• Sound is generated when the expansion valve operates when power has been turned on.

• Is the timer “ON” or “OFF”?

• Is it a power failure?

• Is the power switch turned off?

• Is the power fuse or breaker blown?

• Has the protective device operated? (The operation lamp goes on.)

• Is the timer “ON”? (The operation lamp goes on.)

• Do not the outdoor temperature go out of the specified range?

• Is the suction port or discharge por t of the outdoor unit obstr ucted?

• Are any door or window open?

• Is the air filter clogged with dust?

• Is discharge louver of the indoor unit set at appropriate position?

• Is air selection set to “LOW” “MED”, and is the operation mode set to “FAN”?

• Is the setup temp. the appropriate temperature?

• Do not the outdoor temperature go out of the specified range?

When the following symptoms are found, stop the operation immediately, turn off the power switch, and contact the dealer which you have purchased the air conditioner.

• Activation of switch is unstabl e.

• Fuse or breaker is blown periodically.

• Foreign matters or water entered by mistake.

• When if activation cause of the protective device has been removed, the operation is not performed.

• Other unusual status occurred.

Page 43

4. REFRIGERANT PIPING SYSTEMATIC DRA WING

4-1. In verter Unit (8, 10, 12HP)

Model: MMY-MAP0801FE, MAP1001FE, MAP1201FE

Propeller fan

Fan motor

Sensor (TE1)

Strainer

(Right side)

Main heat exchanger

Sensor

(TO)

Pulse motor valve

(PMV1) (PMV2)

Check

Strainer

valve

Sensor

(TL)

Liquid

tank

Check joint

Solenoid valve

(SV12)

(PMV3)

Solenoid valve (SV5)

Solenoid valve (SV6)

Strainer

Check

valve

Capillary tube

Solenoid valve

(SV3D)

Solenoid valve (SV41)

Capillary tube

(Left side)

Main heat exchanger

Sub heat exchanger (Right side)

Sub heat exchanger (Left side)

Solenoid valve (SV11)

High-pressure

Check

sensor

Check joint

Strainer

Oil

separator

Strainer

Capillary tube

Check

valve

High-

pressure

switch

Sensor (TD1)

Capillary

tube

Sensor (TK3)

Strainer Strainer

Check

(Inverter)

valve

Compressor 1

Capillary

tube

Sensor (TK1)

Solenoid valve (SV3E)

Sensor (TK4)

valve

Solenoid valve

Solenoid valve (SV3C)

Capillary

Oil tank

(SV2)

Check

valve

Check valve

tube

Sensor (TK2)

4-Way valve

Capillary

tube

Capillary tube

Solenoid valve

(SV42)

Highpressure

switch Sensor (TD2)

(Inverter)

Compressor 2

Capillary tube

Sensor

(TS1)

Sensor

(TS2)

Accumulator

Lowpressure sensor

Check joint

Strainer Strainer

Service

Service valve of balance pipe

valve at liquid side

valve at

discharge

gas side

Service valve at suction gas side

Strainer

Solenoid valve (SV3A)

Check

valve

Solenoid valve (SV3B)

Check

valve

Page 44

4-2. Explanation of Functional Pa rts







Functional part name Functional outline

Solenoid valve

4-way valve

Pulse motor valve

Oil separator

Temp . sensor

SV3A

SV3B

SV3C

SV3D

SV3E

SV2

SV4 (n)

SV5

SV6 SV11

SV12

PMV1, 2

PMV3

TD1, TD2

TS1

TS2

TK1, TK2, TK3, TK4,

TO (Connect or CN50 7 : Y ell o w)

(Connector CN32 4 : Red)

1) Collects oil in the oil tank during OFF time.

2) Supplies oil reserved in the oil tank during ON time. (Connector CN 313 : Blue)

1) Returns oil supplied in the balance pipe to the compressor. (Connector CN314: Black)

1) Pressurizes oil reserved in the oil tank during ON time. (Connector CN 323 : Whi te)

1) Reserves oil in the oil separator during OFF time, and supplies oil during ON time. (Connector CN 323 : Whi te)

1) Turns on during operation and balances oil between compressors. (Hot gas bypass) (Connector CN312: White)

1) Low pressure release function

2) High pressure release function

3) Gas balance function during stop time (Start compensation valve of compressor) (Connector CN311: Blue)

1) For gas balance start

2) High pressure release function

3) Low pressure release function (Connector CN 310 : Whi te)

1) Increase of No. of heating indoor units, Gas balance function in defrost time

2) Low-pressure balance function of discharge gas pipe during all cooling operation (Connector CN 309 : Whi te)

1) Liquid bypass function for discharge temp. release (Cooling bypass circuit) (Connector CN 322 : Whi te)

1) For shutdown discharge gas (During all cooling operation and defrost operation) (Connector CN 319 : Whi te)

1) Flow-rate control function of refrigerant to sub heat exchanger during simultaneous operation

2) Flow-rate control function of refrigerant to sub heat exchanger during defrost operation (Connector CN 317 : Blue)

1) Cooling/Heating selection

2) Reverse defrost

3) Main-/Sub-heat exchanger selection (Connector CN300, 301: White)

1) Super heat control function during all heating operation and mainly heating, partly cooling operation

2) Under-cool adjustment function during all cooling operation

3) Divided flow control function during mainly cooling, partly heating operation (Connector CN30 2 : Red)

1) For flow-rate control of sub heat exchanger during simultaneous operation (Control function of heating divided flow)

2) A function preventive high pressure up during all cooling or all heating operation

1) Prev e ntion f o r early dr op o f oil l e v e l ( Decreas e of flow- ou t of disch arg e oil to cycle )

2) Reserve function of surplus oil

(TD1: Connector CN502: White, TD2: Connector CN503: Pink)

1) Protection of compressor discharge temp.

2) Releasing of discharge temp.

(Connector CN 504 : Whi te)

1) Controls super heat of PMV1 and 2 during all heating operation and simultaneous operation

(Connector CN522: Black)

1) Controls indoor oil recovery during all cooling operation and mainly cooling, partly heating operation

2) Detects overheat of cycle.

(Connector CN505: Green)

1) Controls defrost during all heating operation and simultaneous operation.

2) Controls outdoor fan during all heating operation and simultaneous operation. TK1: Connector CN514: Black, TK2: Connector CN515: Green,

TK3: Connector CN516: Red, TK4: Connector CN523: Yellow

1) Judges oil level of compressor.

(Connector CN 521 : Whi te)

1) Detects under-cool during all cooling operation and simultaneous operation.

1) Detects outside temperature.

  

For details of operation mode , refer to page 9.

Page 45

Functional part name Functional outline

Pressure sensor

Heater

Balance pipe 1) Oil balancing in each outdoor unit (This unit does not use this Balance pipe.)

High pressure sensor

Low pressure sensor

Compressor case heater

Accumulator case heate r

(Connector CN501: Red)

1) Detects high pressure and uses it to control capacity of compressor.

2) D etects h igh pressu re during all cooling operation and uses it to contro l f an w hen cooling w ith low outside air.

3) Detects under-cool of the indoor unit of which heating thermo.-ON during all heating operation and simultaneous opera tion.

4) Controls outdoor fan rpm during mainly cooling, part heating operation.

(Connector CN500: Wh ite)

1) Detects low pressure and uses it to control capacity of compressor during all cooling operation and simultaneous opera tion

2) Detects low pressure and uses it to controls super heat during all heating operation and simultaneous oper ation

(Compressor 1 Connector CN316: White, Compressor 2 Connector CN315: Blue)

1) Prevents liquid accumulation to compressor

(Connector CN321: Red)

1) Prev ents liquid accumulation to accumulator

Operation mode Outline

1. All Indoor Unit(s) Operating for Cooling

2. All Indoor Unit(s) Operating for Heating

Only cooling operation without heating operation Outdoor heat exchanger (Main heat exchanger) is used as condenser.

Only heating operation without cooling operation Outdoor heat exchanger (Main heat exchanger) is used as evaporator.

3. Simultaneous operation MIU for simultaneous operation 3-1. Mainly cooling, partly

heating operation

3-2. Mainly heating, partly

cooling operation

4. Defrost

Cooling/ he at ing sim ul tan eou s oper at io n with sub je ct iv e co o ling oper at io n Outdoor heat exchanger (Sub heat exchanger) is used as condenser.

Cooling /he at ing sim u lta neo us oper ati on w ith sub je cti v e h eat ing operation Outdoor heat exchanger (Main heat exchanger) is used as evaporator.

Using reversing operation of 4-way valve, ice of the outdoor heat exchanger is dissolved with single cooling cycle.

Page 46

Configuration of outdoor unit heat exchanger

Propeller fan

Fan motor

Main heat exchanger

Wind

Sub heat

exchanger

Front side (Right) Rear side (Left)

Flow Selector Unit (FS Unit)

RBM-Y1121FE RBM-Y1801FE

Discharge

Strainer

SVD

gas pipe

SVDD

Capillary

tube

Capillary

tube

SVSS

Liquid pipe

Capillary

tube

Check

valve

Strainer

Suction

gas pipe

SVS

Wind

Sub heat exchanger

* RBM-Y1801FE has two “SVS” valves.

Discharge

Strainer

SVD

gas pipe

SVDD

Capillary

tube

Capillary

tube

SVSS

Liquid pipe

Capillary

tube

Check

valve

Strainer

Suction gas pipe

SVS SVS

To indoor

liquid side

Functional part name

Solenoid valve SVD

SVS

SVDD

SVSS

Strainer

To indoor

gas side

To indoor

liquid side

Strainer

To indoor

gas side

Functional outline

(Discharge gas block valve)

1) High pressure gas circuit during heating operation

(Suction gas block valve)

1) Low pressure gas circuit during cooling operation

(Pressure valve)

1) For pressurizing when No. of heating indoor units increases.

(Reducing valve)

1) For recovery of refrigerant of the stopped indoor unit of which cooling ther mo-OFF

2) For reducing pressure when No. of heating indoor units decreases.

Page 47

4-3. Indoor Unit

Gas sideLiquid side

Strainer

Capillary tube

Air heat exchanger

at indoor side

Pulse Motor

Valve (PMV)

Strainer

Sensor

(TCJ)

Fan

(TC2)

Sensor

(TA)

Fan motor

(NOTE) MMU-AP0071YH to AP0121YH type air conditioners ha ve no TC2 sensor.

Functional part name

Pulse Motor Valve PMV

Temp. sensor 1. TA

2. TC1

3. TC2

4. TCJ

(Connector CN082 (6P): Blue)

1) Controls super heat in cooling operation

2) Controls under cool in heating operation

3) Recovers refrigerant oil in cooling operation

4) Recovers refrigerant oil in heating operation

(Connector CN104 (2P): Yellow)

1) Detects indoor suction temperature

(Connector CN100 (3P): Brown)

1) Controls PMV super heat in cooling operation

(Connector CN101 (2P): Black)

1) Controls PMV under cool in heating operation

(Connector CN102 (2P): Red)

1) Controls PMV super heat in cooling operation

2) [MMU-AP0071 to AP0121YH only] Controls PMV under cool in heating operation

Functional outline

Sensor

(TC1)

Page 48

5. SYSTEM REFRIGERANT CYCLE DRAWING

5-1. Refrigerant Piping Systematic Diagram in System

For the selection of each operation mode, see the table below: “Stop Once” means the system does not operate f or 3 minutes after operation before update has stopped.

After update

cooling, partl

Before update

All cooling operation

(OFF)

Mainly cooling,

partly heating

cooperation (ON)

Mainly heating,

partly cooling

operation (ON)

All heating operation

(ON)

All cooling operation

(OFF)

Operation continues

(ON à OFF)

Stop Once

(ON à OFF)

Stop Once

(ON à OFF)

Mainl

heating cooperation

(ON)

Operation continues

(OFF à ON)

Operation continues

(As ON)

Operation continues

(As ON)

Mainl

Note) Phrases in parentheses in the table indicate status of 4-way valve.

<ON-OFF list of Flow Selector Unit (FS Unit) valve>

Outline of control valve output of FS unit (Basic operation)

heating, partl

cooling operation

(ON)

Operation continues

(OFF à ON)

Operation continues

(As ON)

Operation continues

(As ON)

All heating operation

(ON)

Stop Once

(OFF à ON)

Operation continues

(As ON)

Operation continues

(As ON)

Indoor operation mode

1. Stop (Remote controller OFF) <All system stop>

2. Cooling thermo-OFF OFF OFF OFF ON

3. Cooling thermo-ON OFF OFF ON ON

4. Heating thermo-OFF

5. Heating thermo-ON

6. “E04” error is being detected OFF ON OFF OFF

SVD

(High pressure

circuit valve)

OFF

<OFF>

ON OFF OFF OFF

SVDD

(Pressure valve

<For delay>)

OFF

<OFF>

SVS

(Low pressure

circuit valve)

OFF

<OFF>

SVSS

(Reducing valve

<For delay>)

<OFF>

Page 49

5-2. All cooling operation (Operation of cooling only)

[In high outside temperature (15°C or more: Criterion)]

TE1

Main heat exchanger

Sensor

(TO)

Outdoor unit

Operating for condenser

PMV1 PMV2

Liquid

tank

SV12

(PMV3)

SV6

SV5

Main heat exchanger

SV11

Pd sensor

SV3D

SV41

TD1

(Inverter)

Compressor 1

SV3E

SV3A

OFF

4-Way valve

TS1

Pd sensor

TS2

SV2

SV42

HPHP

SV3B

Suction gas pipe Discharge gas pipe

Accumulator

Liquid pipe

SV3C

Oil tank

TK2

TD2

(Inverter)

Compressor 2

TK3

TK1

TK4

High pressure gas or condensed liquid refrigerant Low pressure gas refrigerant Low pressure gas refrigerant (Refrigerant recovery line) High pressure refrigerant (Push-in circuit)

FS unit

Indoor unit

PMV

TC2

TCJ

SVD

SVDD SVSS

Cooling

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

STST

Cooling

SVS

TC1

PMV

TC2

TCJ

SVD

SVDD SVSS

Cooling

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

Outdoor unit Flow selector/Indoor u n it

4-way va lv e OFF SV3A OFF

SV4 (n) (Note 1) SV3B OFF SVD OFF SVD OFF

SV5 OFF SV3C OFF SVS ON SVS OFF

SV6 Control SV3D Control SVDD OFF SVDD OFF SV11 ON SV3E ON SVSS ON SVSS ON SV12 OFF PMV1, 2 Control PMV Control PMV Close

Outdoor fan Control PMV3 Close

(Note 1) SV4 of the stopped compressor is ON.

SVS

STST

TC1

Stop

Page 50

[In low outside temperature (15°C or less: Criterion)]

TE1

Main heat exchanger

Sensor

(TO)

Outdoor unit

Operating for condenser

PMV1 PMV2

Liquid

tank

SV12

(PMV3)

SV6

SV5

Main heat exchanger

SV11

Pd sensor

SV3D

SV41

TD1

(Inverter)

Compressor 1

SV3E

SV3A

OFF

4-Way valve

TS1

Pd sensor

TS2

SV2

SV42

HPHP

SV3B

Suction gas pipe Discharge gas pipe

Accumulator

Liquid pipe

SV3C

Oil tank

TK2

TD2

(Inverter)

Compressor 2

TK3

TK1

TK4

High pressure gas or condensed liquid refrigerant Low pressure gas refrigerant Low pressure gas refrigerant (Refrigerant recovery line) High pressure refrigerant (Push-in circuit)

FS unit

Indoor unit

PMV

TC2

TCJ

SVD

SVDD SVSS

Cooling

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

STST

Cooling

SVS

TC1

PMV

TC2

TCJ

SVD

SVDD SVSS

Cooling

SVS

SVD

STST

PMV

TC1

TC2

TCJ

Outdoor unit Flow selector/Indoor unit

4-way valve OFF SV3A OFF

SV4 (n) (Note 1) SV3B OFF SVD OFF SVD OFF

SV5 ON SV3C OFF SVS ON SVS OFF

SV6 Control SV3D Control SVDD OFF SVDD OFF SV11 OFF SV3E ON SVSS ON SVSS ON SV12 OFF PMV1, 2 Control PMV Control PMV Close

Outdoor fan Control PMV3 Close

(Note 1) SV4 of the stopped compressor is ON.

