Toshiba MMD-AP0071SPH-C, MMD-AP0151SPH-C, MMD-AP0091SPH-C, MMD-AP0121SPH-C, MMD-AP0181SPH-C Service Manual

...

FILE NO. A05-006

PRINTED IN JAPAN, Jul.,2005 ToMo

SERVICE MANUAL

MMD-AP0071SPH (-C, -K), MMD-AP0091SPH (-C, -K), MMD-AP0121SPH (-C, -K), MMD-AP0151SPH (-C, -K), MMD-AP0181SPH (-C, -K),

MMD-AP0071SH-C, MMD-AP0091SH-C, MMD-AP0121SH-C, MMD-AP0151SH-C, MMD-AP0181SH-C,

• This Service Manual describes contents of the new Slim Duct indoor unit. For the outdoor unit, refer to the Manual with FILE NO. A03-009.

CONTENTS

SAFETY CAUTION ............................................................................................ 3

1. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ........................................ 8

2. WIRING DIAGRAM..................................................................................... 9

3. PARTS RATING........................................................................................ 10

4. FAN CHARACTERISTICS........................................................................ 50

5. REFRIGERANTING CYCLE DIAGRAM................................................... 52

6. CONTROL OUTLINE................................................................................ 53

7. APPLIED CONTROL................................................................................ 57

8. TROUBLESHOOTING .............................................................................. 62

9. CONFIGURATION OF CONTROL CIRCUIT .......................................... 113

10. DETACHMENTS ..................................................................................... 118

11. P.C. BOARD EXCHANGE PROCEDURES ............................................ 123

12. EXPLODED VIEWS AND PARTS LIST .................................................. 128

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

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.

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.

WARNING

Check earth wires.

Prohibition of modification.

Use specified parts.

Do not bring a child

close to the equipment.

Insulating measures

No fire

Refrigerant

SAFETY CAUTION

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

and keep them.

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.

After the work has finished, be sure to use an insulation tester set (500V mugger) to check the resistance is 2MW or more between the charge section and the non-charge 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.

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.

Be sure to put on gloves (

∗∗

∗) during repair work.

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.

Insulator check

Ventilation

Be attentive to

electric shock

Compulsion

Check after rerair

Check after reinstallation

Put on gloves

Cooling check

WARNING

CAUTION

Assembly/Cabling

• New Refrigerant (R410A)

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

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 former 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 e xclusive 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 n ut 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 installation of the air conditioner. However clear impurities when using them.

4. Tools

(1) Required Tools for R410A

Mixing of different types of oil ma y cause a trouble 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.

V acuum 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) Lev el 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 for 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.

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.

Never charge the refrigerant over 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.

Gauge manifold

[ Cylinder with siphon ] [ Cylinder without siphon ]

OUTDOOR unit

Gauge manifold

OUTDOOR unit

Electronic

balance

Refrigerant

cylinder

Electronic

balance

Siphon

Refrigerant

cylinder

6. Environment

Use “Vacuum pump method” f or 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.

VLV

Connected to indoor unit

Main pipe

Valve fully closed (gas side)

Center unit

Low-

pressure gauge

High-

pressure gauge

Gauge manifold

Brazed

Service port

Ø6.4

Copper pipe

Ø6.4 Copper pipe

Fully tightened

Reducing valve

Nitrogen

gas

Valve fully closed (liquid side)

Valve fully closed (balance)

Connected to other terminal units

(Charge the refrigerant as below.)

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

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 charge 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.)

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

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.

Connect the charge hose to vacuum pump adaptor.

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.

4mm-hexagonal wrench is required.

1. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

MMD-AP0071SPH(-K), AP0091SPH(-K), AP0121SPH(-K), AP0151SPH(-K), AP0181SPH(-K)

511

910

372

359

422

502

103

163

21803 (inside)

210

845

168

(inside)

120

805

645

168

Air filter

Refrigerant piping

Drain-up port

Hung-up plate

Fresh air inlet (knock-out hole)

4-Ø4

Ø92

372

359

422

502

103

163

146 80

5980

511

910

803 (inside)

845

210

168(inside)

21 21

4-Ø4

Ø92

168

645

805

120

Fresh air inlet (knock-out hole)

Refrigerant piping

Drain-up port (SPH model only)

Hang-up plate

Natural drain port

MMD-AP0071SPH-C, AP0091SPH-C, AP0121SPH-C, AP0151SPH-C, AP0181SPH-C, MMD-AP0071SH-C, AP0091SH-C, AP0121SH-C, AP0151SH-C, AP0181SH-C

2. WIRING DIAGRAM

MMD-AP0071SPH(SH), AP0091SPH(SH), AP0121SPH(SH), AP0151SPH(SH), AP0181SPH(SH)

Control P.C. board

for undoor unit

MCC-1402

FM TA TC1,TC2,TCJ RY302 PMV DM FS

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

Symbol

Parts name

5 4 1 5

5 54 3

3 32 1

1 1

CN333 (WHI)

CN82 (BLU)

(External static pressure setup)

CN33 (WHI)

CN34 (RED)

Non Drain pump type ("SH" Type)

Drain pump type ("SPH" Type)

CN112

(WHI)

CN334 (WHI)

1 2 3 4 5 6 1

1 1

1 2 1 2

CN111

(WHI)

1 2

CN110

(WHI)

1 2 1 2

2 2

3 3

4 4

5 3

1 2 3

1 3

CN34 (RED)

1 2 3

1 3

4 5

5 5

6 6

PMV

131

CN104

(YEL)

212

CN102

(RED)

TCJ

212

CN101

(BLK)

CN100 (BRW)

CN80

(GRN)

TC2

PNL

EXCT

CN73

(RED)

CN70 (WHI)

CN20 (BLU)

TC1

1 2 3 4 5

CN81 (BLK)

1 2 3 4 5

CN50 (WHI)

CN309

(YEL)

1 2 3 4 5

CN60 (WHI)

CN32 (WHI)

Option

1 2

Fan drive

1 2 3 4 5 6

CN61 (YEL)

CN41 (BLU)

CN40 (BLU)

CN44

(BRW)

1 2 3 4 5 6

11221

1 233

BLU

BLK

313

CN66 (WHI)

WHI

RED

P301

CN67 (BLK)

Motor drive

circuit

CN304

(GRY)

RY302

CN68 (BLU)

Fuse T6.3A 250V~

Drain pump type ("SPH" Type)

Non Drain pump type ("SH" Type)

BLK

RED

WHI

Fuse T3.15A 250V~

Power supply circuit

DC20V

Power supply

220-240V~, 50Hz

220V~, 60Hz

Indoor unit

Earth screw

Closed-end

connector

R(L) S(N)

Flow

Selector unit

Earth screw

Outdoor unit

Wired remote controller

U1 U2

A B

DC15V DC12V DC7V

CN71

CN72

(CHK)

(DISP)

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 a control P.C. board.