SVS

SVDD SVSS

STST

TC1

Stop

Page 51

5-3. All heating operation (Operation of heating only)

TE1

Main heat exchanger

Sensor

(TO)

Outdoor unit

Operating for evaporator

PMV1 PMV2

Liquid

tank

SV12

(PMV3)

SV6

SV5

Main heat exchanger

SV11

Pd sensor

SV3D

SV41

TD1

(Inverter)

Compressor 1

SV3E

SV3A

4-Way valve

OFF

TS1

Pd sensor

TS2

SV2

SV42

HPHP

SV3B

Suction gas pipe Discharge gas pipe

Accumulator

Liquid pipe

SV3C

Oil tank

TK2

TD2

(Inverter)

Compressor 2

TK3

TK1

TK4

High pressure gas or condensed liquid refrigerant Low pressure gas refrigerant Low pressure gas refrigerant (Refrigerant recovery line) High pressure refrigerant (Push-in circuit)

FS unit

Indoor unit

PMV

TC2

TCJ

SVD

SVDD SVSS

Heating

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

STST

Heating

SVS

TC1

PMV

TC2

TCJ

SVD

SVDD SVSS

Heating

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

Outdoor unit Flow selector/Indoor unit

4-way valve OFF SV3A OFF

SV4 (n) (Note 1) SV3B ON SVD ON SVD ON SVD OFF

SV5 OFF SV3C OFF SVS OFF SVS OFF SVS OFF

SV6 Control SV3D Control SVDD OFF SVDD OFF SVDD OFF SV11 ON SV3E ON SVSS OFF SVSS OFF SVSS ON SV12 OFF PMV1, 2 Control PMV C ontro l PMV Close PMV Close

Outdoor fan Control PMV3 Close

(Note 1) SV4 of the stopped compressor is ON.

SVS

STST

TC1

Stop

Page 52

5-4. Mainly Cooling, Partly Heating Operation

(Cooling/heating simultaneous operation with subjective cooling operation)

TE1

Main heat exchanger

Sensor

(TO)

Outdoor unit

PMV1 PMV2

Liquid

tank

SV12

(PMV3)

Main heat exchanger

Operating

for condenser

SV11

SV5

SV3D

Pd sensor

SV41

TD1

SV3E

TK3

(Inverter)

Compressor 1

TK1

TK4

SV3A

SV6

SV3C

Oil tank

TK2

4-Way valve

SV2

TD2

(Inverter)

Compressor 2

SV42

HPHP

SV3B

Suction gas pipe Discharge gas pipe

TS1

TS2

Pd sensor

Accumulator

Liquid pipe

High pressure gas or condensed liquid refrigerant Low pressure gas refrigerant Low pressure gas refrigerant (Refrigerant recovery line) High pressure refrigerant (Push-in circuit)

FS unit

Indoor unit

PMV

TC2

TCJ

SVD

SVDD SVSS

Cooling

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

STST

Cooling

SVS

TC1

PMV

TC2

TCJ

SVD

SVDD SVSS

Stop

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

Outdoor unit Flow selector/Indoor unit

4-way valve ON SV3A OFF

SV4 (n) (Note 1) SV3B OFF SVD OFF SVD ON SVD OFF

SV5 OFF SV3C OFF SVS ON SVS OFF SVS OFF

SV6 Control SV3D Control SVDD OFF SVDD OFF SVDD OFF SV11 ON SV3E ON SVSS ON SVSS OFF SVSS ON SV12 Control PMV1, 2 Close (Note 2) PMV Control PMV Control PMV Close

Outdoor fan Control PMV3 Control

(Note 1) SV4 of the stopped compressor is ON. (Note 2) May be controlled.

SVS

STST

TC1

Heating

Page 53

5-5. Mainly Heating, Partly Cooling Operation

(Cooling/heating simultaneous operation with subjective heating operation)

TE1

Main heat exchanger

Sensor

(TO)

Outdoor unit

Operating for evaporator

PMV1 PMV2

Liquid

tank

SV12

(PMV3)

SV5

SV6

Main heat exchanger

SV11

Pd sensor

SV3D

SV41

TD1

(Inverter)

Compressor 1

SV3E

SV3A

4-Way valve

TS1

Pd sensor

TS2

SV2

SV42

HPHP

SV3B

Suction gas pipe Discharge gas pipe

Accumulator

Liquid pipe

SV3C

Oil tank

TK2

TD2

(Inverter)

Compressor 2

TK3

TK1

TK4

High pressure gas or condensed liquid refrigerant Low pressure gas refrigerant Low pressure gas refrigerant (Refrigerant recovery line) High pressure refrigerant (Push-in circuit)

FS unit

Indoor unit

PMV

TC2

TCJ

SVD

SVDD SVSS

Heating

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

STST

Heating

SVS

TC1

PMV

TC2

TCJ

SVD

SVDD SVSS

Stop

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

Outdoor unit Flow selector/Indoor u n it

4-way valve ON SV3A OFF

SV4 (n) (Note 1) SV3B OFF SVD OFF SVD ON SVD OFF

SV5 OFF SV3C OFF SVS ON SVS OFF SVS OFF

SV6 Control SV3D Control SVDD OFF SVDD OFF SVDD OFF SV11 ON SV3E ON SVSS ON SVSS OFF SVSS ON SV12 Close (Note 2) PMV1, 2 Control PMV Control PMV Control PMV Close

Outdoor fan Control PMV3 Close (Note 2)

(Note 1) SV4 of the stopped compressor is ON. (Note 2) May be controlled.

SVS

STST

TC1

Cooling

Page 54

5-6. Defrost

TE1

Main heat exchanger

Sensor

(TO)

Outdoor unit

PMV1 PMV2

Liquid

tank

SV12

(PMV3)

Main heat exchanger

OFF

4-Way valve

SV11

SV5

SV3D

Pd sensor

SV41

TD1

SV3E

TK3

(Inverter)

Compressor 1

TK1

TK4

SV3A

Oil tank

SV3C

TK2

SV2

TD2

(Inverter)

Compressor 2

SV42

HPHP

SV3B

SV6

TS1

sensor

TS2

Accumulator

Suction gas pipe Discharge gas pipe

Liquid pipe

High pressure gas or condensed liquid refrigerant Low pressure gas refrigerant Low pressure gas refrigerant (Refrigerant recovery line)

FS unit

Indoor unit

PMV

TC2

TCJ

SVD

SVDD SVSS

Cooling indoor

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

STST

Heating indoor

SVS

TC1

PMV

TC2

TCJ

SVD

SVDD SVSS

Heating indoor

SVS

SVD

SVDD SVSS

STST

PMV

TC1

TC2

TCJ

Stopped indoor

Defrost operation is carried out during all heating operation or Mainly heating, part cooling operation.

Outdoor unit Flow selector/Indoor unit

4-way valve OFF SV3A OFF

SV4 (n) (Note 1) SV3B OFF SVD OFF SVD OFF

SV5 ON SV3C OFF SVS ON SVS ON

SV6 Control SV3D Control SVDD OFF SVDD OFF SV11 OFF SV3E ON SVSS ON SVSS ON SV12 Close PMV1, 2 Control PMV Control PMV Control

Outdoor fan Stop (Note 2) PMV3 Control Fan Control Fan Stop

SVS

STST

TC1

(Note 1) SV4 of the stopped compressor is ON. (Note 2) May be controlled.

Page 55

6. CONTROL OUTLINE

6-1. Indoor Unit

6-1-1. Control Specifications

No.

2 Operation

Item

Power supply is reset.

select

Outline of specifications

(1) Distinction of outdoor unit

When the power supply is reset, the outdoor units are distinguished, and control is exchanged according to the distinctive results.

(2) Check code clear

When the power supply is reset, the check code is also reset once. If an abnormal status which the check code appears after Start/Stop button of the remote controller has been pushed continues, the check code is displayed again on the remote controller.

(1) Based upon the operation select command from the remote

controller or central controller, the operation mode is selected.

Remote controller

command

STOP

FAN

COOL

DRY

HEAT

COOL/HEAT AUTO

Heating operation is automatically selected with difference between setup temperature and room temperature.

Control outline

Stops air conditioner.

Fan operation

Cooling operation

Dry operation ∗

Heating operation

COOL/HEAT AUTO operation

Remarks

∗ Concealed Duct High

Static Pressure type air conditioner cannot operate for drying.

3 Room temp.

control

4 Automatic

capacity control

Air volume

5 HH > H+ > H >

control

(1) Adjustment range Set temperature on remote controller (°C)

Allcooling

Wired type Wireless type

(2) From the item code 06, the setup temperature in heating

operation can be corrected.

Setup data Setup temp. correction

Setup at shipment

Setup data 2

(1) Based upon difference between Ta and Ts, the operation

frequency is indicated to the outdoor unit.

(1) By the command from the remote controller, “HIGH (HH)”,

“MED (H)”, or “LOW (L)” “AUTO” operation is executed.

(2) While air speed is in AUTO mode, the air speed is changed

according to the difference between Ta and Ts.

18 to 29°C 18 to 30°C

0246

+0°C+2°C+4°C+6°C

All heating

18 to 29°C 16 to 30°C

Heating suction temperature shift

L+ > L > LL

Page 56

No.

Item

Outline of specifications

Remarks

Prevention of cold air discharge

7 Freeze

prevention control (Low temp. release)

(1) In all heating operation, the upper limit of the fan tap is set by

one with higher temperature of TC2 sensor and TCJ sensor.

• When B zone has continued for 6 minutes, the operation shifts to C zone.

• In defrost time, the control point is set to +6°C.

(˚C)

32 30 28 26

D C

A zone: OFF B zone:

Over 26˚C, below 28˚C, LOW C zone:

Over 28˚C, below 30˚C, MED D zone:

Over 30˚C, below 32˚C, HIGH E zone: Ultra HIGH

20 16

B A

(1) In all cooling operation, the air conditioner operates as de-

scribed below based upon temp. detected by TC1, TC2 and TCJ sensors.

To prevent the heat exchanger from freezing, the operation stops.

• When “J” zone is detected for 5 minutes, the command frequency becomes “S0” to the outdoor unit.

• In “K” zone, the timer count is interrupted, and held.

• When “1 ” zone is detected, the timer is cleared and the

operation returns to the normal operation.

• When the command frequency became S0 with continuation of “J” zone, operation of the the indoor fan in LOW mode until it reaches the “1 ” zone.

It is reset when the following conditions are satisfied.

• In D and E zones, priority is given to remote controller air speed setup.

• In A and B zones, “

” is

displayed.

Reset conditions

1) TC1

12°C and TC2 > 12°C and TCJ > 12°C

2) 30 minutes passed after stop.

TC1

10°C (5°C)

0°C

(˚C)

P1 Q1

(2) In all cooling operation, the air conditioner operates as

described below based upon temp. detected by TC2 and TCJ sensors.

• When “M” zone is detected for 45 minutes, the command frequency becomes “S0” to the outdoor unit.

• In “N” zone, the timer count is interrupted and held.

• When shifting to “M” zone again, the timer count restarts

and continues.

• If “L” zone is detected, the timer is cleared and the opera- tion returns to normal operation.

Reset conditions

1) TC1

12°C and TC2 > 12°C and TCJ > 12°C

2) 30 minutes passed after stop.

(˚C)

P2 Q2

TC2, TCJ

5°C

–2.0°C

∗ In a Model without TC2,

TC2 is not judged.

Page 57

No.

Item

Outline of specifications

Remarks

Recovery control for cooling refrigerant and oil

Recovery control for heating refrigerant and oil

Short inter mittent operation compensation control

(1) The indoor unit which stops operation, thermostat is OFF,

or operates in FAN mode opens PMV of the indoor unit by the specified opening degree when cooling refrigerant or oil recovery signal is received from the outdoor unit.

(2) Drain pump of 4-way air discharge cassette type and

concealed duct type operate during recovery control mode.

The indoor unit which stops operation, thermostat is OFF, or operates in FAN mode performs the following controls when the heating refrigerant/Oil recovery signal is received from the outdoor unit.

1) Opens PMV of the indoor unit by the specified opening degree.

2) Stops the fan.

3) Only 4-way Air Discharge Cassette type air conditioner rotates the indoor fan with intermittent operation for approx. 1 minute after recovery control.

4) Only 4-way Air Discharge Cassette type air conditioner rotates the indoor fan with intermittent operation for approx. 1 minute after recovery control as the outdoor unit.

5) After recovery control, drain pump of 4-way air discharge cassette type and cobcealed duct type will operate.

(1) For 5 minutes after the operation has started, the operation

is continued even if entering thermostat-OFF condition.

(2) However, if the thermostat has been turned off by changing

the set up temp., the thermostat is OFF with even the above condition. The protective control has priority.

• Recovery operation is usually executed every 2 hours.

• In the indoor unit which thermostat is OFF, or operates in FAN mode,

” lamp goes on.

“

• Recovery operation is

usually executed every 1 hour.

Drain pump control

12 Elimination of

remaining heat

13 Auto flap control (1) When the louver signal has been received from the remote

14 Filter sign display

(None in wireless type)

∗ Provided in the

separately laid type TCB-AX21E.

(1) During “COOL” operation (including DRY operation), the

drain pump operates.

(2) While the drain pump operates, if the float switch works,

the drain pump continues operation and a check code is displayed.

(3) While the drain pump stops, if the float switch works, turn

off the capacity demand command, stop the operation, and operate the drain pump. If the float switch continues operating for approx. 5 minutes, the operation stops and the check code is displayed.

(4) In heating operation, if humidifier “provided” is judged,

compressor “ON”, compressor “ON”, fan “ON”, and MAX (TC2, TCJ)

(1) When the air conditioner stops in the “HEAT” mode, drive

the indoor fan with “LOW” mode for approx. 30 seconds.

controller, the louver operates if the indoor fan is operating.

(2) In 4-way Air Discharge Cassette type, the discharge louver

automatically directs downward if the operation stops.

(3) In 4-way Air Discharge Cassette type, the discharge louver

directs upward if the heating operation is being prepared.

(1) The operation time of the indoor fan is integrated and

stored in memory, and the filter exchange signal is sent to the remote controller to display on the remote controller LCD after the specified time.

(2) When the filter reset signal is received form the remote

controller, time of the integrated timer is cleared. In this time, if the specified time has passed, the measured time is reset and LCD display disappears.

33°C, the drain pump operates.

Check code [P10] When CN70 is connected

or the item code 40 setup data is 1, the setup becomes humidifier “provided”, and the drain pump operates with the left conditions.

Page 58

No.

Item

Outline of specifications

Remarks

“ ” and “ ” display (Operation and heating stand-by)

<Operation standby> .......... Display on remote controller

(1) •“P05” is one of displays of power wire missing.

•“P05” of power cable is detected.

•“COOL/DRY” operation cannot be performed because the other indoor unit is under “HEAT” operation.

•“HEAT” operation cannot be performed because COOL

priority is set (Outdoor I/F P.C. board SW11 1-bit is ON) and the other indoor unit is under “COOL/DRY” operation.

•“FAN” operation cannot be performed because the system performs “Heat oil/Refrigerant recovery” operation.

• There is a unit in which indoor overflow “P10” is detected.

• There is a unit in which interlock alar m “P23” is detected.

(2) The above indoor units unavailable to operate waits under

condition of thermostat OFF.

<HEAT standby> .................. Display on remote controller

(1) • HEAT thermostat is OFF.

• Dur ing HEAT operation, the fan rotates with lower air speed than one specified in order to prevent discharge of cold draft or stops. (including case that defrost operation is being performed)

•“HEAT” operation cannot be performed because COOL priority is set (Outdoor I/F P.C. board SW11 bit 1 is ON) and the other indoor unit is under “COOL/DRY” operation.

(2) “HEAT standby” is displayed until the above conditions are

released.

•“ ” goes on.

” goes on.

•“

16 Selection of

central control mode

(1) The contents which can be changed on the remote controller

at indoor unit side can be selected by setup at the central controller side.

(2) In case of operation from TCC-LINK central controller

(TCB-SC642TLE, etc.)