Color

indication

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

3. PARTS RATING

3-1. P arts Rating

Model MMD-

Fan motor Pulse motor Pulse motor valve Drain pump motor ∗ Float switch ∗ TA sensor TC1 sensor TC2 sensor TCJ sensor

AP0071SPH AP0091SPH AP0121SPH AP0151SPH AP0181SPH

SWF-280-60-1

EDM-MD12TF-3

EDM-B25YGTF EDM-B40YGTF

ADP-1409

FS-0218-102

Lead wire length : 1558mm Vinyl tube Ø4 size lead wire length : 1200mm Vinyl tube (Blue) Ø6 size lead wire length : 1200mm Vinyl tube (Black) Ø6 size lead wire length : 1200mm Vinyl tube (Red)

3-2. Name of Each Part

Air inlet

Suction duct is connected.

Earth screw

It is included in the electric parts box.

Air filter

(Air filter is not provided to some models in the series.)

Air outlet

Discharge duct is connected.

∗ “SPH” series only

Display section

Operation section

ON / OFF

FAN

TEMP.

SWING/FIXTIME

MODE

VENT

UNITSET CL

FILTER RESET

TEST

TIMER SET

CODE No.

UNIT No.

TEST

SETTING

DATA

SET

R.C. No.

78 9

1 4

10 11

CODE No.

UNIT No.

TEST

SETTING

DATA

SET

R.C. No.

3-3. P arts Name of Remote Controller

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 f or a while after [SET DATA] 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]

→ [OFF] repeat OFF timer → [ON] → No display.

Filter display

If “FILTER ” is displayed, clean the air filter.

TEST run display

Displayed during a test run.

Flap position display (for 4-Way Air Discharge Cassette Type and Under Ceiling T ype model only)

Displays flap position.

SWING display

Displayed during up/down movement of the flap.

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 or heating operation is impossible because the outdoor temperature goes out of the operable range.

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)

(HIGH)

(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

ON / OFF

MODE

, / buttons and

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.)

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

ON / OFF

button only.

Operation lamp

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

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

ON / OFF

button

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

or .

OPTION :

Remote controller sensor

UUsually 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.

• In case that one remote controller controls the multiple indoor units, the setup operation is unavailab le in g roup control.

8 9

ON / OFF

FAN

TEMP.

SWING/FIXTIME

MODE

VENT

UNITSET CL

FIL TER RESET

TEST

TIMER SET

Air volume select button

Selects the desired air volume mode. The Concealed Duct High Static Pressure type

models cannot be operated.

Timer set button

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

Check button

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

Fan button

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

• If is displayed on the remote controller when pushing the FAN button, a fan is not connected.

Filter reset button

Resets (Erases) “FILTER ” display.

Wind direction and Swing

UNIT

If the multiple indoor units are operated by only one remote controller, select the units when the air direction is adjusted.

SWING/FIX

Set up the auto swing and angle of the flap .

• This function is not provided to Concealed Duct Standard Type, High Static Pressure Type, Floor standing Cabinet Type, Floor Standing Concealed Type, or Slim Duct Type.

3-4. 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

ON / OFF

button only.

Preparation

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

• When the power supply is turned on, a partition line is display ed 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 is not a failure.

REQUIREMENT

• While using the air conditioner, operate it only with

ON / OFF

button without turning off the main power

switch and the leak breaker.

Push

ON / OFF

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 mode, if the room temperature reaches to the set temperature, the outdoor unit stops and the 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 is display ed.

Select air volume with “ ” button.

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

• When air volume is “AUTO ”, air volume differs according to the temperature difference between set temp. and room temp.

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

• In heating operation, if the room temperature is not heated sufficiently with VOLUME “LOW ” operation, select “MED. ” or “HIGH ” operation.

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

Stop

Push

ON / OFF

button.

The operation lamp goes off, and the operation stops.

ON / OFF

FAN

TEMP.

SWING/FIXTIME

MODE

VENT

UNITSET CL

FIL TER RESET

TEST

TIMER SET

HEAT DRY COOL FAN

Heat-pump model

DRY COOL FAN

Cooling only model

(Dehumidity)

LOW MED. HIGH

AUTO

1 2

ON / OFF

FAN

TEMP.

SWING/FIXTIME

MODE

VENT

UNITSET CL

FIL TER RESET

TEST

TIMER SET

3-5. A utomatic Operation (Super Heat Recovery Type Only)

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

ON / OFF

button

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 starts after approximately 3 to 5 minutes.

• When you select the Auto mode, it is unnecessary to set the fan speed. The F AN speed display will show AUTO and the fan speed will be automatically controlled.

• After the heating operation has stopped, F AN 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 discharged and the air volume decreases excessiv ely. During defrost operation, the fan stops so that cool air is not discharged and “HEAT READY” is displayed.

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

NOTE

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

ON / OFF

button.

Push this button again to stop the air conditioner.

3-6. 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 e very

push of the button.

• SET TIME and timer time displays flash.

Push

TIME

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

Push SET button.

•

SETTING

display disappears and timer time display goes on.

(When ON timer is activated, timer time, ON timer are displayed and other displays disappear.)

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

ON / OFF

button and stops the operation after the time of the timer has reached the

set time.

ON / OFF

FAN

TEMP.

SWING/FIXTIME

MODE

VENT

UNITSET CL

FIL TER RESET

TEST

TIMER SET

OFF

(OFF timer) (Repeat OFF timer)

No display

(ON timer)

OFF ON

3-7. Information

Confirmation before operation

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

• Make sure whether earth wire is connected.

• Make sure 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

ON / OFF

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

TEST

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 Super Modular Multi system air conditioner

• Although each indoor unit can be individually controlled in the Super Modular Multi system air conditioner, the cooling oper ation and the heating operation cannot be simultaneously performed in the multiple indoor units which are connected to an outdoor unit.

• If the cooling operation and the heating operation are simultaneously performed, the indoor unit

which ex ecutes cooling operation stops, and on the operation section lights up. On the other hand, the indoor unit which executes heating operation continues running. In a case that the manager of the air conditioner has fixed the operation to cooling or heating, an operation other than that set up is unavailab le. If an operation other than that

set up is executed, on the operation section lights up and the operation stops.

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.

3-8. Air Conditioner Operations and P erformance

3 minutes protection function

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

Power failure

Po wer failure during operation will stop the unit completely.

• To restart the operation, push the START/STOP b utton 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 w armed 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 froz en 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 w ater 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:

If air conditioner is used outside of the above conditions, safety protection may work.

Cooling operation

Dry operation

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

CAUTION

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. Outdoor temperature : 15°C to 21°C (Dry valve temp.), –15°C to 15.5°C (Wet valve temp.) Room temperature : 15°C to 28°C (Dry valve temp.)