[Central control mode 1] : Cannot operate [Central control mode 2] :

Cannot operate, stop, select mode, set up temp. [Central control mode 3] :

Cannot select mode, set up temp. [Central control mode 4] : Cannot select mode

(3) RBC-AMT21E (Wired remote controller)

While mode is the central control mode, “ lights on the display part of the remote controller.

CENTRAL”

If operation is performed from the remote control “CENTRAL CONTROL” mode, the status is notified with receiving sound.

Page 59

6-2. Outdoor Unit

6-2-1. Operation Start/Operation End

The compressor, solenoid valve, pulse motor valve (PMV), outdoor fan, etc. are controlled by a command from the indoor controller. The follower outdoor unit starts/stops by a command from the header outdoor unit.

No.

Pulse Motor Valve (PMV) control

Item

Operation explanation and applied data, etc.

(1) PMV control (using two PMV, 1 and 2)

1) PMV (Pulse Motor Valve) is controlled between 90 to 1000 pulses during operation.

2) In all cooling operation, PMV opening is controlled based upon detected TL sensor temp. and detected Pd pressure value. (Under-Cool control)

3) In all heating operation, PMV opening is controlled based upon detected TS and TD sensor temp. and detected PS pressure value. (Super-Heat control)

4) Close fully PMV opening when thermostat is OFF, operation stops and A.C. stops in trouble.

1000

PMV 2 550 500

PMV opening

(2) PMV3 control

1) PMV3 (Pulse Motor Valve 3) is controlled between 0 and 500 pulses during mainly cooling, partly heating or mainly heating, partly cooling operation.

2) PMV3 opening is controlled according to demand capacity difference (HP) between cooling capacity and all heating capacity.

3) Close fully PMV opening when thermostat is OFF, operation stops and A.C. stops in trouble.

PMV 1

Min. Med. Max.

Remarks

• In heating operation, PMV2 is 0 pulses and PMV may be controlled by PMV1 only with the minimum 45 pulses.

2 Outdoor fan control (1) Fan control in all cooling operation

1) Outdoor fan speed (mode) is controlled based upon detected Pd pressure value.

2) In a specified time when cooling operation star ted, the center outdoor unit controls the outdoor fan speed based upon detected Pd pressure value.

(2) Fan control in all heating operation

1) Outdoor fan speed (mode) is controlled based upon detected TE sensor temp.

2) If TE > 25°C has been continuously detected for 5 minutes, the operation may stop. In this case, the status is same as one in usual thermostat-OFF, so the operation restarts.

3) After A.C started, this control is not performed during the specified time after defrost operation and defrost control.

4) When refrigerant is excessively shortened, START/ STOP operation may be repeated by this control.

(3) Fan control for mainly cooling, part heating operation

The outdoor fan speed (mode) is controlled according to the target Pd (Discharge pressure).

When TE temp. (ambient temperature) exceeds 25°C, Heating operation stops. (Over the operation temp. condition of ambient temp.)

• The fan speed of the maximum mode differs by the outdoor HP.

Page 60

No.

Item

Operation explanation and applied data, etc.

Remarks

Capacity control

4 Oil level detection

control

1) According to the capacity demand command from the indoor controller, the inverter frequency control of the outdoor units is determined.

2) Two compressors in the outdoor unit rotate every stop of compressor and exchanges the start order when the compressor will be ON in the next time.

1) Based upon the detected temperature of TK1 to TK4 sensors, whether the right amount of oil is included in the compressor case or not is judged.

2) From relation between the detected temperature of the operating compressor TK1 or TK2 and detected temperature of TK3, TK4, whether oil level in the compressor case is right or not is judged. If it is insufficient, the control shifts to the oil equation control.

3) This control is usually performed dur ing operation of the compressor.

Oil

separator

(SV2)

• Min. frequency: 26Hz

• The detection is per-

formed in both cases of operation of a compressor and operation of two compressors.

• Adequate oil level (Standard)

1) The oil level of the

compressor 1 is adequate when TK1 - TK3

> 15°C

2) The oil level of the

compressor 2 is adequate when TK2 - TK3

> 15°C

(SV3D)

(SV41)

Balance pipe Packed valve

OFF

(TD1)

(SV3E)

(TK3)

Compressor 1

(TK1)

(TK4)

OFF

(SV3C)

(TK2)

Oil tank

(SV3A)

OFF

(SV42)

(TD2)

Compressor 2

(SV3B)

Page 61

No.

Item

Operation explanation and applied data, etc.

Remarks

Oil short protective control

6 Refrigerant/Oil

recovery control

This control is provided to prevent the oil short in the compressor. This control is basically performed by ON/OFF operation of the solenoid valves SV3A, SV3B, SV3C, SV3D. (For the schematic diagram of oil short protective control.)

(1) Oil-short protective control

The protection stops when the status of oil short continues for 30 minutes, and it restarts after 2 minutes and 30 seconds after. After then, if the protection stop is repeated 3 times, an error is determined. (Restart is not performed.) The error code is “H07”.

(1) In all cooling operation, this control is executed to regularly

recover the refrigerating oil stagnated in gas inter-unit pipe or indoor unit to the outdoor unit when the compressor driving command is weak, and to prevent refrigerant accumulation in the outdoor heat exchanger while low ambient cooling operation is performed. This control is managed by the header outdoor unit.

1) Control conditions

• Cooling oil recovery control is executed every 2 hours approximately.

2) Contents of control

• Recovery time continues for approx. 2 or 3 minutes though it differs according to the system capacity.

(2) Refrigerant recovery control in heating room

During heating operation, this is executed to recover liquid refrigerant stagnated in the stopped indoor unit. It is also used to recover oil in the outdoor heat exchanger in heating overload operation except with defrost condition. This control is managed by the header outdoor unit.

1) Heating refrigerant recovery control is executed every an hour approximately.

2) Recovery time continues for approx. 2 to 10 minutes though it differs according to the load condition.

(3) Control for refrigerating-oil recovery in simultaneous operation.

Controls to recover the refrigerating oil accumulated in the low-pressure gas inter-unit piping in simultaneous operation (regardless of all cooling operation/all heating operation).

1) Control condition

• When the integrating time of compressor-ON reached 95

minutes in simultaneous operation.

2) Control contents When the conditions have been satisfied, change the mode

of the indoor unit from heating to cooling mode (stop the indoor fan) and the oil is recovered for 2 minutes 30 seconds to max. 10 minutes. The indoor unit in cooling operation continues the operation.

• Oil accumulated in the oil separator is returned to the compressor.

• It is a protective control when drop of the oil level has been detected for a long time.

• Control for refrigerating oil recovery is performed with interval of approx. 2 hours.

• Recovery time differs according to the system capacity. Approx. 2 to 3 minutes are required.

• Refr igerant recovery control for heating is performed with interval of approx. one hour.

• Recovery time differs according to the load conditions. Approx. 2 to 10 minutes are required.

7 Defrost control

(Reverse defrost method)

(1) Defrost start condition

In all heating operation and mainly heating, part cooling operation the operating time is integrated when the detected TE sensor temp was lower than –2°C, and when 25 minutes have passed in the initial time after the compressor started and 55 minutes in the second time and after.

(2) Contents of control

• If the outdoor units are combined, the defrost operation forcedly continues for 2 minutes if the defrost operation has been once started.

(3) Stop conditions of defrost operation

• If the outdoor units are combined, the fan drive and compressor inverter frequency may be controlled by Pd pressure during defrost operation.

• Dur ing defrosting operation, all the solenoid valves of 4-way are OFF and all compressors are driven.

Page 62

No.

Item

Operation explanation and applied data, etc.

Remarks

Release valve control

(1) SV2 gas balance control

This control is executed to balance the gas when opening SV2 while the compressor is off, in order to decrease the activation load in the next compressor-ON time.

(2) SV2 high pressure release control

This control is to control pressure rising in low-frequency operation of the inverter.

(3) SV2 low pressure release control

This control is to prevent quick pressure dropping in transient operation. This control is individually executed by the header outdoor unit.

This control is executed as necessary except during stop time and thermostat-OFF time.

(4) SV41, SV42 valves

1) SV41, 42 low-pressure release control This control purposes to protect drop of low-pressure.

This control functions during defrost operation, heating start pattern controlling, all cooling operation, or mainly cooling, partly heating operation.

• Control contents (Defrost/heating start pattern)

Turn on SV41 and SV42 when PS pressure ≤ 0.1MPa, and turn off SV41 and SV42 when PS pressure ≥ 0.15MPa.

• Control contents (All cooling operation, Mainly cooling, partly

heating operation) Turn on SV41 and SV42 when PS pressure ≤ 0.14MPa and Pd pressure ≤ 1.8MPa, and turn off SV41 and SV42 when PS pressure ≥ 0.24MPa and Pd pressure ≥ 2.2MPa

2) High pressure release control This control is a gas bypass control which emergently prevents

the high pressure cut. Tur n on SV41 and SV42 when Pd pressure ≥ 3.5MPa, and turn off SV41 and SV42 when Pd pressure ≤ 3.45MPa.

(5) SV6 valve

1) Cooling bypass control This control is a liquid refrigerant bypass control to suppress rise

of the discharge temperature or compressor inside temp. Tur n on SV6 valve when the higher discharge temperature (TD1 or TD2) becomes 96°C or higher and turn off when it becomes below 84°C by bypassing liquid refrigerant.

(6) PMV3

1) High pressure release control (All heating operation) This control suppresses rise of high pressure during inverter low

frequency operation in all heating operation mode. Set up PMV3 opening to 45 pulses when Pd pressure = 3.45MPa.

2) High pressure release control (All cooling operation) Set up PMV3 opening to 60 pulses when Pd pressure = 3.5MPa.

9 Frequency

release control

(1) High pressure release control

This control is provided to correct the operation command of the compressor and suppress rise of high pressure.

1) Control contents The operation frequency is decreased by 1 step when Pd pres-

sure ≥ 3.4MPa. It is decreased by 1 step every 10 seconds until Pd pressure becomes below 3.4MPa.

2) Release condition

• When Pd pressure ≤ 3.2MPa

• When refrigerant recovery control star ts in all heating room

• Dur ing defrost operation, stop, thermo OFF

Page 63

No.

Compressor stop by high pressure release control

Item

Operation explanation and applied data, etc.

This control is to forcedly stop the compressor in outdoor unit according to Pd pressure.

(1) Contents of control

• The compressor stops when Pd pressure is over 3.5MPa.

Remarks

11 Case heater

control

12 IPDU control IPDU controls the inver ter compressor by command frequency,

The case heater output includes compressor case heater and accumulator case heater. This control is to prevent accumulation of refrigerant in the compressor case by turning of the power of heater while the compressor stops, and it is executed in all the outdoor units.

If electricity is not turned on for a specified time before the test run after installation, a trouble of the compressor may be caused. When the power has been interrupted for a long time and the operation starts from the status as it was, it is desirable to turn on the power before start of operation as per the test run time.

This control is used often together with the compressor winding heating control. In this case, the power sound may be heard but it is not a trouble.

(1) Contents of control

• Turns on during compressor-OFF

• Turns off when the detected TO sensor temp is 28°C or higher, and turns on when it is 25°C or lower

• The operation continues for 10 minutes after compressor-OFF

changed to compressor-ON.

frequency up/down speed, and current release control value from the interface P.C. board.

The main controls of IPDU control P.C. board are described below. (1) Current release control

The output frequency is controlled by AC input current value which is detected by inputting current sensor (CT) on the control P.C. board to prevent the inverter input current from rising higher than the specified value.

(2) Heat sink temp detection control

1) This control protects IGBT overheat preventive protection by

the thermistor (TH temp) on the compressor driving module in IPDU.

∗ For TH temperature, the higher one of IPDU1 temperature

and IPDU2 temperature is applied.

(3) Over-current protective control

1) The compressor stops when IPDU control P.C. board detects

over-current.

(4) Compressor case thermo control

1) When the compressor case thermostat work s, the compressor

stops.

2) When the compressor stops, 1 is counted to the error count,

and the compressor reactivates after 2 minutes and 30 seconds. After reactivated, the error count is cleared if the operation continues for 10 minutes or more.

3) The error is determined with error count 4. The error “H04” is

displayed in compressor 1 and “H14” in compressor 2, respec- tively.

• TH sensor is provided to IPDU1 and 2 each.

• The case ther mostat

is usually closed and connected to the interface P.C. board.

13 High pressure

prevention control

(1) High pressure SW control

• The high-pressure SW is usually closed and connected to IPDU.

1) The compressor driver stops when high pressure SW at inverter compressor operates.

2) When the compressor dr iver stops, 1 is counted to the error count, and the compressor driver reactivates after 2 minutes 30 seconds. After reactivated, the error count is cleared if the operation continues for 10 minutes or more.

3) The error is deter mined with error count 4. The error “P04” is displayed.

Page 64

1. Cooling operation in low ambient temperature

1) When low pressure is lowered, the freeze pre vention control by the indoor unit TC sensor may decrease the frequency.

2) When low pressure is lowered, the cooling capacity control may decrease the frequency.

3) When discharge temp. sensor value lo wers below 60°C , the frequency may be increased over the receive command from the indoor unit.

2. PMV (Pulse Motor Valve) for outdoor unit

1) When the power is turned on, a tap sound to initialize PMV is heard. If this sound is not heard, PMV operation error is considered. However, this sound may not be heard at a place where outside sound takes precidence.

2) Do not remove the driving part (Head part) of PMV during operation. It may cause error in opening.

3) When transporting (replacing) the set, never keep the driving part removed. The valv e is closed, and the valve is damaged by sealed liquid compression.

4) When removing the driving part and attaching it again, push in it securely until a “click” sound can be heard. Then, turn off the power once, and turn on the power again.

Release item Operation

SV2 ON, SV41, SV42 ON

High pressure release

Low pressure relea se SV2 ON, SV41, SV42 ON, Oper ation f requency limit

Discharge temp . release SV6 ON, Operation frequency limit

Current release Operation frequen cy li mit

Heat sink release Outdoor fan speed up, Operation frequency limit

PMV3=45 pulses (All heating operation), 60 pulses (All cooling operation) Operation frequency limit

Page 65

7. APPLIED CONTROL

7-1. Indoor Unit

7-1-1. Setup of Selecting Function in Indoor Unit

(Be sure to Execute Setup by a Wired Remote Controller)

<Procedure> Execute the setup operation while the unit stops.

5 6

UNIT

SET

Push

The firstly displayed unit No. indicates the header indoor unit address in the group control. In this time, the fan of the selected indoor unit is turned on.

Every pushing displayed. In this time, the fan of the selected indoor unit only is turned on.

Specify the item code (DN) using the setup temperature and buttons.

Select the setup data using the timer time and buttons. (When selecting the DN code to “33”, change the temperature indication of the unit from “°C”

to “°F” on the remote controller.)

SET

, and buttons simultaneously for 4 seconds or more.

UNIT

button, the indoor unit numbers in the group control are successively

Push

• To change the selected indoor unit, return to procedure 2 .

• To change the item to be set up, return to procedure 3 .

Pushing button returns the status to normal stop status.

button. (OK if display goes on.)

SET

Page 66

Table: Function selecting item code (DN)

(Items necessary to perform the applied control at the local site are described.)

Filter sign lighting time

Dirty state of filter

Central control address

Specific indoor unit priority

Heating temp shift

Existence of [AUTO] mode

Cooling only

Type

Indoor unit capacity

Line address

Indoor unit address

Group address

Flap type (Adjustment of air direction)

Temp difference of [AUTO] mode selection COOL → HEAT, HEAT →COOL

Automatic restart of power failure

Operation condition of humidifier

Selection of option/ error input (CN70)

HA terminal (CN61) select

Automatic elevating grille

Ventilating fan control

TA sensor selection

Temperature unit select

Control for humidifier (+ drain pump control)

High ceiling selection (Air volume selection)

Timer set (Wired remote controller)

Smudging-proof control clear

Outside interlock release condition

Item

Description

0000 : None 0001 : 150H 0002 : 2500H 0003 : 5000H 0004 : 10000H

0000 : Standard 0001 : High degree of dir t

(Half of standard time)

0001 : No.1 unit to 0064 : No.64 unit 0099 : Unfixed

0000 : No priority 0001 : Priority

0000 : No shift 0001 : +1°C 0002 : +2°C to 0010 : +10°C

(Up to +6 recommended)

0000 : Provided 0001 : Not provided

(Automatic selection from connected outdoor unit)

0000 : Heat pump 0001 : Cooling only

(No display of [AUTO] [HEAT])

0000 : (1-way air discharge cassette) 0001 : (4-way air discharge cassette) to 0037

0000 : Unfixed 0001 to 0034 0001 : No.1 unit to 0030 : No.30 unit 0001 : No.1 unit to 0064 : No.64 unit 0000 : Individual 0001 : Header unit of group

0002 : Follower unit of group 0000 : Not provided 0001 : Swing only

0004 : [4-way Air Discharge Cassette type] and [Under Ceiling type]

0000 : 0 deg t o 0010 : 10 deg (For setup temperature, reversal of COOL/HEAT by ± (Data value)/2)

0000 : None 0001 : Restart

0000 : Usual 0001 : Condition ignored (Detection control for heat exchanger temperature)

0000 : Filter input 0001 : Alarm input (Air washer, etc.) 0002 : Humidifier input

0000 : Usual 0001 : Leaving-ON prevention control

0000 : Unavailable 0001 : Available

0000 : Body TA sensor 0001 : Remote controller sensor 0000 : °C (at factory shipment) 0001 : °F

0000 : None 0001 : Humidifier + Vaporizing system (Pump ON) 0002 : Humidifier + Ultrasonic system

(Pump ON after specified time passed) (Unused)

0003 : Humidifier + Natural drain system (Pump OFF) [4-way Air Discharge Cassette type] and [Under Ceiling type]

0000 : Standard filter 0001 : Super-long life filter 0003 : High efficiency filter

[Concealed Duct Standard type] 0000 : Standard static pressure (40Pa) 0001 : High static pressure 1 (70Pa) 0003 : High static pressure 2 (100Pa) 0005 : Correspond to quiet sound 0006 : Low static pressure (20Pa)

0000 : Available (Operable) 0001 : Unavailable (Operation prohibited)

0000 : Clear

0000 : Operation stop 0001 : Release communication signal

receive

At shipment

According to type

0000 : Standard

0099 : Unfixed

0000 : No priority

0002 : +2°C (Floor type 0000: 0°C)

0001 : Not provided

0000 : Heat pump

According to model type

According to capacity type 0099 : Unfixed 0099 : Unfixed 0099 : Unfixed

According to type

0003 : 3 deg

(Ts±1.5)

0000 : None

0000 : Usual

0002 : Humidifier

0000 : Usual

(HA terminal)

0000 : Unavailable

0000 : Body TA sensor 0000 : °C

0003 : Humidifier ON,

Pump OFF

0000 : Standard

0000 : Available

4- way Air Discharge Cassette type only

0000 : Operation stop

Page 67

TYPE

Item code [10]

Setup data

0000 0001 0002 0003 0004 0006 0007 0008 0010 0011 0013

1-way Air Discharge Cassette 4-way Air Discharge Cassette 2-way Air Discharge Cassette 1-way Air Discharge Cassette (Compact type) Concealed Duct Standard Concealed Duct High Static Pressure Under Ceiling High Wal l Floor Standing Cabinet Floor Standing Concealed Floor Standing

Indoor unit capacity

Type

—

Abbreviated Model name

MMU-AP XXX SH MMU-AP XXX H MMU-AP XXX WH MMU-AP XXX YH MMD-AP XXX BH MMD-AP XXX H MMC-AP XXX H MMK-AP XXX H MML-AP XXX H MML-AP XXX BH MMF-AP XXX H

Item code [11]

Setup data

0001 0003 0005 0007 0009 0011 0012 0013 0015 0017 0018 0021 0023

Model

007 009 012 015 018 024 027 030 036 048 056 072 096

—

Page 68

7-1-2. How to Set Up the Cooling Only Indoor Unit

When setting the specific indoor unit to Cooling Only unit without connecting to the flow selector unit, setup to the indoor unit to become the Cooling Only unit is necessary.

P erform setup in the following procedure .

Setup to the indoor unit is performed by handling the wired remote controller. Even if a wired remote controller is not used, attach a wired remote controller for setup.

When using the air conditioner with a wireless remote controller, select “Cooling Only” of the wireless remote controller after the above setup . For handling the wireless remote controller, refer to the manual attached to the wireless remote controller.

Change the setup during stop of the operation. (Be sure to stop operation of the air conditioner.)

SET DATA

CODE No.

UNIT No.

R.C. No.

Procedure

3 4

6 1

Description

When pushing flashes as shown in the figure.

Check that the displayed item code is [10].

• If the item code indicates one other than [10], push erase the display, and then retry the operation from the first step. (After pushing controller cannot be accepted after a while.) (* The display changes according to the indoor unit model.)

In a group control, the firstly displayed indoor unit No. becomes the header unit. Every pushing [UNIT] button, the indoor unit No. in the group control is displayed successively.

Select an indoor unit of which setup is to be changed. In this time, the position of the indoor unit of which setup is to be changed

can be confirmed because the fan and flap of the selected indoor unit work.

Use and buttons of the set temperature to specify the item code [0F].

Use and buttons of the timer time to select the setup data [0001].

SET

+ CL + buttons simultaneously for 4 seconds or more, after a while, the display part

button, the operation of remote

Setup data

Cooling Only setup

0000

Heat pump

button to

0001

Cooling Only

SET

UNIT

SET DATA

UNIT No.

R.C. No.

UNIT No.

** **

R.C. No.

CODE No.

2 3

SET

Push

• To change the setup of an indoor unit other than the selected one, start operation from Procedure

• In a group control, setup change of all the indoor units in a group is necessar y.

• Pushing CL button clears the set up contents which have been already set.

• In this case, retr y from Procedure

When the setup finished, push button. (The setup is determined.) Pushing

(For some time after remote controller cannot be accepted.)

button. In this time, if the display changes from flashing to lighting, the setup completes.

To change the setup of the set other than the selected one, start again operation from Procedure

CAUTION Cooling Only and Heat pump cannot exist in the same group.

button deletes the display and returns to normal stop status.

button has been pushed, the operation of the

Page 69

7-1-3. Applied Control in Indoor Unit

n Remote location ON/OFF control box (TCB-IFCB-4E)

[Wiring and setup]

• Use the exclusive connector for connection with the indoor control P.C. board.

• In a group control, the system can operate when connecting with any indoor unit (Control P.C. board) in the

group. However when taking out the operation/error signal from the other unit, it is necessary to take out from each unit individually.

(1) Control items

1) Start/Stop input signal : Operation start/stop in unit

2) Operation signal : Output during normal operation

3) Error signal : Output during alarm (Serial communication error or indoor/outdoor protective device) oper ation

(2) Wiring diagram using remote control interface (TCB-IFCB-4E)

Input IFCB-4E : No voltage ON/OFF serial signal Output No voltage contact for operation, error display

Contact capacity: Below Max. AC240V 0.5A

Indoor control P.C. board

Start/Stop input

COM (GND)

Remote controller prohibition/clear input

Operation signal output

COM (+12V)

Error signal output

1 2 3 4 5 6

CN61

T10

(YEL)

Remote location ON/OFF control box

Power supply 220–240V,

(TCB-IFCB-4E)

1 2 3 4

CN06

1 2 3 4 5 6

CN13

50Hz

ON/OFF serial signal input

COM

Operation signal output

Error signal output

Page 70

n Ventilating fan control from remote controller

[Function]

• The start/stop operation can be operated from the wired remote controller when air to air heat exchanger or ventilating fan is installed in the system.

• The fan can be operated even if the indoor unit is not operating.

• Use a fan which can receive the no-voltage A contact as an outside input signal.

• In a group control, the units are collectively operated and they can not be individually operated.

(1) Operation

Handle a wired remote controller in the following procedure.

∗ Use the wired remote controller during stop of the system. ∗ Be sure to set up the wired remote controller to the header unit. (Same in group control) ∗ In a group control, if the wired remote controller is set up to the header unit, both header and follower units

are simultaneously operable.

Push concurrently

The unit No. displayed firstly indicates the header indoor unit address in the group control. In this time, the fan of the selected indoor unit turns on.

Every pushing

SET

UNIT

+ buttons for 4 seconds or more.

button, the indoor unit numbers in group control are displayed succes-

sively.

In this time, the fan of the selected indoor unit only turns on.

Using the setup temp or button, specify the item code !.

Using the timer time or button, select the setup data. (At shipment: )

The setup data are as follows:

Setup data

 

Push

• To change the selected indoor unit, go to the procedure 2 ).

• To change the item to be set up, go to the procedure 3 ).

SET

button. (OK if display goes on.)

Handling of operation of air to air heat exchanger or ventilating fan

Unavailable (At shipment)

Available

Pushing returns the status to the usual stop status.

(2) Wiring

Relay (DC12V, procured locally)

CN32

FAN DRIVE

(2P WHI)

Indoor control

P.C. board

Note) Determine the cable length between the

121

indoor control P.C. board and the relay within 2m.

Outside control input of fan

To terminal

4-way Air Discharge Cassette type Concealed Duct Standard type Under Ceiling type High Wall type

Corresponds up to a relay in which rated current of the operation coil is approx. 75mA

Other type models: Correspond up to a relay in which rated current of the

operation coil is approx. 16mA (Does not correspond to a terminal block type relay on the market.)

  

model :

Page 71

n Leaving-ON prevention control

[Function]

• This function controls the indoor units individually. It is connected with cable to the control P.C. board of the indoor unit.

• In a group control, it is connected with cable to the indoor unit (Control P.C. board), and the item code - is set to the connected indoor unit.

• It is used when the start operation from outside if unnecessary but the stop operation is necessary.

• Using a card switch box, card lock, etc, the forgotten-OFF of the indoor unit can be protected.

• When inserting a card, start/stop operation from the remote controller is allowed.

• When taking out a card, the system stops if the indoor unit is operating and start/stop operation from the

remote controller is forbidden.

(1) Control items

1) Outside contact ON : The start/stop operation from the remote controller is allowed. (Status that card is inserted in the card switch box)

2) Outside contact OFF : If the indoor unit is operating, it is stopped forcedly. (Start/Stop prohibited to remote controller) (Status that card is taken out from the card switch box)

∗ When the card switch box does not perform the above contact operation, convert it using a relay with b

contact.

(2) Operation

Handle the wired remote controller switch in the following procedure. ∗ Use the wired remote controller switch during stop of the system.

121

343

565

+ buttons for 4 seconds or more.

Relay (procured locally)

Power supply

Outside contact (Card switch box, etc: Procured locally)

* In the figure, the contact indicates a status that the card is taken out.

Push concurrently

Using the setup temp or button, specify the item code - .

Using the timer time or button, set  to the setup data.

Push

Push button. (The status returns to the usual stop status.)

SET

button.

SET

(3) Wiring

CN61

T10

(YEL)

Indoor control P.C. board

Note) Determine the cable length between the indoor control P.C. board and the relay within 2m.

n Demand control from indoor unit

When the relay is turned on, a forced thermostat-OFF operation starts.

• Wiring example CN73

(2P plug: RED)

Indoor control P.C. board

EXCT

121

Relay (procured locally)

Relay coil signal

Note) Determine the cable length between the indoor or outdoor control P.C. board and the relay within 2m.

Page 72

7-2. Outdoor Unit

7-2-1. Applied Control in Outdoor Unit

The following functions become available by setting the switches on the outdoor interface P.C. board.

No.

Outdoor fan high static pressure shift

Function

Switch No.

SW10

Bit

SW10

Bit 2

For setup of outdoor fan high static pressure shift

7-2-1-1. Outdoor fan High Static Pressure Shift

n Usage/Features

This function is set when connecting a duct to discharge port of the outdoor unit.

n Setup

Turn “Bit 2” of the Dip switch [SW10] on the interface P.C. board of the outdoor unit to ON side.

n Specifications

Increase No. of rotations of the propeller fan of the outdoor fan so that a duct with the maximum outside static pressure 35Pa (3.5mmAq) can be installed. If installing a discharge duct (Below 35Pa (3.5mmAq)) exceeding the duct resistance 15Pa (1.5mmAq), execute this setup.

45Pa or more: For details of adjustment, consult with the sales subsidiary. Discharge air volume in each outdoor unit is described in the following table.

Capacity rank (MMY-MAP) Standard air volume of outdoor unit (m³/min.)

0801 type 1001, 1201 type

165 175

Page 73

7-2-2. Applied Control in Outdoor Unit

The following functions become a vailable b y using a control P.C. board sold separately. Set up the switches or the outdoor unit (U1).

No.

Power peak-cut control (Standard)

Power peak-cut control (Expansion)

Snowfall fan control

External master ON/OFF control

Night operation control

Operation mode selection control

Function

Switch No.

SW07 SW07

— — — —

Bit

1,2

— — — —

Connector No.

CN513 CN513 CN509 CN512 CN508 CN510

Used control P.C. board

TCB-PCDM2E TCB-PCDM2E TCB-PCMO2E TCB-PCMO2E TCB-PCMO2E TCB-PCMO2E

CN508

Red

CN509

Black

CN510

White

CN513

Blue

CN511

Green

SW07

For power peak-cut control selection

Bit 1

For power peak-cut control (expansion) selection

Bit 2

Page 74

7-2-2-1. Power Peak-cut Control (Standard)

Header outdoor unit interface P.C. board

CN513 (BLU)

Connection cable

Power peak-cut control board

OFF ON

SW2

In case of serial signal

In case of pulse signal

PJ17 (4P WHI)

1.2V

SW1

Operation

Display

Power supply

Max. AC240V

SW07 Set up Bit 1.

(Setup to header unit only)

Procured locally

Operation

The upper limit capacity of the outdoor unit is restricted based on the demand request signal from outside.

L1 : Display lamp during power peak-cut control SW1 : Power peak-cut ON switch

(ON during demand, OFF in normal time) ∗1

SW2 : Power peak-cut OFF switch

(OFF during demand, ON in normal time) ∗1

Input signals of SW1 and SW2 are acceptable even if they are longer then pulse input (100mm.sec.) or serially made.

However do not turn on SW1 and SW2 simultaneously. ∗ Be sure to prepare a contact for each terminal.

Relay contact capacity of “operation” port

Below AC240V 0.5A (COSØ = 100%) Below DC24V 1A (Non-inductive load) Note) When connecting non-inductive load such as relay

coil to L1 load, insert the noise surge absorber CR (In case of AC) or counter electromotive-proof diode (In case of DC) into the bypass circuit.

Power peak-cut control board: TCB-PCDM2E Outdoor unit destination to be connected becomes the

header outdoor unit (U1).

Setup when Power peak-cut control requested

Power peak-cut control board

(TCB-PCDM2E)

Power peak-cut ON signal is input. Power peak-cut OFF signal is input.

SW1 SW2 L1

ON OFF ON

OFF ON OFF

Outdoor unit interface P.C. board

SW07: Bit 1 OFF SW07: Bit 1 ON

0% (Forced stop) Capacity 60% (Upper limit restriction)

100% (Normal operation) 100% (Normal operation)

CN513

Blue

SW07

Bit 1

Operation stop to 100%

OFF

ON 60% to 100%

Page 75

7-2-2-2. Power Peak-cut Control (Expansion)

Header outdoor unit interface P.C. board

CN513 (BLU)

Connection cable

Power peak-cut control board

PJ17 (4P WHI)

SW07 Set up Bit 1. ON Bit 2.

(Setup to Header unit only)

Operation

The upper limit capacity of the outdoor unit is restricted based on the demand request signal from outside.

L1 : Display lamp during Power peak-cut control SW1 : Power peak-cut ON switch ∗1 SW2 : Power peak-cut OFF switch ∗1

Input signals of SW1 and SW2 are acceptable even if they are upper than pulse input (100mm. sec.) or serially made.

∗ Be sure to prepare a contact for each terminal.

Relay contact capacity of “operation” port

Below AC240V 1A (COSØ = 100%)

OFF ON

1.2V Operation

Below DC24V 2A (Non-inductive load)

SW2 SW1

Display

Note) When connecting non-inductive load such as relay

coil to L1 load, insert the noise surge absorber CR (In case of AC) or counter electromotive-proof diode

(In case of DC) into the bypass circuit.