3-9. When the Following Symptoms are Found

Check the points described below before asking repair servicing.

Symptom

Outdoor unit • White misty cold air

or water is out.

• Sometimes, noise “Pushu !” is heard.

Indoor unit •“Swish” sound is

heard sometimes.

• Slight “Pishi!” sound is heard.

• Discharge air smells.

• The operation lamp flashes

•“STANDBY” indication is lit.

• 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.

Air is not cooled or warmed sufficiently.

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, dur ing 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.

• Flashes when power is turned on again after power failure, or when power switch is turned on.

• When cooling operation cannot be performed because another indoor unit performs heating operation.

• 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.)

• Are COOL and HEAT selected simultaneously? (“STANDBY” indication is lit on the display column of the remote controller.)

• Is the suction port or discharge port of the outdoor unit obstructed?

• 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?

• Are COOL and HEAT selected simultaneously? (“STANDBY” indication is lit on the display column of the remote controller.)

It is not a failure.

Check again.

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 unstable.

• 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.

Silent

It’s strange.

“SPH” series

Shape

This manual

M10 × Ø34

——

Part name

Installation Manual

Insulating pipe

Washer

Hose band

Flexible hose

Heat insulator

Q’ty

Usage

(Be sure to hand over to customers)

For insulating pipe connecting section

For hanging down the unit

For connecting drain pipe

For adjustment of drain pipe centering

For insulating drain connecting section

PRECAUTIONS FOR SAFETY

• Ensure that all Local, National and International regulations are satisfied.

• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.

• The precautions described below include the important items regarding safety. Observe them without fail.

• After the installation work, perform a trial operation to check for any problem. Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.

• Turn off the main power supply switch (or breaker) before the unit maintenance.

• Ask the customer to keep the Installation Manual together with the Owner’s Manual.

CAUTION New Refrigerant Air Conditioner Installation

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT

DESTROY OZONE LAYER.

The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle.

To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main unit and installation tools are charged from those for the conventional refrigerant.

Accordingly the exclusive tools are required for the new refrigerant (R410A). For connecting pipes, use new and clean piping designed for R410A, and please care so that water or

dust does not enter. Moreover, do not use the existing piping because there are problems with pressureresistance force and impurity in it.

CAUTION To Disconnect the Appliance from Main Power Supply.

This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.

WARNING

• Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner.

Inappropriate installation may result in water leakage, electric shock or fire.

• Turn off the main power supply switch or breaker before attempting any electrical work.

Make sure all power switches are off. Failure to do so may cause electric shock.

• Connect the connecting wire correctly.

If the connecting wire is connected in a wrong way, electric parts may be damaged.

• When moving the air conditioner for the installation into another place, be very careful not to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle.

If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes abnormally high and it as a result causes pipe burst and injuries on persons.

• Do not modify this unit by removing any of the safety guards or by by-passing any of the safety interlock switches.

• Exposure of unit to water or other moisture before installation may cause a short-circuit of electrical parts.

Do not store it in a wet basement or expose to rain or water.

• After unpacking the unit, examine it carefully if there are possible damage.

• Do not install in a place that might increase the vibration of the unit.

• To avoid personal injury (with sharp edges), be careful when handling parts.

• Perform installation work properly according to the Installation Manual.

Inappropriate installation may result in water leakage, electric shock or fire.

• When the air conditioner is installed in a small room, provide appropriate measures to ensure that the concentration of refrigerant leakage occur in the room does not exceed the critical level.

• Install the air conditioner securely in a location where the base can sustain the weight adequately.

• Perform the specified installation work to guard against an earthquake.

If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.

• If refrigerant gas has leaked during the installation work, ventilate the room immediately.

If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.

• After the installation work, confirm that refrigerant gas does not leak.

If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas might generate.

• Electrical work must be performed by a qualified electrician in accordance with the Installation Manual. Make sure the air conditioner uses an exclusive power supply.

An insufficient power supply capacity or inappropriate installation may cause fire.

• Use the specified wires for wiring connect the terminals securely fix. To prevent external forces applied to the terminals from affecting the terminals.

• Conform to the regulations of the local electric company when wiring the power supply.

Inappropriate grounding may cause electric shock.

• Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas.

If a combustible gas leaks, and stays around the unit, a fire may occur.

Accessory parts

H Accessory parts

3-10. Installation Manual

“SPH” series

INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER

This air conditioner adopts the new HFC refrigerant (R410A) which does not deplete the ozone layer.

• R410A refrigerant is apt to be affected by impurity such as water, oxidizing membrane, or oils because the pressure of R410A refrigerant is higher than that of the former refrigerant by approx. 1.6 times. Accompanied with adoption of the new refrigerant, refrigerating oil has been also changed. Therefore pay attention so that water, dust, former refrigerant, or refrigerating oil does not enter into the refrigerating cycle of the new refrigerant air conditioner during installation work.

• To prevent from mixing of refrigerant or refrigerating oil, the size of charge port of the main unit or connecting section of installation tool differs from that of the air conditioner for the former refrigerant. Accordingly the exclusive tools are required for the new refrigerant (R410A) as shown below.

• For connecting pipes, use the new and clean piping materials so that water or dust does not enter.

Required tools and cautions on handling

It is necessary to prepare the tools and parts as described below for the installation work. The tools and parts which will be newly prepared in the following items should be restricted to the exclusive use.

Explanation of symbols

: Newly prepared (It is necessary to use it properly exclusive to R410A separated from those for R22 or R407C.)

¡: Former tool is available.

Used tools

Gauge manifold Charging hose Charging cylinder Gas leak detector Vacuum pump Vacuum pump with counter-

flow preventive adapter Flare tool Bender Refrigerant recovery device Torque wrench Pipe cutter Refrigerant cylinder

Welding machine/ Nitrogen gas cylinder

Refrigerant charging balance

Usage

Vacuuming or charging of refrigerant and operation check

Charges refrigerant Checks gas leak Vacuum drying Vacuum drying

Flare processing of pipes Bending processing of pipes Recovers refrigerant Tightens flare nut Cuts pipes Charges refrigerant

Welding of pipes

Charges refrigerant

Proper use of tools/parts

Newly prepared, Exclusive to R410A

Unusable (Use the Refrigerant charging balance.)

Newly prepared

Usable if a counter-flow preventive adapter is attached

: R22 (Existing article)

: Usable by adjusting size

: R22 (Existing article)

Exclusive to R410A

Ø12.7mm, Exclusive for Ø15.9mm

: R22 (Existing article)

Exclusive to R410A

ID : Refrigerant name entered

: R22 (Existing article)

SELECTION OF INSTALLATION PLACE

WARNING

• Install the air conditioner where there is sufficient strength to weight of the unit.

If strength is insufficient, the unit may fall down resulting in human injury.

• Perform a specified installation work to guard against an earth quake.

An incomplete installation can cause accidents by the units failing and dropping.