Power peak-cut control board: TCB-PCDM2E

Power supply

MAX AC240V

Procured locally

Outdoor unit destination to be connected becomes the header outdoor unit (U1).

Setup at power peak-cut control (expansion) request

Outside power

peak-cut request

SW1 SW2

OFF OFF

ON OFF

OFF ON

ON ON

Display lamp

OFF

ON ON ON

Power Peak-cut request

Outdoor wire interface P.C. board (SW07/ Bit 2 ON)

SW07 : Bit 1 OFF SW07 : Bit 1 ON

100% (Normal operation) 100% (Normal operation) 80% (Upper limit restriction) 85% (Upper limit restr iction) 60% (Upper limit restriction) 75% (Upper limit restr iction) 0% (Forced stop) 60% (Upper limit restriction)

CN513

Blue

SW07

Bit 1

Bit 2

Operation stop to 60%, 80%, 100%

OFF

ON 60% to 60%, 75%, 85%, 100%

Power peak-cut (expansion) ON

Page 76

7-2-2-3. Snowfall Fan Control

Header outdoor unit interface P.C. board

CN509 (4P BLK)

Connection cable

External master ON/OFF control board

HEAT

Procured locally (Snow sensor)

COOL

PJ17

SMC

(4P WHI)

COM

Operation

The outdoor unit fan operates by the Snowfall signal from outside.

Terminal

COOL

(SMC)

The control contents are accepted during leading and trailing of the input signal. (The status of leading and trailing should be held for 100mm. sec. or more.)

External master ON/OFF control board : TCB-PCMO 2E Outdoor unit destination to be connected becomes the header

outdoor unit (U1).

SMC: Snowfall detection switch

Input signal

ON OFF

Operation

Snowfall fan control (Operates outdoor unit fan.)

Usual operation (Releases control.)

7-2-2-4. External master ON/OFF control

Header outdoor unit interface P.C. board

CN512 (4P BLU)

Connection cable

External master ON/OFF control board

HEAT

COOL

SMH

PJ17

SMC

(4P WHI)

COM

Operation

The outdoor unit starts or stops the system.

The control contents are accepted during trailing of the input signal. (The status of trailing should be held for 100mm. sec. or more.)

NOTES

1) Do not turn on COOL and HEAT terminals concurrently.

2) Be sure to prepare a contact for each terminal.

External master ON/OFF control board : TCB-PCMO 2E Outdoor unit destination to be connected becomes the header

outdoor unit (U1).

Terminal

COOL

(SMC)

Heat

(SMH)

Input signal

Starts collectively indoor units.

OFF

Stops collectively indoor units.

OFF

Outside signal: No voltage pulse contact

Operation

Procured locally

SMC: Input signal for start. SMH: Input signal for stop.

Page 77

7-2-2-5. Night Operation Control

Header outdoor unit interface P.C. board

CN508 (4P RED)

Connection cable

External master ON/OFF control board

HEAT

COOL

PJ17

(4P WHI)

COM

SMC

Procured locally

Operation

The noise decreases in the night.

Terminal

COOL (SMC)

Input signal

ON OFF

Night (sound reduction) operation control

Usual operation

The control contents are accepted during leading and trailing of the input signal.

(The status of leading and trailing should be held for 100mm. sec. or more.)

Capacity criterion during night operation control Capacity during control indicates values as described in the

following table.

Night operation sound

reduction dB (A)

1201 type 1001 type 0801 type

50 50 50

Approx. 55% Approx. 45% Approx. 65% Approx. 55% Approx. 80% Approx. 70%

Operation

Capacity

COOL HEAT

(Against Max. capacity)

SMC : Input signal for night operation. External master ON/OFF control board : TCB-PCMO 2E

Outdoor unit destination to be connected becomes the header outdoor unit (U1).

7-2-2-6. Operation Mode Selection Control

Header outdoor unit interface P.C. board

CN510 (4P WHI)

Connection cable

External master ON/OFF control board

HEAT

COOL

PJ17

(4P WHI)

COM

Operation

This control can be operated with the operation mode which is permitted by SMC or SMH.

The indoor unit operating by operation mode without permission is as follows:

1) Display on remote controller “

2) Indoor fan In FAN mode: Fan normally operates. In COOL mode: Fan normally operates. In HEAT mode: Fan operates with ultra low speed. * Be sure to prepare a contact for each contact terminal.

SMC: COOL mode designated input switch SMH: HEAT mode designated input switch

(Mode select controlled)” goes on.

Outside signal: No voltage serial contact

SMH

SMC

Procured locally

External master ON/OFF control board : TCB-PCMO 2E Outdoor unit destination to be connected becomes the header

outdoor unit (U1).

Page 78

8. TEST OPERATION

U1U3U2

U1U3U2 U5 U6

U1U3U2

U1AU2

U5 U6

Outdoor unit

Indoor unit

To indoor unit

Central control units

Other refrigerant line

Earth

3-phase 380-415V Leak interception

Main switch

1-phase 220–240V Leak interception

Main switch

Remote

controller

U1AU2

Remote

controller

U1AU2

Remote

controller

U1AU2

2 4

5 5

8-1. Procedure and Summary of Test Operation

A test operation is executed in the f ollowing procedure. When a trouble or an error occurs in each step, remove causes of a trouble or an error referring to the section “9. Tr oubleshooting”.

Check before test operation

Check the basic items, mainly the installation work. Be sure to enter the check results in the check list 1 and 2.

2. In case that a central control system is connected (Before address setup)

Check the main power supply

is turned on.

Set up the addresses.

Test operation

It is the check after the power has been turned on. Check the refrigerant circuit system is normally turned on.

Start the address setup in the outdoor/indoor units.

(NOTE) The operation does not start by only power-ON.

Carry out a test operation. Check air blowing and cooling/heating operation in the indoor unit.

END

8-2. Check Items before Test Operation

Prior to the test operation, check the following items so that there is no trouble in the installation work.

Outdoor unit

Main switch

Indoor unit

Main switch

Outdoor unit (A)

U1U3U2

Earth

U1AU2

The communication system differs from that of R22 or R407 refrigerant “Modular Multi system” air conditioner.

Check again cautious points on wiring.

1. In case that a center control system is not connected:

No.

Are indoor and outdoor communication lines of the header unit connected to U1/U2



terminals? Is the relay connector between U1/U2 terminal and U3/U4 terminal removed?



(Set up at shipment from the factory) Is the terminal resistance (SW30-2) on the interface P.C. board of the outdoor unit



turned on? (Set up at shipment from the factory)



Is the end terminal of the shield wire grounded?

NOTE) The above figure does not show all the electric cables.

For details, refer to the installation manuals for outdoor unit, indoor unit, remote controller, or optional devices.

3-phase 380-415V Leak interception

1-phase 220–240V Leak interception

Main check items

U5 U6

4 4

U1AU2

Remote controller

U1AU2

Check

No.

Are indoor and outdoor communication lines of the header unit connected to U1/U2



terminals? Is the relay connector between U1/U2 terminal and U3/U4 terminal removed?

U1AU2



(Set up at shipment from the factory) (Before address setup, remove the relay connector.) Is the communication line of the central control system connected to the header unit U3/U4

terminals of each refrigerant line?



(The communication line of the central control system may be connected to the communication lines of the indoor/outdoor communication lines.)

Is the terminal resistance (SW30-2) on the interface P.C. board of the header unit turned on? (Set up at shipment from the factory)



(After address setup, turn off SW30-2 of the header unit except the smallest unit after check of trial operation.)

Is the end terminal of the shield wire grounded?



When the refrigerant line and the central control system of the digital inverter air conditioner are connected:



→ Are “1 : 1 model” connection interface adaptors correctly connected? → When the digital inverter air conditioner operates with group operation, twin, or triple

operation, are the adopters connected to the header unit of the indoor unit?

Main check items

Check

NOTE) The above figure does not show all the electric cables.

For details, refer to the installation manuals for outdoor unit, indoor unit, remote controller , or optional devices.

Page 79

3. Connection check between Flow Selector Unit (FS Unit) and indoor unit

Connection of shield wire close end (Connect all connecting parts of each indoor unit.)

A B

Control

wiring

CN81

S(N)S(N) S(N)

Power

line

R (L)

U1U2

To Outdoor unit

U1/U2

Indoor unit Indoor unit

R (L)

U1U2

A B

CN81

Wired remote controller

Control

FS unit FS unit FS unit

wiring

CN02

CN01

Power

line

No.



Are indoor/outdoor communication lines connected to U1/U2 terminals?



Is signal line of FS unit connected to connector CN81?



IIs the power supply cable of FS unit connected to R (L) and S (N) fasten terminals? Is power supply cable of FS unit connected to the closed end connector if the indoor unit is



Wall type or Concealed Duct High Static Pressure type?

NOTE) TThe above figure does not cover all the electric wirings.

For details, refer to the Installation Manual of Flow selector unit.

Main check items

Wired remote controller

CN02 CN01

(Open)

Indoor unit

U1U2AB

R (L)

Control

wiring

CN81

Power

line

losed end connctor

Check

Wired remote controller

CN02 CN01

• Using the “Check list 1”, check there is no trouble in the installation work.

Is capacity of the leak breaker appropriate? Outdoor unit (A) XXXX A Indoor unit XXXX A Is diameter of the power cable correct? Outdoor unit (A) XXXX mm² Indoor unit XXXX mm² Is control communication line correct? Indoor –outdoor connection ter minals (U1, U2) XXXX

Is power of indoor units supplied collectively? Is earth grounded Is insulation good? Is the main power voltage good? XXXX V Is diameter of connecting pipe correct? Is the branch kit correct? Is drain water of the indoor unit arranged so that it flows without accumulation? Is thermal insulation of pipes good? (Connecting pipes, Branch kit) Is not short-circuit of discharge air in indoor/outdoor units? After airtight test for pipes, are vacuuming and adding of refrigerant executed? Are valves of all the outdoor units fully opened? Gas side Liquid side Balance side

Central control system connection terminals (U3, U4) Do not connect outdoor–outdoor connection terminals.

Outdoor unit (A)

XXXX XXXX XXXX

XXXX XXXX

• Check the additional amount of refrigerant.

Calculate the additional amount of refrigerant from the additional amount of refrigerant (A) and finally a value multiplied by heat recovery correction value (1.3) becomes the additional amount of refrigerant (B).

Additional amount=Actual liquid×Additional amount of of refrigerant (B) pipe length refrigerant per liquid pipe 1m



(A)

Firstly enter the total length for each liquid pipe in the following table, and then calculate the additional amount of refrigerant by pipe length.

Pipe dia at liquid side

Standard amount of refrigerant

Ø6.4 Ø9.5

Ø12.7

0.025 ×

0.055 ×

0.105 ×

kg/m

Total pipe length at each liquid side

Additional amount of refrigerant by pipe length (A)

Additional amount of refrigerant (B)

1.3



Additional amount of refrigerant pipe

dia at each liquid side kg

= = =

kg kg kg

kg kg

Next, refer to the following table f or the corrective amount of refrigerant (C) by system capacity.

Page 80

8-3. Check at Main P ower-ON

Interface P.C. board

SW01 SW02

SW03

7-segment display [A]

Push-switch SW04

Push-switch SW05

Push-switch SW15

7-segment display [B]

After turning on the main power of the indoor units and outdoor unit in the refrigerant line to be executed with a test operation, check the following items in outdoor and each indoor unit.

(After turning on the main power, be sure to check in order of indoor unit

→→

→ outdoor unit.)

→→

If the power supply of the outdoor unit has been firstly turned on, [E19] appears on the 7-segment display on the interface P.C. board until the po wer supply of the indoor unit is turned on. However it is not an error.

1. Check that all the rotary switches, SW01, SW02, and SW03 on the interface P.C. board of the outdoor unit are set up to “1”.

2. If other error code is displayed on 7-segment [B], remove the cause of trouble referring to “9. T roubleshooting”.

3. Check that [L08] is displayed on 7-segment display [B] on the interface P.C. board of the outdoor unit. (L08: Indoor address unset up)

(If the address setup operation has already finished in service time, etc, the above check code is not displayed, and only [U1] is displa yed on 7-segment display [A].)

Interface P.C. board

7-segment display [A]

7-segment display [B]

SW01 SW02 SW03

1. Display check on remote controller (In case of wired remote controller) Check that a frame as shown in the following left figure is displayed on LC display section of the remote

controller.

8-4. Address Setup

After power-ON, set up the indoor address from the interface P.C. board of the outdoor unit.

(The address setup operation cannot be performed by power-ON only.)

8-4-1. Cautions

1. It requires approx. 5 minutes usually f or 1 line to automatically set up address. Howev er in some cases, it may require maximum 10 minutes .

2. It is unnecessary to operate the air conditioner for address setup.

3. Manual address setup is also available besides automatic setup. Automatic address: Setup from SW15 on the interface P.C. board of the outdoor unit Manual address: Setup from the weird remote controller.

(For details, refer to section “8-4-3. Address setup procedure”)

8-4-2. Address Setup and Check Procedure

Procedure

1 2

Item

Indoor unit power-ON Outdoor unit power-ON 7-segment display

check

Address setup start

Display check after setup

System information check after setup

Turn on power of indoor unit in refrigerant line to which address is set up. Turn on power of all the outdoor units in refrigerant line to which address is set up. Check that [L08] is displayed on 7-segment display [B] on the interface P.C. board of the

outdoor unit in the system to which address is set up. Confirm the corresponding items in “8-4-3 Address setup procedure”, and then set up address

according to the operation procedure. (Be sure that the setup operation may differ in group control or central control.) Note) Address cannot be set up if switches are not operated.

• After address setup, [U1] [ ] are displayed in 7-segment display section.

• If an error code is displayed in 7-segment display [B], remove the cause of trouble referring to “9. Troubleshooting”.

Using 7-segment display function, check the system information of the scheduled system. (This check is executed on the interface P.C. board of the outdoor unit.)

System capacity No. of connected indoor units

After the above checks, return rotary switches SW01, SW02, SW03 to 1/1/1.

Operation and check contents

Rotary switch setup

SW01 SW02 SW03

123 143

[Connected No. of units]

7-segment display

[A] [B]

[No. of HP] [HP]

If a frame is not displayed as shown in the abo ve right figure, the power of the remote controller is not normally turned on. Therefore check the following items.

• Check power supply of indoor unit.

• Check wiring between indoor unit and remote controller.

• Check whether there is cutoff of cable around the indoor control P.C. board or not, and chec k connection

• Check failure of transformer for the indoor microcomputer.

• Check indoor control P.C. board failure.

failure of connectors.

UNIT

SET

Normal status

(Power and operation stop)

UNIT

SET

Abnormal status

(Power is not normally turned on.)

Page 81

8-4-3. Address Setup Procedure

SW11

Outdoor unit interface P.C. board

2 3 4

SW12

1ON2 3 4

SW06

1ON2 3 4

SW07

ON ONON ON

2 3 4

SW09SW08

11 2 3 4

SW10

1 2 3 4

SW13

1ON2 3 4

SW14

1ON2 3 4

In this air conditioner, it is required to set up address to the indoor unit before starting operation. Set up the address according to the following setup procedure.

1. Set up address after wiring work.

2. Be sure to turn on the power in order of indoor unit → outdoor unit. If turning on the power in the reverse order, a check code [E19] (Error of No. of outdoor units) is output. When a check code is output, turn on the power again.

3. It requires maximum 10 minutes (Usually, approx. 5 minutes) to set up automatically an address to 1 line.

4. To set up an address automatically, the setup at outdoor side is necessary. (Address setup cannot be performed by power-ON only.)

5. To set up an address, it is unnecessary to operate the air conditioner.

6. Manual address setup is also available besides automatic setup. Automatic address : Setup from SW15 on the interface P.C. board of the header unit Manual address : Setup from the wired remote controller ∗ It is temporarily necessary to set the indoor unit and wired to 1 : 1.

(In group operation and in time without remote controller)

Automatic Address Setup

Without central control : To the address setup procedure 1 With central control : To the address setup procedure 2

(However, go to the procedure 1 when the central control is performed in a single refrigerant line.)

(Example)

Address setup procedure

Cable systematic diagram

Address setup procedure 1

1. Turn on power of indoor/outdoor units.

(In order of indoor

After approx. 1 minute, check that U. 1. L08 (U . 1. flash) is displayed in 7-segment display section on the interface P.C. board of the outdoor unit.

3. Push SW15 and start setup the automatic address. (Max. 10 minutes for 1 line (Usually, approx. 5 minutes))

When the count Auto 1 → Auto 2 → Auto 3 is displayed in 7-segment display section, and it changes from

U. 1. - - - (U. 1. flash) to U. 1. - - - (U. 1. light) , the setup finished.

5. When perform a central control, connect a relay connector between [U1, U2] and [U3, U4] terminals in the outdoor unit.

CAUTION

In case of central control in a single refrigerant line

To procedure 1

Outdoor

Indoor Indoor

Remote

controller

→→

→ Outdoor)

→→

remote controller

Remote

controller

Central

Outdoor

remote controller

Indoor Indoor

Remote

controller

Central

In case of central control over refrigerant lines

To procedure 2

Outdoor

Indoor Indoor

Remote

controller

Outdoor

remote controller

Indoor Indoor

Remote

controller

Central

Outdoor unit interface P.C. board

SW04

SW05 SW15

D600 D601 D602 D603D604

SW01

SW02 SW03

111

3 2, 4

U1 U2

For internal wiring between indoor and outdoor

U3 U4

For wiring of central control system

U5 U6

Unused in this model

REQUIREMENT

• When a group control is performed over the multiple refrigerant lines, be sure to turn on the power supplies of all the indoor units connected in a group in the time of address setup.

(Example)

Cabling systematic diagram

Group control over

multiple refrigerant lines

Outdoor

• If turning on the power for each refrigerant line to set up address, a header indoor unit is set for each line. Therefore , an alarm code “L03”

Indoor Indoor

(Duplicated header indoor units) is output in operation after address setup. In this case, change the group address from the wired remote controller for only one header unit is set up.

Remote

controller

Address setup procedure 2

1. Using SW13 and 14 on the interface P.C. board of the outdoor unit in each system, set up the system address for each system. (At shipment from factory: Set to Address 1)

Note) Be careful not to duplicate with other refrigerant line.

Line address switch on outdoor interface P.C. board (¡: Switch ON, × : Switch OFF)

Line

address

1 2 3 4 5 6 7 8

9 10 11 12 13 14

SW13 SW14

12341234

ЧЧЧЧЧ Ч ЧЧ¡ЧЧ Ч ЧЧЧ¡Ч Ч ЧЧ Ч ЧЧЧЧ Ч ЧЧ¡Ч Ч ЧЧЧ Ч

×××

¡¡

¡¡¡

¡¡×¡

××

¡¡

××

¡¡

× × ×

¡ ¡ ¡

Line

address

15 16 17 18 19 20 21 22 23 24 25 26 27 28

: Is not used for setup of system address. (Do not change setup.)

2. Check that the relay connectors between [U1U2] and [U3U4] terminals are come out in all the outdoor units to which the central control is connected. (At shipment from factory: No connection of connector)

3. Turn on power of indoor/outdoor.

(In order of indoor

→→

→ outdoor)

→→

4. After approx. 1 minute, check that 7-segment display is U.1.L08 (U.1. flash) on the interface P.C. board of the

outdoor unit.

5. Push SW15 and start setup the automatic address.

(Max. 10 minutes for 1 line (Usually, approx. 5 minutes))

When the count Auto 1

→→

→ Auto 2

→→

→ Auto 3 is displayed

→→

in 7-segment display section, and it changes from U. 1. - - - (U. 1. flash) to U. 1. - - - (U. 1. light) , the

setup finished.

7. Procedure 4. to 6. are repeated in other refrigerant lines.

SW13 SW14

12341234

For internal wiring between indoor and outdoor

×× ×

¡ ¡¡ ¡ ¡¡¡ ¡ ¡¡×¡ ¡ ¡¡¡¡ ¡ ¡¡ ¡ ¡¡¡×¡

U1 U2

For wiring of central control system

¡¡¡

¡¡¡¡

××××

×××

× ××¡× × ××× ×

U3 U4

××

¡¡

××

U5 U6

Unused in this model

× × ×

¡ ¡ ¡

Page 82

8. How to set up resistance of the end terminal

SET

UNIT

SET

UNIT No.

CODE No.

SET DATA

R.C. No.

Operation procedure

1 2 3 4 5 6 7

8 9 10 11

End

2, 5, 8

3, 6, 9

4, 7, 10

Data Item code

Outdoor

Header

Indoor Indoor Indoor

Line address 1

Indoor address

Group address

Outdoor

Indoor Indoor

Follower

1 2 2

1 3 2

2 1 2

2 2 2

Remote

controller

When all the address setups have finished in the same refrigerant circuit system, put the terminator resistor in the same central control line into one.

• Remain only SW30-2 of the outdoor unit with the least refrigerant line address number as it is ON. (With end terminal resistance)

• Set up SW30-2 of the other outdoor units to OFF. (Without terminator resistor)

9. Connect the relay connector between [U1U2] and [U3U4] of the outdoor unit for each refrigerant line.

10. Then set up the central control address.

(For the central control address setup, refer to the Installation manual of the central control devices.)

123

U3 U4

U1 U2 U5 U6

Relay

connector

U1 U2

U1 U2 U5 U6

Relay

connector

U1 U2

Connect short

after address setup

U1 U2

A B

Remote

controller

U3 U4

A B

Remote

controller

Outdoor unit Outdoor unit Outdoor unit

A B

Remote

controller

Individual Group

SW30

OFF

U1 U2

A B

Remote

controller

Individual Group

1 2

1 1 0

1 2 0

Before address setup

During setup of address

After address setup

Outdoor interface

P.C. board

SW13, 14 (Line address)

SW30-2

Terminator resistor of indoor/outdoor communi cation line/central control communication line

Relay connector

Indoor side (Automatic setup)

Line address Indoor unit address Group address

Relay connector — NOTE — Never connect a relay connector until address setup for all the refrigerant lines finishes; otherwise address cannot be correctly set up.

U3 U4

U1 U2 U5 U6

Relay

connector

U1 U2

A B

Remote

controller

U3 U4

SW30

U1 U2 U5 U6

Relay

connector

U1 U2

A B

Remote

controller

OFF after

address setup

Connect short

after address setup

2 1 1

Point

Outdoor unit interface P.C. board

1ON2

SW30

Manual address setup from remote controller

In case to decide an address of the indoor unit prior to finish of indoor wiring work and unpracticed outdoor wiring work (Manual setup from remote controller)

Arrange one indoor unit and one remote controller set to 1 by 1.

1ON2 3 4

SW11

SW12

ON ONON ON

1ON2 3 4

2 3 4

SW06

SW07

SW13

11 2 3 4

SW09SW08

1ON2 3 4

SW14

1 2 3 4

SW10

Turn on the power.

(Wiring example in 2 lines)

Push simultaneously buttons for 4 seconds or more.

LCD changes to flashing.

(Line address)

Using the setup temp. /

SET

+ CL +

buttons, set  to the item code.

Using the timer time / buttons, set up the line address.

U3 U4

U1 U2 U5 U6

Relay

connector

U1 U2

ON OFF

U1 U2

2 2 2

A B

U1 U2

A B

Remote

controller

U3 U4

SW30

OFF

U1 U2 U5 U6

Relay

connector

U1 U2

A B

Remote

controller

3 1

OFF after

address setup

Connect short

after address setup

3 1 0

Setup at shipment

from factory

Open

In the above example, under condition of no inter-unit wire of the remote controller, set the address after individual connecting of the wired remote controller.

Group address

Individual : 0000 Header unit : 0001 Follower unit : 0002

} In case of group control

(Match it with the line address on the interface P.C. board of the outdoor unit in the identical refrigerant line.)

Push

button.

(OK when display goes on.)

(Indoor address)

Using the setup temp. / buttons, set ! to the item code.

Using the timer time / buttons, set up the indoor address.

Push

button.

(OK when display goes on.)

(Group address)

Using the setup temp. / buttons, set " to the item code.

Using the timer time / buttons, set Individual = Follower unit =

Push

 , Header unit =  ,

 .

button.

(OK when display goes on.)

Push button.

Setup operation finished. (Status returns to normal stop status.)

Page 83

Note 1)

UNIT

When setting the line address from the remote controller, do not use address 29 and 30. The address 29 and 30 cannot be set up in the outdoor unit. Therefore if they are incorrectly set up, a check

code [E04] (Indoor/outdoor communication circuit error) is output.

Confirmation of indoor unit address and position by using the remote controller

[Confirmation of indoor unit address and the position]

1. When you want to know the indoor address though position of the indoor unit itself can be recognized;

<Procedure> (Operation while the air conditioner operates)

If it stops, push button.

Push

The unit No. 1-1 is displayed on the LCD. (Disappears after several seconds) The display ed unit No indicates the line address and indoor address. (If there is other indoor unit connected to the same remote controller (Group control unit), other unit No. is displayed every pushing

UNIT

button.)

button.

Operate

2. When you want to know position of the indoor unit using the address

• To confirm the unit numbers in a group control; <Procedure> (Operation while the air conditioner stops)

The indoor unit numbers in a group control are successively display ed, and the corresponding indoor fan is turned on. (Operation while the air conditioner stops)

Push + buttons simultaneously for 4 seconds or more.

• Unit No. is displayed.

• The fans of all the indoor units in a group control are turned on.

Every pushing unit numbers in the group control are successively displayed.

• The firstly displayed unit No. indicates the address of the header unit.

• Only fan of the selected indoor unit is turned on.

Push button to finish the procedure.

All the indoor units in group control stop.

button, the indoor

UNIT

End

1 2

Operation procedure

1 2

SET DATA

Operation procedure

1 2 3

• T o confirm all the unit numbers from an arbitrary wired remote controller; <Procedure> (Operation while the air conditioner stops)

The indoor unit No. and position in the same refrigerant line can be confirmed. An outdoor unit is selected, the indoor unit numbers in the same refrigerant line are successively displayed, and then its indoor unit fan is turned on.

Push the timer time + buttons simultaneously for 4 seconds or more.

Firstly, the line 1, item code )+ (Address Change) is displayed. (Select outdoor unit.)

Using address.

• The indoor unit address, which is connected to the refrigerant pipe of the selected outdoor unit is dis-

CODE No.

UNIT No.

UNIT

SET

CODE No.

UNIT No.

R.C. No.

UNIT

SET

End

played and the fan is turned on.

Every pushing numbers in the identical pipe are successively displayed.

• Only fan of the selected indoor unit operates.

[To select another line address]

Push CL button to return to procedure 2 ).

• The indoor address of another line can be successively confirmed.

Push button to finish the procedure.

Change of indoor address from remote controller

Change of indoor address from wired remote controller

• T o change the indoor address in individual operation (Wired remote controller : Indoor unit = 1 : 1) or

group control (When the setup operation with automatic address has finished, this change is available.)

<Procedure> (Operation while air conditioner stops)

Push simultaneously

(The firstly displayed unit No. indicates the header unit in group control.)

In group control, select an indoor unit No. to be changed by

(The fan of the selected indoor unit is turned on.)

Using the setup temp. / buttons, set

! to the item code.

Using the timer time / buttons, change the displayed setup data to a data which you want to change.

Push

Using the be changed at the next time. Repeat the procedure

that it is not duplicated.

After the above change, push confirm the changed contents.

If it is acceptable, push button to finish confirmation.

+ buttons, select the line

UNIT

button, determine the selected line

SET

button, the indoor unit

UNIT

+ CL + buttons for 4 seconds or more.

SET

button.

SET

button, select the unit No. to

UNIT

to 6 and change the indoor address so

button to

UNIT

SET DATA

SET

Operation procedure

1 2 3 4

5 6

button.

SET DATA

4 8

SET

Operation procedure

1 2 3 4

6 7 8

UNIT No.

R.C. No.

UNIT

End

UNIT No.

R.C. No.

UNIT

CODE No.

4 2

CODE No.

2, 6, 7

End

Page 84

• T o change all the indoor addresses from an arbitrary wired remote controller;

U3 U4

U1 U2 U5 U6

U1 U2

A B

Outdoor unit

Relay connector

Remote

controller

U1 U2

A B

Remote

controller

U3 U4

U1 U2 U5 U6

U1 U2

A B

Remote

controller

U1 U2

A B

U3 U4

U1 U2

U1U3U2

U5 U6

U1 U2

A B

Remote

controller

Central control

device

Unit of which address is to be returned to the initial status

Outdoor unit Outdoor unit

(When the setup operation with automatic address has finished, this change is available.)

Contents: Using an arbitrary wired remote controller, the indoor unit address can be changed for each same

∗∗

∗ Change the address in the address check/change mode.

∗∗

<Procedure> (Operation while air conditioner stops)

1 2

4 5

refrigerant line

Push the timer time + buttons simultaneously for 4 seconds or more.

Firstly, the line 1, item code AC (Address Change) is displayed.

Using Push

• The indoor unit address, which is connected to the refrigerant pipe of the selected outdoor unit is displayed and the f an is turned on.

First the current indoor address is displayed on the setup data. (Line address is not display ed.)

+ buttons, select the line address.

UNIT

button.

SET

The indoor address of the setup data moves up/down by the timer time / buttons.

Change the setup data to a new address.

Push Every pushing

button to determine the setup data.

SET

button, the indoor unit numbers in the identical pipe are successively

UNIT

displayed. Only fan of the selected indoor unit operates.

Repeat the procedure 4 to 6 and change all the indoor addresses so that they are not duplicated.

Push

(All the displays on LCD go on.)

Push button to finish the procedure.

SET

button.

Clearance of address (Return to status (Address undecided) at shipment from factory)

Method 1

An address is individually cleared from a wired remote controller. “0099” is set up to line address, indoor address, and group address data from the remote controller. (For the setup procedure, refer to the abovementioned address setup from the remote controller .)

Method 2

Clear the indoor addresses in the same refrigerant line from the outdoor unit.

1. Turn off the power of the refrigerant line to be returned to the status at shipment, and change the outdoor unit to the following status.

1) Remove the relay connector between [U1U2] and [U3U4].

(If it has been already removed, leave it as it is.)

2) Turn on SW30-2 on the interface P.C. board of the outdoor unit if it is OFF.

(If it has been already ON, leave it as it is.)

UNIT No.

R.C. No.

UNIT

CODE No.

SET DATA

SET

Here, if the unit No is not called up, the outdoor unit in this line does not exist.

Push procedure 2 .

button, and then select a line according to

Cancel of line selection

4 8

5, 7

To finish the setup

Operation procedure

1 2 3 4 5

SET DATA

SET

6 7 8

UNIT No.

R.C. No.

UNIT

CODE No.

End

2. Turn on the indoor/outdoor power of which address is to be cleared. After approx. 1 minute, chec k that “U.1. - - -” is displayed, and then ex ecute the following operation on the interface P.C. board of the outdoor unit of which address is to be cleared in the refrigerant line.

SW01 SW02 SW03

212

222

3. After “A.d. c.L.” has been displayed on 7-degment display, return SW01/SW02/SW03 to 1/1/1.

4. When the address clearing has correctly finished, “U.1.L08” is displa yed on 7-degment display after a while. If “A.d. n.G.” is displayed on 7-degment display, there is a possibility which is connected with the other refrigerant line. Check again the relay connector between [U1U2] and [U3U4] terminals.

NOTE) Be careful that the other refrigerant line address may be also cleared if clearing operation is not

correctly executed.

5. After clearing of the address, set up an address again.

After checking that “A.d.buS” is displayed on 7-degment display, and then push SW04 for 5 seconds or more.

After checking that “A.d.nEt” is displayed on 7-degment display, and then push SW04 for 5 seconds or more.

SW04

Address which can be cleared

Line + Indoor + Group address

Central control address

Page 85

In case of increase the address-undefined indoor units (Extension, etc.)