• Install the air conditioner at a height 2.5m or more from the floor.

If you insert your hands or others directly into the unit while the air conditioner operates, it is dangerous because you may contact with revolving fan or active electricity.

CAUTION

• Do not install the air conditioner in a location subject to a risk of exposure to combustible gas.

Should the combustible gas leak and collect near the unit, fire may occur.

Upon approval of the customer, install the air conditioner in a place that satisfies the following conditions.

• Place where the unit can be installed horizontally.

• Place where a sufficient servicing space can be ensured for safe maintenance and check.

• Place where drained water will not cause any problem.

Avoid installing in the following places.

• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas (hot spring). (Should the unit be used in these places, special protective measures are needed.)

• Place exposed to oil, vapor, oil smoke or corrosive gas.

• Place where organic solvent is used nearby.

• Place close to a machine generating high frequency.

• Place near door or window where may come to contact with the fresh air of high humidity. (Dewing may be caused.)

• Place where special spray is frequently used.

• Place with poor ventilation.

Installation under high-humidity atmosphere

In some cases including the rainy season, especially inside of the ceiling may become high-humidity atmosphere (dew-point temperature: 23°C or higher).

1. Installation to inside of the ceiling with tiles on the roof

2. Installation to inside of the ceiling with slated roof

3. Installation to a place where inside of the ceiling is used for pathway to intake the fresh air

• In the above cases, additionally attach the heat insulator to all positions of the air conditioner, which come to contact with the high-humidity atmosphere. In this case, arrange the side plate (Check port) so that it is easily removed.

• Apply also a sufficient heat insulation to the duct and connecting part of the duct.

[Reference] Dewing test conditions

Indoor side: 27°C dry bulb temperature

24°C wet bulb temperature

Air volume: Low air volume, operation time 4 hours

“SPH” series

Air outlet

100 or more

250

or more

5 or more 210

235 or more

50 or more

Air inlet

5 or more 210

235 or more

2500 or more

Ceiling

Floor surface

2500 or more

Floor surface

Air inlet

5 or more 210

235 or more

300 or more

Ceiling

(Unit : mm)

Ceiling

Air outlet

945

645

745

Service door (Ceiling opening)

645

945

Service door (Ceiling opening)

Air filter

745

945

SELECTION OF INSTALLATION PLACE

Installation space

Reserve space required for maintenance the indoor unit and service work.

Service space

Remove the filter from the main unit while pushing down on the tabs.

Force

Air filter

Main unit

Remove the cover plate and then fix it to the bottom surface.

Main unit

(after remover)

Air filter

Do surely hooking to the main unit.

8m or less

Notification of filter cleaning term setup

The lighting term setup of the filter sign (Notification of filter cleaning) of the remote controller can be changed according to the condition of installation.

For setup method, refer to “Change of lighting term of filter sign” and “To secure better effect of heating” in the Applicable controls of this Manual.

In case of wireless type

The sensor of indoor unit with wireless remote controller can receive a signal 8m or less.

Based upon it, determine a place where the remote controller is operated and the installation place of the indoor unit.

• To prevent a malfunction, select a place where is not influenced by a florescent light or direct sunlight.

• Two or more (Up to 6 units) indoor units with wireless remote controller can be installed in the same room.

Arranging the to back air inlet type

“SPH” series

INSTALLATION OF INDOOR UNIT

WARNING

Install the air conditioner certainly to sufficiently withstand the weight. If the strength is insufficient, the unit may fall down resulting in human injury. Perform a specified installation work to guard against strong wind or earthquake. An incomplete installation can cause accidents by the units falling and dropping.

REQUIREMENT

Strictly comply with the following rules to prevent damage of the indoor units and human injury.

• Do not put a heavy article on the indoor unit. (Even units are packaged)

• Carry in the indoor unit as it is packaged if possible. If carrying in the indoor unit unpacked by necessity, be sure to use buffering cloth, etc. to not damage the unit.

• To move the indoor unit, hold the hooking metals (4 positions) only. Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, or resin parts, etc.).

• Carry the package by two or more persons, and do not bundle it with PP band at positions other than specified.

External view

511

910

372

359

422

502

103

163

803 (inside)

210

845

168

(inside)

120

805

645

168

Air filter

Refrigerant piping

Drain-up port

Hung-up plate

Fresh air inlet (knock-out hole)

4-Ø4

Ø92

Anchor bolt

(Blade type

bracket)

(Slide type

bracket)

(Pipe hanging

anchor bolt)

Reinforcing steel

Hanging bolt

Hanging bolt Support angle

Hanging bolt

Nut

M10 or W3/8 M10 or W3/8

4 pieces

12 pieces

Installation of hanging bolt

Use M10 hanging bolts (4 pcs, to be local procure). Matching to the existing structure, set pitch according to size in the unit external view as shown below.

New concrete slab

Install the bolts with insert brackets or anchor bolts.

Steel flame structure

Use existing angles or install new support angles.

Existing concrete slab

Use a hole-in anchors, hole-in plugs, or a hole-in bolts.

Opening hole on ceiling and placing of hanging bolt

• Considering the indoor unit and the hanged-up piping/wiring work, determine the installation position and direction.

• After installation position of the indoor unit has been determined, open a hole on the wiring and place the hanging bolt.

• For opening size of the ceiling and the hanging bolt pitch, see the external view.

• When the ceiling has already boarded, draw the drain pipe, refrigerant pipe, inter-unit wire between indoor and outdoor units, central control system wire, and remote controller wire up to the position where pipes and wires are connected before hanged-up the indoor unit.

The hanging bolts and nuts will be procured locally.

Hanging bolt (W3/8 or M10)

Nut (W3/8 or M10)

(1)Required those other than M10 flat washer at site. (2)To prevent falling-off of bolt (safety), be sure to set it

just under the hanging bracket as shown in the figure.

(1) M10 flat washer (Accessory)

(2) M10 flat washer (Accessory)

Nut (W3/8 or M10)

Installation of indoor unit

• Attach the nuts (M10 or W3/8: Procured locally) and the attached washers (Ø34) to the hanging bolt.

• Put washers at up and down of T-groove of the hanging bracket of the indoor unit to hang down the indoor unit.

• Using a level vial, check that four sides are horizontal. (Horizontal degree: Within 5mm)

“SPH” series

DRAIN PIPING WORK

CAUTION

• Following the Installation Manual, perform the drain piping work so that water is properly drained, and apply a heat insulation so as not to cause a dew. Inappropriate piping work may result in water leakage in the room and wet of furniture.

Pipe material/Insulator and size

The following materials for piping work and insulating process are procured locally.

Pipe material

Insulator

Hard vinyl chloride pipe socket for VP25 Hard vinyl chloride pipe VP25

(Nominal outer diameter Ø32mm) Foamed polyethylene foam, thickness:

10mm or more

REQUIREMENT

• Be sure to perform heat insulation of the drain pipes of the indoor unit.

• Never forget to perform heat insulation of the connecting part with the indoor unit. An incomplete heat insulation causes dewing.

• Set the drain pipe with downward slope (1/100 or more), and do not make swelling or trap on the piping. It may cause an abnormal sound.

• For length of the traversing drain pipe, restrict to 20m or less. In case of a long pipe, provide support brackets with interval of

1.5 to 2m in order to prevent waving.

• Set the collective piping as shown in the right figure.

• Do not mount an air purge pipe, otherwise drain water spouts out resulted in water leak.

• The hard vinyl-chloride pipe cannot be directly connected to the drain pipe connecting port of the indoor unit. For connection with the drain pipe connecting port, be sure to fix the attached flexible hose.

• Adhesive agent cannot be used for the pipe connecting port (hard socket) of the indoor unit. Be sure to use the attached hose band for fixing, otherwise damage or water leakage of the drain pipe connecting port is caused.

Connection of flexible hose

• Insert the soft socket of the attached flexible hose into the connecting port of the drain pipe until it strikes against the end.

• Align the attached hose band to the end of the pipe connecting port, and then tighten it surely.

REQUIREMENT

• Be sure to fix the soft socket with the

attached hose band and set the tightening position at upper side.

• Use the attached flexible hose by

bending it with 45° or less so that no breakage or clogging occurs.

As long as possible (100mm or more)

VP30 or more

Downward slope 1/100 or more

VP25

(Collective pipes)

Align the attached hose band to the end of hose, set the tightening position upward, and then tighten it.

Drain pipe connecting port (Hard socket)

Ø25 vinyl chloride pipe (Local supply)

Adhesive agent prohibited

Soft socket Hard socket

Socket for VP25 (Local supply)

Indoor unit

Tra p

Arched shape

Support bracket

1/100 or more downward

Heat insulator

1.5m to 2m

GOOD

max

45˚

Riser (Trap)

90˚ Bend

max

45˚

OK NO GOOD

Top view

Air outlet

Side view

Side viewSide view

Air outlet

Rising up

687mm or less

Rising up 850mm or less

300mm or less

Indoor unit

Underneath of ceiling

220–240V ~, 50Hz 220V

, 60Hz

White

Black

CN34 (RED)

Black

Red

Pull out connector CN34 (Red) from P.C. board.

R(L) S(N)

Connection of drain pipe

• Connect the hard socket (local supply) to the hard socket side of the attached flexible hose which has been installed.

• Connect the drain pipes (local supply) successively to the connected the hard socket.

REQUIREMENT

• Using adhesive agent for vinyl chloride, connect

the hard vinyl chloride pipes certainly so that water does not leak.

• It requires several times to dry and harden the

adhesive agent. (Refer to Guide Manual of the adhesive agent.) In this time, be sure not to apply force to the connecting section with the drain pipes.

Drain up

When a downward grading cannot be secured on the drain pipe, a drain-up work is possible.

• Set the height of the drain pipe within 850mm from the bottom surface of the indoor unit.

• Draw out the drain pipe within 300mm from the end of the drain pipe connecting port of the indoor unit, and then raise it vertically.

• After the drain pipe has been raised, set a grading so that it is immediately bent downward.

Check the draining

After drain piping work, check that water drain is properly performed and water does not leak from the connecting part of the pipes. In this time, check also there is no abnormal sound of the motor of the drain pump. Be sure to check draining when installed in the heating period.

When the electric work has finished:

• Pour water as shown in the following figure, check water is drained from the drain pipe connecting port in COOL mode, and then check there is no water leak from the drain pipes.

When the electric work has not finished:

• Pull out the float switch connector (3P: Red) from P.C. board connector (CN34: Red) of the electric parts box. (In this time, be sure to check the power is turned off.)

• Connect the single-phase 220-240V 50Hz (or 220V 60Hz) power to the terminal blocks R (L) and S (N). (Never apply 220-240V to (A), (B), (U1),and (U2), otherwise a trouble of P.C. board occurs.)

• Pour water referring to the figure. (Amount: 1500cc to 2000cc)

• When the power is turned on, the drain pump motor drives automatically.

Check water is drained from the drain pipe connecting port, and then check there is no water leak from the drain pipes.

• After check of draining and water leak, turn off the power supply, attach the float switch connector to the original position (CN34) of P.C. board, and then set the electric parts box as before.

“SPH” series

Flexible hose

Hose band

Attached heat insulator

Heat insulator to be procured locally

Hard vinyl chloride pipe

Insert the edge of hose into the drain pan and bend it downward.

Pump

Vessel

Water (1500cc~2000cc)

Cover plate

CAUTION

Pour water slowly.

If it is poured urgently, water is spread inside of the indoor unit resulted in a trouble.

DRAIN PIPING WORK

Heat insulating process

• After drain check, using the attached heat insulator for drain connecting section, wrap the flexible hose without clearance from the end of the drain pipe connecting port of the indoor unit.

• Covering the attached heat insulator for drain connecting section, wrap the drain pipe with heat insulator (local supply) without clearance.

AIR DUCTING

6-1. Arrangement

Referring to the following dimensions, manufacture duct at the local site.

825

100

12.5

100100

12.5

44.3 100 44.3

188

825

286.8

8.2 or less

45.3 41.5100100

100100

12.5 100

12.5

100100

805

100 100 100

170

100 100

266

100100100

805

Remove the cover plate and then fix it to the bottom surface.

Remove the filter from the main unit while pushing down on the tabs.

Force

Air filter

Main unit

CAUTION

Take out this cover plate.

Air inlet sideAir outlet side

Indoor unit

Aluminum tape (Local supply)

Duct:Insulation material (Local supply)

Aluminum tape (Local supply)

Under surface

Cover a screw

Flange

Connect a duct to the inside of the flange

Heat insulator with sticking material (100mm-width Local supply)

Aluminum tape (Local supply)

Flange (Local supply)

6-2. Connecting method of the duct

CAUTION

Incomplete heat insulation of the supply air flange and sealing may occur dewing resulted in falling of water drop.

Be sure to mount an air filter to the air inlet side; otherwise decrease of capacity and etc. may be caused.

“SPH” series

REFRIGERANT PIPING

WARNING

• If refrigerant gas has leaked during the installation work, ventilate the room immediately.

• If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.

• After the installation work, confirm that refrigerant gas does not leak.

• If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may generate.

REQUIREMENT

When the refrigerant pipe is long, set the support brackets to fix the pipe with 2.5 to 3m intervals. If the pipe is not fixed, abnormal sound may generate.

Be sure to use the flare nuts attached to the indoor unit or those fro R410A.

Permissible pipe length and permissible height difference

They are different according to the used outdoor unit. For details, refer to the Installation Manual attached to the outdoor unit.