Center unit

U1U3U2

U1U3U2 U5 U6

U1U3U2

U1AU2

U5 U6

Header unit (A)

Outdoor unit

Indoor unit

Central control units

Line address = 2

Other refrigerant line

Earth

3-phase 380–415V, 50Hz Leak interception

Main switch

1-phase 220–240V, 50Hz Leak interception

Main switch

Remote

controller

U1AU2

Remote controller

U1AU2

Remote

controller

U1AU2

Center unit (A)Center unit (A)

Header unit (A)

Line address = 1

3 2

If set up the indoor address of which address is undefined accompanied with extension of indoor units, replacement of P.C. board, etc, f ollow to the methods below.

Method 1

Set up an address individually from a wired remote controller. (Line address, Indoor address, Group address, Central address) For the setup method, refer to the above “Manual address setup from remote controller”.

Method 2

Set up an address from the outdoor unit. ∗ Leave the address of the unit of which address has been already set up as it is.

Set up an address only to the unit of which address is undefined.

The addresses are allocated from the low number.

Setup procedure

Arrange the outdoor units in the refrigerant line to which indoor units are added. (Figure below)

1. Remove the relay connector between [U1U2] and [U3U4].

2. Turn on SW30-2 on the interface P.C. board at outdoor unit side if it is OFF. ∗ Turn off the power, and then execute the operation.

Outdoor unit

Disconnected

U3 U4

U1 U2 U5 U6

Outdoor unit Outdoor unit

U3 U4

U1 U2 U5 U6

Center unit

U1 U2

U3 U4

U5 U6

Central control

device

U1U3U2

8-4-4. Check after Address Setup When Central Control System is Connected

When the central control system is connected, check the following setup has finished after address setup.

U1 U2

controller

A B

Remote

U1 U2

A B

Remote

controller

U1 U2

A B

Remote

controller

Added indoor unit

U1 U2

A B

U1 U2

A B

Remote

controller

3. Turn on the indoor/outdoor power of which address is to be set up . After approx. 1 minute, check that “U.1. - - -” is displayed on 7-segment display.

4. Execute the following operation on the interface P.C. board of the outdoor unit.

SW01 SW02 SW03

2142

“AUTO1” → “AUTO2” → “AUTO3” … “AUTO9” is counted and displayed on 7-degment display. Return the SW01, 02, 03 setup as before.

5. When “U.1. - - -” is displayed on 7-segment display, the setup operation finished. Turn off the indoor/outdoor power .

After checking that “ ” is displayed on 7-segment display, and then push SW04 for 5 seconds or more.

SW04

6. Return the following setup as before.

• Relay connector

• SW30-2

• SW01, 02, 03

Relay connector

Terminator resistor

Line address

Main check items

1) Is relay connector of the outdoor unit connected after address setup?

2) Is the end resistance (SW30-2) of the outdoor unit with the least address number (in the central control line) turned on?

3) Are the terminal resistance (SW30-2) of the outdoor units in except the line of which central control line address is the smallest turned off?

4) Are not addresses in the line address (SW13, SW14) duplicated in each refrigerant line?

Check

NOTE) The above table does not describe all the electric cablings. F or details, refer to each installation manual

for outdoor unit, indoor unit, remote controller, and optional devices.

Page 86

8-5. Troubleshooting in Test Operation

If the phenomena appear, such as a check code is output or the remote controller is not accepted in power-ON after cabling work or in address setup operation, the following causes are considered.

8-5-1. A check Code is Displayed on the Remote Controller

Check code

displayed on

remote controller

E04

Outdoor unit

7-segment

display

E19-00

L08

E08-XX

Cause

Outdoor power is formerly turned on.

There is none of outdoor terminator resistor, or there are two or more resistances. (After address setup)

After address was decided, all the indoor units do not correctly response after power-ON in outdoor unit.

Address setup error

• Only line addresses of the connected indoor units are undefined.

• The outdoor line address and the line addresses in all indoor units do not match.

• The indoor addresses are duplicated. (Units except those displaying E04 are duplicated.)

• A header unit is not set up in a group. (Except group displaying E04)

Duplication of indoor addresses. (Address No in which sub-code of the check code are duplicated)

SW30

Countermeasures

Turn on the power again. (In order of Indoor → Outdoor)

Check SW30 bit 2 of the outdoor unit. No connection between multiple refrigerant lines:

SW30 bit 20N Connection between multiple refrigerant lines:

SW30 bit 2 of the connected outdoor unit is turned on only in one line.

Check and modifies disconnection of indoor/outdoor communication line.(Communication line between outdoor unit and the leading indoor unit)

Check influence of communication noise. Set up address again.

Set up address again.

E16

E25

L04

L05 (*)

L06

L08

E07

E06

E16-XX

E25

L04

L06

L08

There is none of outdoor terminal resistance, or there are two or more resistances. (After address setup, when terminal resistance setup is changed after power-ON.)

Transmission circuit error at interface side (P.C. board failure)

After address setup, communication from all the indoor units interrupted under condition that a normal operation can be performed.

Exceeded No of connected indoor units or exceeded capacity.

Duplication of outdoor addresses. (Only when outdoor address was manually set up)

Duplication of outdoor line addresses

• Line address setup error, occurred after connection between U1, U2 and U3, U4 connectors

Duplicated of indoor units with priority There are two or more indoor units set up with

priority . Address setup error

• Only indoor addresses of all the connected indoor units are undefined.

SW30

Check SW30 bit 2 of the outdoor unit. No connection between multiple refrigerant lines:

SW30 bit 20N Connection between multiple refrigerant lines:

SW30 bit 2 of the connected outdoor unit is turned on only in one line.

Replace the interface P.C. board.

Check and correct disconnection of indoor/outdoor communication line.(Communication line between outdoor unit and the leading indoor unit)

Check influence of communication noise. Adjust No of connected indoor units or capacity.

Do not use a manual setup for outdoor address.

Modify line address setup of the outdoor unit between lines. (Set up SW 13 and 14 on the interface P.C. board.)

The Heat Recovery Multi is not set up on priority.

Set up address again.

(∗) [L05]: Displayed on the indoor unit set up with priority

[L06]: Displayed on the indoor unit except one set up with priority

Page 87

8-5-2. Operation from remote controller is not accepted and a check code is dis-

played on 7-segment display of the interface P.C. board of the outdoor unit.

Remote controller

status

No response

7-segment

display of

outdoor unit

L08

E19-00

E20-01

Cause

Line addresses and indoor addresses of all the connected indoor units are unset.

There is no outdoor unit of group control.

Indoor unit power is not turned on.

Indoor/outdoor communication line is not correctly connected to the outdoor unit. (Fig. 1) (Indoor/outdoor cannot communicate before address setup.)

There is none of outdoor terminal resistance, or there are two or more resistances. (Before address setup)

Address setup is performed with connecting indoor/outdoor communication line between outdoor units. (Fig. 3)

Address setup is performed under condition of connecting between multiple refrigerant lines. (Fig. 3)

SW30

Countermeasures

Set up addresses.

Set up group address.

Turn on the power again. (In order of indoor → outdoor)

Correct wiring.

Check SW30 bit 2 of the outdoor unit. No connection between multiple

refrigerant lines: SW30 bit 2 0N Connection between multiple

refrigerant lines: SW30 bit 2 of the connected outdoor unit is turned on only in one line.

Correct wiring.

8-5-3. There is no display of a check code on 7-segment display on the interface

P.C. board of the outdoor unit though there is indoor unit which does not accept the operation from the remote controller.

Remote controller

status

No response

No display on remote controller (No line is output.)

7-segment

display of

outdoor unit

None

Cause

Communication line is not connected between indoor and outdoor.

Line and indoor addresses are unset. (Unit which does not response to remote controller)

The power of the header unit of the group is not turned on in indoor group control. (Unit which does not response to remote controller)

Group address is set up to follower unit in the individual control. (Unit which does not response to remote controller)

The power is not turned on. (Unit which is not displayed on remote controller)

Remote controller is not connected with cable. (Unit which is not displayed on remote controller)

Miscabling of remote controller (Unit which is not displayed on remote controller)

Countermeasures

Modify wiring.

Set up address.

Turn on the power.

Set [0] to group address in case of individual control.

Turn on the power.

Correct wiring.

Remote controller communication circuit error (Unit which is not displayed on remote controller)

If 230V is incorrectly applied to the remote controller terminal, the remote controller communication circuit fails.

Remove FASTON terminal connected to remote controller terminals (A/B), and check the voltage. If voltage is not applied, replace P.C. board. (15 to 18V usually)

Page 88

8-5-4. In check for No. of connected outdoor units and connected Indoor units

after address setup, diminished No. of connected units displayed. (There are outdoor/indoor units which do not operate in a test operation.)

Status

Number of connected indoor units is short.

Number of outdoor units connected to group is short in group operation from remote controller.

Miswiring of communication line between indoor units or unconnected cable (Fig. 3) (Address setup operation has finished without recognition of miswired indoor unit.)

Remote controller is not connected with wire. Miscabling of remote controller

Remote controller communication circuit error If 230V is incorrectly applied to the remote

controller terminal, the remote controller communication circuit fails.

(Fig. 1)

Remote

controller status

Outdoor unit

7-segment display

Cause

Countermeasures

After modification of wiring, set up address again and check No. of the connected indoor units.

Using the main remote controller connected to a group, start a test operation, specify the unit which does not operate (Unit unconnected to group), and then check wiring.

Using the main remote controller connected to a group, start a test operation, specify the unit which does not operate (Unit unconnected to group).

Remove Fasten receptacle connected to remote controller terminals (A/B), and check the voltage. If voltage is not applied, replace P.C. board. (15 to18V in normal time)

Miswiring example

No response

(Fig. 2)

Remote

controller status

No response

(Fig. 3)

Outdoor unit

7-segment display

Status

E19-00

E20-01

Outdoor unit

U3/U4

Indoor unit

Outdoor unit

U1/U2

Indoor unit

Outdoor unit

U1/U2

Indoor unit

Outdoor unit

U5/U6

Indoor unit

Miswiring example

Outdoor unit

Indoor unit

Miswiring example

U1/U2

Indoor unit

Outdoor unit

U1/U2

Number of connected indoor units is short.

Outdoor unit

U1/U2

Indoor unit

A/B

Indoor unit

Page 89

8-6. Test Operation Check

8-6-1. Fan Check

START

Push [START/STOP] button.

Select the operation mode [FAN].

Is air discharged from the

discharge port of the indoor unit?

YES

Is there no abnormal sound?

YES

Normal

Check all indoor unit in turn.

When an error code has been displayed on the remote controller, remove the error cause referring to “Check code and check position displayed on remote controller and outdoor unit”.

Check indoor fan, fan motor, and fan circuit.

Check positions around the fan.

8-6-2. Cooling/Heating Test Operation Check

The cooling/heating test operation check can be performed on both remote controller and outdoor interface P.C. board.

1. Test operation start/stop operation <Test operation from remote controller>

Wired remote controller : Refer to the lower items in “Test operation” of wired remote controller. Wireless remote controller : Refer to the lower items in “Test operation” of wireless remote controller.

Wired remote controller

When pushing button for 4 seconds or more, [TEST] is displayed in the display section and the mode enters in test operation mode.

1, 5

TEST

Push button.

Using button, select an operation mode [COOL] or [HEAT].

• Do not use operation mode other than [COOL] or [HEAT].

• Temperature adjustment is unavailable during test operation.

• Error is detected as usual.

When the test operation has finished, push button to stop the operation.

(The same display as that in procedure 1) appears in the display section.)

Push button to clear the test operation mode.

([TEST] display in the display section disappears and the status returns to the normal stop status.)

SET

2, 4

UNIT

TEST

Page 90

Wireless remote controller (Except 4-way Air Discharge Cassette type and Under Ceiling type)

Remove a screw which fix es the serial plate of the receiver part on the wireless remote controller.

Remove the nameplate of the receiver section by inserting a minus screwdriver, etc into the notch at the bottom of the plate, and set the Dip switch to [TEST RUN ON].

Execute a test operation with button on the wireless remote controller.

• , , and LED flash during test operation.

• Under status of [TEST RUN ON], the temperature adjustment from the wireless remote controller is inv alid. Do not use this method in the operation other than test operation because the equipment is damaged.

Use either COOL or HEAT operation mode for a test operation.

* The outdoor unit does not operate approx. 3 minutes

after power-ON and operation stop.

After the test operation finished, stop the air conditioner from the wireless remote controller, and return Dip switch of the sensor section as before.

(A 60-minutes timer clearing function is attached to the sensor section in order to prev ent a continuous test operation.)

M4 × 25 screw (2 pieces)

Receiver unit

Spacer

Small screw

Wireless remote controller (4-way Air Discharge Cassette type)

Turn off power of the air conditioner.

Remove the adjust corner cap attached with sensor section from the ceiling panel. For removing method, follow to the installation man ual attached to the ceiling panel. (Be careful to handle the sensor section because cables are connected to the sensor section.)

Remove the sensor co ver from the adjust corner cap. (1 screw)

Change Bit [1: TEST] of the switch [S003] on the sensor P.C. board from OFF to ON.

Mount the sensor cover and attach the adjust corner cap with sensors to the ceiling panel. Turn on power of the air conditioner.

Push button of the wireless remote controller, and select an operation mode [COOL] or [HEAT] with section flash during the test operation.)

• Do not use operation mode other than [COOL] or [HEAT].

• Error is detected as usual.

When the test operation has finished, push button to stop the operation.

Turn off power of the air conditioner.

Change Bit [1] of the switch [S003] on the sensor P.C. board from ON to OFF.

Attach the adjust corner cap with sensors to the ceiling panel.

button. (All the display lamps of the wireless remote controller sensor

Sensor cover

Adjust corner cap

Notch

Nameplate

S003

Bit 1 : OFF ON

4321

Sensor P.C. board

Refer to “8-7-2. Function of Start/Stop the Indoor Unit fr om Outdoor Unit” in “8-7. Service Support Function”. NOTE) The test operation returns to the normal operation after 60 minutes have passed.

Page 91

In case of wireless remote controller (for under ceiling type)

Procedure

4 5

Description

Turn on power of the air conditioner.

The operation is not accepted for 5 minutes when power has been turned on at first time after installation, and 1 minute when power has been turned on at the next time and after. After the specified time has passed, perform a test operation.

Push [Start/Stop] button and change the operation mode to [COOL] or [HEAT] with [Mode] button. Then change the fan speed to [High] using [Fan] button.

Test cooling operation Test heating operation

Set temperature to [18°C] using [Temperature set] Set temperature to [30°C] using [Temperature set] button. button.

After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately push [Temperature set] button to set to [19°C] push [Temperature set] button to set to [29°C].

After checking the receiving sound “Pi”, immediately After checking the receiving sound “Pi”, immediately push [Temperature set] button to set to [18°C]. push [Temperature set] button to set to [30°C].

Then repeat the procedure 4 → 5 → 4 → 5 . After approx. 10 seconds, all the display lamps on the sensor part of wireless remote controller, [Opera-

tion] (Green), [Timer] (Green), and [Ready] (Yellow) flash and the air conditioner starts operation.

If the lamps do not flash, repeat the procedure

and after.

Test cooling operation:

Start → 18°C → 19°C → 18°C → 19°C → 18°C → 19°C → 18°C → (Test operation) → Stop

Test heating operation:

Start → 30°C → 29°C → 30°C → 29°C → 30°C → 29°C → 30°C → (Test operation) → Stop

After the test operation, push [Start/Stop] button to stop the operation.

Be sure to set the air speed to [High]

3, 4, 5, 6 2, 7

Page 92

2. Test operation

START

Test operation for one indoor unit

Is cold air or hot air discharged?

Test operation for all units in turn

Operate all the indoor units at once.

YES

Operation start

YES

Is air circulation good?

YES

Refer to “Test operation procedure” of indoor remote controller.

The operation does not start approx. 3 minutes after power-ON or operation stop.

(NOTE)

After power-ON, it may require Max. 10 minutes to start the operation due to the initial communication of the system.

Check operation status of the compressor.

Check direction of the flap.

Execute a test operation using “Function of start/stop the indoor unit from outdoor unit” in “Service support function”.

(NOTE 1)

Is the temperature difference

between suction and discharge good?

YES

Is the operating voltage correct?

(Rated voltage ±10%)

YES

(NOTE 2)

Is the operating current normal?

YES

(NOTE 3)

Is the operating pressure normal?

YES

Normal

• Check power voltage of the main power supply.

• Check cable size of the power supply.

• Check temperature load in indoor/outdoor.

• Check pipe length and refrigerant amount.

• Check operating Hz of compressor.

• Check abnormal sound in outdoor unit. (Abnormal sound, etc of compressor and others)

Page 93

(NOTE 1) Criterion for difference between suction and discharge temperature

1. Cooling After operation for minimum 30 minutes with [COOL] mode , if there is the dry bulb temper ature difference Temperature difference:8°C or more between suction and discharge air of the indoor unit.

(In Max-Hz operation)

2. Heating After operation for minimum 30 minutes with [HEAT] mode, if there is the dry bulb temperature difference

Temperature difference:15°C or more between suction and discharge air of the indoor unit. (In Max-Hz operation)

∗ Consider that the temperature difference temperature difference may diminish in cases of system in which

the connected indoor capacity exceeds 100%, a long pipe length, a large difference.

(NOTE 2) Criterion for operating power current

For a test operation (All the indoor units operate), it is normal when the power current is under the following v alues .

Outdoor unit

8HP 10HP 12HP

Current value

18 21 22

(Unit: A)

(NOTE 3) Criterion for cycle status

1. Refrigerating cycle under standard condition The refrigerating cycle under standard cooling and heating condition is as follows:

10HP

MMY-MAP1001FT8

Cool standard Heat standard

Pressure (MPa)

Pipe surface temp (°C)

Number of compressor rotations

Air temp condition (DB/WB) (°C)

(rps)

High (Pd) Low (Ps) Discharge (TD) Suction (TS1) Indoor heat exchanger (TC) Outdoor heat exchanger (TE1) Liquid temp (TL) Compressor 1 Compressor 2 Indoor Outdoor

∗ This compressor is driven with 4-pole motor. The value of the compressor frequency (Hz) measured by a clamp meter is

two times of the rotation count (rps) of the compressor.

∗ This data is the cycle data under condition of the standard pipe length and two 4-way Air Discharge Cassette type air

conditioners connected. Data changes according to installed pipe length, combination of indoor units, or connected indoor capacity.

∗ For a compressor, the left side is 1 and the right side is 2 viewed from the front side.

Even if two compressors operate, the frequency difference may be a little set as measures against resonance.

∗ The temperature of indoor heat exchanger (TC) indicates TCJ sensor temperature in cooling time, and TC2 sensor

temperature in heating time respectively.

3.1 2.9

0.8 0.7 86 90

846 43 1 36 36 79 75 79 75

27/19 20/–

35/– 7/6

2. Criterion for operating pressure General criterion is as follows:

All cooling operaton

All heating operation

High pressure : 2.0 to 3.2MPa Low pressure : 0.5 to 0.9MPa High pressure : 2.5 to 3.3MPa Low pressure : 0.5 to 0.7MPa

Using the rotary switch on the outdoor unit I/F, the operating pressure, cycle temperature, and compressor rotation count can be checked on 7-segment display.

Refer to “Outdoor refrigerant circuit system data display” and “Indoor cycle data display” in Section 9. Tr oubleshooting.

Indoor :18 to 32°C Outdoor :25 to 35°C Indoor :15 to 25°C Outdoor : 5 to 10°C

When all the units operate in cooling mode

When all the units operate in heating mode

Page 94

8-7. Service Support Function

8-7-1. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit

The following functions of the indoor unit can start or stop by the switches on the interface P.C. board of the header unit.

No.

Function

All cooling test operation

All heating test operation

Batch start

Changes the mode of all the connected indoor units collectively to cooling test operation.

Note) Control operation same as usual test

operation from remote control is performed.

Changes the mode of all the connected indoor units collectively to heating test operation.

Note) Control operation same as usual test

operation from remote control is performed.

Starts all the connected indoor units collectively.

Note) The contents follow to the setup of

remote controller.

Outline

Setup/Release

[Setup] Push SW04 for 2 seconds or more with SW01”2”, SW02”5”, SW03”1”.

[Release] Return SW01, SW02, SW03 to “1”.

[Setup] Push SW04 for 2 seconds or more with SW01”2”, SW02”6”, SW03”1”.

[Release] Return SW01, SW02, SW03 to “1”.

[Setup] Push SW04 for 2 seconds or more with SW01”2”, SW02”7”, SW03”1”.

[Release] Return SW01, SW02, SW03 to “1”.

7-segment display

Section A Section B

[C ] [ –C]

Section A Section B

[H ] [ –H]

Section A Section B

[CH] [ 11]

[ 11] is displayed on Section B for 5 seconds.

Batch stop

Individual start

Individual stop

Individual test operation

Stops all the connected indoor units collectively.

Starts the specified indoor unit. Notes)

• The contents follow to the setup of remote controller.

• The other indoor units keep the status as they are.

Stops the specified indoor unit. Note) The other indoor units keep the status

as they are.

Operates the specified indoor unit. Note) The other indoor units keep the status

as they are.

[Setup] Push SW05 for 2 seconds or more with SW01”2”, SW02”7”, SW03”1”.

[Release] Return SW01, SW02, SW03 to “1”.

[Setup] Push SW04 for 2 seconds or more set SW01 “16” and set SW02 and SW03 to address No. (1 to 64) to be started.

[Release] Return SW01, SW02, SW03 to “1”.

[Setup] Push SW05 for 2 seconds or more set SW01 “16” and set SW02 and SW03 to address No. (1 to 64) to be stopped.

[Release] Return SW01, SW02, SW03 to “1”.

[Setup] Push SW04 for 10 seconds or more set SW01 “16” and set SW02 and SW03 to address No. (1 to 64) to be operated.

[Release] Return SW01, SW02, SW03 to “1”.

Section A Section B

[CH] [ 00]

[ 00] is displayed on Section B for 5 seconds.

Section A Section B

[ ] [ ]

Section A: Displays the corresponding indoor address.

Section B: Displays [ 11] for 5 seconds from operation-ON.

Section A Section B

[ ] [ ]

Section A: Displays the corresponding indoor address.

Section B: Displays [ 00] for 5 seconds from operation-OFF.

Section A Section B

[ ] [ ]

Section A: Displays the corresponding indoor address.

Section B: Displays [ FF] for 5 seconds from test operation-ON.

NOTE 1) This star t/stop function only sends

the signals from the outdoor unit to the indoor unit, such as start, stop, operation mode, etc. It does not resend the signals even if the indoor unit does not follow the sent signals.

NOTE 2) The above controls are not used

during abnormal stop.

Interface P.C. board

7-segment display [A] 7-segment display [B]

SW04 SW05

SW01 SW02 SW03

Page 95

1. All cooling test operation function

This function is provided to change collectively the mode of all the indoor units connected to the same system for the cooling test operation mode . Using switches on the interface board of the outdoor unit.

Power ON

Set SW01 on the interface P.C. board of the outdoor unit to [2], Sw02 to [5], and SW03 to [1] respectively. ([C ] is displayed on 7-segment display [A].)

Push SW04 on the interface P.C. board of the outdoor unit for 2 seconds or more.

[TEST] is displayed on the remote controller of the indoor unit to be operated. Check that “ – C ” is displayed on 7-segment display [B] on the interface P.C. board of the outdoor unit.

Return SW01, SW02, SW03 on the interface P.C. board of the outdoor unit to [1], [1], [1] respectively or push the push-switch SW05 for 2 seconds or more.

Be sure to turn on power at the indoor side before power-ON of outdoor unit.

Start

[A]

[C ]

[B]

[ –C]

Operation check

Stop/End

2. All heating test operation function

This function is provided to change collectively the mode of all the indoor units connected to the same system for the heating test operation mode. Using switches on the interface board of the outdoor unit.

Power ON

Be sure to turn on power at the indoor side before power-ON of outdoor unit.

Set SW01 on the interface P.C. board of the outdoor unit to [2], Sw02 to [6], and SW03 to [1] respectively. ([H ] is displayed on 7-segment display [A].)

Push SW04 on the interface P.C. board of the outdoor unit for 2 seconds or more.

[TEST] is displayed on the remote controller of the indoor unit to be operated. Check that “ – H ” is displayed on 7-segment display [B] on the interface P.C. board of the outdoor unit.

Return SW01, SW02, SW03 on the interface P.C. board of the outdoor unit to [1], [1], [1] respectively or push the push-switch SW05 for 2 seconds or more.

Interface P.C. board

[A]

[ H ]

7-segment display [A] 7-segment display [B]

[B]

[ –H]

SW04 SW05

Start

Operation check

Stop/End

SW01 SW02 SW03

NOTE) The test operation returns to the normal operation after 60 minutes.

Page 96

3. Batch start/stop (ON/OFF) function

This function is provided to start/stop collectively all the indoor units connected to the same system by using switches on the interface board of the outdoor unit.

Power ON

Set up the operation mode of the remote controller. (If it is not set up, the operation continues with the current mode.) (FAN/COOL/HEAT)

Set on the interface P.C. board of the outdoor unit SW01 to [2], Sw02 to [7], and SW03 to [1] respectively. ([CH ] is displayed on 7-segment display [A].)

Push SW04 on the interface P.C. board of the outdoor unit for 2 seconds or more.

The indoor unit to be started operates.

Be sure to turn on power at the indoor side before power-ON of outdoor unit.

If an error is already displayed under condition of SW01 [1], SW02 [1], SW03 [1], return the status to normal one according to troubleshooting and then execute a test operation.

The unit which is not given with priority by heating priority control, cooling priority control, and selection of cooling or heating mode is not operated.

In this case, or is displayed on the remote controller.

Start

Operation check If the discharge temperature does not change though COOL or HEAT has been set up from the

( )

remote controller, misconnection is considered.

Push the push-switch SW05 on the interface P.C. board of the outdoor unit for 2 seconds or more.

After test operation, return the rotary switches SW01, SW02, and SW03 on the interface P.C. board of the outdoor unit to [1], [1], [1] respectively.

Stop

End

Page 97

4. Individual start/stop (ON/OFF) individual test operation function

This function is provided to start/stop (ON/OFF) individually each indoor unit connected to the same system by using switches on the interface board of the outdoor unit.

Set SW01 [16] and set SW02, SW03 to indoor address No. (1 to 64) to be started (Refer to the following table∗) - only the setup indoor unit starts operation.

(In the rotary switches of the indoor unit which operates in a group by the remote controller, the follower unit cannot be individually started or stopped. In this case, [ – – ] is displayed on 7-segment display [B] on the interface P.C. board of the outdoor unit.)

Power ON

Set up the operation mode of the remote controller. (If it is not set up, the operation starts with the current mode.)

Match the rotary switch on the interface P.C. board of the outdoor unit

corresponding indoor unit

Push the push-switch SW04 on the interface P.C. board of the outdoor unit for 2 seconds or more. (If pushing this switch continuously for 10 seconds or more, the operation changes to the individual test operation.)

with in the following table.

(7-segment display)

[A]

[ ]

Address display of

[ ]

[ 00] is displayed for

5 seconds after operation-ON.

Be sure to turn on power at the indoor side before power-ON of outdoor unit.

[B]

Address display of

corresponding indoor unit

[A]

[ ]

If an error is already displayed under condition of SW01 [1], SW02 [1], SW03 [1], return the status to normal one according to troubleshooting and then execute a test operation.

The unit which is not given with priority by heating priority control, cooling priority control, and selection of cooling or heating mode is not operated. In this case, or is displayed on the remote controller.

(7-segment display)

[ 11] is displayed for

5 seconds after operation-ON.

(For individual test operation,[ FF] is displayed.)

[B]

[ ]

Start

Operation check

The indoor unit to be started operates.

Push the push-switch SW05 on the interface P.C. board of the outdoor unit for 2 seconds or more.

(7-segment display)

[A]

[ ]

Address display of

corresponding indoor unit

After test operation, return the display select switches SW01, SW02, and SW03 on the interface P.C. board of the outdoor unit to [1], [1], [1] respectively.

[ 00] is displayed for

5 seconds after operation-ON.

[B]

[ ]

End

If the discharge air temperature does not change though COOL or HEAT has been set up from the

( )

remote controller, misconnection is considered.

SW01 SW02 SW03 Units to be operated

Address 1

16 1 to 16 1

16 1 to 16 2

16 1 to 16 3

16 1 to 16 4

to individually Address 16

Address 17 to individually Address 32

Address 33 to individually Address 48

Address 49 to individually Address 64

NOTE) The individual test operation returns to the normal operation after 60 minutes.

} } } }

In individual start/stop

Page 98

8-7-2. Error Clearing Function

1. Clearing from the main remote controller [Error clearing in outdoor unit]

Error of the outdoor unit is cleared by the unit of one refrigerant circuit system to which the indoor units operated by the remote controller. (Error of the indoor unit is not cleared.)

For clearing errors, the service monitor function of the remote controller is used.

Change the mode to service monitor mode by pushing 4 seconds or more.

Using / buttons, set “FF” to item code. The display in Section A in the following figure is counted with interval of 5 seconds as

“

# ”

When the count arrives “ ”, the error is cleared. ∗ However, counting from “# ” is repeated on the display.

When button is pushed, the status returns to the normal status.

→→

→ “" ”

→→

→ “! ”

→→

→ “ ”

→→

→ “ ”

→→

→ “ ”.

→→

+ buttons simultaneously for

Operation procedure

1 2 3

The status returns to the normal status.

Section A

3 1

[Error clearing in indoor unit]

SET

CODE No.

UNIT No.

R.C. No.

UNIT

Error in the indoor unit is cleared by button on the remote controller. (Only error of the indoor unit connected with operating remote controller is cleared.)

Page 99

2. Clearing from the interface P.C. board

Using the switches on the interface P.C. board, this function is to clear the currently detected error for each refrigerant circuit system without resetting the power supply.

(→ Restart of error detection) Errors in both outdoor and indoor units are once cleared.

Set the rotary switches on the interface P.C. board of the outdoor unit to the following setting.

SW01=[2] SW02=[16] SW03=[1]

Push the push-switch SW04 on the interface P.C. board of the outdoor unit for 5 seconds or more.

[ C L] is displayed in 7-segment display [B] on the P.C. board (for 5 seconds), and the error is completely cleared.

7-segment display [A] 7-segment display [B]

Interface P.C. board

(7-segment display)

[A]

[ E ]

(7-segment display)

[A]

[ E ]

Push switch SW04

Push

switch

SW05

[B]

[ ]

[B]

[ C L ]

SW01 SW02 SW03

3. Clearing of error check code by power reset

This function is provided to clear error in a refrigerant circuit system by resetting the power of all the outdoor and the indoor units.

(→ Restart of error detection) As same as the clearing method on the interface P.C. board, errors of both the outdoor and the indoor units

are once cleared.

1. Be sure to reset power of both the outdoor and the indoor units.

NOTE) After power reset, it requires usually 3 minutes to power-on due to the initial communication of the

system. In same cases, it requires Max. 10 minutes.

Page 100

8-7-3. Remote Controller Distinction Function

This function is provided to distinguish the remote controller connected from the outdoor unit to the indoor unit for a refrigerant circuit system using switches on the interface P.C. board of the outdoor unit.

Power ON

Set the display select switches on the interface P.C. board of the outdoor unit as follows:

SW01 SW02 SW03 [1]

Push the push-switch SW04 on the interface P.C. board of the outdoor unit for 2 seconds or more.

display of the connected remote controller flashes.

Push the push-switch SW05 on the interface P.C. board of the outdoor unit for 2 seconds or more.

[2] [4]

Be sure turn on the power of the indoor unit prior to the power of the outdoor unit.

(7-segment display)

[A]

[ A 1 ]

(7-segment display)

[A]

[ A 1 ]

Check the connected remote controller.

End Other end conditions:

1. 10 minutes passed for sending operation

2. SW01, SW02, or SW03 changed to other position.

[B]

[ ]

Operation

[A]

[ FF ]

Interface P.C. board

7-segment display [A] 7-segment display [B]

SW04 SW05

SW01 SW02 SW03

100