Piping material and dimensions

Piping material Model MMD-

Pipe size (mm)

Gas side Liquid side

Phosphor deoxidization joint-less pipe for air conditioner

AP007 to AP012 AP015 to AP018

Ø9.5 Ø12.7 Ø6.4 Ø6.4

• Use a clean and new pipe, and check that impurity such as dust, oil, moisture, etc. does not adhere in the pipe.

Pipe forming/End positioning

Flaring

1. Cut the pipe with a pipe cutter.

2. Insert a flare nut into the pipe, and flare the pipe. As the flaring sizes of R410A differ from those of

refrigerant R22, the flare tools newly manufactured for R410A are recommended. However, the conventional tools can be used by adjusting projection margin of the copper pipe.

• Flaring diam. meter size : A (Unit : mm)

In case of flaring for R410A with the conventional flare tool, pull it out approx. 0.5 mm more than that for R22 to adjust to the specified flare size. The copper pipe gauge is useful for adjusting projection margin size.

90˚

Obliquity Roughness Warp

NO GOODOK

- 0.4

Outer diam. of

copper pipe

6.4

9.5

12.7

A R410A

9.1

13.2

16.6

Work using double spanner

• Projection margin in flaring : B (Unit : mm)

Rigid (Clutch type)

Outer diam. of

copper pipe

6.4

9.5

12.7

R410A tool used

R410A R22

0 to 0.5 (Same as left) 0 to 0.5 (Same as left) 0 to 0.5 (Same as left)

Conventional tool used

R410A R22

1.0 to 1.5 0.5 to 1.0

Imperial (Wing nut type)

Outer diam. of copper pipe

6.4

9.5

12.7

R410A R22

1.5 to 2.0 1.0 to 1.5

2.0 to 2.5 1.5 to 2.0

Connection of refrigerant pipe

Connect all the refrigerant pipes with flare connecting work.

• Since the atmospheric pressure only is sealed as the sealing gas, it is not abnormal that “Pushu…” sound is not heard when the flare nut is removed.

• Be sure to use a double spanner for pipe connecting work of the indoor unit.

• Refer to the following table for tightening torque.

• Tightening torque of flare pipe connections

Pressure of R410A is higher than that of R22 by approx. 1.6 times. Therefore, using a torque wrench, tighten the flare pipe connecting sections which connect the indoor and outdoor units of the specified tightening torque. Incorrect connections may cause not only a gas leak, but also a trouble of the refrigerating cycle.

REQUIREMENT

If an excessive torque is applied, the nut may crack depending on the installation conditions.

Airtight test/Air purge, etc.

For airtight test, air purge, addition of refrigerant, and gas leak check, follow the Installation Manual attached to the outdoor unit.

REQUIREMENT

Be sure to use the tool such as charge hose exclusive to R410A.

Do not turn on the power until the airtight test and the vacuuming have finished. (If turning on the power, the incorporated PMV is closed fully and the period until the vacuuming finishes elongates.

Open fully valves of the outdoor unit

Gas leak check

Check with a leak detector or soap water whether gas leaks or not, from the pipe connecting section or cap of the valve.

REQUIREMENT

Use a leak detector manufactured exclusively for HFC refrigerant (R410A, R134a, etc.).

Connecting pipe

outer dia. (mm)

Ø6.4

Ø9.5

Ø12.7

Tightening torque

(N•m)

14 to18 (1.4 to 1.8 kgf•m)

33 to 42 (3.3 to 4.2 kgf•m) 50 to 62 (5.0 to 6.2 kgf•m)

Re-tightening

torque (N•m)

18 (1.8 kgf•m)

42 (4.2 kgf•m) 62 (6.2 kgf•m)

“SPH” series

Using tape, fix the heat insulator.

Set notching upward.

Pipe side (Required at the site)

Attached heat insulating pipe

Heat insulating process

Perform heat insulating for pipes at liquid side and gas side separately. In cooling time, temperature at both liquid and gas sides becomes lower. Therefore, perform heat insulating process sufficiently to avoid dewing.

• For heat insulator of pipe at gas side, be sure to use one with heat-resisting temp.120°C or more.

• Using the attached heat insulating pipe, perform heat insulating process securely for pipe connecting part of the indoor units without clearance.

REQUIREMENT

Apply the heat insulation to the pipe connecting section of the indoor unit securely up to the root without exposure of the pipe. (The pipe exposed to the outside causes water leak.)

ELECTRIC WORK

WARNING

1. Using the specified wires, ensure to connect the wires, and fix wires securely so that the

external strength of the wires do not transmit to the connecting part of the terminals.

Incomplete connection or fixation may cause a fire, etc.

2. Be sure to connect earth wire. (Grounding work)

Do not connect the earth wire to gas pipe, city water pipe, lightning rod, or the earth wire of telephone. Incomplete grounding causes an electric shock.

3. For electric work, strictly follow to the Local Regulation in each country and the Installation

Manual, and use an exclusive circuit.

Capacity shortage of power circuit or incomplete installation may cause an electric shock or a fire.

CAUTION

Be sure to install an earth leakage breaker.

If an earth leakage breaker is not installed, an electric shock may be caused.

REQUIREMENT

• For power supply wiring, strictly conform to the Local Regulation in each country.

• For wiring of power supply of the outdoor units, follow to the Installation Manual of each outdoor unit.

• Never connect 220–240V power to the terminal blocks (A, B, U1, U2, X, Y, etc.) for control wiring.

(Otherwise, the system will be failed.)

• Perform the electric wiring so that it does not come to contact with the high-temperature part of the pipe.

The coating may melt resulted in an accident.

• After connecting wires to the terminal blocks, provide a trap and fix wires with the wire clamp.

• Store the refrigerant piping line and control wiring line in the same line.

• Do not turn on the power of the indoor unit until vacuuming of the refrigerant pipes completes.

REFRIGERANT PIPING

Power supply cord and communication wires specifications

Power supply cord and communication wires are procured locally. For the power supply specifications, follow to the table below. If capacity is little, it is dangerous because overheat or

seizure may be caused. For specifications of the power capacity of the outdoor unit and the power supply wires, refer to the Installation

Manual attached to the outdoor unit.

Indoor unit power supply

• For the power supply of the indoor unit, prepare the exclusive power supply separated from that of the outdoor unit.

• Arrange the power supply, earth leakage breaker, and main switch of the indoor unit connected to the same outdoor unit so that they are commonly used.

• Power supply cord specification : Cable 3-core 2.5mm², in conformity with Design 60245 IEC 57.

Control wiring, Central controller wiring

• 2-core with polarity wires are used for the Control wiring between indoor unit and outdoor unit and Central controller wiring.

• To prevent noise trouble, use 2-core shield wire.

• The length of the communication line means the total length of the inter-unit wire length between indoor and outdoor units added with the central control system wire length.

CAUTION

The remote controller wire (Communication line) and AC220–240V wires cannot be parallel to contact each other and cannot be stored in the same conduits. If doing so, a trouble may be caused on the control system due to noise, etc.

Remote controller inter-unit wiring

Indoor unit

Remote

controller

Indoor unit

L1 L2 Ln

(Max. 8 units)

Indoor unit Indoor unit

Remote controller wiring

• 2-core with non-polarity wire is used for wiring of the remote controller wiring and group remote controllers wiring.

Power supply

Power supply wiring

Below 20m Below 50m

220–240V

~ 50Hz

220V

~ 60Hz

Twist wire : 2.0 mm² Twist wire : 3.5 mm²

Power supply switch/Earth leakage breaker or power supply wiring/fuse rating for indoor units should be selected by the accummulated total current values of the indoor units.

Communication line

Control wiring between indoor unit and outdoor unit (2-core shield wire)

Central control line wiring (2-core shield wire)

Wire size

(Up to 1000m) Twist wire : 1.25 mm² (Up to 2000m) Twist wire : 2.00 mm²

Up to 500m Up to 400m Up to 200m

Twist wire: 0.5mm

to 2.0mm2 × 2

Total wire length of remote controller wiring and remote controller inter-unit wiring = L + L1 + L2 + … Ln

In case of wired type only In case of wireless type included

Remote controller wiring, remote controller inter-unit wiring

Total wire length of remote controller inter-unit wiring = L1 + L2 + … Ln

“SPH” series

Cable connection

REQUIREMENT

• Be sure to pass the wire through the wire connection port of the indoor unit.

• Keep a margin (Approx. 100mm) on a wire to hang down the electric parts box at servicing, etc.

• The low-voltage circuit is provided for the remote controller.

• Before remove the electric parts cover, remove the cover plate and air filter.

• Remove the cover of the electric parts box by taking off the mounting screws (2 positions) and pushing the hooking section. (The cover of the electric parts box remains hanged to the hinge.)

• Tighten the screws of the terminal block, and fix the wires with cord clamp attached to the electric parts box. (Do not apply tension to the connecting section of the terminal block.)

• Be sure to set a loop for the connecting wire of the storing part of the indoor unit electric parts; otherwise the electric parts box cannot be drawn out in service time.

• Mount the cover of the electric parts box without pinching wires.

(L)S(N)

Earth line

Power supply cord

Screw (2 positions)

Electric parts box

Electric parts box cover

Air filter

Cover plate

(L )

)

Control wire

Remote controller wire

Cable cramp

Power supply cord

ELECTRIC WORK

Remote controller wiring

• As the remote controller wire has no polarity, there is no problem if connections to indoor unit terminal blocks A and B are reversed.

Address setup

Set up the addresses according to the Installation Manual attached to the outdoor unit.

Wiring between indoor and outdoor units

NOTE

An outdoor unit connected with control wiring between indoor and outdoor units wire becomes automatically the header unit.

Terminal block for remote controller wiring of indoor unit

A B

Remote controller wire (Field supply)

Remote controller unit

A B

Terminal block

Indoor power supply 220-240V, ~50Hz 220V~60Hz

Outdoor Power supply 380V-415V ~ 50Hz 380V ~ 60Hz

Earth leakage breaker

Header outdoor unit

Indoor unit

Remote controller

Pull box

Earth leakage breaker power switch

Pull box Pull box

Header outdoor unit

Earth leakage breaker

Control wiring between indoor and outdoor units

Earth

terminal

U1 U2

U1 U2 U3 U4L1 L2 L3 N U5 U6

L N A B

A B

Control wiring between outdoor units

Outdoor Power supply 380V-415V ~ 50Hz 380V ~ 60Hz

Earth

terminal

U1 U2 U3 U4L1 L2 L3 N U5 U6

Control wiring between indoor units

Indoor unit

Remote controller

Earth

U1 U2L N A B

A B

Indoor unit

Remote controller

Earth

U1 U2L N A B

A B

Indoor unit

Earth

U1 U2L N A B

“SPH” series

APPLICABLE CONTROLS

NOTIFICATION

When using the equipment at the first time, it will take a lot of time that the remote controller accepts an operation after power was on. However, it is not a trouble.

• Automatic address

• While automatic addressing, the operation cannot be performed on the remote controller.

• For automatic addressing, Max. 10 minutes (generally, approx. 5 minutes) are required.

• When power will be turned on after finish of automatic addressing;

• It will require Max. 10 minutes (generally, approx. 3 minutes) that outdoor unit starts operation after power was on.

As all have been set to [Standard] at the shipment, change the setup of the indoor unit if necessary. To change the setup, use the main remote controller (wired remote controller). * The setup change for wireless remote controller, sub remote controller, or remote controller-less system

(Central control remote controller only is provided.) is impossible. In these cases, prepare and mount a separate main remote controller.

Exchange of applicable control setup

Basic operation procedure for setup exchange

Change the setup while operation of the equipment stops. (Be sure to stop the operation of a set.)

Procedure

2 3

4 5

Description

When pushing

SET, CL

, and

TES

buttons simultaneously for 4 seconds or more, after a while, the display part

flashes as shown in the figure. Check that the displayed item code is [10].

• If the item code indicates other than [10], push

TES

button to erase the display, and then retry the operation from the first step. (For some time after

TES

button has been pushed, the operation of

the remote controller cannot be accepted.)

(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 to be changed. In this time, the position of the indoor unit of which setup to be changed can be confirmed because the fan and the flap of the selected indoor unit work.

Using , buttons of set temperature, specify the item code [

Using , buttons of timer time, select set data [

****

Push

SET

button. In this time, if the display changes from flashing to lighting, the setup completes.

• To change the setup of an indoor unit other than the selected one, start operation from Procedure

• To change the setup of another setup in the selected indoor unit, start operation from Procedure

Pushing

button clears the set up contents which have been already set. In this case, retry from Procedure 2.

When the setup finished, push

TES

button. (The setup is determined.)

Pushing

TES

button deletes the display and returns the status to normal stop status. (For some time after

TES

button has been pushed, the operation of the

remote controller cannot be accepted.)

(* The display changes according

to the indoor unit model.)

ON / OFF

FAN

TEMP.

SWING/FIXTIME

MODE

VENT

UNITSET CL

FILTER RESET

TEST

TIMER SET

CODE No.

UNIT No.

R.C. No.

3 5

4 6

CODE No.

UNIT No.

R.C. No.

∗

∗∗

∗

∗∗∗∗∗

CODE No.

UNIT No.

SETTING

R.C. No.

Short plug position

Set data External static pressure

0000

10 Pa (At shipment)

0001

20 Pa

0003

35 Pa

0006

50Pa

Shor

N11

Ope

N11

Setup of external static pressure

Be sure to set up a tap change based upon the resistance (external static pressure) of the duct to be connected.

To set up a tap change, follow to the basic operation procedure (

→ 2 → 3 → 4 → 5 → 6 ).

• Specify [5d] to the item code in procedure

• For the setup data of procedure

, select a setup data of the external static pressure to be set up from the following table.

Setup data

0000 0001 0003 0006

External static pressure

10 Pa Standard (At shipment) 20 Pa High static pressure 1 35 Pa High static pressure 2 50 Pa High static pressure 3

In case of remote controller-less (Group control)

For setup to the high ceiling, there is selecting method by exchanging the short plugs on the indoor microcomputer P.C. board as shown in the following table other than selecting method by standard wired remote controller (sold separately). Utilize this method for remote controller-less (Group control) case.

∗ However, when the setup to high ceiling has been once exchanged, it is required for returning it to 0000 to change

the short plug to the standard (at shipment) position and rewrite data to the setup data 0000 from the wired remote controller sold separately though setup to 0001, 0003 or 0006 are freely available.

• Select by exchange of short plugs on the indoor P.C. board.

• Short plug position (CN112, CN111, CN110 from the left)

“SPH” series

Change of lighting term of filter sign

According to the installation condition, the lighting term of the filter sign (Notification of filter cleaning) can be changed.

Follow to the basic operation procedure (

→ 2 → 3 → 4 → 5 → 6 ).

• For the item code in Procedure

, specify [01].

• For the [Set data] in Procedure

, select the setup data of filter sign lighting terme from the following table.

Setup data

0000 0001 0002 0003 0004

Filter sign lighting term

None 150H 2500H (At shipment from factory) 5000H 10000H

To secure better effect of heating

When it is difficult to obtain satisfactory heating due to installation place of the indoor unit or structure of the room, the detection temperature of heating can be raised. Also use a circulator, etc. to circulate heat air near the ceiling.

Follow to the basic operation procedure (

→ 2 → 3 → 4 → 5 → 6 ).

• For the item code in Procedure

, specify [06].

• For the set data in Procedure

, select the setup data of shift value of detection temperature to be set up from the table below.

Setup data

0000 0001 0002 0003 0004 0005 0006

Detection temp shift value

No shift +1°C +2°C (At shipment from factory) +3°C +4°C +5°C +6°C

Group control

In a group control, a remote controller can control up to maximum 8 units.

• For cabling procedure and cables of the individual line (Identical refrigerant line) system, refer to “Electric work” in this Manual.

• Cabling between indoor units in a group is performed in the following procedure.

Connect the indoor units by connecting the remote controller inter-unit cables from the remote controller terminal blocks (A, B) of the indoor unit connected with a remote controller to the remote controller terminal blocks (A, B) of the other indoor unit. (No polarity)

• For address setup, refer to the Installation Manual attached to the outdoor unit.

APPLICABLE CONTROLS

NOTE

Do not use a forced operation in cases other than test operation because it applies an excessive load to the air conditioner.

In case of wired remote controller

Procedure

Description

Keep

TES

button pushed for 4 seconds or more.

[TEST] is displayed on the display part and the selection of mode in the test mode is permitted.

Push

ON / OFF

button.

Using

MODE

button, select the operation mode, [COOL] or [HEAT].

• Do not run the air conditioner in a mode other than [COOL] or [HEAT].

• The temperature controlling function does not work during test operation.

• The detection of error is performed as usual.

After the test operation, push

ON / OFF

button to stop the operation.

(Display part is same as procedure

)

Push

TES

button to cancel (release from) the test operation mode.

([TEST] disappears on the display part and the status returns to a normal stop status.)

TEST RUN

Before test operation

• Before turning on the power supply, carry out the following items.

1) Using 500V-megger, check there is 1MΩ or more between the terminal block of the power supply and the earth. If 1MΩ or less is detected, do not run the unit.

2) Check that all the valves of the outdoor unit are fully opened.

• Never push the electromagnetic contactor to carry out a forced test operation. (It is very dangerous because a protective device does not work.)

How to execute test operation

• To carry out a fan operation in a single indoor unit, turn off the power once, short CN72 on P.C. board, and then turn on the power again. (Start the unit in FAN mode.) In this case, do not forget to clear short-circuit of CN72 after test operation.

• Using the remote controller, check the operation in the usual operation. For the operation procedure, refer to the attached Owner’s Manual.

A forced test operation can be executed in the following procedure under condition of thermo-OFF of room temperature.

In order to prevent a serial operation, the forced test operation is released after 60 minutes and returns to the usual operation.

WARNING

To protect the compressor at starting time, keep power-ON condition before 12 hours or more.

1, 5

2, 4

ON / OFF

FAN

TEMP.

SWING/FIXTIME

MODE

VENT

UNITSET CL

FILTER RESET

TEST

TIMER SET

TEST

“SPH” series

Receiver unit

M4 × 25 screw (2 pieces)

Small screw

Spacer

Notch

Nameplate

In case of wireless remote controller

Procedure

Description

Remove a small screw which fixes the nameplate of the receiver unit. Remove the nameplate of the sensor 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 invalid. 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 receiver section as before. (A 60-minutes timer clearing function is attached to the receiver section in order to prevent a continuous test operation.)

TEST RUN

TROUBLESHOOTING

Confirmation and check

When a trouble occurred in the air conditioner, the check code and the indoor unit No. appear on the display part of the remote controller.

The check code is only displayed during the operation. If the display disappears, operate the air conditioner

according to the following “Confirmation of error history” for confirmation.

Confirmation of error history

When a trouble occurred on the air conditioner, the error history can be confirmed with the following procedure. (The error history is stored in memory up to 4 errors.)

This history can be confirmed from either operating status or stop status.

Procedure

Description

When pushing

SET

and

TES

buttons simultaneously for 4 seconds or

more, the right display appears. If [Service Check] is displayed, the mode enters in the error history

mode.

• [01: Order of error history] is displayed in CODE No. window.

• [Check Code] is displayed in CHECK window.

• [Indoor unit address in which an error occurred] is displayed in UNIT No.

Every pushing , buttons, the error history stored in the memory is displayed in order. The numbers in CODE No. indicates CODE No. [01] (Latest) → [04] (Oldest).

CAUTION

Do not push

button because all the error history of the indoor unit will be deleted.

After confirmation, push

TES

button to return to the usual display.

CODE No.

UNIT No.

R.C. No.

Check code Indoor unit No. in which

an error occurred

ON / OFF

FAN

TEMP.

SWING/FIXTIME

MODE

VENT

UNITSET CL

FILTER RESET

TEST

TIMER SET

CODE No.

UNIT No.

R.C. No.

+ 105 hidden pages

Toshiba MMD-AP0071SPH-C, MMD-AP0151SPH-C, MMD-AP0091SPH-C, MMD-AP0121SPH-C, MMD-AP0181SPH-C Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual