Toshiba RAV-SP1104AT-E, RAV-SP1404AT-E, RAV-SP1104ATZG-E, RAV-SM804UT-E, RAV-SM1104UT-E User Manual

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Page 1

SERVICE MANUAL

AIR-CONDITIONER

SPLIT TYPE

INDOOR UNIT

FILE NO. A07-003

RAV-SM564UT-E RAV-SM804UT-E RAV-SM1104UT-E RAV-SM1404UT-E

OUTDOOR UNIT

RAV-SP1104AT-E RAV-SP1404AT-E RAV-SP1104ATZ-E RAV-SP1404ATZ-E RAV-SP1104ATZG-E RAV-SP1404ATZG-E

R410A

PRINTED IN JAPAN, Dec., 2007 ToMo

Page 2

Adoption of New Refrigerant

This Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer.

WARNING

Cleaning of the air filter and other parts of the air filter involves dangerous work in high places, so be sure to have a service person do it. Do not attempt it yourself.

The cleaning diagram for the air filter is there for the service person, and not for the customer.

CONTENTS

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

1. SPECIFICATIONS ...................................................................................... 9

1-1. Indoor Unit........................................................................................................... 9

1-2. Outdoor Unit...................................................................................................... 21

1-3. Operation Characteristic Curve ....................................................................... 22

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) ...................................... 23

2-1. Indoor Unit......................................................................................................... 23

2-2. Outdoor Unit...................................................................................................... 26

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM .............................. 28

3-1. Indoor Unit......................................................................................................... 28

3-2. Outdoor Unit...................................................................................................... 29

3-3. Systematic Diagram of Refrigerating Cycle ................................................... 29

4. WIRING DIAGRAM ................................................................................... 30

4-1. Indoor Unit......................................................................................................... 30

4-2. Outdoor Unit (Wiring Diagram) ........................................................................ 31

5. SPECIFICATIONS OF ELECTRICAL PARTS .......................................... 32

5-1. Indoor Unit......................................................................................................... 32

5-2. Outdoor Unit (Parts Ratings) ........................................................................... 32

5-3. Accessory Separate Sold Parts ....................................................................... 32

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Page 3

6. REFRIGERANT R410A ........................................................................... 33

6-1. Safety During Installation/Servicing ............................................................... 33

6-2. Refrigerant Piping Installation ....................................................................... 33

6-3. Tools .................................................................................................................. 37

6-4. Recharging of Refrigerant................................................................................ 37

6-5. Brazing of Pipes................................................................................................ 38

6-6. Instructions for Re-use Piping of R22 or R407C ............................................ 40

7. INDOOR CONTROL CIRCUIT ................................................................. 43

7-1. Indoor Controller Block Diagram ..................................................................... 43

7-2. Control Specifications...................................................................................... 46

7-3. Optional Connector Specifications of Indoor P.C. Board .............................. 58

7-4. Indoor Print Circuit Board................................................................................ 59

8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS........... 60

8-1. Outdoor Controls .............................................................................................. 60

8-2. Outline of Main Controls .................................................................................. 61

9. TROUBLESHOOTING .............................................................................. 66

9-1. Summary of Troubleshooting........................................................................... 66

9-2. Troubleshooting ................................................................................................ 68

10. REPLACEMENT OF SERVICE P.C. BOARD ........................................... 99

10-1. Indoort Unit ....................................................................................................... 99

10-2. Outdoor Unit.................................................................................................... 104

11. SETUP AT LOCAL SITE AND OTHERS ................................................ 105

11-1. Indoor Unit....................................................................................................... 105

11-2. Setup at Local Site / Others ........................................................................... 116

11-3. How to Set up Central Control Address Number ......................................... 118

11-4. Outdoor Unit.................................................................................................... 122

12. ADDRESS SETUP.................................................................................. 129

12-1. Address Setup ................................................................................................ 129

12-2. Address Setup & Group Control.................................................................... 130

12-3. Address Setup ................................................................................................ 132

13. DETACHMENTS ..................................................................................... 135

13-1. Indoor Unit...................................................................................................... 135

13-2. Outdoor Unit.................................................................................................... 145

14. EXPLODED VIEWS AND PARTS LIST .................................................. 153

14-1. Indoor Unit....................................................................................................... 153

14-2. Outdoor Unit.................................................................................................... 158

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Page 4

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 (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.

DANGER

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 high-voltage 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.

– 4 –

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 earth 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 wires 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 port 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 wires as before. Perform the work so that the cabinet or panel does not catch the inner wires.

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

– 5 –

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 Megger) 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.

∗∗

– 6 –

Page 7

• New Refrigerant (R410A)

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

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 exclusive 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 conditioner 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 us#ing 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.

– 7 –

Page 8

4. Tools

1. Required Tools for R410A

Mixing of different types of oil may 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.

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



Used tool

Usage

Pipe flaring

Flaring by conventional flare tool

Connection of flare nut

Evacuating, refrigerant charge, run check, etc.

Vacuum evacuating

Refrigerant charge

Gas leakage check

Refrigerant charge

air conditioner installation

R410A

Existence of Whether convennew equipment tional equipment for R410A can be used

Yes *(Note)

Ye s N o

Ye s Ye s

Ye s N o

No No

Conventional air

conditioner installation

Whether conventional equipment can be used

Ye s

*(Note)

Ye s

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

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

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.

1) Vacuum pump Use vacuum pump by attaching vacuum pump adapter.

2) Torque wrench

3) Pipe cutter

4) Reamer

7) Screwdriver (+, –)

8) Spanner or Monkey wrench

9) Hole core drill

10) Hexagon wrench (Opposite side 4mm)

11) Tape measure

12) Metal saw

5) Pipe bender

6) Level vial

Also prepare the following equipments for other installation method and run check.

1) Clamp meter

2) Thermometer

3) IInsulation resistance tester (Megger)

4) Electroscope

– 8 –

Page 9

1. SPECIFICATIONS

1-1. Indoor Unit

1-1-1. 4-Way Air Discharge Cassette Type

Model

Cooling capacity (kW)

Heating capacity (kW)

Power supply

Electrical characteristics

Appearance

Outer dimension

Total weight

Heat exchanger

Fan unit Standard air flow H/M/L (m³/min.)

Air filter

Controller (Sold separately)

Sound pressure level H/M/L (dB•A)

Sound power level H/M/L (dB•A)

Connecting pipe Liquid side (mm)

Indoor unit RAV-SM

Outdoor unit RAV-SP

Running current (A)

Power consumption(kW)

Cooling

Heating

Maximum current

Main unit

Ceiling panel (Sold separately)

Main unit Width (mm)

Ceiling panel (Sold separately)

Main unit (kg)

Ceiling panel (Sold separately) (kg)

Fan

Motor (W)

Power factor (%)

EER

Energy efficiency class ∗

Energy rating ∗∗

Running current (A)

Power consumption(kW)

Power factor (%)

COP

Energy efficiency class ∗

Energy rating ∗∗

Model

Panel color

Height (mm)

Depth (mm)

Height (mm)

Width (mm)

Depth (mm)

Gas side (mm)

Drain port (mm)

564UT-E 804UT-E 1104UT-E 1404UT-E

562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E

5.3 7.1 10.0 12.5

5.6 8.0 11.2 14.0

1 phase 230V (220 – 240V) 50Hz

7.17 – 6.57 8.95 – 8.21 10.36 – 9.49 14.66 – 13.44

1.53 1.93 2.21 3.16

97 98 97 98

3.46 3.68 4.52 3.96

AAAA

————

5.62 – 5.15 9.42 – 8.63 10.96 – 10.05 14.89 – 13.65

1.20 2.03 2.34 3.21

97 98 97 98

4.67 3.94 4.79 4.36

AAAA

————

15.33 15.33 20.50 20.50

Zinc hot dipping steel plate

RBC-U31PG (W)-E, RBC-U31PG (WS)-E

W: Moon-white (2.5GY 9.0/0.5), WS: Stripe-white (2.5GY 9.0/0.5, (Gray: 8B 3/0.3))

256 256 319 319

840 840 840 840

30 30 30 30

950 950 950 950

20 20 24 24

4.2 4.2 4.2 4.2

Finned tube

Turbo fan Turbo fan Turbo fan Turbo fan

17.5/14.5/13.0 20.5/16.0/13.5 33.5/24.0/19.5 35.0/24.0/20.5

14 20 68 72

Standard filter attached (Long life filter)

RBC-AMT32E, AS21E2, AX31U (W)-E

32 / 29 / 28 35 / 31 / 28 43 / 38 / 33 44 / 38 / 34

47 / 44 / 43 50 / 46 / 43 58 / 53 / 48 59 / 53 / 49

12.7 15.9 15.9 15.9

6.4 9.5 9.5 9.5

VP25

– 9 –

∗ : IEC standard, ∗∗ : AS standard

Page 10

Model

Cooling capacity (kW)

Heating capacity (kW)

Power supply

Electrical characteristics

Appearance

Outer dimension

Total weight

Heat exchanger

Fan unit Standard air flow H/M/L (m³/min.)

Air filter

Controller (Sold separately)

Sound pressure level H/M/L (dB•A)

Sound power level H/M/L (dB•A)

Connecting pipe Liquid side (mm)

Indoor unit RAV-

Outdoor unit RAV-

Running current (A)

Power consumption(kW)

Cooling

Heating

Maximum current

Main unit

Ceiling panel (Sold separately)

Main unit Width (mm)

Ceiling panel (Sold separately)

Main unit (kg)

Ceiling panel (Sold separately) (kg)

Fan

Motor (W)

Power factor (%)

EER

Energy efficiency class ∗

Energy rating ∗∗

Running current (A)

Power consumption(kW)

Power factor (%)

COP

Energy efficiency class ∗

Energy rating ∗∗

Model

Panel color

Height (mm)

Depth (mm)

Height (mm)

Width (mm)

Depth (mm)

Gas side (mm)

Drain port (mm)

SM564UT-E SM804UT-E SM1104UT-E SM1404UT-E

SM563AT-E SM803AT-E SM1103AT-E SM1403AT-E

5.3 6.7 10.0 12.0

5.6 8.0 11.2 14.0

1 phase 230V (220 – 240V) 50Hz

7.89 – 7.24 9.97 – 9.12 14.61 – 13.40 17.62 – 16.14

1.65 2.09 3.11 3.74

95 95 97 96

3.21 3.21 3.22 3.21

AAAA

————

6.89 – 6.32 10.83 – 9.90 13.38 – 12.38 17.88 – 15.87

1.44 2.21 2.93 3.80

95 93 99 98

3.89 3.62 3.82 3.68

AAAA

————

15.33 15.33 20.50 20.50

Zinc hot dipping steel plate

RBC-U31PG (W)-E, RBC-U31PG (WS)-E

W: Moon-white (2.5GY 9.0/0.5), WS: Stripe-white (2.5GY 9.0/0.5, (Gray: 8B 3/0.3))

256 256 319 319

840 840 840 840

30 30 30 30

950 950 950 950

24 24 24 24

4.2 4.2 4.2 4.2

Finned tube

Turbo fan Turbo fan Turbo fan Turbo fan

17.5/14.5/13.0 20.5/16.0/13.5 33.5/24.0/19.5 35.0/24.0/20.5

14 20 68 72

Standard filter attached (Long life filter)

RBC-AMT32E, AS21E2, AX31U (W)-E

32 / 29 / 28 35 / 31 / 28 43 / 38 / 33 44 / 38 / 34

47 / 44 / 43 50 / 46 / 43 58 / 53 / 48 59 / 53 / 49

12.7 15.9 15.9 15.9

6.4 9.5 9.5 9.5

VP25

– 10 –

∗ : IEC standard, ∗∗ : AS standard

Page 11

Indoor unit 1 RAV- SM564UT-E SM804UT-E

Model Indoor unit 2 RAV- SM564UT-E SM804UT-E

Outdoor unit RAV- SP1104AT(Z)(ZG)-E SP1404AT(Z)(ZG)-E

Cooling capacity (kW) 10.0 12.5

Heating capacity (kW) 11.2 14.0

Indoor unit

Power supply 1 phase 230V (220 – 240V) 50Hz

Running current (A) 10.36 – 9.49 14.66 – 13.44

Power consumption (kW) 2.21 3.16

Cooling Power factor (%) 97 98

EER 4.52 3.96

Electrical characteristics

Heating Power factor (%) 97 98

Fan Turbo fan Turbo fan

Fan unit Standard air flow H/M/L (m³/min.) 17.5 / 14.5 / 13.0 20.5 / 16.0 / 13.5

Motor (W) 14 20

Sound pressure level H/M/L (dB•A) 32 / 29 / 28 35 / 31 / 28

Sound power level H/M/L (dB•A) 47 / 44 / 43 50 / 46 / 43

Power supply 1 phase 230V (220 – 240V) 50Hz

Standard length (m) 7.5 7.5

Min. length (m) 3 3

Outer dimension

Max. total length (m) 50 50

Over 30m 40g/m (31m to 50m) 40g/m (31m to 50m)

Energy efficiency class ∗ AA

Running current (A) 10.96 – 10.05 14.89 – 13.65

Power consumption (kW) 2.34 3.21

COP 4.79 4.36

Energy efficiency class ∗ AA

Outdoor unit

Height difference

Fan Propeller fan Propeller fan

Fan unit Standard air flow volume (m³/min.) 101 103

Motor (W) 100 + 100 100 + 100

Gas side

Connecting pipe

Liquid side

Sound pressure level Cooling/Heating (dB•A) 49 / 50 51 / 52

Sound power level Cooling/Heating (dB•A) 66 / 67 68 / 69

Outdoor lower (m) 30 30

Outdoor higher (m) 30 30

Main (mm) 15.9 15.9

Sub (mm) 12.7 15.9

Main (mm) 9.5 9.5

Sub (mm) 6.4 9.5

∗ : IEC standard

– 11 –

Page 12

Indoor unit 1 RAV- SM564UT-E SM804UT-E

Model Indoor unit 2 RAV- SM564UT-E SM804UT-E

Outdoor unit RAV- SM1103AT-E SM1403AT-E

Cooling capacity (kW) 10.0 12.5

Heating capacity (kW) 11.2 14.0

Indoor unit

Power supply 1 phase 230V (220 – 240V) 50Hz

Running current (A) 14.40 – 13.20 20.57 – 18.97

Power consumption (kW) 3.11 4.09

Cooling Power factor (%) 98 95

EER 3.22 3.06

Electrical characteristics

Heating Power factor (%) 98 99

Fan Turbo fan Turbo fan

Fan unit Standard air flow H/M/L (m³/min.) 17.5 / 14.5 / 13.0 20.5 / 16.0 / 13.5

Motor (W) 14 20

Sound pressure level H/M/L (dB•A) 32 / 29 / 28 35 / 31 / 28

Sound power level H/M/L (dB•A) 47 / 44 / 43 50 / 46 / 43

Power supply 1 phase 230V (220 – 240V) 50Hz

Standard length (m) 7.5 7.5

Min. length (m) 5 5

Outer dimension

Max. total length (m) 50 50

Over 30m 40g/m (31m to 50m) 40g/m (31m to 50m)

Energy efficiency class ∗ AB

Running current (A) 14.40 – 13.20 17.74– 16.08

Power consumption (kW) 2.93 4.00

COP 3.82 3.50

Energy efficiency class ∗ AB

Outdoor unit

Height difference

Fan Propeller fan Propeller fan

Fan unit Standard air flow volume (m³/min.) 75 75

Motor (W) 63 100

Gas side

Connecting pipe

Liquid side

Sound pressure level Cooling/Heating (dB•A) 53 / 54 54 / 54

Sound power level Cooling/Heating (dB•A) 70 / 71 71 / 71

Outdoor lower (m) 30 30

Outdoor higher (m) 30 30

Main (mm) 15.9 15.9

Sub (mm) 12.7 15.9

Main (mm) 9.5 9.5

Sub (mm) 6.4 9.5

∗ : IEC standard

– 12 –

Page 13

1-1-2. Concealed Duct Type

Model

Cooling capacity (kW)

Heating capacity (kW)

Power supply

Electrical characteristics

Appearance

Outer dimension

Total weight

Heat exchanger

Fan unit Standard air flow H/M/L (m³/min.)

Air filter TCB-

Controller (Sold separately)

Sound pressure level H/M/L (dB•A)

Sound power level H/M/L (dB•A)

Connecting pipe Liquid side (mm)

Indoor unit RAV-SM

Outdoor unit RAV-SP

Running current (A)

Power consumption(kW)

Cooling

Heating

Maximum current

Main unit

Ceiling panel (Sold separately)

Main unit Width (mm)

Ceiling panel (Sold separately)

Main unit (kg)

Ceiling panel (Sold separately) (kg)

Fan

Motor (W)

Power factor (%)

EER

Energy efficiency class ∗

Energy rating ∗∗

Running current (A)

Power consumption(kW)

Power factor (%)

COP

Energy efficiency class ∗

Energy rating ∗∗

Model

Panel color

Height (mm)

Depth (mm)

Height (mm)

Width (mm)

Depth (mm)

Gas side (mm)

Drain port (mm)

562BT-E 802BT-E 1102BT-E 1402BT-E

562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E

5.0 7.1 10.0 12.5

5.6 8.0 11.2 14.0

1 phase 230V (220 – 240V) 50Hz

6.51 – 5.97 9.74 – 8.93 13.78 – 12.63 17.76 – 16.28

1.39 2.10 2.94 3.83

97 98 97 98

3.60 3.38 3.40 3.26

AAAA

————

7.26 – 6.66 9.74 – 8.93 12.98 – 11.90 15.82 – 14.50

1.55 2.41 2.77 3.41

97 94 97 98

3.61 3.32 4.04 4.11

AAAA

————

15.86 16.30 21.73 22.13

Zinc hot dipping steel plate

—

320 320 320 320

700 1000 1350 1350

800 800 800 800

————

30 39 54 54

————

Finned tube

Centrifugal Centrifugal Centrifugal Centrifugal

13.0/11.9/9.8 19.0/16.2/13.3 27.0/23.0/18.9 33.0/28.0/23.1

120 120 120 120

UFM11BFCE UFM21BFCE UFM21BE UFM31BE UFM41BE UFM61BE UFM51BFCE UFM61BFCE

UFM71BE UFM81BE

RBC-AMT31E, AS21E2, AX21U(W)-E2

40 / 37 / 33 40 / 37 / 34 42 / 39 / 36 44 / 41 / 38

55 / 52 / 48 55 / 52 / 49 57 / 54 / 51 59 / 56 / 53

12.7 15.9 15.9 15.9

6.4 9.5 9.5 9.5

VP25

– 13 –

∗ : IEC standard, ∗∗ : AS standard

Page 14

Indoor unit 1 RAV- SM562BT-E SM802BT-E

Model Indoor unit 2 RAV- SM562BT-E SM802BT-E

Outdoor unit RAV- SP1104AT(Z)(ZG)-E SP1404AT(Z)(ZG)-E

Cooling capacity (kW) 10.0 12.5

Heating capacity (kW) 11.2 14.0

Indoor unit

Power supply 1 phase 230V (220 – 240V) 50Hz

Running current (A) 13.78 – 12.63 17.76 – 16.28

Power consumption (kW) 2.94 3.83

Cooling Power factor (%) 97 98

EER 3.4 3.26

Electrical characteristics

Heating Power factor (%) 97 98

Fan Centrifugal Centrifugal

Fan unit Standard air flow H/M/L (m³/min.) 13.0 / 11.9 / 9.8 19.0 / 16.2 / 13.3

Motor (W) 120 120

Sound pressure level H/M/L (dB•A) 40 / 37 / 33 40 / 37 / 34

Sound power level H/M/L (dB•A) 55 / 52 / 48 55 / 52 / 49

Power supply 1 phase 230V (220 – 240V) 50Hz

Standard length (m) 7.5 7.5

Min. length (m) 3 3

Outer dimension

Max. total length (m) 50 50

Over 30m 40g/m (31m to 50m) 40g/m (31m to 50m)

Energy efficiency class ∗ AA

Running current (A) 12.98 – 11.90 15.82 – 14.50

Power consumption (kW) 2.77 3.41

COP 4.04 4.11

Energy efficiency class ∗ AA

Outdoor unit

Height difference

Fan Propeller fan Propeller fan

Fan unit Standard air flow volume (m³/min.) 101 103

Motor (W) 100 + 100 100 + 100

Gas side

Connecting pipe

Liquid side

Sound pressure level Cooling/Heating (dB•A) 49 / 50 51 / 52

Sound power level Cooling/Heating (dB•A) 66 / 67 68 / 69

Outdoor lower (m) 30 30

Outdoor higher (m) 30 30

Main (mm) 15.9 15.9

Sub (mm) 12.7 15.9

Main (mm) 9.5 9.5

Sub (mm) 6.4 9.5

∗ : IEC standard

– 14 –

Page 15

1-1-3. Under Ceiling Type

Model

Cooling capacity (kW)

Heating capacity (kW)

Power supply

Electrical characteristics

Appearance

Outer dimension

Total weight

Heat exchanger

Fan unit Standard air flow H/M/L (m³/min.)

Air filter

Controller (Sold separately)

Sound pressure level H/M/L (dB•A)

Sound power level H/M/L (dB•A)

Connecting pipe Liquid side (mm)

Indoor unit RAV-SM

Outdoor unit RAV-SP

Running current (A)

Power consumption(kW)

Cooling

Heating

Maximum current

Main unit

Ceiling panel (Sold separately)

Main unit Width (mm)

Ceiling panel (Sold separately)

Main unit (kg)

Ceiling panel (Sold separately) (kg)

Fan

Motor (W)

Power factor (%)

EER

Energy efficiency class ∗

Energy rating ∗∗

Running current (A)

Power consumption(kW)

Power factor (%)

COP

Energy efficiency class ∗

Energy rating ∗∗

Model

Panel color

Height (mm)

Depth (mm)

Height (mm)

Width (mm)

Depth (mm)

Gas side (mm)

Drain port (mm)

562CT-E 802CT-E 1102CT-E 1402CT-E

562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E

5.0 7.1 10.0 12.5

5.6 8.0 11.2 14.0

1 phase 230V (220 – 240V) 50Hz

6.61 – 6.06 9.47 – 8.93 12.51 – 11.47 17.30 – 15.86

1.41 2.1 2.67 3.73

97 98 97 98

3.55 3.38 3.75 3.35

AAAA

7.03 – 6.44 10.20 – 9.35 12.28 – 11.25 16.93 – 15.52

1.50 2.20 2.62 3.65

97 98 97 98

3.73 3.64 4.27 3.84

AAAA

————

15.48 15.90 21.35 21.35

Shine white

—

210 210 210 210

910 1180 1595 1595

680 680 680 680

————

21 25 33 33

————

Finned tube

Centrifugal Centrifugal Centrifugal Centrifugal

13.0/11.2/10.0 18.5/16.7/14.6 27.5/24.0/21.2 30.0/26.0/23.1

60 60 120 120

Attached main unit

RBC-AMT31E, AS21E2, TCB-SC642TLE2, AX21UCE2

36 / 33 / 30 38 / 36 / 33 41 / 38 / 36 43 / 40 / 37

51 / 48 / 45 53 / 51 / 48 56 / 53 / 50 58 / 55 / 52

12.7 15.9 15.9 15.9

6.4 9.5 9.5 9.5

VP25

– 15 –

∗ : IEC standard, ∗∗ : AS standard

Page 16

Indoor unit 1 RAV- SM562CT-E SM802CT-E

Model Indoor unit 2 RAV- SM562CT-E SM802CT-E

Outdoor unit RAV- SP1104AT(Z)(ZG)-E SP1404A(Z)(ZG)-E

Cooling capacity (kW) 10.0 12.5

Heating capacity (kW) 11.2 14.0

Indoor unit

Power supply 1 phase 230V (220 – 240V) 50Hz

Running current (A) 12.51 – 11.47 17.30 – 15.86

Power consumption (kW) 2.67 3.73

Cooling Power factor (%) 97 98

EER 3.75 3.35

Electrical characteristics

Heating Power factor (%) 97 98

Fan Centrifugal Centrifugal

Fan unit Standard air flow H/M/L (m³/min.) 13.0 / 11.2 / 10.0 18.5 / 16.7 / 14.6

Motor (W) 60 60

Sound pressure level H/M/L (dB•A) 36 / 33 / 30 38 / 36 / 33

Sound power level H/M/L (dB•A) 51 / 48 / 45 53 / 51 / 48

Power supply 1 phase 230V (220 – 240V) 50Hz

Standard length (m) 7.5 7.5

Min. length (m) 3 3

Outer dimension

Max. total length (m) 50 50

Over 30m 40g/m (31m to 50m) 40g/m (31m to 50m)

Energy efficiency class ∗ AA

Running current (A) 12.28 – 11.25 16.93 – 15.52

Power consumption (kW) 2.62 3.65

COP 4.27 3.84

Energy efficiency class ∗ AA

Outdoor unit

Height difference

Fan Propeller fan Propeller fan

Fan unit Standard air flow volume (m³/min.) 101 103

Motor (W) 100 + 100 100 + 100

Gas side

Connecting pipe

Liquid side

Sound pressure level Cooling/Heating (dB•A) 49 / 50 51 / 52

Sound power level Cooling/Heating (dB•A) 66 / 67 68 / 69

Outdoor lower (m) 30 30

Outdoor higher (m) 30 30

Main (mm) 15.9 15.9

Sub (mm) 12.7 15.9

Main (mm) 9.5 9.5

Sub (mm) 6.4 9.5

∗ : IEC standard

– 16 –

Page 17

1-1-4. High Wall Type

Model

Cooling capacity (kW)

Heating capacity (kW)

Power supply

Electrical characteristics

Appearance

Outer dimension

Total weight

Heat exchanger

Fan unit Standard air flow H/M/L (m³/min.)

Air filter

Controller (Sold separately)

Sound pressure level H/M/L (dB•A)

Sound power level H/M/L (dB•A)

Connecting pipe Liquid side (mm)

Indoor unit RAV-

Outdoor unit RAV-

Running current (A)

Power consumption(kW)

Cooling

Heating

Maximum current

Main unit

Ceiling panel (Sold separately)

Main unit Width (mm)

Ceiling panel (Sold separately)

Main unit (kg)

Ceiling panel (Sold separately) (kg)

Fan

Motor (W)

Power factor (%)

EER

Energy efficiency class ∗

Energy rating ∗∗

Running current (A)

Power consumption(kW)

Power factor (%)

COP

Energy efficiency class ∗

Energy rating ∗∗

Model

Panel color

Height (mm)

Depth (mm)

Height (mm)

Width (mm)

Depth (mm)

Gas side (mm)

Drain port (mm)

SM562KRT-E SM802KRT-E

SP562AT(Z)(ZG)-E SP802AT(Z)(ZG)-E

5.0 6.9

5.6 8.0

1 phase 230V (220 – 240V) 50Hz

8.33 – 7.63 13.15 – 12.05

1.39 2.4

95 94

3.60 2.88

——

8.14 – 7.46 12.91 – 11.84

1.55 2.4

95 94

3.61 3.33

——

15.34 15.47

Pure white

—

298 298

998 998

221 221

——

12 12

——

Finned tube

Cross flow fan Cross flow fan

14.0 / 12.5 / 10.7 18.5 / 14.6 / 12.2

30 30

Attached main unit

RBC-AMT31E, AS21E2, TCB-SC642TLE2, AX21UCE2

(FCU comes with WH-H2UE)

39 / 36 / 33 45 / 41 / 36

54 / 51 / 48 60 / 56 / 51

12.7 15.9

6.4 9.5

VP16

– 17 –

∗ : IEC standard, ∗∗ : AS standard

Page 18

Indoor unit 1 RAV- SM562KRT-E SM802KRT-E

Model Indoor unit 2 RAV- SM562KRT-E SM802KRT-E

Outdoor unit RAV- SP1104AT(Z)(ZG)-E SP1404AT(Z)(ZG)-E

Cooling capacity (kW) 10.0 12.3

Heating capacity (kW) 11.2 14.0

Indoor unit

Power supply 1 phase 230V (220 – 240V) 50Hz

Running current (A) 12.98 – 11.90 18.00 – 16.50

Power consumption (kW) 2.77 3.88

Cooling Power factor (%) 97 98

EER 3.61 3.17

Electrical characteristics

Heating Power factor (%) 97 98

Fan Cross flow fan Cross flow fan

Fan unit Standard air flow H/M/L (m³/min.) 14.0 / 12.5 / 10.7 18.5 / 14.6 / 12.2

Motor (W) 30 30

Sound pressure level H/M/L (dB•A) 39 / 36 / 33 45 / 41 / 36

Sound power level H/M/L (dB•A) 54 / 51 / 48 60 / 56 / 51

Power supply 1 phase 230V (220 – 240V) 50Hz

Standard length (m) 7.5 7.5

Min. length (m) 3 3

Outer dimension

Max. total length (m) 50 50

Over 30m 40g/m (31m to 50m) 40g/m (31m to 50m)

Energy efficiency class ∗ AB

Running current (A) 13.12 – 12.03 17.76 – 16.28

Power consumption (kW) 2.80 3.83

COP 4.00 3.66

Energy efficiency class ∗ AA

Outdoor unit

Height difference

Fan Propeller fan Propeller fan

Fan unit Standard air flow volume (m³/min.) 101 103

Motor (W) 100 + 100 100 + 100

Gas side

Connecting pipe

Liquid side

Sound pressure level Cooling/Heating (dB•A) 49 / 50 51 / 52

Sound power level Cooling/Heating (dB•A) 66 / 67 68 / 69

Outdoor lower (m) 30 30

Outdoor higher (m) 30 30

Main (mm) 15.9 15.9

Sub (mm) 12.7 15.9

Main (mm) 9.5 9.5

Sub (mm) 6.4 9.5

∗ : IEC standard

– 18 –

Page 19

1-1-5. Compact 4-Way Cassette (600 × 600) Type

Model

Cooling capacity (kW)

Heating capacity (kW)

Power supply

Electrical characteristics

Appearance

Outer dimension

Total weight

Heat exchanger

Fan unit Standard air flow H/M/L (m³/min.)

Air filter

Controller (Sold separately)

Sound pressure level H/M/L (dB•A)

Sound power level H/M/L (dB•A)

Connecting pipe Liquid side (mm)

Indoor unit

Outdoor unit

Running current (A)

Power consumption(kW)

Cooling

Heating

Maximum current

Main unit

Ceiling panel (Sold separately)

Main unit Width (mm)

Ceiling panel (Sold separately)

Main unit (kg)

Ceiling panel (Sold separately) (kg)

Fan

Motor (W)

Power factor (%)

EER

Energy efficiency class

Energy rating

Running current (A)

Power consumption(kW)

Power factor (%)

COP

Energy efficiency class

Energy rating

Model

Panel color

Height (mm)

Depth (mm)

Height (mm)

Width (mm)

Depth (mm)

Gas side (mm)

Drain port (mm)

RAV-SM562MUT-E

RAV-SP562AT(Z)(ZG)-E

5.0

5.6

1 phase 230V

6.6 – 7.15

1.53

3.27

4.5

6.62 – 7.21

1.54

3.64

4.5

15.53

Zinc hot dipping steel plate

RBC-UM11PG(W)-E

Moon-white (Muncel 2.5GY 9.0 / 0.5)

268

575

700

Finned tube

Turbo fan

13.3 / 11.2 / 9.1

—

As per enclosure

43 / 39 / 34

58 / 54 / 49

12.7

6.4

VP25

– 19 –

Page 20

Indoor unit 1 RAV- SM562MUT-E

Model Indoor unit 2 RAV- SM562MUT-E

Outdoor unit RAV- SP1104(Z)(ZG)-E

Cooling capacity (kW) 10.0

Heating capacity (kW) 11.2

Indoor unit

Power supply 1 phase 230V (220 – 240V) 50Hz

Running current (A) 12.51 – 11.47

Power consumption (kW) 2.67

Cooling Power factor (%) 97

EER 3.75

Electrical characteristics

Heating Power factor (%) 97

Fan Turbo fan

Fan unit Standard air flow H/M/L (m³/min.) 13.3 / 11.2 / 9.1

Motor (W) 60

Sound pressure level H/M/L (dB•A) 43 / 39 / 34

Sound power level H/M/L (dB•A) 58 / 54 / 49

Power supply 1 phase 230V (220 – 240V) 50Hz

Standard length (m) 7.5

Min. length (m) 3

Outer dimension

Max. total length (m) 50

Over 30m 40g/m (31m to 50m)

Energy efficiency class ∗ A

Running current (A) 12.51 – 11.47

Power consumption (kW) 2.67

COP 4.19

Energy efficiency class ∗ A

Outdoor unit

Height difference

Fan Propeller fan

Fan unit Standard air flow volume (m³/min.) 101

Motor (W) 100 + 100

Gas side Connecting pipe

Liquid side

Sound pressure level Cooling/Heating (dB•A) 49 / 50

Sound power level Cooling/Heating (dB•A) 66 / 67

Outdoor lower (m) 30

Outdoor higher (m) 30

Main (mm) 15.9

Sub (mm) 12.7

Main (mm) 9.5

Sub (mm) 6.4

– 20 –

∗ : IEC standard

Page 21

1-2. Outdoor Unit

Model name Outdoor unit RAV-SP

Power supply

Type

Compressor Motor (kW)

Pole

Refrigerant charged (kg)

Refrigerant control

Standard length (m)

Max. total length (m)

Inter connecting pipe

Outer dimension Width (mm)

Additional refrigerant charge under long piping connector

Height difference

Height (mm)

Outdoor lower (m)

Outdoor higher (m)

562AT(Z)(ZG)-E 802AT(Z)(ZG)-E 1104AT(Z)(ZG)-E 1404AT(Z)(ZG)-E

1 phase 230V (220 – 240V) 50Hz

(Power exclusive to outdoor is required.)

Hermetic compressor

2 2 3.75 3.75

4444

1.5 2.1 3.1 3.1

Pulse motor valve

7.5 7.5 7.5 7.5

50 50 75 75

20g/m 40g/m 40g/m 40g/m

(21m to 50m) (31m to 50m) (31m to 75m) (31m to 75m)

30 30 30 30

795 795 1340 1340

900 900 900 900

Depth (mm)

Appearance

Total weight (kg)

Heat exchanger

Fan

Fan unit Standard air flow (m³/h)

Motor (W)

Gas side (mm)

Connecting pipe

Liquid side (mm)

Sound pressure level Cooling/Heating (dB•A)

Sound power level Cooling/Heating (dB•A)

Outside air temperature, Cooling (°C)

Outside air temperature, Heating (°C)

320 320 320 320

Silky shade (Muncel 1Y8.5/0.5)

55 62 93 93

Finned tube

Propeller fan

57 57 101 103

63 63 100 + 100 100 + 100

12.7 15.9 15.9 15.9

6.4 9.5 9.5 9.5

46 / 47 47 / 49 49 / 50 51 / 52

63 / 64 64 / 66 66 / 67 68 / 69

43 to –15°C

15 to –15°C 15 to –20°C

– 21 –

Page 22

1-3. Operation Characteristic Curve

• Operation characteristic curve <Super Digital Inverter>

RAV-SP1104AT-E, SP1404AT-E / RAV-SP1104ATZ-E, SP1404ATZ-E / RAV-SP1104ATZG-E, SP1404ATZG-E

RAV-SP1404

Current (A)

RAV-SP1104

020406080

• Conditions Indoor : DB27˚C/WB19˚C Outdoor : DB35˚C Air flow : High Pipe length : 7.5m 230V

Compressor speed (rps)

RAV-SP1104

RAV-SP1404

Current (A)

020406080

• Conditions Indoor : DB20˚C Outdoor : DB7˚C/WB6˚C Air flow : High Pipe length : 7.5m 230V

Compressor speed (rps)

• Capacity variation ratio according to temperature

RAV-SP1104AT-E, SP1404AT-E / RAV-SP1104ATZ-E, SP1404ATZ-E / RAV-SP1104ATZG-E, SP1404ATZG-E

105

100

Capacity ratio (%)

32 33 34 35 36 37 38 39

• Conditions Indoor : DB27˚C/WB19˚C Indoor air flow : High Pipe length : 7.5m

41 42 43

120

110

100

Capacity ratio (%)

-14-16-18-20 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10

• Conditions Indoor : DB20˚C Indoor air flow : High Pipe length : 7.5m

Outdoor temp. (˚C)

– 22 –

Page 23

2-1. Indoor Unit

RAV-SM564UT-E

2. CONSTRUCTION VIEWS (EXTERNAL VIEWS)

Take-in port of wiring

112

172

Refrigerant pipe connecting port Ø6.4 (Liquid side)

Refrigerant pipe connecting port Ø12.7 (Gas side)

Bottom face of ceiling

129

10 5 74

Ø162

860 to 910 Ceiling open dimension

157

106.5

72 241.5

Electric parts box

950 Panel external dimension

105

397.5

780 Hanging bolt pitch

105 337.5

263

323

15 or more

1000 or more

15 or more

The space that is necessary

for equipping and service

860 to 910 Ceiling open dimension

Bottom face of ceiling

129

189

Drain pipe connecting port (Meterial : PP)

For branch duct knockout square hole Ø150

Hanging bolt M10 or Ø3/8(procured by locally)

Drain upstanding size

256

132

300

1000 or more

Standing

Bottom face of ceilingIndoor unit

An obstacle

661 or less

Standing

850 or less

105

Ø162

For branch duct knockout square hole Ø150 (2 positions)

For branch duct knockout square hole Ø150

Bottom face of ceiling

240

408

135105207.5 105 287.5

840 Unit external dimension

269

840 Unit external dimension

362.5 105 372.5

7477

105

129

416.5

690 ± 20 Hanging bolt pitch

45˚

950 Panel external dimension

155

187

Indoor unit

28.5

Bottom face of ceiling

105

384 351

129

105 77

Bottom face of ceiling

For branch duct knockout square hole Ø150

16.5

Ceiling panel (sold separately)

Bottom face of ceiling

Knockout for simple 0A for Ø100

Z view

Unit : mm

– 23 –

Page 24

RAV-SM804UT-E

Take-in port of wiring Bottom face of ceiling

112

172

Refrigerant pipe connecting port Ø9.5 (Liquid side)

Refrigerant pipe connecting port Ø15.9 (Gas side)

Bottom face of ceiling

129 77

10 5 74

Ø162

860 to 910 Ceiling open dimension

157

106.5

72 241.5

Electric parts box

74 105

397.5

950 Panel external dimension

780 Hanging bolt pitch

105 337.5

263

For branch duct knockout square hole Ø150

323

1000 or more

15 or more

1000 or more

15 or more

1000 or more

The space that is necessary

for equipping and service

860 to 910 Ceiling open dimension

129

189

Drain pipe connecting port (Meterial : PP)

Hanging bolt M10 or Ø3/8 (procured by locally)

300

Bottom face of ceilingIndoor unit

Drain upstanding size

256

132

An obstacle

Standing

661 or less

Standing

850 or less

105

Ø162

For branch duct knockout square hole Ø150 (2 positions)

For branch duct knockout square hole Ø150

Bottom face of ceiling

240

408

135105207.5 105 287.5

840 Unit external dimension

269

840 Unit external dimension

362.5 105 372.5

7477

105

129

416.5

105

690 ± 20 Hanging bolt pitch

45˚

950 Panel external dimension

28.5

187

Indoor unit

384 351

155

Bottom face of ceiling

129

For branch duct

105 77

Knockout for simple 0A for Ø100

knockout square hole Ø150

16.5

Ceiling panel (sold separately)

Bottom face of ceiling

Z view

– 24 –

Bottom face of ceiling

Unit : mm

Page 25

RAV-SM1104UT-E, RAV-SM1404UT-E

860 to 910 Ceiling open dimension

129

189

105

105384 351

137

16.5

129

132

319

397.5

157

106.5

72 241.5

263

105 337.5

Bottom face of ceiling

For branch duct knockout square hole Ø150

Ceiling panel (sold separately)

Bottom face of ceiling

240

135105207.5 105 287.5

840 Unit external dimension

129

10 5 137

Hanging bolt M10 or Ø3/8 (procured by locally)

For branch duct knockout square hole Ø150

Drain pipe connecting port (Meterial : PP)

137 105

Bottom face of ceiling

112

172

Take-in port of wiring

Refrigerant pipe connecting port Ø9.5 (Liquid side)

Refrigerant pipe connecting port Ø15.9 (Gas side)

For branch duct knockout square hole Ø150 (2 positions)

An obstacle

Standing

850 or less

300

Standing

661 or less

The space that is necessary

for equipping and service

Drain upstanding size

1000 or more

15 or more

1000 or more

Bottom face of ceilingIndoor unit

Unit : mm

Knockout for simple 0A for Ø100

Bottom face of ceiling

Indoor unit

155

28.5

187

Z view

Ø162

105

950 Panel external dimension

780 Hanging bolt pitch

323

269

950 Panel external dimension

690 ± 20 Hanging bolt pitch

416.5

45˚

408

Electric parts box

840 Unit external dimension

362.5 105 372.5

105

137

For branch duct knockout square hole Ø150

Bottom face of ceiling

129

– 25 –

Page 26

2-2. Outdoor Unit

RAV-SP1104AT-E, RAV-SP1404AT-E / RAV-SP1104ATZ-E, RAV-SP1404ATZ-E / RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

——

Unit : mm

Name Note

Mounting bolt hole

(Ø12 × 17 long hole)

B legs

Drain hole (Ø25)

Refrigerant piping hole

Indoor/Outdoor unit

connecting wire inlet hole

Power supply inlet hole Ø38 Kockout hole

Mounting bolt hole

(Ø12 × 17 U-shape hole)

A legs

54 48

170

320

Details of A legs Details of B legs

Refrigerant pipe

connecting port

(Ø9.5 flare at liquid side)

Refrigerant pipe

connecting port

(Ø15.9 flare at gas side)

1340

55 95

1 1

613

605

155

55 95

380

200 60

port

Air inlet

Air inlet port

128

365 17.5

118

Air outlet

port

383

150 600

17.5

900

550

Drain hole (Ø28 × 88)

– 26 –

121 53453485

655

360

178 178 80 18 8018

327 400

178

68 518 135 151 12

70 74581 581

Knockout for downward piping

65 7

83 7

Z views

Page 27

RAV-TWP30E2, RAV-TWP50E2 (Simultaneous Twin)

Inner diameter Ø C

Inner

diameter Ø D

TWP30E2

TWP50E2

Model (RBC-)

Liquid side

Gas side

Liquid side

Gas side

Inner

diameter Ø D

ABCD

36 14 Ø9.5 Ø6.4

43 23 Ø15.9 Ø12.7

34 14 Ø9.5 Ø9.5

44 21 Ø15.9 Ø15.9

– 27 –

Page 28

3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM

3-1. Indoor Unit

• Single type (Combination of 1 indoor unit and 1 outdoor unit)

Distributor (Strainer incorporated)

TC sensor

Refrigerant pipe at liquid side (Outer dia : ØB)

To outdoor unit To outdoor unit

(Indoor unit)

TCJ sensor

Air heat

exchanger

Strainer

Refrigerant pipe at gas side (Outer dia : ØA)

Dimension table Capillary tube specifications

Indoor unit

SM56, 80 type

SM110, 140 type

Outer diameter of refrigerant pipe

Gas side ØA Liquid side ØB

12.7 6.4

15.9 9.5

Model AIU-

SM56 type

SM80 type

SM110, 140 type

Inner dia. × Length × Q’ty

Ø2 × 250 × 2, Ø2 × 350 × 1 Ø2 × 700 × 1

Ø2 × 250 × 3, Ø2 × 500 × 1

Ø2 × 200 × 1, Ø2 × 300 × 2 Ø2 × 350 × 2, Ø2 × 700 × 1

• Twin type (Combination of 2 indoor units and 1 outdoor unit)

Distributor (Strainer incorporated)

TC sensor

Refrigerant pipe at liquid side (Outer dia : ØA)

Branch pipe

To outdoor unit

Indoor unit

SM56 × 2

SM80 × 2

(Indoor unit A)

TCJ sensor

Air heat

exchanger

Refrigerant pipe at liquid side (Outer dia : ØC)

Branch pipe RBC-

TWP30E2

TWP50E2

Strainer

Refrigerant pipe at gas side (Outer dia : ØB)

ABCD

6.4 12.7 9.5 15.9

9.5 15.9 9.5 15.9

Distributor (Strainer incorporated)

TC sensor

Refrigerant pipe at liquid side (Outer dia : ØA)

Branch pipe

(Indoor unit B)

TCJ sensor

Air heat

exchanger

Refrigerant pipe at liquid side (Outer dia : ØD)

To outdoor unit

Strainer

Refrigerant pipe at gas side (Outer dia : ØB)

– 28 –

Page 29

3-2. Outdoor Unit

RAV-SP1104AT-E, SP1104ATZ-E, SP1104ATZG-E, RAV-SP1404AT-E, SP1404ATZ-E, SP1404ATZG-E

Accumulator

(2500cc)

TS sensor

Check joint

Cooling: High pressure Heating: Low pressure

TD sensor

Rotary compressor

(DA422A3F-25M)

MufflerMuffler

Ø25 × L210

TO sensor

TL sensor

Heat exchanger

Ø8, 2 rows, 52 stages

FP1.45, flat fin

In cooling operation In heating operation

Ø25 × L180

TE sensor

Distributor

Strainer

PMV

Strainer

Capillary Ø4 ×Ø3 (6 pcs.)

Refrigerant pipe at liquid side Ø9.5 Packed valve

Refrigerant pipe at gas side Ø15.9 Ball valve

Cooling: Low pressure Heating: High pressure

3-3. Systematic Diagram of Refrigerating Cycle

RAV-SP1104AT-E, RAV-SP1104ATZ-E, RAV-SP1104ATZG-E

Pressure

(MPa) (kg/cm²g)

Pd Ps Pd Ps

Standard

Cooling Overload

Low load

Standard

Heating Overload

Low load

This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp

2.57 0.99 26.2 10.1

3.30 1.09 33.7 11.1

1.74 0.75 17.8 7.7

2.32 0.73 23.7 7.4

3.22 1.17 32.9 11.9

2.17 0.30 22.1 3.1

Discharge Suction

meter becomes 2 times of No. of compressor revolutions (rps).

RAV-SP1404AT-E, RAV-SP1404ATZ-E, RAV-SP1404ATZG-E

Pressure

Standard

Cooling Overload

Low load

Standard

Heating Overload

Low load

(MPa) (kg/cm²g)

Pd Ps Pd Ps

2.72 0.90 27.8 9.2

3.34 1.07 34.1 10.9

1.75 0.76 17.9 7.8

2.59 0.69 26.4 7.0

3.13 1.05 31.9 10.7

2.40 0.21 24.5 2.1

Discharge Suction

Pipe surface temperature (°C)

Indoor heat Outdoor heat

exchanger exchanger

(TD) (TS) (TC) (TL) (TE)

66 14 12 44 38

78 9 13 49 43

46 7 5 32 25

65 3 39 2 3

73 19 54 14 15

87 –15 38 –14 –13

Pipe surface temperature (°C)

Indoor heat Outdoor heat

exchanger exchanger

(TD) (TS) (TC) (TL) (TE)

73 12 10 46 38

80 9 13 51 45

47 8 6 33 25

75 3 43 2 2

72 16 53 12 13

97 –22 42 –19 –18

Compressor

drive revolution

frequency

(rps)

Compressor

drive revolution

frequency

(rps)

Indoor

fan

HIGH

LOW

HIGH

LOW

HIGH

Indoor

fan

HIGH

LOW

HIGH

LOW

HIGH

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Indoor Outdoor

27/19 35/–

32/24 43/–

18/15.5 –5/–

20/– 7/6

30/– 24/18

15/– –15/–

Indoor/Outdoor

temp. conditions

(DB/WB) (°C)

Indoor Outdoor

27/19 35/–

32/24 43/–

18/15.5 –5/–

20/– 7/6

30/– 24/18

15/– –15/–

This compressor has 4-pole motor. The value when compressor frequency (Hz) is measured by a clamp

meter becomes two times of No. of compressor revolutions (rps).

– 29 –

Page 30

4. WIRING DIAGRAM

4-1. Indoor Unit

RAV-SM564UT-E, RAV-SM804UT-E, RAV-SM1104UT-E, RAV-SM1404UT-E

LM1 LM3 LM2 LM4

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

Indoor unit

earth screw

2 31

RED

WHI

BLK

Serial signal

1 3 5 1 3

CN334

(WHI)

Fuse, F01

T6.3A, 250V~

CN67 (BLK)

P01

BLK

CN66

(WHI)

remote controller

(BLU)

CN333

(WHI)

5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

1 2 3 1 2 1 2 1 2 3 1 2 1 2 34 5

(WHI)

(RED)

CN510

(WHI)

Motor drive

circuit

Fuse, F02

T3.15A, 250V~

–

Control P.C. Board

for Indoor Unit

MCC-1570

CN41 (BLU)

CN32

(T10)

CN61 (YEL)

(WHI)

(Fan drive)

CN309

(YEL)

BLKBLK

CN60

(WHI)

A B

Wired

wireless remote controller

CN001

(WHI)

Adapter for

(BLK)

Powe r

supply

circuit

DC20V DC15V DC12V DC7V

CN50 (WHI)

5 643215 6432131321

CN51

(RED)

321

P.C. board

MCC-1440

Terminal

for central

U3 U4

remote controller

Connection interface

(Option)

CN504

(WHI)

54321 54321

54321 54

21 21

CN34

(RED)

CN104

(YEL)

CN102

(RED)

CN101

(BLK)

CN519

(WHI)

CN508

(RED)

CN80

(GRN)

CN73

(RED)

CN70 (WHI)

CN20 (BLU)

34 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

1 1 2 2

TCJ

1 1 2

1 2 3 4

1 2

1 2 3

(EXCT)

1 2

54321

Signal phase 220–240V~, 50Hz

Outdoor unit

Outdoor unit earth screw

Color

Identification

BLK : BLACK BLU : BLUE RED : RED GRN : GREEN WHI : WHITE YEL : YELLOW

– 30 –

Symbol

TC, TCJ

LM1, LM2, LM3, LM4

Parts name

Fan Motor

Indoor temp. sensor

Temp. sensor

Louver motor

Drain pump Motor

Float Switch

Page 31

4-2. Outdoor Unit (Wiring Diagram)

RAV-SP1104AT-E, RAV-SP1404AT-E / RAV-SP1104ATZ-E, RAV-SP1404ATZ-E / RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

Reactor Reactor

(GRY) (GRY) (WHI) U(WHI)

(RED) (WHI) (BLK)

V W

FM01

FM02

49C

1 1

2 2

1 1

2 2

1 1

2 2

1 1

2 2

1 1

3 3

1 1

2 2

1 1

2 2

1 2 3 4 5 6

CN400

(WHI)

CN300

(WHI)

CN609

(BLU)

CN610

(YEL)

CN604

(WHI)

CN603

(WHI)

CN602

(YEL)

CN601

(WHI)

P04 P05 P06 P07

SW804 SW801 SW800

2 3 4

Control P.C. Board

SW803

SW802

2 3 4

2 3 4 1

MCC-1570

RY704

CN201 CN202CN200

L/F

Fuse, F01

T25A, 250V~

(BLK)

P09

Fuse, F03

T10A, 250V~

1 1

CN600

Symbol

FM01, 02

PMV

TD TS TE

20SF

49C

RY L/F

3 3

CN710

Discharge pipe temp. sensor

Suction pipe temp. sensor Heat exchanger temp. sensor 1 Heat exchanger temp. sensor 2

Compressor case thermostat

(WHI)

1 2 3 4 5 6

(WHI)

1 2 3

Parts name

Compressor

Fan Motor

Pulse Motor Valve

Outside temp. sensor

4-way valve coil

Relay

Line Filter

CN704

(BLU)

1 341 4

Outdoor unit

Indoor unit

CN701

(WHI)

1 4

20SFPMW

screw

CN04

(WHI)

1 7

(GRY)

Earth

1. indicates the terminal block. Alphanumeric characters in the cycle indicate the terminal No.

2. The two-dot chain line indicates the wiring procured locally.

3. indicates the P.C. board.

4. For the indoor unit circuit, refer to the wiring diagram of the indoor unit.

3 5

(WHI)

1 2 3

(RED)

716

(RED) (WHI)

(BLK)

Earth

screw

L N1 2 3

Power supply

220–240V~, 50Hz

Identification

BLK : BLACK BLU : BLUE RED : RED GRY : GRAY WHI : WHITE YEL : YELLOW

P02P01

Color

– 31 –

Page 32

5. SPECIFICATIONS OF ELECTRICAL PARTS

5-1. Indoor Unit

RAV-SM564UT-E, RAV-SM804UT-E

No.

Fan motor (for indoor)

Thermo. sensor (TA-sensor)

Heat exchanger sensor (TCJ-sensor)

Heat exchanger sensor (TC-sensor)

Float switch

Drain pump motor

Parts name

Type

SWF-230-60-2R

328 mm

Ø6 mm, 1000 mm

Ø6 mm, 950 mm

FS-0218-102

MDP-1401

Output (Rated) 60 W

10 kΩ at 25°C

RAV-SM1104UT-E, RAV-SM1404UT-E

No.

Fan motor

Thermo. sensor (TA-sensor)

Heat exchanger sensor (TCJ-sensor)

Heat exchanger sensor (TC-sensor)

Float switch

Drain pump motor

Parts name

Type

ICF-280-150-1

328 mm

Ø6 mm, 1000 mm

Ø6 mm, 950 mm

FS-0218-102

MDP-1401

Output (Rated) 90 W

10 kΩ at 25°C

5-2. Outdoor Unit (Parts Ratings)

RAV-SP1104AT-E, RAV-SP1404AT-E / RAV-SP1104ATZ-E, RAV-SP1404ATZ-E / RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

Specifications

No.

Compressor

Outdoor fan motor

Reactor

4-way valve coil

PMV coil

P.C. board

Fuse (Mounted on P.C. board)

Outdoor temp. sensor (TO sensor)

Heat exchanger sensor (Te sensor)

Discharge temp. sensor (Td sensor)

Heat exchanger mid. Temp sensor (TL sensor)

Compressor thermo. (Protection)

Parts name

Type

DA422A3F-25M

ICF-280-A100-1

CH-62

VHV-01AP552B1

UKV-A038

MCC-1571

—

US-622

5-3. Accessory Separate Sold Parts

RBC-U31PG(WS)-E, RBC-U31PG(W)-E (Ceiling panel) RAV-SM564UT-E, RAV-SM804UT-E, RAV-SM1104UT-E, RAV-SM1404UT-E

Specifications

—

Output 100W

5.7mH, 18.5A

AC240V

DC12V

AC220 – 240V

AC250V, 25A

AC250V, 10A

AC250V, 3.15A

10 kΩ at 25°C

50 kΩ at 25°C

10 kΩ at 25°C

OFF: 125 ± 4°C, ON: 90 ± 5°C

No.

Motor-louver

Parts name

– 32 –

Type

MP24ZN3N

Specifications

DC 12 V

Page 33

6. REFRIGERANT R410A

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

The working pressure of the new refrigerant R410A is 1.6 times higher than conventional refrigerant (R22). The refrigerating oil is also changed in accordance with change of refrigerant, so be careful that water, dust, and existing refrigerant or refrigerating oil are not entered in the refrigerant cycle of the air conditioner using the new refrigerant during installation work or servicing time.

The next section describes the precautions for air conditioner using the new refrigerant.

Conforming to contents of the next section together with the general cautions included in this manual, perform the correct and safe work.

6-1. Safety During Installation/Servicing

As R410A’s pressure is about 1.6 times higher than that of R22, improper installation/servicing may cause a serious trouble. By using tools and materials exclusive for R410A, it is necessary to carry out installation/servicing safely while taking the following precautions into consideration.

1. Never use refrigerant other than R410A in an air conditioner which is designed to operate with R410A.

If other refrigerant than R410A is mixed, pressure in the refrigeration cycle becomes abnormally high, and it may cause personal injury, etc. by a rupture.

2. Confirm the used refrigerant name, and use tools and materials exclusive for the refrigerant R410A.

The refrigerant name R410A is indicated on the visible place of the outdoor unit of the air conditioner using R410A as refrigerant.

To prevent mischarging, the diameter of the service port differs from that of R22.

3. If a refrigeration gas leakage occurs during installation/servicing, be sure to ventilate fully.

If the refrigerant gas comes into contact with fire, a poisonous gas may occur.

4. When installing or removing an air conditioner, do not allow air or moisture to remain in the refrigeration cycle.

Otherwise, pressure in the refrigeration cycle may become abnormally high so that a rupture or personal injury may be caused.

5. After completion of installation work, check to make sure that there is no refrigeration gas leakage.

If the refrigerant gas leaks into the room, coming into contact with fire in the fan-driven heater, space heater, etc., a poisonous gas may occur.

6. When an air conditioning system charged with a large volume of refrigerant is installed in a small room, it is necessary to exercise care so that, even when refrigerant leaks, its concentration does not exceed the marginal level.

If the refrigerant gas leakage occurs and its concentration exceeds the marginal level, an oxygen starvation accident may result.

7. Be sure to carry out installation or removal according to the installation manual.

Improper installation may cause refrigeration trouble, water leakage, electric shock, fire, etc.

8. Unauthorized modifications to the air conditioner may be dangerous. If a breakdown occurs please call a qualified air conditioner technician or electrician.

Improper repair’s may result in water leakage, electric shock and fire, etc.

6-2. Refrigerant Piping Installation

6-2-1. Piping Materials and Joints Used

For the refrigerant piping installation, copper pipes and joints are mainly used.

Copper pipes and joints suitable for the refrigerant must be chosen and installed.

Furthermore, it is necessary to use clean copper pipes and joints whose interior surfaces are less affected by contaminants.

1. Copper Pipes It is necessary to use seamless copper pipes

which are made of either copper or copper alloy and it is desirable that the amount of residual oil is less than 40 mg/10 m.

Do not use copper pipes having a collapsed, deformed or discolored portion (especially on the interior surface).

Otherwise, the expansion valve or capillary tube may become blocked with contaminants.

As an air conditioner using R410A incurs pressure higher than when using R22, it is necessary to choose adequate materials.

Thicknesses of copper pipes used with R410A are as shown in Table 6-2-1. Never use copper pipes thinner than 0.8mm even when it is available on the market.

NOTE:

Refer to the “6-6. Instructions for Re-use Piping of R22 or R407C”.

– 33 –

Page 34

Table 6-2-1 Thicknesses of annealed copper pipes

Thickness (mm)

Nominal diameter

1/4

3/8

1/2

5/8

1. Joints For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants. a) Flare Joints

Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm. In such a case, socket joints can be used.

Sizes of flare pipe ends, flare joint ends and flare nuts are as shown in Tables 6-2-3 to 6-2-5 below.

b) Socket Joints

Socket joints are such that they are brazed for connections, and used mainly for thick pipings whose diameter is larger than 20 mm. Thicknesses of socket joints are as shown in Table 6-2-2.

Outer diameter (mm)

6.4

9.5

12.7

15.9

Table 6-2-2 Minimum thicknesses of socket joints

R410A R22

0.80 0.80

1.00 1.00

Nominal diameter

1/4

3/8

1/2

5/8

Reference outer diameter of

copper pipe jointed (mm)

6.4

9.5

12.7

15.9

Minimum joint thickness

(mm)

0.50

0.60

0.70

0.80

6-2-2. Processing of Piping Materials

When performing the refrigerant piping installation, care should be taken to ensure that water or dust does not enter the pipe interior, that no other oil other than lubricating oils used in the installed air conditioner is used, and that refrigerant does not leak. When using lubricating oils in the piping processing, use such lubricating oils whose water content has been removed. When stored, be sure to seal the container with an airtight cap or any other cover.

1. Flare Processing Procedures and Precautions a) Cutting the Pipe

By means of a pipe cutter, slowly cut the pipe so that it is not deformed.

b) Removing Burrs and Chips

If the flared section has chips or burrs, refrigerant leakage may occur. Carefully remove all burrs and clean the cut surface before installation.

– 34 –

Page 35

c) Insertion of Flare Nut d) Flare Processing

Make certain that a clamp bar and copper pipe have been cleaned. By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R410A or conventional flare tool. Flare processing dimensions differ according

to the type of flare tool. When using a conventional flare tool, be sure

to secure “dimension A” by using a gauge for size adjustment.

Table 6-2-3 Dimensions related to flare processing for R410A / R22

Nominal

diameter

Outer

diameter

(mm)

Thickness

(mm)

Flare tool for

R410A, R22

clutch type

Conventional flare tool

Clutch type Wing nut type

ØD

Fig. 6-2-1 Flare processing dimensions

A (mm)

Conventional flare tool

(R410A)

Clutch type Wing nut type

(R22)

1/4

3/8

1/2

5/8

Nominal

diameter

1/4

3/8

1/2

5/8

6.4

9.5

12.7

15.9

Table 6-2-4 Flare and flare nut dimensions for R410A

Outer diameter

(mm)

6.4

9.5

12.7

15.9

0.8

1.0

0 to 0.5

Thickness

(mm)

0.8

1.0

1.0 to 1.5 1.5 to 2.0

1.0 to 1.5 2.0 to 2.5

Dimension (mm)

ABCD

9.1 9.2 6.5 13 17

13.2 13.5 9.7 20 22

16.6 16.0 12.9 23 26

19.7 19.0 16.0 25 29

Table 6-2-5 Flare and flare nut dimensions for R22

0.5 to 1.0 1.0 to 1.5

0.5 to 1.0 1.5 to 2.0

Flare nut width

(mm)

Nominal

diameter

1/4

3/8

1/2

5/8

3/4

Outer diameter

(mm)

6.4

9.5

12.7

15.9

19.0

Thickness

(mm)

0.8

1.0

Dimension (mm)

ABCD

9.1 9.2 6.5 13 17

13.0 13.5 9.7 20 22

16.2 16.0 12.9 20 24

19.4 19.0 16.0 23 27

23.3 24.0 19.2 34 36

– 35 –

Flare nut width

(mm)

Page 36

45˚to 46˚

B A

43˚to 45˚

Fig. 6-2-2 Relations between flare nut and flare seal surface

2. Flare Connecting Procedures and Precautions a) Make sure that the flare and union portions do not have any scar or dust, etc. b) Correctly align the processed flare surface with the union axis. c) Tighten the flare with designated torque by means of a torque wrench. The tightening torque for R410A is

the same as that for conventional R22. Incidentally, when the torque is weak, the gas leakage may occur. When it is strong, the flare nut may crack and may be made non-removable. When choosing the tighten-

ing torque, comply with values designated by manufacturers. Table 6-2-6 shows reference values.

NOTE:

When applying oil to the flare surface, be sure to use oil designated by the manufacturer. If any other oil is used, the lubricating oils may deteriorate and cause the compressor to burn out.

Nominal

diameter

1/4

3/8

1/2

5/8

Table 6-2-6 Tightening torque of flare for R410A [Reference values]

Outer diameter

(mm)

6.4

9.5

12.7

15.9

Tightening torque

N•m (kgf•m)

14 to 18 (1.4 to 1.8)

33 to 42 (3.3 to 4.2)

50 to 62 (5.0 to 6.2)

63 to 77 (6.3 to 7.7)

Tightening torque of torque

wrenches available on the market

N•m (kgf•m)

16 (1.6), 18 (1.8)

42 (4.2)

55 (5.5)

65 (6.5)

– 36 –

Page 37

6-3. Tools

6-3-1. Required Tools

Refer to the “4. Tools” (Page 8)

6-4. Recharging of Refrigerant

When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps.

Recover the refrigerant, and check no refrigerant remains in the equipment.

Connect the charge hose to packed valve service port at the outdoor unit’s gas side.

When the compound gauge’s pointer has indicated –0.1 Mpa (–76 cmHg), place the handle Low in the fully closed position, and turn off the vacuum pump’s power switch.

Connect the charge hose of the vacuum pump adapter.

Open fully both packed valves at liquid and gas sides.

Place the handle of the gauge manifold Low in the fully opened position, and turn on the vacuum pump’s power switch. Then, evacuating the refrigerant in the cycle.

Keep the status as it is for 1 to 2 minutes, and ensure that the compound gauge’s pointer does not return.

Set the refrigerant cylinder to the electronic balance, connect the connecting hose to the cylinder and the connecting port of the electronic balance, and charge

liquid refrigerant.

(For refrigerant charging, see the figure below.)

1) Never charge refrigerant exceeding the specified amount.

2) If the specified amount of refrigerant cannot be charged, charge refrigerant bit by bit in COOL mode.

3) Do not carry out additional charging. When additional charging is carried out if refrigerant leaks, the refrigerant composition changes in the refrigeration cycle, that is characteristics of the air conditioner changes, refrigerant exceeding the specified amount is charged, and working pressure in the refrigeration cycle becomes abnormally high pressure, and may cause a rupture or personal injury.

(INDOOR unit)

Refrigerant cylinder

(With siphon pipe)

Check valve

Open/Close valve

for charging

Electronic balance for refrigerant charging

Fig. 6-4-1 Configuration of refrigerant charging

(Liquid side)

(Gas side)

– 37 –

(OUTDOOR unit)

Opened

Closed

Service port

Page 38

1) Be sure to make setting so that liquid can be charged.

2) When using a cylinder equipped with a siphon, liquid can be charged without turning it upside down.

It is necessary for charging refrigerant under condition of liquid because R410A is mixed type of refrigerant. Accordingly, when charging refrigerant from the refrigerant cylinder to the equipment, charge it turning the cylinder upside down if cylinder is not equipped with siphon.

[ Cylinder with siphon ] [ Cylinder without siphon ]

Refrigerant

cylinder

Gauge manifold

OUTDOOR unit

cylinder

Refrigerant

Gauge manifold

OUTDOOR unit

Electronic

balance

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

6-5. Brazing of Pipes

6-5-1. Materials for Brazing

1. Silver brazing filler

Silver brazing filler is an alloy mainly composed of silver and copper. It is used to join iron, copper or copper alloy, and is relatively expensive though it excels in solderability.

2. Phosphor bronze brazing filler

Phosphor bronze brazing filler is generally used to join copper or copper alloy.

Fig. 6-4-2

6-5-2. Flux

Electronic

balance

Siphon

1) Phosphor bronze brazing filler tends to react with sulfur and produce a fragile compound water solution, which may cause a gas leakage. Therefore, use any other type of brazing filler at a hot spring resort, etc., and coat the surface with a paint.

2) When performing brazing again at time of servicing, use the same type of brazing filler.

3. Low temperature brazing filler

Low temperature brazing filler is generally called solder, and is an alloy of tin and lead. Since it is weak in adhesive strength, do not use it for refrigerant pipes.

1. Reason why flux is necessary

• By removing the oxide film and any foreign matter on the metal surface, it assists the flow of brazing filler.

• In the brazing process, it prevents the metal surface from being oxidized.

• By reducing the brazing filler's surface tension, the brazing filler adheres better to the treated metal.

– 38 –

Page 39

2. Characteristics required for flux

• Activated temperature of flux coincides with the brazing temperature.

• Due to a wide effective temperature range, flux is hard to carbonize.

• It is easy to remove slag after brazing.

• The corrosive action to the treated metal and brazing filler is minimum.

• It excels in coating performance and is harmless to the human body.

As the flux works in a complicated manner as described above, it is necessary to select an adequate type of flux according to the type and shape of treated metal, type of brazing filler and brazing method, etc.

3. Types of flux

• Noncorrosive flux

Generally, it is a compound of borax and boric acid. It is effective in case where the brazing temperature is higher than 800°C.

• Activated flux

Most of fluxes generally used for silver brazing are this type. It features an increased oxide film removing capability due to the addition of compounds such as potassium fluoride, potassium chloride and sodium fluoride to the borax-boric acid compound.

4. Piping materials for brazing and used brazing filler/flux

6-5-3. Brazing

As brazing work requires sophisticated techniques, experiences based upon a theoretical knowledge, it must be performed by a person qualified.

In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry Nitrogen gas flow.

Never use gas other than Nitrogen gas.

1. Brazing method to prevent oxidation

1) Attach a reducing valve and a flow-meter to the Nitrogen gas cylinder.

2) Use a copper pipe to direct the piping material, and attach a flow-meter to the cylinder.

3) Apply a seal onto the clearance between the piping material and inserted copper pipe for Nitrogen in order to prevent backflow of the Nitrogen gas.

4) When the Nitrogen gas is flowing, be sure to keep the piping end open.

5) Adjust the flow rate of Nitrogen gas so that it is lower than 0.05 m³/Hr or 0.02 MPa (0.2kgf/cm²) by means of the reducing valve.

6) After performing the steps above, keep the Nitrogen gas flowing until the pipe cools down to a certain extent (temperature at which pipes are touchable with hands).

7) Remove the flux completely after brazing.

Piping

material

Copper - Copper

Copper - Iron

Iron - Iron

1) Do not enter flux into the refrigeration cycle.

2) When chlorine contained in the flux remains within the pipe, the lubricating oil deteriorates. Therefore, use a flux which does not contain chlorine.

3) When adding water to the flux, use water which does not contain chlorine (e.g. distilled water or ion-exchange water).

4) Remove the flux after brazing.

Used brazing

filler

Phosphor copper

Silver

Used

flux

Do not use

Paste flux

Vapor flux

Flow meter

Stop valve

Nitrogen gas

cylinder

From Nitrogen cylinder

Pipe

Nitrogen gas

Rubber plug

Fig. 6-5-1 Prevention of oxidation during brazing

– 39 –

Page 40

6-6. Instructions for Re-use Piping of R22 or R407C

Instruction of Works: The existing R22 and R407C piping can be reused for our digital inverter R410A products installations.

NOTE)

Confirmation of existence of scratch or dent of the former pipes to be applied and also confirmation of reliability of the pipe strength are conventionally referred to the local site.

If the definite conditions can be cleared, it is possible to update the existing R22 and R407C pipes to those for R410A models.

6-6-1. Basic Conditions Need to Reuse the

Existing Pipe

Check and observe three conditions of the refrigerant piping works.

1. Dry (There is no moisture inside of the pipes.)

2. Clean (There is no dust inside of the pipes.)

3. Tight (There is no refrigerant leak.)

6-6-2. Restricted Items to Use the Existing Pipes

In the following cases, the existing pipes cannot be reused as they are. Clean the existing pipes or exchange them with new pipes.

1. When a scratch or dent is heavy, be sure to use the new pipes for the works.

2. When the thickness of the existing pipe is thinner than the specified “Pipe diameter and thickness” be sure to use the new pipes for the works.

• The operating pressure of R410A is high

(1.6 times of R22 and R407C). If there is a scratch or dent on the pipe or thinner pipe is used, the pressure strength is poor and may cause breakage of the pipe at the worst.

* Pipe diameter and thickness (mm)

Pipe outer diameter

R410A

Thickness

• In case that the pipe diameter is Ø12.7 mm or less

and the thickness is less than 0.7 mm, be sure to use the new pipes for works.

3. The pipes are left as coming out or gas leaks. (Poor refrigerant)

• There is possibility that rain water or air including

moisture enters in the pipe.

4. Refrigerant recovery is impossible. (Refrigerant recovery by the pump-down operation on the existing air conditioner)

R22

(R407C)

Ø6.4 Ø9.5 Ø12.7 Ø15.9 Ø19.0

0.8 0.8 0.8 1.0 1.0

• There is possibility that a large quantity of poor

oil or moisture remains inside of the pipe.

5. A dryer on the market is attached to the existing pipes.

• There is possibility that copper green rust gener-

ated.

6. Check the oil when the existing air conditioner was removed after refrigerant had been recovered. In this case, if the oil is judged as clearly different compared with normal oil

• The refrigerator oil is copper rust green :

There is possibility that moisture is mixed with the oil and rust generates inside of the pipe.

• There is discolored oil, a large quantity of the

remains, or bad smell.

• A large quantity of sparkle remained wear-out

powder is observed in the refrigerator oil.

7. The air conditioner which compressor was exchanged due to a faulty compressor. When the discolored oil, a large quantity of the remains, mixture of foreign matter, or a large quantity of sparkle remained wear-out powder is observed, the cause of trouble will occur.

8. Installation and removal of the air conditioner are repeated with temporary installation by lease and etc.

9. In case that type of the refrigerator oil of the existing air conditioner is other than the following oil (Mineral oil), Suniso, Freol-S, MS (Synthetic oil), alkyl benzene (HAB, Barrel-freeze), ester series, PVE only of ether series.

• Winding-insulation of the compressor may

become inferior.

NOTE)

The above descriptions are results of confirmation by our company and they are views on our air conditioners, but they do not guarantee the use of the existing pipes of the air conditioner that adopted R410A in other companies.

6-6-3. Branching Pipe for Simultaneous

Operation System

• In the concurrent twin system, when TOSHIBA-

specified branching pipe is used, it can be reused. Branching pipe model name: RBC-TWP30E-2, RBC-TWP50E-2 On the existing air conditioner for simultaneous operation system (twin system), there is a case of using branch pipe that has insufficient compressive strength. In this case please change it to the branch pipe for R410A.

6-6-4. Curing of Pipes

When removing and opening the indoor unit or outdoor unit for a long time, cure the pipes as follows:

• Otherwise rust may generate when moisture or

foreign matter due to dewing enters in the pipes.

• The rust cannot be removed by cleaning, and a new

piping work is necessary.

Place position

Outdoors

Indoors

Term

1 month or more

Less than 1 month

Every time

Curing manner

Pinching

Pinching or taping

– 40 –

Page 41

6-6-5. Final Installation Checks

Is there no scratch or dent on the existing pipes?

Is it possible to operate the existing air conditioner?

YES

* After the existing air conditioner operated in cooling mode

for approx. 30 minutes or longer*, recover the refrigerant.

* For cooling the pipes and recovering of oil

• Refrigerant recovery: Pump down method

* Remove the existing air conditioner from the piping and

carry out flashing (nitrogen pressure 0.5 Mpa) to remove the remains inside of the pipe.

Note] In case of twin, also be sure to flash the

branching pipe.

Was not largely discolored oil or

a large quantity of remains discharged?

(When the oil deteriorates, the color of the

oil changes to muddy and black color.)

YES

Existing pipe: NO * Use a new pipes.

Nitrogen gas pressure 0.5 Mpa

(If there is discharge of remains, it is judged that there is a large quantity of remains.)

Clean the pipes or use the new pipes.

If you are in trouble of pipe cleaning, please contact us.

 Connect the indoor/outdoor units to the existing pipe.

• Use a flare nut attached to the main unit for the indoor/outdoor units. (Do not use the flare nut of the existing pipe.)

• Re-machine the flare machining size to size for R410A.

 In case that the gas pipe Ø19 mm is used for the

outdoor unit of SM803 (3 HP) or higher: (Gas pipe size of our R410A model 3 to 5 HP is Ø15.9 mm)

→ Turn the existing pipe switch on the cycle control

P.C board of the outdoor unit to ON side. At shipment from factory OFF → ON for existing pipe (Refer to the table below.) (Be sure to set the contents in the table below in order to restrict the refrigerating cycle pressure of the equipment in the pipe standard.)

Existing pipe SW

Switch

3 HP

4, 5 HP

Bit 3 of SW801 → ON

Bit 3 of SW802 → ON

* (Airtight test), Vacuum dry, Refrigerant charge,

Gas leak check

Piping necessary to change the flare nut/ machining size due to pipe compression.

1) Flare nut width: H

Copper pipe outer dia.

For R410A

For R22

Ø6.4

Same as above

Ø9.5

Ø12.7

2) Flare machining size: A

Copper pipe outer dia.

For R410A

For R22

Becomes large a little for R410A

Do not apply the refrigerator oil to the flare surface.

Ø6.4

9.1

Ø9.5

13.2

Ø12.7

16.6

Ø15.9

2724

Ø15.9

19.7

(mm)

Ø19.0

Same

as above

(mm)

Ø19.0

24.0

23.319.416.213.09.0

Trial run

– 41 –

Page 42

6-6-6. Handling of Existing Pipe

1234

P.C. board

Refrigerant recovery switch SW801

Optional connector CN610

Special operation select switch SW804

Existing pipe switch SW802

When using the existing pipe, carefully check it for the following:

• Wall thickness (within the specified range)

• Scratches and dents

• Water, oil, dirt, or dust in the pipe

• Flare looseness and leakage from welds

• Deterioration of copper pipe and heat insulator

Cautions for using existing pipe

• Do not reuse the flare to prevent gas leak. Replace it with the supplied flare nut and then

process it to a flare.

• Blow nitrogen gas or use an appropriate means to keep the inside of the pipe clean.

If discolored oil or much residue is discharged, wash the pipe.

• Check welds, if any, on the pipe for gas leak. When the pipe corresponds to any of the follow-

ing, do not use it. Install a new pipe instead.

• The pipe has been open (disconnected from indoor unit or outdoor unit) for a long period.

• The pipe has been connected to an outdoor unit that does not use refrigerant R22, R410A or R407C.

• The existing pipe must have a wall thickness equal to or larger than the following thickness.

6-6-7. Recovery Method of Refrigerant for

RAV-SP1104AT-E, RAV-SP1404AT-E

• Use the refrigerant recovery switch SW801 on the P.C. board of the outdoor unit to recover refrigerant when the indoor unit or outdoor unit is moved.

Operation method

1. Turn on the power of the air conditioner.

2. Select the FAN mode for indoor unit operation

with the remote controller.

3. Set SW804 on the P.C. board of the outdoor unit

to all OFF, and then push SW801 for one second or more.

The air conditioner enters the forced cooling mode for up to 10 minutes.

Operation or handling the valve to recover refrigerant during this time period.

4. Upon completion of refrigerant recovery, close

the valve and push SW801 for at least one second to stop operation.

5. Turn off the power.

Reference outside diameter

(mm)

Ø9.5

Ø15.9

Ø19.1

Wall thickness

(mm)

0.8

1.0

• Never use any pipe with a wall thickness less than these thicknesses due to insufficient pressure capacity.

• To use an existing Ø19.1 mm pipe, set bit 3 of SW802 (switch for existing pipe) on the P.C. board of the outdoor unit to ON. In this case, the heating performance may be reduced depending on the outside air temperature and room temperature.

SW802

When shipped from factory When using existing pipe

1234

DANGER

Take care for an electric shock because the P.C.board is electrified.

– 42 –

Page 43

7. INDOOR CONTROL CIRCUIT

7-1. Indoor Controller Block Diagram

7-1-1. Connection of Main (Sub) Remote Controller

Main (sub) master remote controller (Max. 2 units) Weekly timer

Indoor unit #1 (Master)

× 4

Louver

motor

Drain

pump

Indoor

fan motor

DC280V

Display LCD Function setup

Display LED

Remote controller

communication circuit

Indoor control P.C. board (MCC-1570)

Power circuit

DC20V

DC5V

DC12V

Humidifier output

Fan motor

control circuit

Remote controller

communication circuit

MCU

Driver

Outside output

Run

Warning

Defrost

Thermo. ON

COOL

HEAT

FAN

Key switch

DC5V

Power circuit

MCU

synchronous

signal input circuit

CN2

CN1

∗3

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

Auto grille

panel

Serial send/

receive circuit

Display LCD LCD driver

MCU

DC5V

Secondary

battery

(Follower)

A B

Same as left

∗2

Power

circuit

Function setup

Key switch

(Follower)

A B

Same as left

321

∗2

321

* Case of TCC-LINK adapter

TCC-LINK

Central controller

(Option)

Case of TCC-LINK adapter

(Option)

TCC-LINK

adapter P.C. board

(MCC-1440)

TCC-LINK

communication circuit

– 43 –

321

Outdoor unit

Up to 8 units are connectable. ∗1 ∗1 However Max.7 units are connectable in

case of mounting network adapter when two main (sub) remote controllers are connected.

∗2 The network adapter is mounted to only 1 unit.

TCC-LINK adapter is mounted to the master unit.

∗3 Connection of the weekly timer to the sub

remote controller is unavailable.

Outdoor unit

Page 44

7-1-2. Connection of Wireless Remote Controller Kit

Indoor unit #1 (Master)

Wireless remote controller kit

Receiver P.C. board (MCC-1504)

Display LED

Receive circuit Function setup SW

× 4

Louver

motor

Drain

pump

Indoor

fan motor

DC280V

Buzzer

DC5V

Power circuit

Indoor control P.C. board (MCC-1570)

DC20V

DC5V

DC12V

Humidifier output

Fan motor

Power circuit

control circuit

Remote controller

communication circuit

Remote controller

communication circuit

MCU

Driver

Outside output

Run

Warning

Defrost

Thermo. ON

COOL

HEAT

FAN

Grille up/down SW

Temporary

operation SW

MCU

synchronous

signal input circuit

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

Auto grille

panel

Serial send/

receive circuit

(Follower)

A B

Same as left

∗2

(Follower)

A B

Same as left

321

∗2

321

* Case of TCC-LINK adapter

TCC-LINK

Central controller

(Option)

Case of TCC-LINK adapter

(Option)

TCC-LINK

adapter P.C. board

(MCC-1440)

TCC-LINK

communication circuit

– 44 –

321

Outdoor unit

Up to 8 units are connectable. ∗1 ∗1 However Max.7 units are connectable in

case of mounting network adapter when two main (sub) remote controllers are connected.

∗2 The network adapter is mounted to only 1 unit.

TCC-LINK adapter is mounted to the master unit.

Outdoor unit

Page 45

7-1-3. Connection of Both Main (Sub) Remote Controller and Wireless Remote Controller Kit

Indoor unit #1 (Master)

Receive

circuit

Buzzer

DC5V

Powe r

circuit

Display LED

MCU

Remote controller

communication circuit

Receiver P.C. board (MCC-1504)

Function setup SW

Grille up/down SW

Temporary

operation SW

Main (sub) master remote controller

communication circuit

(Max. 2 units)

Display

LCD

Display

LED

Remote controller

ABAB

MCU

Function

setup

Key

switch

DC5V

Powe r

circuit

CN2

CN1

∗3

Display

LCD

DC5V

Powe r circuit

Weekly timerWireless remote controller kit

LCD

driver

Function

MCU

setup

Key

switch

Secondary

battery

× 4

Louver

motor

Drain

pump

Indoor

fan motor

DC280V

Indoor control P.C. board (MCC-1570)

Power circuit

DC20V

DC5V

DC12V

Humidifier output

control circuit

Remote controller

communication circuit

MCU

Fan motor

Driver

Outside output

Run

Warning

Defrost

Thermo. ON

COOL

HEAT

FAN

MCU

synchronous

signal input circuit

321

EEPROM

TA sensor

TC sensor

TCJ sensor

Float input

Auto grille

panel

Serial send/

receive circuit

(Follower)

A B

Same as left

∗2

Outdoor unit

(Follower)

A B

Same as left

321

Outdoor unit

∗2

321

* Case of TCC-LINK adapter

TCC-LINK

Central controller

(Option)

Case of TCC-LINK adapter

(Option)

TCC-LINK

adapter P.C. board

(MCC-1440)

TCC-LINK

communication circuit

– 45 –

321

Outdoor unit

Up to 8 units are connectable. ∗1 ∗1 However Max.7 units are connectable in case of

mounting network adapter.

∗2 The network adapter is mounted to only 1 unit.

TCC-LINK adapter is mounted to the master unit.

∗3 Connection of the weekly timer to the sub remote

controller is unavailable.

∗4 In the left system, set the wireless remote

controller side as the follower remote controller when using the main (sub) wired remote controller as the master remote controller.

Page 46

7-2. Control Specifications

No.

When power supply is reset

Operation

mode selection

Item

Outline of specifications

1) Distinction of outdoor unit When the power supply is reset, the outdoors are distin-

guished and the control is selected according to the distinguished result.

2) Setting of indoor fan speed and existence of air direction adjustment

Based on EEPROM data, select setting of the indoor fan speed and the existence of air direction adjustment.

1) Based on the operation mode selecting command from the remote controller, the operation mode is selected.

Remote controller

command

STOP

FAN

COOL

DRY

HEAT

AUTO

Air conditioner stops.

Fan operation

Cooling operation

Dry operation

Heating operation

• COOL/HEAT operation mode is automatically selected by Ta, Ts and To for operation.

• The operation is performed as shown in the following figure according to Ta value at the first time only. (In the range of Ts +

Control outline

α –1 < Ta < Ts + α + 1, Cooling

thermo. OFF (Fan)/Setup air volume operation continues.)

Remarks

Air speed (rpm)/ Air direction adjustment

Ta: Room temp. Ts: Setup temp. To: Outside temp.

Room temp.

control

Cooling

+1.0

Ts +

(˚C)

•

α is corrected according to the outside temperature.

Outside temp.

No To

To ≥ 24°C

24 > To ≥ 18°C

To < 18°C

To error

-1.0

operation

Cooling thermo. OFF (Fan)

• Setup air volume

Heating operation

Correction value (

–1K

+1K

αα

α)

αα

1) Adjustment range: Remote controller setup temperature (°C)

AUTO

18 to 29

17 to 27

Wired type

Wireless type

COOL/DRY

18 to 29

18 to 30

HEAT

18 to 29

16 to 30

k = deg

– 46 –

Page 47

No.

Item

Room temp. control (Continued)

Outline of specifications

2) Using the Item code 06, the setup temperature in heating operation can be corrected.

Setup data

Setup temp. correction

0246

+0°C +2°C +4°C +6°C

Setting at shipment

Setup data 2

Remarks

Shift of suction temperature in heating operation

Automatic

capacity control

(GA control)

1) Based on the difference between Ta and Ts, the operation frequency is instructed to the outdoor unit.

2) Cooling operation Every 90 seconds, the room temperature difference

between temperature detected by Ta and Ts and the varied room temperature value are calculated to obtain the correction value of the frequency command and then the present frequency command is corrected.

Ta (n) – Ts (n) : Room temp. difference n : Counts of detection Ta (n-1) – Ts (n) : Varied room temp. value n – 1 :

Counts of detection of 90 seconds before

3) Heating operation Every 1 minute (60 sec.), the room temperature differ-

ence between temperature detected by Ta and Ts and the varied room temperature value are calculated to obtain the correction value of the frequency command and then the present frequency command is corrected.

Ts (n) – Ta (n) : Room temp. difference n : Counts of detection Ta (n) – Ta (n – 1) : Varied room temp. value n – 1 : Counts of detection of 1 minute before

4) Dry operation The frequency correction control is same as those of the

cooling operation. However the maximum frequency is limited to approxi-

mately “S6”.

Note) When LOW is set up, the maximum frequency is

limited to approximately “SB”.

Automatic

cooling/heating control

1) The judgment of selecting COOL/HEAT is carried out as shown below. When +1.5 exceeds against Tsh 10 minutes and after thermo.-OFF, heating operation (Thermo. OFF) exchanges to cooling operation. Description in the parentheses shows an example of cooling ON/OFF.

Cooling

(˚C)

+1.5

Tsc

Tsh

-1.5

(Cooling OFF)

(Cooling ON)

Heating

When –1.5 lowers against Tsc 10 minutes and after thermo. OFF, cooling operation (Thermo. OFF) exchanges to heating operation.

2) For the automatic capacity control after judgment of cooling/heating, see Item 4.

3) For temperature correction of room temp. control in automatic heating, see Item 3.

– 47 –

Tsc: Setup temp. in

cooling operation

Tsh: Setup temp. in

heating operation + temp. correction of room temp. control

Page 48

No.

Air speed selection

Item

Outline of specifications

1) Operation with (HH), (H), (L) or [AUTO] mode is carried

out by the command from the remote controller.

(2) When the air speed mode [AUTO] is selected, the air

speed varies by the difference between Ta and Ts.

Remarks

HH > H+ > H > L+ > L > UL

<COOL>

Ta (˚C)

+3.0

+2.5

+2.0

+1.5

+1.0

+0.5

Tsc

–0.5

HH (HH)

H+ (HH)

H (HH)

L+ (H+)

L (H)

L (H) L (L+)

A B C

F G

• Controlling operation in case when thermo of remote

controller works is same as a case when thermo of the body works.

• If the air speed has been changed once, it is not changed

for 3 minutes. However when the air volume is exchanged, the air speed changes.

• When cooling operation has started, select a downward

slope for the air speed, that is, the high position.

• If the temperature is just on the difference boundary, the

air speed does not change.

• Mode in the parentheses indicates one in automatic

cooling operation.

<HEAT>

Ta (˚C)

(–0.5) –1.0

(0) Tsh

(+0.5) +1.0

(+1.0) +2.0

(+1.5) +3.0

(+2.0) +4.0

L (L+)

L+ (H)

H (H+)

H+ (HH)

HH (HH)

Value in the parentheses indicates one when thermostat of the remote controller works.

Value without parentheses indicates one when thermostat of the body works.

• If the air speed has been changed once, it is not changed

for 1 minute. However when the air speed I exchanged, the air speed changes.

• When heating operation has started, select an upward

slope for the air speed, that is, the high position.

• If the temperature is just on the difference boundary, the

air speed does not change.

• Mode in the parentheses indicates one in automatic

heating operation.

• In Tc ≥ 60°C, the air speed increases by 1 step.

Tc: Indoor heat

exchanger sensor temperature

– 48 –

Page 49

No.

Item

Air speed selection (Continued)

Item code

[5d]

SW501 (1)/(2)

Ta p

Outline of specifications

Standard Type 1 Type 3 Type 6

0136

OFF/OFF ON/OFF OFF/ON ON/ON

HEAT COOL HEAT COOL HEAT COOL HEAT COOL

HH HH HH HH

HH HH

H+ H+, H H+, H

H+

HH H

HH H L+ L+

H+ H+ L L

HL+

HL+L

L+ L

UL UL UL UL

H+, H H+, H

L+, L L+, L

Remarks

Selection of high ceiling type

Item code: [5d] or selection of high ceiling on P.C. board SW501

Ta p

SM56 SM80 SM110 SM140

Revolution speed (rpm)

610 630 700 700

550 590 670 670

500 530 660 660

450 470 640 650

400 450 620 640

390 440 610 630

370 410 550 560

350 380 490 490

340 370 480 480

330 350 450 460

320 330 400 430

310 320 400 420

250 250 300 300

3) In heating operation, the mode changes to [UL] if thermostat is turned off.

4) If Ta ≥ 25°C when heating operation has started and when defrost operation has been cleared, the air conditioner operates with (H) mode or higher mode for 1 minute after Tc entered in E zone of cool air discharge preventive control (Item 7).

5) In automatic cooling/heating operation, the revolution frequency of (HH) is set larger than that in the standard cooling/heating operation.

However the revolution

(˚C)

F4F5

frequency is restricted in the automatic heating operation as shown in the following figure.

However only when the high ceiling selection is set to [Standard]

6) Dry clean operation When performing dry operation after stopping the cooling

operation, the mode becomes [UL] (210 rpm).

– 49 –

[DRY] is displayed.

Page 50

No.

Cool air discharge preventive control

Item

Outline of specifications

1) In heating operation, the indoor fan is controlled based on the detected temperature of Tc sensor or Tcj sensor. As shown below, the upper limit of the revolution frequency is restricted.

However B zone is assumed as C zone for 6 minutes and after when the compressor activated.

In defrost operation, the control value of Tc is shifted by 6°C.

(˚C)

Tcj

20 16

OFF

E zone

D zone

C zone B zone

A zone

Remarks

In D and E zones, the priority is given to air volume selection setup of remote controller.

In A zone while thermo is ON, [PRE-HEAT (Heating ready)] is displayed.

Freeze preventive control

(Low temperature release)

1) The cooling operation (including Dry operation) is performed as follows based on the detected temperature of Tc sensor or Tcj sensor.

When [J] zone is detected for 6 minutes (Following figure), the commanded frequency is decreased from the real operation frequency. After then the commanded frequency changes every 30 seconds while operation is performed in [J] zone.

In [K] zone, time counting is interrupted and the operation is held.

When [ I ] zone is detected, the timer is cleared and the operation returns to the normal operation.

If the commanded frequency becomes S0 because the operation continues in [J] zone, the return temperature A is raised from 5°C to 12°C until [ I ] zone is detected and the indoor fan operates with [L] mode.

(˚C)

Tcj: Indoor heat exchanger

sensor temperature

In heating operation, the freeze-preventive control works if 4-way valve is not exchanged and the following conditions are satisfied. (However the temperature for J zone dashing control is changed from 2°C to –5°C.)

• When

or  is established 5 minutes after



activation.

Tcn ≤ Tc (n – 1) – 5



Tcn < Tc (n – 1) – 1 and Tcn ≤ Ta < 5°C



– 50 –

Tcn: Tc temperature when 5

minutes elapsed after activation

Tc (n – 1): Tc temperature at start

time

Page 51

No.

High-temp. release control

Item

Outline of specifications

1) The heating operation is performed as follows based on the detected temperature of Tc sensor or Tcj sensor.

• When [M] zone is detected, the commanded frequency is

decreased from the real operation frequency. After then the commanded frequency changes every 30 seconds while operation is performed in [M] zone.

• In [N] zone, the commanded frequency is held.

• When [L] zone is detected, the commanded frequency is

returned to the original value by approx. 6Hz every 60 seconds.

Remarks

However this control is ignored in case of the follower unit of the twin.

Drain pump control

Setup at shipment

Control temp. (°C)

56 (54) 52 (52)

Tcj

(˚C)Tc

NOTE:

When the operation has started or when Tc or Tcj < 30°C at start of the operation or after operation start, temperature is controlled between values in parentheses of A and B.

1) In cooling operation (including Dry operation), the drain pump is usually operated.

2) If the float switch works while drain pump drives, the compressor stops, the drain pump continues the operation, and a check code is output.

3) If the float switch works while drain pump stops, the compressor stops and the drain pump operates. If the float switch keeps operating for approx. 4 minutes, a check code is output.

4) If the humidifier “Provided” is judged, compressor [ON], fan [ON] and TC sensor value > 33°C, the drain pump operates.

Same status as that when “thermostat-OFF” (status that the air conditioner enters in the room temp. monitor mode when the temperature reached the setup temperature on the remote controller)

Check code [P10]

After-heat elimination

When heating operation stops, in some cases, the indoor fan operates with (L) for approx. 30 seconds.

– 51 –

[Dry operation ] is displayed.

Page 52

No.

Item

Louver control

Outline of specifications

1) Louver position setup

• When the louver position is changed, the position moves necessarily to downward discharge position once to return to the set position.

• The louver position can be set up in the following operation range.

In cooling/dry operation In heating/fan operation

• In group twin/triple operation, the louver positions can be set up collectively or individually.

2) Swing setup

• [SWING] is displayed and the following display is repeated.

In all operations

(Repeats)

• In group twin operation, the louver positions can be set up collectively or individually.

3) When the unit stopped or the warning was output, the louver is automatically set to full closed position.

4) When PRE-HEAT

(Heating ready) is displayed (Heating operation started or defrost operation is performed), heating thermo is off or selfcleaning is performed, the louver is automatically set to horizontal discharge position.

∗ The louver which air direction is individually set or the locked louver

closes fully when the unit stops and the louver is automatically set to horizontal discharge position when PRE-HEAT

(Heating ready) is

displayed, heating thermo is off or self-cleaning is performed.

Remarks

The louver position at horizontal discharge position at under SM80 differs from that at over SM110.

The swinging louver moves usually up to the ceiling side from the louver position of the set time.

<<Individual air direction setup>>

• Pushing

UNIT LOUVER

Louver select button enables every discharge port to

set up the air direction.

• In case of no input (key operation) for approx. 5 seconds during setting of individual air direction (during displaying of louver No. on the remote controller screen), the remote controller screen returns to the normal display screen.

• For the air direction illustration during normal operation, the air direction of the least No. among the louvers which are block-set is displayed.

• While individual air direction is being set, the remote controller operation (Illustration of air direction) and operation of the real machine are linked.

• When selecting a case,

UNIT LOUVER

Louver select button is not pushed or louver No. is not displayed, the air directions of all the louvers are collectively set up.

[02]

[01][03]

E-boxE-box

Setup from the remote controller without

UNIT LOUVER

button

is unavailable.

For the setup operation, refer to “How to set up louver individually” of Item “Setup at local site/ Others”.

Using same as the present 4-way Air Discharge Cassette Type is possible

Refrigerant pipe Drain pipe

[04]

– 52 –

Page 53

No.

Louver control (Continued)

Item

Outline of specifications

<<Selection of Swing mode>>

• For the Swing mode, the following three types of modes are selectable and settable by keeping Swing/Direction

SWING/FIX

button pushed for 4 seconds or more on the remote controller.

Standard (4 pieces: same phase) swing



→ Data: [0001 (At shipment)] When Swing operation is selected, four louvers align at the

horizontal discharge position and then start the Swing operation at the same time.

Dual swing → Data: [0002]



When operation is selected, the louvers of louver No. [01] and [03] move to the horizontal discharge position, the louvers of louver No. [02] and [04] move to the downward discharge position and then start the Swing operation at the same time.

Cycle swing → Data: [0003]



When operation is selected, the louver No. [01] moves to the horizontal discharge position, [03] to the downward discharge position, [02] and [04] to the middle position and then start the Swing operation at the same time.

• Three types of the swing modes can be also selected and set by the setup data of Item code (DN) [F0].

• In case of selecting the Swing mode, “Dual swing” or “Cycle swing”, the following numerals is displayed at the center of the remote controller screen for approx. 3 seconds when

SWING/FIX

button was pushed to select [SWING]. (No display for the standard swing)

Remarks

On the remote controller before the wired remote controller (RBC-AMT31E), the mode cannot be moved to the select mode even if pushing

SWING/FIX

button for a long time.

Carry out setting operation during stop of the unit; otherwise the unit stops operation.

The standard swing performs the same swing operation as the present operation (2 series).

For the setting operation, refer to [How to set up type of the swings] in Item “Setup at local site/Others”.

On the remote controller before the wired remote controller (RBC-AMT31E), flashing showing the Swing mode is not indicated.

Alternate lighting

Dual swing

(0.5 sec.)

Cycle swing

Alternate lighting

(0.5 sec.)

<<Louver lock (Louver fix)>>

• For the air direction setup for each discharge port, the louver position can be locked during the normal operation.

• An arbitrary air direction of an arbitrary louver can be registered and set by keeping

UNIT LOUVER

button pushed for

4 seconds or more on the remote controller.

• The louver lock can be set by registering the setup data to Item code (DN) [F1] to [F4] according to the following table.

Item code

Objective louver No.

Setup data

0000: Release (At shipment)

0001: Horizontal discharge position

0005: Downward discharge position

On the remote controller before the wired remote controller (RBC-AMT31E),

UNIT LOUVER

button is not

provided. Carry out setting

operation during stop of the unit; otherwise the unit stops opera-

– 53 –

Page 54

No.

Louver control (Continued)

Item

Outline of specifications

• If there is the locked louver in the unit, [ ] goes on the remote controller screen.

• While the following controls are performed, the louvers operate even if executing the louver lock.

Control which ignores lock

     

Operation stop

When heating operation started

Heating thermo. OFF

During defrost operation

Initialize operation

Self-clean operation

Objective louver No.

Full-close position

Horizontal discharge position

Full-close position

Horizontal discharge position

• The real louver corresponding to the louver No. displayed on the remote controller screen during setting of louver lock operates swinging.

<<Selection of horizontal discharge position>>

• For the horizontal discharge position, selection of the cold draftless (Control for cold air draft) position and smudging-less (Control for smudge of ceiling) position is available.

• Although “Smudging-less” position has been set at shipment from the factory, “Cold draft-less” position can be selected by changing [0000 (At shipment)] to [0002] on the Item code (DN) [45].

• To realize “360° discharge”, it is necessary to set “cold draft-less” position.

• When using the optional part “Height adjustment spacer” or installing the unit at position where there is no ceiling, it is recommended to set DN Item code [45] to [0002] to use it at “cold draft-less” position.

Remarks

For the setting operation, refer to [How to set louver lock] of Installation Manual.

It is position check operation and it does not link with the real louver and air direction setup (Illustration on the remote controller screen).

If selecting the cold draft-less position, effect of the smudging-less weakens.

HA control

Frequency

fixed operation (Test run)

1) This control is connected to TV control or remote start/stop I/F,

etc, and start/stop are available by HA signal input from the remote position.

2) This control outputs start/stop status to HA output terminal.

3) I/O specifications conform to JEMA regulations.

4) This control outputs [Operation OFF (STOP) signal] to HA output

terminal while self-cleaning works. However selection of [Operation ON (Operating) signal] is possible by changing [0000 (At shipment)] of Item code (DN) [CC] to [0001]. In this case, if HA is input during self-clean operation during operation of the air conditioner, the self-clean operation is not performed. (Unit stops.)

1) When pushing [CHK] button for 4 seconds or more, [TEST] is

displayed on the display screen and the mode enters in Test run mode.

2) Push [ON/OFF] button.

3) Using [MODE] button, set the mode to [COOL] or [HEAT].

• Do not use other mode than [COOL]/[HEAT] mode.

• During test run operation, the temperature cannot be adjusted.

• An error is detected as usual.

• A frequency fixed operation is performed.

4) After the test run, push [ON/OFF] button to stop the operation.

(Display in the display part is same as the procedure in Item 1.)

5) Push [CHK] button to clear the test run mode.

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

In the group operation, use this control by connecting to either master or follower indoor unit.

Command frequency is approximately [S7]

– 54 –

Page 55

No.

Filter sign display (Except wireless type)

Item

Outline of specifications

1) The operation time of the indoor fan is calculated, the filter reset signal is sent to the remote controller when the specified time (2500H) has passed, and it is displayed on LCD.

2) When the filter reset signal has been received from the remote controller, time of the calculation timer is cleared.

In this case, the measurement time is reset if the specified time has passed, and display on LCD disappears.

Remarks

[FILTER ] goes on.

1617Central control

mode selection

Energy-saving control

1) Setting at the centerl controller side enables to select the contents which can be operated on the remote controller at indoor unit side.

2) Setup contents

• 64 line central controller (TCB-SC642TLE2)

[Individual]: Operated on the remote controller

(Priority to second pushing)

[Central 1]: ON/OFF operation cannot be operated on

the remote controller.

[Central 2]: ON/OFF, mode selection, temp. setup

operations cannot be operated on the remote controller.

[Central 3]: Mode selection and temp. setup operations

cannot be operated on the remote controller.

[Central 4]: Mode selection cannot be operated on the

remote controller.

* In case of the wireless type, the display lamp does not

change but the contents are same. If operating an item which is prohibited by the central control mode from the remote controller, it is notified with the receive sound, Pi, Pi, Pi, Pi, Pi (5 times).

1) Selecting [AUTO] mode enables an energy-saving to be operated.

2) The setup temperature is shifted (corrected) in the range not to lose the comfort ability according to input values of various sensors.

3) Data (Input value room temp. Ta, Outside temp. To, Air volume, Indoor heat exchanger sensor temp. Tc) for 20 minutes are taken the average to calculate correction value of the setup temperature.

4) The setup temperature is shifted every 20 minutes, and the shifted range is as follows.

In cooling time: +1.5 to – 1.0K In heating time: –1.5 to +1.0K

Display at remote controller side (No display)

[Central

] goes on

18 Max. frequency

cut control

1) This control is operated by selecting [AUTO] operation mode.

2) COOL operation mode: It is controlled according to the following figure if To < 28°C.

Ta(˚C)

Tsc

Normal control

Max. frequency is restricted to approximately the rated cooling frequency

3) HEAT operation mode: It is controlled according to the following figure if To > 15°C.

Max. frequency is

Ta(˚C)

Tsh

–3

–4

Normal control

restricted to approximately the rated heating frequency

– 55 –

Page 56

No.

Item

DC motor

Outline of specifications

1) When the fan operation has started, positioning of the stator and the rotor are performed. (Moves slightly with tap sound)

2) The motor operates according to the command from the indoor controller.

Notes)

• When the fan rotates while the air conditioner stops due to entering of outside air, etc, the air conditioner may operate while the fan motor stops.

• When a fan lock is found, the air conditioner stops, and an error is displayed.

Remarks

Check code [P12]

2021Self-clean operation

(Dry operation)

1) When cooling operation mode (AUTO COOL, COOL, DRY) stopped, the following three dry operations are performed.

Compressor

ON period

0 to 10 min.

10 to 60 min.

60 min. to

2) During operation of self-clean, lights on the wired remote controller screen. However the operation lamp (Green LED) goes off.

3) To stop the self-clean operation, push twice the [ON/OFF] button on the remote controller continuously. (Stop the operation as compressor ON time in the table above: 10 minutes or below.)

4) When the follower unit executes self-clean operation in the group connection, the segment of wired remote controller screen via master unit.

∗ If self-clean operation is not used, set invalidity (does

not use) of the self-clean operation by changing [0001

Self-clean

operation period

None

1 hour

2 hours

FA N

Fan (UL)

Drain pump

STOP

is displayed on the

Louver

Horizontal discharge position

On the remote controller before the wired remote controller (RBC-AMT31E), Dry operation display is not output. And it is not also on the wireless remote controller.

It is recognized as [STOP] from the remote monitor side.

(At shipment) of Item code (DN) [D3] to [0000].

∗ To erase the

display during operation of self-clean, change Item code [D4] from [0000: Display (At shipment)] to [0001: Non-display].

Save operation

1) Turn on

2) During operation of save operation,

SAVE

button on the remote controller.

SAVE

lights on the

wired remote controller.

3) During save operation, the current release control is performed with the restriction ratio set in EEPROM on the outdoor unit.

4) The restriction ratio can be set by keeping

SAVE

button

pushed for 4 seconds or more on the remote controller.

5) When validating the save operation, the next operation starts with save operation valid because contents are held even when operation stops, operation mode changes or power supply is reset.

6) The restriction ratio can be set by changing the setup data of Item code (DN) [C2] in the range of 50 to 100% (every 1%, Setting at shipment: 75%).

– 56 –

Display is not output on the remote controller before the wired remote controller (RBC-AMT31E).

Carry out setting operation during stop of the unit; otherwise the unit stops operation.

For the setup operation, refer to “How to set up contents of save operation” of Installation Manual.

Page 57

No.

8°C heating/ Frost protective operation

Item

Outline of specifications

1) This functional is intended for the cold latitudes and performs objective heating operation (8°C heating operation).

2) This function is valid only for combination with the outdoor units (Super Digital Inverter (SDI) 4-series outdoor units).

3) Using the indoor DN code [D1] (1 bit), Valid/Invalid of this function is set up at the customer’s side.

∗ The setup by DN code is Invalid [0]/Valid [1] and Invalid [0]

has been set at the shipment.

4) This operation is the heating operation which sets +8°C as the setup temperature of the target.

5) This function starts operation by pushing temperature button

button for 4 seconds or more after temperature

reached the minimum set temperature.

6) To stop/release this operation, select and execute one from the following operations.

Push button: Heating operation (18°C setting)



continues. Push [START/STOP] button: Air conditioner stops.



(Heating 18°C operation at the next start) Push



operation continues.

7) As the setup temperature is +8°C and the human heating is not targeted, the cold air discharge preventive control (Item 7) is made invalid to suppress the intermittent operation.

8) The settings of the air direction and air volume are changeable during this operation.

9) The indoor fan stops to protect the compressor for 2 minutes after start of heating operation (Thermo-ON) by this function.

during heating operation; besides by pushing

MODE

: Other operation mode is selected and the

Remarks

In a group connection, if there is even one combination with other unit, “This function is not provided.” is displayed.

The setup temperature jumps from [18] to [8].

– 57 –

Page 58

– 58 –

Function

Humidifier output (∗)

Ventilation output

Option output

Outside error input

AUTO up/down grille (∗)

FILTER Option error / Humidifier setting (∗)

CHK Operation check

DISP Exhibition mode

EXCT Demand

Connector No.

CN66

CN32

CN61

CN60

CN80

CN20

CN70

CN71

CN72

CN73

Pin No.

Specifications

DC12V

Output (Open collector)

DC12V

Output (Open collector)

ON/OFF input

Remote controller prohibited input

Operation output (Open collector)

DC12V

Warning output (Open collector)

DC12V

Defrost output (Open collector)

Thermostat ON output (Open collector)

Cooling output (Open collector)

Heating output (Open collector)

Fan output (Open collector)

DC12V

Outside error input

DC12V

Panel operation input

Panel up output (Open collector)

Panel down output (Open collector)

Demand input

Remarks

7-3. Optional Connector Specifications of Indoor P.C. Board

Humidifier output is ON when heating operation is performed, when thermostat is on, when the fan is on. ∗ The setting of Humidifier provided + Drain pump ON is performed by short-circuit of CN70 or from the

remote controller. (DN [40] = 0001)

Setting at shipment: Interlock of ON by indoor unit operation, with OFF by stop operation ∗ The single operation setting by FAN button on the remote controller is performed on the remote

controller (DN [31] = 0000 → 0001)

HA ON/OFF input (J01: YES/NO=Pulse (At shipment from factory) /Static input selection)

Permission/Prohibition of remote controller operation stop is performed by input.

Operation ON (Answer back of HA)

Warning output ON

ON when outdoor unit is defrosted

ON when real thermostat is on. (Compressor ON)

ON when operation mode is cooling system (COOL, DRY, Cooling/Heating automatic cooling)

ON when operation mode is heating system (HEAT, Cooling/Heating automatic heating)

ON when indoor fan is on. (When air cleaner is used) OFF while clean operation is performed.

Generate the warning code “L30” (continuously for 1 minute) and stop the operation forcibly.

The grille is controlled according to up/down operation from the remote controller. ∗ Setting of automatic up/down grille provided is performed on the remote controller.

(DN [30] = 0000 → 0001)

Selection of option error input (Protective operation display of device attached to outside) or Humidifier setting input (Vaporizing + Drain pump ON) Humidifier is set at shipment from factory. ∗ Setting of option error input is performed on the remote controller. (DN [2A] = 0002 → 0001)

This check is used to check indoor operation. (Performs operation of indoor fan “H”, Louver horizontal and Drain pump ON without communication with outdoor and remote controller)

Communication is available by indoor unit and remote controller only.

Indoor unit forced thermostat OFF operation

∗ This option is not provided to oversea models.

Page 59

7-4. Indoor Print Circuit Board

<MCC-1570>

Optional output

CN60 (White), DC12

Humidifier

High ceiling select switch

SW501

Micro computer operation LED

D501 (Red)

Louver

CN510 (White),

DC12V

CN66 (White), DC12V

Fan drive

CN32 (White), DC12V

TC sensor

CN101 (Black), DC5V

TA sensor

CN104 (Yellow), DC5V

TCJ sensor

CN102 (Red), DC5V

Drain pump

Filter

CN70 (White), DC5V

Float switch

CN504 (White), DC12V

CN34 (Red), DC12V

EXCT

CN73 (Red), DC5V

Automatic up/down grille

CN20 (Blue), DC12V

Outside error input

CN80 (Green), DC12V

HA (T10)

CN61 (Yellow), DC12V

Sub bus communication LED

D504 (Green)

DC fan return

CN334 (White)

Serial receive LED

D14 (Orange)

Serial send LED

D15 (Green)

Remote controller

CN41 (Blue), DC20V

DC fan output

CN333 (White)

CHK

CN71 (White), DC5V

Main bus communication LED

D503 (Yellow)

Remote controller power supply LED

D403 (Red)

DISP

CN72 (White), DC5V

TCC-LINK adapter

CN50 (White), DC12V, 5V

Optional power supply

CN309 (Yellow), AC230V

Indoor/Outdoor inter-unit cable

CN67 (Black), AC230V

– 59 –

Page 60

8. CIRCUIT CONFIGURATION AND CONTROL SPECIFICATIONS

8-1. Outdoor Controls

8-1-1. Print Circuit Board

<Viewed from parts of P.C board> RAV-SP1104AT-E, RAV-SP1404AT-E

RAV-SP1104ATZ-E, RAV-SP1404ATZ-E RAV-SP1104ATZG-E, RAV-SP1404ATZG-E

<MCC-1571>

Case thermostat connector CN609 (Blue)

Power supply circuit protective fuse F100 250V, 3.15A, Plastic case)

4-way valve connector CN701 (White)

Compressor ON output connector CN704 (Blue)

Heater output connector CN610 (Gray)

Outside input connector CN610 (Yellow)

Specific operation switch SW801 SW804

Display select switch SW800 SW803

Fan motor output (Lower side) CN300 (White)

Fan motor output (Upper side) CN400 (White)

Compressor output terminal CN202 CN201 CN200

Electrolytic condenser

Lead wire

Lead wire for grounding

for grounding P09 (Black)

P09 (Black)

Temp. sensor connector TL CN604 (White) TD CN603 (White) TO CN602 (Yellow) TE CN601 (White) TS CN600 (White)

Power-ON, error display LED D800 to 804 (Yellow) D805 (Green)

PMV connector CN710 (White)

Initial setting switch SW802

Indoor/Outdoor communication signal LED D503 (Green, Outdoor → Indoor) D502 (Orange, Indoor → Outdoor)

Connector

for reactor

Inter-unit cable connector CN04 (White)

4-way valve protective fuse F700 (250V, 3.15A, Plastic case)

Inter-unit cable protective fuse F03 (250V, 25A)

Connector

for reactor

Power supply protective fuse F01 (250V, 25A)

Lead wire for connection of power supply P01 (Red) P02 (White)

– 60 –

Page 61

8-2. Outline of Main Controls

1. PMV (Pulse Motor Valve) control

1) PMV is controlled between 30 and 500 pulsed during operation.

2) In cooling operation, PMV is usually controlled with the temperature difference between TS sensor and TC sensor aiming 1 to 4K as the target value.

3) In heating operation, PMV is usually controlled with the temperature difference between TS sensor and TE sensor aiming –1 to 4K as the target value.

4) When the cycle excessively heated in both cooling and heating operation, PMV is controlled by TD sensor. The target value is usually 91°C in cooling operation and 96°C in heating operation.

REQUIREMENT

A sensor trouble may cause a liquid back-flow or abnormal overheat resulting in excessive shortening of the compressor life. In a case of trouble on the compressor, be sure to check there is no error in the resistance value or the refrigerating cycle of each sensor after repair and then start the operation.

2. Discharge temperature release control

1) When the discharge temperature did not fall or the discharge temperature rapidly went up by PMV control, this control lowers the operation frequency. It subdivides the frequency control up to 0.6Hz to stabilize the cycle.

2) When the discharge temperature detected an abnormal stop zone, the compressor stops and then restarts after 2 minutes 30 seconds.

The error counting is cleared when the operation continued for 10 minutes. If the error is detected by 4 times without clearing, the error is determined and restarting is not performed.

∗ The cause is considered as excessively little amount of refrigerant, PMV error or clogging of the cycle.

3) For displayed contents of error, confirm on the check code list.

TD [˚C]

111

109

106

103

Abnormal stop

Frequency normal down

Frequency slow down

Frequency hold

Frequency slow up

(Up to command)

As command is

– 61 –

Page 62

3. Outdoor fan control

W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE

SP110 SP140

Down

3-1) Cooling fan control

The outdoor fan is controlled by TL sensor, TO sensor and the operation frequency.



The outdoor fan is controlled by every 1 tap of DC fan control (14 taps). Only for 60 seconds after the operation has started, the maximum fan tap corresponding to the



zone in the following table is fixed and then the fan is controlled by temperature of TL sensor.

200 240 240 260 320 380 480 500 530 610 640 660 720 780

— — 200 280 360 400 500 520 550 630 660 700 740 820

Revolution frequency allocation of fan taps [rpm]

TL [˚C]

58 55

38 35

revolution frequency of each zone

Revolution frequency hold

revolution frequency of each zone

WE tap

+1 tap / 20 sec

Up to the maximum

–1 tap / 20 sec

Up to the minimum

3-2) Heating fan control

The outdoor fan is controlled by TE sensor, TO sensor and the operation frequency.



(Control from minimum W1 to maximum (according to the following table)) For 3 minutes after the operation has started, the maximum fan tap corresponding to the zone in



the following table is fixed and then the fan is controlled by temperature of TE sensor.

TE [˚C]

–2 taps / 20 sec. (Up to W1)

(Up to the maximum tap of each zone)

Stop timer count

–2 taps / 20 sec. (Up to W1)

–1 tap / 20 sec. (Up to W1)

Revolution frequency hold

+1 tap / 20 sec

20 Hz 20Hz 45Hz

Temp. range

38°C ≤ TO

29°C ≤ TO < 38°C

15°C ≤ TO < 29°C

5°C ≤ TO < 15°C

0°C ≤ TO < 5°C

–4°C ≤ TO < 0°C

TO < –4°C

TO error

When TE ≥ 24°C continues for 5 minutes, the



or lower to 45Hz or higher

Min. Max. Min. Max. Min. Max.

W6 WC W8 WC WA WD

W5 WB W7 WC∗ W9 WC

W4 W8 W6 WA W8 WC

W3 W6 W5 W8 W7 WA

W2 W4 W4 W6 W5 W8

W2 W3 W3 W5 W4 W6

W1 W2 W1 W4 W2 W6

W1 WC W1 WC W2 WD

∗ : WB for SP110

compressor stops. It is the same status as the normal thermostatOFF without error display. The compressor restarts after approx. 2 minutes 30 seconds and this intermittent operation is not abnormal.

In case that the status in item  generates



frequently, stain on filter of the suction part of the indoor unit is considered. Clean the filter and then restart the operation.

Temp. range

10°C ≤ TO

5°C ≤ TO < 10°C

–3°C ≤ TO < 5°C

–10°C ≤ TO < –3°C

TO < –10°C

TO error

Object: SP140 Object: SP110

20 Hz 20Hz 45Hz

or lower to 45Hz or higher

Max. Max. Max.

W7 W8 W9

W9 WA WB

WB WB WC

WC WC WC

WD WD WD

Temp. range

10°C ≤ TO

5°C ≤ TO < 10°C

–3°C ≤ TO < 5°C

–10°C ≤ TO < –3°C

TO < –10°C

TO error

20 Hz 20Hz 45Hz

or lower to 45Hz or higher

Max. Max. Max.

W7 W8 W9

W9 WA WA

WA WA WB

WB WB WB

WD WD WD

– 62 –

Page 63

4. Coil heating control

1) This control function heats the compressor by turning on the stopped compressor instead of a case heater. It purposes to prevent stagnation of the refrigerant inside of the compressor.

2) As usual, turn on power of the compressor for the specified time before a test run after installation; otherwise a trouble of the compressor may be caused.

As same as a test run, it is recommended to turn on power of the compressor beforehand when starting operation after power of the compressor has been interrupted and left as it is for a long time.

3) A judgment for electricity is performed by TD and TO sensors. If TO sensor is defective, a backup control is automatically performed by TE sensor. For a case of defective TO sensor, judge it with outdoor LED display.

4) For every model, the power is turned off when TD is 30°C or more.

(Normal time) (In defective TO sensor)

No power

Intermittent power-ON 10 minutes: ON / 5 minutes: OFF Output [40W or equivalent]

Continuous power-ON Output [40W or equivalent]

• Power-ON condition TD < 30˚C

20˚C

18˚C

12˚C

10˚C

No power

Intermittent power-ON 10 minutes: ON / 5 minutes: OFF Output [40W or equivalent]

Continuous power-ON Output [40W or equivalent]

• Power-ON condition TD<30˚C

18˚C

15˚C

10˚C

8˚C

REQUIREMENT

While heating the coil, the power sound may be heard. However it is not a trouble.

5. Short intermittent operation preventive control

1) For 3 to 10 minutes after operation start, in some cases, the compressor does not stop to protect the compressor even if receiving the thermostat-OFF signal from indoor. However it is not abnormal status. (The operation continuance differs according to the operation status.)

2) When the operation stops by the remote controller, the operation does not continue.

6. Current release control

No. of revolutions of the compressor is controlled by AC current value detected by T620 on the outdoor P.C. board so that the input current of the inverter does not exceed the specified value.

Current [A]

I1–1.0

Frequency down

Hold Hold

Normal operation

Objective model

11 value [A]

– 63 –

SP110 / SP140

COOL HEAT

20.0 20.0

Page 64

7. Current release value shift control

Current release control value (11)

1) This control purposes to prevent troubles of the electronic parts such as the compressor driving elements and the compressor during cooling operation.

2) The current release control value (I1) is selected from the following table according to TO sensor value.

Temperature range

44°C ≤ To

39°C ≤ To < 44°C

To < 39°C

TO error

SP110, SP140

15.0

17.7

20.0

15.0

8. Over-current protective control

1) When the over-current protective circuit detected an abnormal current, stop the compressor.

2) The compressor restarts after 2 minutes 30 seconds setting [1] as an error count.

3) When the error count [8] was found, determine an error and restart operation is not performed.

4) For the error display contents, confirm on the check code list.

9. High-pressure release control

1) The operation frequency is controlled to restrain abnormal rising of high pressure by TL sensor in cooling operation and TC sensor in heating operation.

2) When TL sensor in cooling operation or TC sensor in heating operation detects abnormal temperature of the stop zone, stop the compressor and the error count becomes +1.

3) When the compressor stopped with 2), the operation restarts from the point of the normal operation zone (e point or lower) where it returned after 2 minutes 30 seconds.

4) The error count when the compressor stopped with 2) is cleared after the operation continued for 10 minutes. If the error count becomes [10] without clearing, the error is determined and reactivation is not performed.

5) For the error display contents, confirm on the check code list.

[A]

HEAT TC / COOL TL

[˚C]

Abnormal stop

Frequency normal down

Frequency slow down

Frequency hold

Abnormal stop

Frequency slow up (Up to command)

As command is

– 64 –

HEAT COOL

TC TL

62°C 63°C

57°C 62°C

55°C 60°C

53°C 58°C

49°C 54°C

Page 65

10. Defrost control

1) In heating operation, defrost operation is performed when TE sensor satisfies any condition in A zone to D zone.

2) During defrosting operation, it finishes if TE sensor continued 12°C or higher for 3 seconds or continued 7°C ≤ TE < 12°C for 1 minute.

The defrost operation also finishes when it continued for 10 minutes even if TE sensor temperature was 7°C or lower.

3) After defrost operation was reset, the compressor stopped for approx. 40 seconds and then the heating operation starts.

Start of heating operation

TE [˚C]

0 10 15 39 45 55 d

[min.]

–2 –5

A zone

–10

B zone

D zone

–23

C zone

∗

∗ The minimum TE value and To value between 10 and 15 minutes after heating operation has started

are stored in memory as TE0 and To0, respectively.

In normal To In abnormal To

A zone

B zone

C zone

D zone

When status (TE0 – TE) – (To0 – To) ≥ 3°C When status (TE0 – TE) ≥ 3°C

continued for 20 seconds continued for 20 seconds

When status (TE0 – TE) – (To0 – To) ≥ 2°C When status (TE0 – TE) ≥ 2°C

continued for 20 seconds continued for 20 seconds

When status (TE ≤ –23°C) continued for 20 seconds

When compressor operation status of TE < –2°C is calculated by d portion

C zone

4) The time of above d can be changed by exchanging jumper [J805] and [J806] of the outdoor control P.C. board. (Setting at shipment: 150 minutes)

– 65 –

J805 J806

¡¡

Setting at shipment

××

: Short circuit, × : Open

150 minutes

90 minutes

60 minutes

30 minutes

Page 66

9. TROUBLESHOOTING

9-1. Summary of Troubleshooting

1. Before troubleshooting

1) Required tools/instruments

• + and – screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch

• Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

a) The following operations are normal.

1. Compressor does not operate.

• Is not 3-minutes delay (3 minutes after compressor OFF)?

• Is not the outdoor unit in standby status though the remote controller reached the setup temperature?

• Does not timer operate during fan operation?

• Is not an overflow error detected on the indoor unit?

• Is not outside high-temperature operation controlled in heating operation?

2. Indoor fan does not rotate.

• Does not cool air discharge preventive control work in heating operation?

3. Outdoor fan does not rotate or air volume changes.

• Does not high-temperature release operation control work in heating operation?

• Does not outside low-temperature operation control work in cooling operation?

• Is not defrost operation performed?

4. ON/OFF operation cannot be performed from remote controller.

• Is not the control operation performed from outside/remote side?

• Is not automatic address being set up? (When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.)

• Is not being carried out a test run by operation of the outdoor controller?

b) Did you return the cabling to the initial positions?

c) Are connecting cables of indoor unit and remote controller correct?

2. Troubleshooting procedure

When a trouble occurred, check the parts along with the following procedure.

Trouble Confirmation of check code display Check defective position and parts.

NOTE :

For cause of a trouble, power conditions or malfunction/erroneous diagnosis of microcomputer due to outer noise is considered except the items to be checked. If there is any noise source, change the cables of the remote controller to shield cables.

→→

– 66 –

Page 67

1. Before troubleshooting

1) Required tools/instruments

•+ and – screwdrivers, spanners, radio cutting pliers, nippers, etc.

• Tester, thermometer, pressure gauge, etc.

2) Confirmation points before check

a) The following operations are normal.

1. Compressor does not operate.

• Is not 3-minutes delay (3 minutes after compressor OFF)?

• Is not the outdoor unit in standby status though the remote controller reached the setup temperature?

• Does not timer operate during fan operation?

• Is not an overflow error detected on the indoor unit?

• Is not outside high-temperature operation controlled in heating operation?

2. Indoor fan does not rotate.

• Does not cool air discharge preventive control work in heating operation?

3) Outdoor fan does not rotate or air volume changes.

• Does not high-temperature release operation control work in heating operation?

• Does not outside low-temperature operation control work in cooling operation?

• Is not defrost operation performed?

4) ON/OFF operation cannot be performed from remote controller.

• Is not forced operation performed?

• Is not the control operation performed from outside/remote side?

• Is not automatic address being set up?

• Is not being carried out a test run by operation of the outdoor controller?

a) Did you return the cabling to the initial positions?

b) Are connecting cables between indoor unit and receiving unit correct?

2. Troubleshooting procedure

(When the power is turned on at the first time or when indoor unit address setting is changed, the operation cannot be performed for maximum approx. 5 minutes after power-ON.)

When a trouble occurred, check the parts along with the following procedure.

Confirmation of lamp display

Trouble

1) Outline of judgment

The primary judgment to check where a trouble occurred in indoor unit or outdoor unit is performed with the following method.

Method to judge the erroneous position by flashing indication on the display part of indoor unit (sensors of the receiving unit)

The indoor unit monitors operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.

→→

(When 4-way air discharge cassette type wireless remote controller is connected)

Check defective position and parts.

– 67 –

Page 68

9-2. Troubleshooting

9-2-1. Outline of judgment

The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with the following method.

Method to judge the erroneous position by flashing indication on the display part of the indoor unit (sensors of the receiving part)

The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.

: Go off, : Go on, : Flash (0.5 sec.)

Lamp indication

Operation

No indication at all

Operation

Flash

Operation

Timer Ready

Flash

Timer Ready

Alternate flash

Check code

—

E01

E02

E03

E08

E09

E10

E18

E04

P10

P12

Cause of trouble occurrence

Power supply OFF or miswiring between receiving unit and indoor unit

Receiving error Sending error

Communication stop

Duplicated indoor unit No. Duplicated master units of remote controller

Communication error between CPUs on indoor unit P.C. board

Wire connection error between indoor units, Indoor power OFF (Communication stop between indoor master and follower or between main and sub indoor twin)

Miswiring between indoor unit and outdoor unit or connection erorr (Communication stop between indoor and outdoor units)

Overflow was detected. Indoor DC fan error

 

Receiving unit



  

 

Miswiring or wire connection error



between receiving unit and indoor unit

 



Setup error

 

Protective device of indoor unit worked.

Operation

Timer Ready

Alternate flash

P03

P04

P05

P07

P15

P19

P20

P22

P26

P29

P31

Outdoor unit discharge temp. error Outdoor high pressure system error

Negative phase detection error Heat sink overheat error Outdoor unit error Gas leak detection error

4-way valve system error (Indoor or outdoor unit judged.)

Outdoor unit high pressure protection

Outdoor unit: Outdoor unit error Outdoor unit: Inverter Idc operation ∗1 Outdoor unit: Position detection error

Stopped because of error of other indoor unit in a group (Check codes of E03/L03/L07/L08)



Protective device of



outdoor unit worked.



    

 

Protective device of



outdoor unit worked.

 

∗1

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

– 68 –

Page 69

Lamp indication

Operation

Alternate flash

Operation

Alternate flash

Operation

Timer Ready

Check code

F01

F02

P10

F04

F06

F07

F08

F12

F13

F15

Cause of trouble occurrence

Heat exchanger sensor (TCJ) error Heat exchanger sensor (TC) error Indoor unit sensor error Heat exchanger sensor (TA) error

Discharge temp. sensor (TD) error Temp. sensor (TE) error Temp. sensor (TL) error Temp. sensor (TO) error Sensor error of outdoor unit ∗1 Temp. sensor (TS) error Temp. sensor (TH) error Temp. Sensor miswiring (TE, TS)

    

        

Simultaneous flash

Operation

Timer Ready

Simultaneous flash

Operation

Timer Ready

Flash

Operation

Timer Ready

Simultaneous flash

Operation

Timer Ready

Simultaneous flash

F29

F31

H01

H02

H03

H04

H06

L03

L07

L08

L09

L10

L20

L29

L30

L31

Indoor EEPROM error

Outdoor EEPROM error

Compressor break down Compressor lock Current detection circuit error Outdoor compressor system error ∗1 Case thermostat worked.

    

Outdoor unit low pressure system error

Duplicated master indoor units There is indoor unit of group connection → AUTO address

in individual indoor unit. Unsetting of group address

   

* If group construction and



address are not normal Missed setting when power supply turned on, (Unset indoor capacity) automatically goes to address

setup mode.

Unset model type (Service board) Duplicated indoor central addresses Outdoor unit and other error Others Outside interlock error Negative phase error

        

∗1: These are representative examples and the check code differs according to the outdoor unit to be combined.

– 69 –

Page 70

9-2-2. Others (Other than Check Code)

Lamp indication

Operation

Simultaneous flash

Operation

Timer Ready

Alternate flash

Check code

—

Cause of trouble occurrence

During test run

Disagreement of cool/heat (Automatic cool/heat setting to automatic cool/heat prohibited model, or setting of heating to cooling-only model)

– 70 –

Page 71

– 71 –

9-2-3. Check Code List (Indoor)

: Go on, ¥ : Flash, l : Go off ALT (Alternate): Alternate flashing when there are two flashing LED SIM (Simultaneous): Simultaneous flashing when there are two flashing LED

(Indoor unit detected)

Check code indication

TCC-LINK central &

Wired remote controller

E03

E04 E08 E10

E18

F01 F02 F10 F29 L03 L07 L08 L09 L20 L30 P01 P10 P12 P19 P31

(Remote controller detected)

Check code indication

Wired remote controller

E01

E02

E09

Sensor lamp indication

Block indication

Operation

Timer Ready Flash

¥¥ ¥¥ ¥¥ ¥¥ ¥

¥¡¥ ¥¡¥

¥¥

Sensor lamp indication

Block indication

Operation

Timer Ready Flash

Representative defective position

Regular communication error between indoor and remote controller

l l l l

¥ ¥ ¥ ¥

¥ ¥

When this warning was detected before group construction/address check finish at power supply was turned on, the mode shifts automatically to AUTO address setup mode.

Indoor/Outdoor serial error Duplicated indoor addresses Communication error between indoor MCU Regular communication error between

indoor master and follower units

ALT

Indoor unit, Heat exchanger (TCJ) error

ALT

Indoor unit, Heat exchanger (TC) error

ALT

Indoor unit, Room temp. sensor (TA) error

SIM

Indoor unit, other indoor P.C. board error

SIM

Duplicated setting of indoor group master unit

SIM

There is group cable in individual indoor unit.

SIM

Unset indoor group address

SIM

Unset indoor capacity

SIM

Duplicated central control system address

SIM

Outside error input to indoor unit (Interlock)

ALT

Indoor unit, AC fan error

ALT

Indoor unit, overflow detection

ALT

Indoor unit, DC fan error

ALT

4-way valve system error

ALT

Other indoor unit error

Representative defective position

No master remote controller, Remote controller communication (Receive) error

Remote controller communication (Send) error

Duplicated master remote controller

No communication from remote controller and network adapter (Also no communication from central control system)

There is error on serial communication between indoor and outdoor units Same address as yours was detected.

MCU communication error between main motor and micro computer Regular communication between indoor master and follower units is impossible,

Communication between twin master (main) and follower (sub) units is impossible. Open/short was detected on heat exchanger (TCJ). Open/short was detected on heat exchanger (TC). Open/short was detected on room temp. sensor (TA). EEPROM error (Other error may be detected. If no error, automatic address is repeated. There are multiple master units in a group.

When even one group connection indoor unit exists in individual indoor unit.

Indoor group address is unset.

Capacity of indoor unit is unset. Duplicated setting of central control system address Abnormal stop by outside error (CN80) input An error of indoor AC fan was detected. (Fan motor thermal relay worked.) Float switch worked. Indoor DC fan error (Over-current/Lock, etc.) was detected. In heating operation, an error was detected by temp. down of indoor heat exchanger sensor. Follower unit in group cannot operate by warning from [E03/L03/L07/L08] of master unit.

Signal cannot be received from indoor unit. Master remote controller was not set. (including 2 remote controllers)

Signal cannot be sent to indoor unit. In 2-remote controller control, both were set as master. (Indoor master unit stops warning

and follower unit continues operation.)

Explanation of error contents

Air conditioner operation

Automatic Operation

reset

continuation

¡ × ¡ ×

×× ×× ×× ×× ××

×× ×× ×× ××

¡ × ¡ ×

Air conditioner operation

Automatic Operation

reset

continuation

——

(Central control devices detected)

Check code indication

TCC-LINK central

C05

C06

C12

P30

NOTE: Even for the same contents of error such as communication error, the display of check code may differ according to detection device.

When remote controller or central controller detects an error, it is not necessarily related to operation of the air conditioner. In this list, the check codes that outdoor unit detects are not described.

Sensor lamp indication

Block indication

Operation

Timer Ready Flash

Is not displayed.

(Common use of

remote controller, etc.)

—

By warning unit

(Above-mentioned)

Representative defective position

Central control system communication (send) error

Central control system communication (receive) error

General-purpose device control interface batched warning

Group follower unit is defective.

Explanation of error contents

Signal sending operation of central control system is impossible. There are multiple same central devices. (AI-NET)

Signal receiving operation of central control system is impossible. An error on device connected to general-purpose device control interface of exclusive to

TCC-LINK/AI-NET Group follower unit is defective.

(For remote controller, above-mentioned [∗∗∗] details are displayed with unit No.

Air conditioner operation

Automatic Operation

reset

continuation

——

Page 72

– 72 –

Check Code List (Outdoor)

Remote controller indication

F04

F06

F08 F07 F12 F13 F15 F31

H01

H02 H03 H04

L10

L29

P03

P04

P05 P07 P15 P20 P22 P26 P29

E01

E02

E03

E04 E08

E09

E10

E18

L03 L07 L08 L09 L30

P19

Sensor lamp part

Block indication

Operation

Timer Ready Flash

¥¥¡ ¥¥¡ ¥¥¡

¥¥¡ ¥¥¡ ¥¥¡ ¥¥¡ ¥¥¡

l l

¥¡¥

¥ ¥ ¥

¥ ¥ ¥ ¥ ¥ ¥

¥ ¥ ¥ ¥ ¥

¥ ¥ ¥

l ll

ll ll

ll ll ll ll

¥¡¥ ¥

ALT

ALT ALT ALT ALT ALT SIM

SIM

ALT

ALT ALT ALT ALT ALT ALT ALT

SIM SIM SIM SIM SIM

ALT

: Go on, ¥ : Flash, l : Go off ALT (Alternate): Alternate flashing when there are two flashing LED SIM (Simultaneous): Simultaneous flashing when there are two flashing LED

Representative defective position

Outdoor unit Discharge temp. sensor (TD) error

Outdoor unit Temp. sensor (TE, TS, TL) error

Outdoor unit Outside temp. sensor (TO) error Outdoor unit Temp. sensor (TL) error Outdoor unit Temp. sensor (TS) error Outdoor unit Temp. sensor (TH) error Outdoor unit Misconnection of temp. sensor (TE, TS) Outdoor unit EEPROM error

Outdoor unit Compressor break down

Outdoor unit Compressor lock Outdoor unit Current detection circuit error Outdoor unit Case thermostat operation Outdoor unit Setting error of service P.C. board type

Outdoor unit Other outdoor unit error

Outdoor unit Discharge temp. error Outdoor unit

High pressure system error, Power supply voltage error Power supply error Outdoor unit Heat sink overheat Gas leak detection Outdoor unit High pressure system error Outdoor unit Outdoor fan error Outdoor unit Inverter Idc operation Outdoor unit Position detection error No remote controller master unit

Remote controller communication error

Remote controller send error

Regular communication error between indoor and remote controller

Indoor/Outdoor serial error Duplicated indoor addresses

Duplicated main remote controllers

Communication error between CPU Regular communication error between master and

follower indoor units Duplicated indoor master units There is group cable in individual indoor unit. Unset indoor group address Unset indoor capacity Outside error input to indoor unit (Interlock)

4-way valve inverse error

When this warning was detected before group construction/address check finish at power supply was turned on, the mode shifts automatically to AUTO address setup mode.

² ² ²

Detection

Outdoor

Outdoor Outdoor Outdoor Outdoor Outdoor Outdoor Outdoor

Outdoor Outdoor Outdoor Outdoor

Outdoor

Outdoor Outdoor Outdoor Outdoor Outdoor Outdoor Outdoor

Remote

controller

Remote

controller

Indoor

Indoor Indoor

Remote

controller

Indoor

Indoor Indoor Indoor Indoor Indoor Indoor

Outdoor

Open/Short of discharge temp. sensor was detected. Open/Short of heat exchanger temp. sensor was detected.

Miswiring between TE sensor and TS sensor Open/Short of outside temp. sensor was detected. Open/Short of heat exchanger temp. sensor was detected. Open/Short of suction temp. sensor was detected. Open/Short of heat sink temp. sensor (Board installed) was detected. Misconnection of outdoor heat exchanger temp. sensor and suction temp. sensor was detected. Outdoor P.C. board part (EEPROM) error was detected. When reached min-Hz by current release control, short-circuited current (Idc) after

DC excitation was detected. Compressor lock was detected. Current detection circuit error Case thermostat operation was detected. When outdoor service P.C. board was used, model type select jumper setting was inappropriate.

1) Defective parts on outdoor P.C. board (MCU communication, EEPROM, TH sensor error)

2) When outdoor service P.C. board was used, model type selection was inappropriate.

3) Other error (Heat sink abnormal overheat, gas leak, 4-way valve inverse error) was detected. Error was detected by discharge temp. release control. When case thermostat worked, error was detected by high release control from indoor/

outdoor heat exchanger temp. sensor. Power supply voltage error Power supply voltage error Abnormal overheat was detected by outdoor heat sink temp. sensor. Abnormal overheat of discharge temp. or suction temp. was detected. Error was detected by high release control from indoor/outdoor heat exchanger temp. sensor. Error (Over-current, lock, etc.) was detected on outdoor fan drive circuit. Short-circuited protective operation of compressor drive circuit element (G-Tr /IGBT) worked. Position detection error of compressor motor was detected. Signal was not received from indoor unit.

Main remote controller was not set. (including 2 remote controllers)

Signal cannot be sent to indoor unit.

No communication from remote controller and network adapter

Serial communication error between indoor and outdoor Same address as yours was detected. In 2-remote controller control, both were set as master.

(Indoor master unit stops warning and follower unit continues operation.) MCU communication error between main motor and micro computer Regular communication was impossible between master and follower indoor units.

Communication between twin master (Main unit) and follower (sub unit) was impossible. There are multiple master units in a group. When even one group connection indoor unit exists in individual indoor unit Indoor address group was unset. Capacity of indoor unit was unset. Abnormal stop by CN80 outside error input

In heating operation, error was detected by temp. down of indoor heat exchanger or temp. up ofTE, TS.

Explanation of error contents

Automatic Operation

reset

continuation

×× ××

¡¡

×× ×× ×× ×× ××

×× ××

×× ×× ××

×× ××

×× ×× ×× ×× ×× ××

——

¡ × ¡ ×

××

¡ ¡ ×

×× ×× ×× ×× ××

¡ ×

Page 73

– 73 –

Remote controller indication

F01 F02 F10

F29 P01 P10 P12 P31

—

L20

—

Sensor lamp part

Block indication

Operation

Timer Ready Flash

¥¥ ¥¥ ¥¥ ¥¥

l l l

By unit with warning No. ALT

l l l l

¥¥ ¥¥ ¥¥

—

¥¡¥

—

: Go on, ¥ : Flash, l : Go off ALT (Alternate): Alternate flashing when there are two flashing LED SIM (Simultaneous): Simultaneous flashing when there are two flashing LED

Representative defective position

ALT

Indoor unit Heat exchanger sensor (TCJ) error

ALT

Indoor unit Heat exchanger sensor (TC) error

ALT

Indoor unit Room temp. sensor (TA) error

SIM

Indoor unit Other indoor P.C. board error

ALT

Indoor unit Indoor fan error

ALT

Indoor unit Overflow detection

ALT

Indoor unit Indoor fan error

ALT

Other indoor unit error

Error in indoor group

LAN system communication error

SIM

LAN system communication error

There are multiple communication adapters.

Detection

Indoor Indoor Indoor Indoor Indoor Indoor Indoor Indoor

Network

adapter

Network adapter/

Center

Network adapter/

Center

Network

adapter

Explanation of error contents

Open/Short of heat exchanger (TCJ) was detected. Open/Short of heat exchanger (TC) was detected. Open/Short of room temp. (TA) was detected. EEPROM error (Other error may be detected. If no error, automatic address is repeated. Indoor AC fan error was detected. (Fan thermal relay worked.) Float switch worked. Indoor fan error (Over-current / Lock, etc.) was detected. Other indoor under condition of warning in group. E03/L07/L03/L08 warning Sub remote controller error in a group

(Details of remote controller are displayed with unit No. Only central control side is displayed.)

Communication error of central control system signal ∗ Is not displayed on the remote controller

Duplicated indoor address of central control system communication

There are multiple communication adapters on remote controller communication line.

Automatic Operation

reset

¡ × ¡ × ¡ ×

×× ×× ×× ××

¡ ×

——

¡¡

¡ ×

¡¡

continuation

Page 74

Error mode detected by indoor unit

Operation of diagnostic function

Check

code

E03

E04

E08

L03

L07

L08

L09

L30

P10

P12

P19

P31

F01

F02

F10

F29

E10

E18

Cause of operation

No communication from remote controller (including wireless) and communication adapter

The serial signal is not output from outdoor unit to indoor unit.

• Miswiring of inter-unit wire

• Defective serial sending circuit on outdoor P.C. board

• Defective serial receiving circuit on indoor P.C. board

Duplicated indoor unit address

Duplicated indoor master unit

There is group wire in individual indoor unit.

Unset indoor group address

Unset indoor capacity

Abnormal input of outside interlock

Float switch operation

• Float circuit, Disconnection, Coming-off, Float switch contact error

Indoor DC fan error

4-way valve system error

• After heating operation has started, indoor heat exchangers temp. is down.

Own unit stops while warning is output to other indoor units.

Coming-off, disconnection or short of indoor heat exchanger temp. sensor (TCJ)

Coming-off, disconnection or short of indoor heat exchanger temp. sensor (TC)

Coming-off, disconnection or short of indoor heat exchanger temp. sensor (TA)

Indoor EEPROM error

• EEPROM access error

Communication error between indoor MCU

• Communication error between fan driving MCU and main MCU

Regular communication error between indoor aster and follower units and between main and sub units

Status of

air conditioner

(Automatic reset)

(Follower unit)

(Automatic reset)

Stop

Condition

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Judgment and measures

1. Check cables of remote controller and communication adapters.

• Remote controller LCD display OFF (Disconnection)

• Central remote controller [97] check code

1. Outdoor unit does not completely operate.

• Inter-unit wire check, correction of miswiring

• Check outdoor P.C. board. Correct wiring of P.C. board.

2. When outdoor unit normally operates Check P.C. board (Indoor receiving / Outdoor sending).

1. Check whether remote controller connection (Group/Individual) was changed or not after power supply turned on (Finish of group construction/Address check).

* If group construction and address are not normal when the

power has been turned on, the mode automatically shifts to address setup mode. (Resetting of address)

1. Set indoor capacity (DN=11)

1. Check outside devices.

2. Check indoor P.C. board.

1. Trouble of drain pump

2. Clogging of drain pump

3. Check float switch.

4. Check indoor P.C. board.

1. Position detection error

2. Over-current protective circuit of indoor fan driving unit operated.

3. Indoor fan locked.

4. Check indoor P.C. board.

1. Check 4-way valve.

2. Check 2-way valve and check valve.

3. Check indoor heat exchanger (TC/TCJ).

4. Check indoor P.C. board.

1. Judge follower unit while master unit is [E03], [L03], [L07] or [L08].

2. Check indoor P.C. board.

1. Check indoor heat exchanger temp. sensor (TCJ).

2. Check indoor P.C. board.

1. Check indoor heat exchanger temp. sensor (TC).

2. Check indoor P.C. board.

1. Check indoor heat exchanger temp. sensor (TA).

2. Check indoor P.C. board.

1. Check indoor EEPROM. (including socket insertion)

2. Check indoor P.C. board.

1. Check indoor P.C. board.

1. Check remote controller wiring.

2. Check indoor power supply wiring.

3. Check indoor P.C. board.

– 74 –

Page 75

Error mode detected by remote controller or central controller (TCC-LINK)

Operation of diagnostic function

Check code

Not displayed at all (Operation on remote controller is impossible.)

E01

∗2

E02

E09

L20

Central controller

L20

—

∗3

Central controller

(Send)

C05

(Receive)

C06

—

Central controller

P30

Cause of operation

No communication with master indoor unit

• Remote controller wiring is not correct.

• Power of indoor unit is not turned on.

• Automatic address cannot be completed.

No communication with master indoor unit

• Disconnection of inter-unit wire between remote controller and master indoor unit (Detected by remote controller side)

Signal send error to indoor unit (Detected by remote controller side)

There are multiple main remote controllers. (Detected by remote controller side)

Duplicated indoor central addresses on communication of central control system (Detected by indoor/central controller side)

Communication circuit error of central control system (Detected by central controller side)

Indoor Gr sub unit error (Detected by central controller side)

Status of

air conditioner

Stop

(Automatic reset)

∗ If center exists,

operation continues.

Stop

(Automatic reset)

∗ If center exists,

operation continues.

Stop

(Sub unit

continues operation.)

Stop

(Automatic reset)

Continues

(By remote controller)

Continuation/Stop

(According

to each case)

Condition

—

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Power supply error of remote controller, Indoor EEPROM error

1. Check remote controller inter-unit wiring.

2. Check remote controller.

3. Check indoor power wiring.

4. Check indoor P.C. board.

5. Check indoor EEPROM. (including socket insertion)

→ Automatic address repeating phenom-

enon generates.

Receiving error from remote controller

1. Check remote controller inter-unit wiring.

2. Check remote controller.

3. Check indoor power wiring.

4. Check indoor P.C. board.

Sending error of remote controller

1. Check sending circuit inside of remote controller.

→ Replace remote controller.

1. In 2-remote controllers (including wireless), there are multiple main units.

Check that there are 1 main remote controller and other sub remote controllers.

1. Check setting of central control system network address. (Network adapter SW01)

2. Check network adapter P.C. board.

1. Check communication wire / miswiring

2. Check communication (U3, U4 terminals)

3. Check network adapter P.C. board.

4. Check central controller (such as central control remote controller, etc.)

5. Check terminal resistance. (TCC-LINK)

Check the check code of the corresponding unit from remote controller.

Judgment and measures

∗2 The check code cannot be displayed by the wired remote controller.

(Usual operation of air conditioner becomes unavailable.) For the wireless models, an error is notified with indication lamp.

∗3 This trouble is related to communication of remote controller (A, B), central system (TCC-LINK U3, U4), and

[E01], [E02], [E03], [E09] or [E18] is displayed or no check display on the remote controller according to the contents.

– 75 –

Page 76

Error mode detected by outdoor unit

The check code has been ramified from 4 series and after. The ramified check code is displayed only when both the indoor unit and the outdoor unit are 4 series and after.

(Ex. Combination of RAV-SM1404UT-E with RAV-SP1404AT-E)

When the indoor unit is 3 series and before, the conventional check code is displayed.

(Ex. Combination of RAV-SM1402BT-E and RAV-SP1404AT-E: Outdoor unit only is 4 series.)

Operation of diagnostic function

Check code

Indoor unit

before after

3 series 4 series

F04 F04

F06 F06

F07

F12

F15

F08 F08

L29 F13

F31

L10

L29

P07

P15

P19

H01 H01

H02 H02

H03 H03

Cause of operation

Disconnection, short of discharge temp. sensor (TD)

Disconnection, short of outdoor temp. sensor (TE)

Disconnection, short of outdoor temp. sensor (TL)

Disconnection, short of suction temp. sensor (TS)

Miss-mounting of outdoor temp. sensor (TE, TS)

Disconnection, short of outside temp. sensor (TO)

Disconnection, short of heat sink temp. sensor (TH)

Outdoor P.C. EEPROM error

Unset jumper of service P.C. board

Communication error between outdoor P.C. board MCU

Heat sink overheat error * Heat sink temp. sensor detected

over specified temperature.

Detection of gas leak * Discharge temp. sensor (TD),

Suction temp. sensor (TS) detected temperature over specified temp.

4-way valve inverse error * After heating operation has started,

indoor heat exchanger temp. lowers under the specified temp.

* After heating operation has started,

outdoor heat exchanger / suction temp. rises over the specified temp.

Compressor break down * Although operation has started,

operation frequency decreases and operation stops.

Compressor lock * Over-current detection after

compressor start-up

Current detection circuit error

Status of

air conditioner

Stop

Continue

Stop

Condition

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

1. Check discharge temp. sensor (TD).

2. Check outdoor P.C. board.

1. Check temp. sensor (TE).

2. Check outdoor P.C. board.

1. Check temp. sensor (TL).

2. Check outdoor P.C. board.

1. Check suction temp. sensor (TS).

2. Check outdoor P.C. board.

1. Check temp. sensor (TE, TS).

2. Check outdoor P.C. board.

1. Check outside temp. sensor (TO).

2. Check outdoor P.C. board.

1. Check outdoor P.C. board.

1. Outdoor service P.C. board Check model type setting jumper wire.

1. Check outdoor P.C. board.

1. Check screw tightening between PC. Board and heat sink and check radiator grease.

2. Check heat sink blast path.

1. Check gas leak, recharge

2. Check full open of service valve.

3. Check PMV (Pulse Motor Valve).

4. Check broken pipe.

5. Check discharge temp. sensor (TD), suction temp. sensor (TS).

1. Check operation of 4-way valve.

2. Check outdoor heat exchanger (TE), suction temp. sensor (TS).

3. Check indoor heat exchanger sensor (TC).

4. Check 4-way valve coil.

5. Check PMV (Pulse Motor Valve).

1. Check power supply voltage. (AC198 to 264V)

2. Overload operation of refrigerating cycle

1. Trouble of compressor (Lock, etc.): Replace compressor.

2. Wiring error of compressor (Open phase)

1. Check outdoor P.C. board. (AC current detection circuit)

Judgment and measures

– 76 –

Page 77

Check code

Indoor unit

before after

3 series 4 series

P03 P03

P04 H04

P05

P20

P22 P22

P26 P26

P29 P29

Operation of diagnostic function

Cause of operation

Discharge temp. error ∗ Discharge temp. (TD) over specified

value was detected.

Case thermostat operation ∗ Abnormal overheat of compressor

Power supply voltage error

High pressure protective operation

• During cooling operation, outdoor temp. sensor (TL) detected temperature over specified temp.

• During heating operation, indoor temp. sensor (TC, TCJ) detected temperature over specified temp.

Outdoor fan system error

Short-circuit error of compressor driving element

Position detection circuit error

Status of

air conditioner

Stop

Condition

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Displayed when

error is detected

Judgment and measures

1. Check refrigerating cycle (Gas leak)

2. Trouble of electronic expansion valve

3. Check discharge temp. sensor (TD).

1. Check case thermostat and connector.

2. Check gas leak, recharge

3. Check full open of service valve.

4. Check PMV (Pulse Motor Valve).

5. Check broken pipe.

1. Check power supply voltage. AC198 to 264V

1. Check outdoor heat exchanger sensor (TL).

2. Check indoor heat exchanger sensor (TC, TCJ).

3. Check full open of service valve.

4. Check indoor/outdoor fan.

5. Check PMV (Pulse Motor Valve).

6. Check clogging and short circuit of indoor/outdoor heat exchanger.

7. Overcharge of refrigerant. Recharge

1. Check lock of fan motor.

2. Check power supply voltage. AC198 to 264V

3. Check outdoor P.C. board.

1. When performing operation while taking-off compressor wire, P26 error occurs. Check control P.C. board.

2. When performing operation while taking-off compressor wire, an error does not occur. (Compressor rare short)

1. Check control P.C. board.

– 77 –

Page 78

9-2-4. Diagnostic Procedure for Each Check Code (Indoor Unit)

Check code [E01 error]

Is inter-unit cable of A and B normal?

YES

Is there no disconnection or

contact error of connector on harness

from terminal block of indoor unit?

Is group control operation?

YES

Is power of all indoor units turned on?

YES

Is power supplied to remote controller?

AB terminal: Approx. DC18V

YES

Correct inter-unit cable

of remote controller

Correct connection of connector.

Check circuit wiring.

Check power connection of indoor unit.

(Turn on power again.)

Check indoor P.C. board (MCC-1570).

Defect → Replace

[E09 error]

Are 2 remote controllers set

without master unit?

Are 2 master units set in

2 remote controllers?

YES

Correct a master unit/a follower unit.

(Remote controller address connector)

Check remote controller P.C. board.

Defect → Replace

Correct as a master unit

and a follower unit.

Check remote controller P.C. board.

Defect → Replace

– 78 –

Page 79

[E04 error]

Does outdoor operate?

YES

Check indoor P.C. board.

Defect → Replace

Is group address setup of remote controller correct?

YES

Are wiring in indoor unit and

1, 2, 3 inter-unit cables correct?

YES

Are wirings of terminal blocks

(1, 2, 3) wired to CN04 normal?

YES

Does D502 (Orange LED) flash

after power supply turned on again?

YES

Check outdoor P.C. board.

Defect → Replace

Check Item code [14].

Correct wiring and

inter-unit cables.

Correct wiring of connector

and terminal blocks.

Check indoor P.C. board.

Defect → Replace

[E10 error]

Is there no disorder of power supply?

Check indoor control P.C. board

(MCC-1570).

Defect → Replace

YES

Check power supply voltage.

Correct lines.

Check and eliminate noise, etc.

– 79 –

Page 80

[E18 error]

Is inter-unit cable

of A and B normal?

YES

Is there no disconnection

or contact error of connector

on harness from terminal block

of indoor unit?

Is group control operation?

YES

Is power of all indoor units turned on?

YES

Is Twin control?

YES

Correct inter-unit cable

of remote controller.

Correct connection of connector.

Check circuit wiring.

Check power

connection status of indoor unit

(Connect again).

Is there no contact error

of indoor/outdoor inter-unit cable

(Signal line) of the main unit?

YES

Correct indoor/outdoor inter-unit cable

(Serial signal line).

Check indoor P.C. board

(MCC-1570).

Defect → Replace

[E08, L03, L07, L08 error]

E08: Duplicated indoor unit No. L03: There are 2 or more master units in a group control. L07: There is 1 or more group address [Individual] in a group control. L08: The indoor group address is unset. (12. ADDRESS SETUP)

If the above error is detected when power supply turned on, the mode enters automatically in the automatic address set mode. (Check code is not output.)

However, if the above error is detected during the automatic address set mode, a check code may be output.

[L09 error]

Is not yet capacity setting

of indoor unit set up?

YES

Set capacity data of indoor unit.

(Setup item code (DN)=11)

Check indoor P.C. board (MCC-1570).

Defect → Replace

– 80 –

Page 81

[L20 error]

Are wiring connections to communication lines

U3 and U4 normal?

YES

Is not the multiple same central

control system addresses connected?

Check central controller

(including network adapter) and

indoor P.C. board (MCC-1570).

Defect → Replace

[L30 error]

Are outside devices of

connector CN80 connected?

YES

Correct wiring connection.

Correct central control system address.

Check indoor P.C. board (MCC-1570).

Defect → Replace

YES

Do outside devices normally work?

YES

Check cause of operation.

[P30 error] (Central controller)

Is group operation carried out?

YES

Is there check code

on sub remote controller in main

and sub remote controllers?

Check outside devices.

Defect → Replace

YES

Check corresponding

indoor unit/outdoor unit.

Check indoor P.C. board (MCC-1570).

Defect → Replace

– 81 –

Page 82

[P10 error]

Is connection of

float switch connector

(Indoor control board CN34)

normal?

YES

Does float switch work?

YES

Does drain pump work?

YES

drain pump turned on? ∗

Is power of

YES

Is circuit wiring normal?

Check and correct wiring

and wire circuit.

NO NO

Are connector pins 1 and 2

at drain pump unit side shorted

(Resistance value 0)?

Correct connection

of connector.

YES

Check the drain pipe, etc.

Replace drain pump.

Check wiring.

∗ Check that voltage of 1-2 pin of CN504 on the indoor P.C. board is +12V. (1 pin is plus (+).)

Replace drain pump

and indoor P.C. board

(MCC-1570).

[F10 error]

Is connection of TA sensor connector

(CN104 on indoor P.C. board) correct?

YES

Are characteristics of

TA sensor resistance value normal?

Correct connection of connector.

Check indoor P.C. board

(MCC-1570).

Defect → Replace

Replace TA sensor.

YES

Check indoor P.C. board (MCC-1570).

Defect → Replace

∗ Refer to Characteristics-1.

– 82 –

Page 83

[P12 error]

Turn off the power.

Is there no connection error or

disconnection on connectors CN333

and CN334 of indoor unit P.C. board

Does the fan rotate without trouble

when handling the fan with hands?

between phases at fan motor connector

CN333 motor side of indoor P.C. board

(MCC-1570)?

Remove connectors CN333

(MCC-1570).

YES

Are resistance values

(MCC-1570) correct?

Correct

∗1

• Are not coil windings between c (Red lead) and e (White lead),

• Is not grounded between cabinet and

∗1

between between → The resistance should be the resistance value below.

SM56, SM80 → Approx. 70 to 100Ω SM110, SM140 → Approx. 27 to 40Ω

(White lead) and g (Black lead),

(Black lead) and c (Red lead) opened or shorted?

YES

Incorrect

Correct connection

of connector.

Replace indoor fan motor.

c, e, g

. → It should be 10MΩ or more.

CN333

CN334

Replace indoor fan motor.

fan motor connector CN334 motor side

Is resistance value of

of indoor P.C. board

(MCC-1570) correct?

Correct

Is output of

indoor fan motor position

detection signal correct?

YES

∗2

Resistance value confirmation of the fan motor position detection circuit Is not status between

→ The resistance should be approx. 5k to 20kΩ.

∗3

Confirmation of the fan motor position detection signal

• Using a voltage tester, measure voltage between CN334 (MCC-1570) under condition that CN333 and CN334 are mounted and the power supply is turned on. → When rotating the fan slowly with hands, the pin voltage should shake between 0 and 5V.

• Between

∗2

∗3

and e: 5V

Incorrect

(Yellow lead) and d (Pink lead) opened or shorted?

Replace indoor fan motor.

and e on the indoor P.C. board

Check indoor P.C. board

(MCC-1570).

Defect → Replace

– 83 –

Page 84

[F02 error]

Is connection of TC sensor connector

(CN101 on Indoor P.C. board) correct?

TC sensor resistance value normal?

Check indoor P.C. board (MCC-1570).

[F01 error]

Is connection of TCJ sensor connector (CN102 on Indoor P.C. board) correct?

YES

Are characteristics of

YES

∗ Refer to Characteristics-2.

Defect → Replace

Correct connection of connector.

Replace TC sensor.

Correct connection of connector.

YES

Are characteristics of

TCJ sensor resistance value normal?

YES

∗ Refer to Characteristics-2.

Check indoor main P.C. board (MCC-1570).

Defect → Replace

Replace TCJ sensor.

– 84 –

Page 85

[C06 error] (TCC-LINK central controller)

Are U3 and U4 communication lines normal? Correct communication line.

YES

∗1

Is connection of connector normal?

YES

Are A and B communication lines normal?

YES

Is there no connection error of power supply cable?

Is not the source power supply turned on?

∗1

TCC-LINK central: CN51 of TCC-LINK adapter P.C. board (MCC-1440) and CN050 of indoor P.C. board

YES

Correct connection of connector.

Check connection of A and B terminal blocks.

Correct communication line of remote controller.

Correct power wiring.

Turn on the source power supply.

YES

Did a power failure occur?

Is the network address changed

from the remote controller?

Is there no noise source?

Can the other indoor units

be normally controlled from the central controller?

Or is the operation status of indoor unit reflected?

YES

Can the indoor unit be normally controlled

from the remote controller?

YES

Uncontrolled

(Same to others)

Uncontrolled

Clear the check code.

Eliminate noise, etc.

Check central controller.

Defect → Replace

Check indoor P.C. board (MCC-1570).

Defect → Replace

YES

Check power supply transformer on

TCC-LINK adapter P.C. board (MCC-1440).

Defect → Replace

– 85 –

Page 86

[E03 error] (Master indoor unit)

[E03 error] is detected when the indoor unit cannot receive a signal from the remote controller (also central controller).

Check A and B remote controllers and communication lines of the central control system U3 and U4. As communication is impossible, this check code [E03] is not displayed on the remote controller and the central

controller. [E01] is displayed on the remote controller and [C06 error] is displayed on the central controller. If these check codes generate during operation, the air conditioner stops.

[F29 error]

This check code indicates a detection error of IC10 non-volatile memory (EEPROM) on the indoor unit P.C. board, which generated during operation of the air conditioner. Replace the service P.C. board.

∗ When EEPROM was not inserted when power supply turned on or when the EEPROM data read/write

operation is impossible at all, the automatic address mode is repeated. In this time, [97 error] is displayed on the central controller.

(Power ON)

(Approx.

3 minutes)

[SET] is displayed

on remote controller.

(Approx.

1 minute)

[SET]

goes off.

(Repetition)

LED (D02) on indoor unit

P.C. board flashes with

1Hz for approx. 10 seconds.

Reboot (Reset)

[P31 error] (Follower indoor unit)

When the master unit of a group operation detected [E03], [L03], [L07] or [L08] error, the follower unit of the group operation detects [P31 error] and then the unit stops.

There is no display of the check code or alarm history of the remote controller. (In this model, the mode enters in automatic address set mode when the master unit detected [L03], [L07] or [L08] error.)

– 86 –

Page 87

9-2-5. Diagnostic Procedure for Each Check Code (Outdoor Unit)

1) This section describes the diagnostic method for each check code displayed on the remote controller.

2) In some cases, a check code indicates multiple symptoms. In this case, confirm LED display on the outdoor P.C. board to narrow the contents to be confirmed.

3) The check code on the remote controller is displayed only when the same error occurred continuously by multiple times while LED of the outdoor P.C. board displays even an error which occurred once. Therefore the display on the remote controller may differ from that of LED.

LED display on outdoor P.C. board

Dip switch setup

• When turning on 1) only of SW803, the latest error is displayed. As the memory is stored, it can be confirmed even if the power supply is turned off once. (excluding outside temp. sensor (TO) error)

• When the work finished or the outdoor temp. sensor (TO) error was found, turn off all of SW803. (The error which occurs at present is displayed.)

Display selection

• When even a LED of D800 to D804 (Yellow) goes on, error occurrence is indicated. <Display 1>

• If pushing the button switch SW800 for 1 second under the above condition, the yellow LED is displayed with flashing. <Display 2>

• When pushing SW800 for 1 second again, the status returns to <Display 1>.

• The error contents can be confirmed by combining

<Display 1> and <Display 2>.

Only 1) of SW803 is ON.

1234

<Error display, which occurs at present)

All SW803 are OFF. (Initial status)

1234

(No error) (Error occurred) (Push SW800)

D800 (Yellow)

D801 (Yellow)

D802 (Yellow)

D803 (Yellow)

D804 (Yellow)

D805 (Green)

l l ll lll l

¡¡¡

(Example of discharge temp. sensor error)

: Go off, ¡ : Go on, ¥ : Flash

¡ ¡

l l

Check

code

[E04]

Outdoor

LED display

—

(Item without special mention Indicates part of outdoor unit.)

[Indoor/Outdoor communication error]

Is setting of group address

of remote controller correct?

YES

Are inner wiring and

inter-unit cables (1, 2, 3) normal?

YES

Are CN04 connection and

wiring of terminal blocks (1, 2, 3) normal?

YES

Does D502 (Orange LED) flash after

power supply is turned on again?

YES

Check and troubleshooting

Correct wiring of connectors

Check Item code [14].

and inter-unit cable.

and terminal blocks.

Check indoor P.C. board.

Check outdoor P.C. board.

– 87 –

Correct wiring

Defect → Replace

Page 88

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[F04]

[F06]

¡ ¡

l l

¡ ¡¡

¡ ¡ ¥

¡ ¡¡

[Discharge temp. sensor (TD) error]

Is CN603 connection normal?

Is resistance value of TD sensor normal?

YES

• There is a possibility that it is one of the following errors. Confirm LED on outdoor P.C. board to judge which error it is. Heat exchanger temp. sensor (TE) error, Heat exchanger temp. sensor (TL) error,

Suction temp. sensor (TS) error, Miswiring of heat exchanger sensor (TE, TS)

Heat exchanger temp. sensor (TE) error]

Is CN601 connection normal?

Is resistance value of TE sensor normal?

YES

Correct connector.

Sensor error → Replace

Check outdoor P.C. board.

Defect → Replace

Correct connector.

Sensor error → Replace

Check outdoor P.C. board.

Defect → Replace

[Heat exchanger temp. sensor (TL) error] → Refer to [F07] column.

¡ ¥ ¡ ¥

¡ ¡¡

¡ ¡

l l

¡ ¡¡

¡ ¥ ¡ ¥

l l

¡ ¡¡

[F07] [Heat exchanger temp. sensor (TL) error]

¡ ¥ ¡ ¥

l ll

¡ ¡¡

l l

¥ ¥

[Suction temp. sensor (TS) error] → Refer to [F12] column.

[Miswiring of heat exchanger sensor (TE, TS)] → Refer to [F15] column.

Is CN604 connection normal?

Is resistance value of TL sensor normal?

YES

Correct connector.

Sensor error → Replace

Check outdoor P.C. board.

Defect → Replace

– 88 –

Page 89

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[F08]

[F12]

[F13]

[F15]

¡ ¡

l ll l

¡ ¡¡

¡ ¡

l l

¡ ¡¡

¡ ¥ ¡

l l

¡ ¡¡

¡ ¥ ¡ ¥

l l

¡ ¡¡

[Outside air temp. sensor (TO) error]

Is CN602 connection normal?

Is resistance value of TO sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

[Suction temp. sensor (TS) error]

Is CN600 connection normal?

Is resistance value of TS sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

[Heat sink temp. sensor (TH) error]

Check outdoor P.C. board.

Defect → Replac

[Miswiring of heat exchanger sensor (TE, TS)]

Is mounting status of

TE and TS sensors normal?

YES

Is CN600 connection normal?

Is resistance value of TS sensor normal?

Correct connector.

Sensor error → Replace

Correct connector.

Sensor error → Replace

Correct sensor mounting.

Correct connector.

Sensor error → Replace

[F31]

¡ ¥ ¡ ¥

l l

¡ ¥ ¡¡

YES

Is CN601 connection normal?

Is resistance value of TE sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

[EEPROM error]

Check outdoor P.C. board.

Defect → Replace

– 89 –

Correct connector.

Sensor error → Replace

Page 90

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[H01]

[H02]

l ll

¡ ¡¡

ll l

l ll

¡ ¡¡

[Compressor break down]

Is power supply voltage normal?

AC198 to 264V

YES

Is wire connection normal?

Compressor lead

(Board side, Compressor side),

Reactor lead, Power supply lead

YES

Is it not abnormal overload?

Check outdoor P.C. board.

Defect → Replace

[Compressor lock]

Is power supply voltage normal?

AC198 to 264V

YES

Is wire connection normal?

Compressor lead

(Board side, Compressor side),

Reactor lead, Power supply lead

YES

Correct power supply line.

Check wire connection

and correct it.

Correct and clear the cause.

Correct power supply line.

Check wire connection

and correct it.

[H03]

l l

l ll

¡ ¡¡

YES

Is compressor normal?

Is there no refrigerant stagnation?

YES

Does PMV normally operate?

YES

Check outdoor P.C. board.

Defect → Replace

[Current detection circuit error]

Check outdoor P.C. board.

Defect → Replace

YES

Check outdoor P.C. board.

Defect → Replace

Compressor lock → Replace

Check TE, TS sensors and PMV.

Defect → Replace

– 90 –

Page 91

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[H04]

ll ll

¡ ¡¡

[Case thermostat operation]

Are CN609 connection

and case thermostat normal?

YES

Is cooling/heating operation

available when short-circuiting

case thermostat?

YES

Is there no gas leak?

Is it not refrigerant shortage?

YES

Is valve fully opened?

YES

Is PMV normal?

YES

Correct connector.

Case thermostat error → Replace

Check outdoor P.C. board.

Defect → Replace

Repair defectives position.

Recharge refrigerant.

Open valve fully.

Correct defective position.

Replace defective part.

Check crushed or broken pipe. Defect → Correct and Replace

[L10] [Unset model type]: Only when service P.C. board is used

¡ ¥ ¡

¡¡

Cut jumper line according

to the explanation sheet packaged

with the service P.C. board.

– 91 –

Page 92

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[L29]

¡ ¥

¡ ¥ ¡¡

¡ ¥ ¡ ¥ ¡ ¥

¡ ¡¡

¡ ¥ ¡ ¥

l l

¡ ¥ ¡¡

¡ ¥ ¡

¡¡

¡ ¥ ¡ ¥ ¡ ¥

¡ ¡¡

¡ ¥ ¡ ¥ ¡ ¥

¡ ¡¡

¡ ¥ ¡ ¥ ¡

l ll

¡ ¥ ¡¡

∗ There is a possibility that it is one of the following errors.

Confirm LED on outdoor P.C. board to judge which error it is. Communication error between MCU, Heat sing temp. sensor (TH) error,

EEPROM error, Unset model type, Heat sink overheat error, Gas leak detection, 4-way valve inverse error

[Communication error between MCU]

Check outdoor P.C. board.

Defect → Replace

[Heat sink temp. sensor (TH) error] → Refer to [F13] column.

[EEPROM error] → Refer to [F31] column.

[Unset model type] → Refer to [L10] column.

[Heat sink overheat error] → Refer to [P07] column.

[Gas leak detection] → Refer to [P15] column.

[4-way valve inverse error] → Refer to [P19] column.

– 92 –

Page 93

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[P03]

[P04]

¡ ¥ ¡ ¥ ¡

l ll

¡ ¡¡

[Discharge temp. error]

Is refrigerant charge amount adequate?

Is there no gas leak?

YES

Is PMV normal?

YES

Is it not abnormal overload?

Is CN603 connection normal?

Is resistance value of TD sensor normal?

YES

Check outdoor P.C. board.

Defect → Replace

∗ There is a possibility that it is one of the following errors.

Confirm LED on outdoor P.C. board to judge which error it is. Power supply error (Vdc), High pressure protective operation, Case thermostat

operation

YES

Repair defective position.

Recharge refrigerant.

Repair defective position.

Replace defective part.

Correct and clear the cause.

Correct connector.

Sensor error → Replace

[P05]

ll ll

¡ ¥

¡ ¡¡

¡ ¥ ¡ ¡ ¥

¡ ¡¡

¡ ¡ ¡ ¥

¡ ¥ ¡¡

¡ ¥ ¡

¡ ¥

¡ ¡¡

[Case thermostat operation] → Refer to [H04] column.

[Power supply error (Vdc)] → Refer to [P05] column.

[High pressure protective operation] → Refer to [P20] column.

[Power supply error (Voltage error)]

Is there no down or up

of power supply voltage?

(AC198 to 264V)

Check outdoor P.C. board.

Defect → Replace

YES

Confirm electric construction, etc.

– 93 –

Page 94

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[P07]

¡ ¥ ¡ ¥ ¡ ¥

¡ ¡¡

[Heat sink overheat error]

Is there no loosening of

screws of motor drive element of

outdoor P.C. board Q200, Q300, Q400

and rectifier DB01, DB02, DB03?

Did not forget to apply

radiation grease to rear side of

Q200, DB01, DB02 or DB03?

Is not the ventilation flue

of the heat sink blocked?

Is not the fan blocked?

(Short-circuit, etc.)

YES

Check outdoor P.C. board.

Defect → Replace

YES

Apply radiation grease to objective part.

(Be sure not to forget to attach insulating sheet

Retightening of screws.

between heat sink and Q300, Q400.)

Remove blocking matter.

Correct short-circuit.

[P15] <Display 1> <Display 2>

¡ ¥ ¡ ¥ ¡ ¥

¡¡

[Gas leak detection]

Is there no gas leak?

Is refrigerant charge amount adequate?

YES

Is PMV normal?

YES

Is valve fully opened?

YES

Is there no crushed pipe?

Check temp. sensor.

TD sensor CN603 TS sensor CN600

Check outdoor P.C. board.

Defect → Replace

YES

Error

Repair defective position.

Recharge refrigerant.

Correct defective position.

Replace defective part.

Open valve fully.

Correct and replace piping.

Correct connector.

Sensor error → Replace

– 94 –

Page 95

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[P19]

¡ ¥ ¡ ¥ ¡

l ll

¡ ¥ ¡¡

[4-way valve inverse error]

Is operation of

4-way valve normal?

(Check pipe temp., etc. in

cooling/heating operation.)

Is the coil

resistance value of 4-way valve

between 1.3 and 1.6kΩ?

YES

Check operation of

outdoor P.C. board.

(See below.)

Check 4-way valve.

Defect → Replace

YES

Error

Temperature sensor check

TE sensor CN601 TS sensor CN600

Indoor TC sensor

Defect → Correct and repair

Replace coil of 4-way valve.

Check outdoor P.C. board.

Defect → replace

Check method of outdoor P.C. board operation (Self-hold valve type)

1) Set SW804 of Dip switch as the following figure and then push SW801 for approx. 1 second to check exchange operation to cooling cycle/heating cycle.

• Power is turned on for approx. 10 seconds.

• When checking again, check operation 1 minute or more after the first check

because exothermic of part (Coil, resistance R700) is large. (There is no problem when coil is not connected.)

2) After check, turn off all the Dip switch SW804.

Exchange to cooling cycle

SW804 SW801 CN701

Push

1234

DC200V or more

Exchange to heating cycle

SW804 SW801 CN701

Push

1234

Note) Check by tester

Analog tester : Good if over DC200V Digital tester : Good if Max. value is over DC200V though the varied

value may be displayed.

DC200V or more

– 95 –

Page 96

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[P20]

¡ ¡

l l

¡ ¥

¡ ¥ ¡¡

[High pressure protective operation]

Is valve fully opened?

YES

Reset the power supply

and then perform test run

matching to the season.

Heating season Heating operation

Is there no problem

on outdoor TL sensor?

(Measurement of resistance value)

YES

Is there no crack or

loosening of outdoor fan?

YES

Does not the outdoor fan

perform abnormal operation?

YES

Open valve fully.

Cooling season Cooling operation

Replace sensor.

Check outdoor fan.

Defect → Replace, retightening

Check the same items as

[P22] error.

which interfere heat exchange

• Clogging of heat exchanger

• Short circuit

Check overcharge of refrigerant, clogging of cycle, broken pipe, abnormal overload, etc. Defect → Correct defective position.

Does indoor fan

normally operate?

YES

Is there no element which

interfere heat exchange of indoor unit?

• Clogging of filter

• Clogging of heat exchanger

• Short circuit

Is there no element

of outdoor unit?

Are indoor fan motor

and connector normal?

YES

Are resistance values of indoor TC and TCJ

sensors normal?

YES

Eliminate interfering element.

Repair defective position.

Check indoor P.C. board.

Defect → Replace

Eliminate interfering element.

Replace

sensor.

Check overcharge of refrigerant, clogging of cycle, broken pipe, abnormal overload, etc. Defect → Correct defective position.

– 96 –

Page 97

Check

code

Outdoor

LED display

(Item without special mention Indicates part of outdoor unit.)

Check and troubleshooting

[P22]

¡ ¥ ¡ ¥

¡ ¥ ¡¡

[Fan system error]

Is there no problem on power supply voltage?

Does the fan rotate without trouble when rotating

shaft of fan motor with hands during power-OFF?

Is there no problem on coil resistance of fan motor?

Between red and white lead wire : 12 to 20Ω Between white and black lead wire : 12 to 20Ω Between black and red lead wire : 12 to 20Ω

Single operation check for outdoor fan

1) Set SW804 of Dip switch as the following figure and then push SW801 for approx. 1 second to check single operation of outdoor fan. Use this method to check which fan, upper or lower fan, has a trouble.

• When pushing SW801 for 1 second

again or 2 minutes passed, the fan stops.

2) After check, turn off all Dip switch SW804.

(198 to 264V)

YES

Replace fan motor.

Check wiring construction.

Ask repair of power supply.

YES

Check outdoor P.C. board.

Defect → Replace

Outdoor fan single operation

SW804 SW801

Push

1234

[P26]

[P29]

—

No code

¡ ¥ ¡

¡ ¥ ¡¡

¡ ¥ ¡

¡ ¥

¡ ¥ ¡¡

¡ ¥ ¡ ¥

¡ ¥ ¡¡

[Short-circuit of compressor drive element]

Is there no problem on connection

of compressor lead or reactor?

(Check referring to Wiring diagram.)

YES

The same error does not occur in

operation without compressor lead.

YES

Check compressor. (Rear short, etc.)

[Position detection circuit error]

[Other error] Compressor disorder due to sudden change of load, etc.

∗ Although the display of outdoor LED outputs, the unit automatically restarts

and error is not determined.

∗ LED display also may output due to negative phase of compressor or wire

coming-off.

Defect → Replace

Check outdoor P.C. board.

Defect → Replace

Correct wiring.

Replace outdoor P.C. board.

– 97 –

Page 98

Temperature sensor Temperature – Resistance value characteristic table

TA, TC, TCJ, TE, TS, TO sensors

Representative value

Temperature

(°C)

100

(Minimum value) (Standard value) (Maximum value)

32.33 33.80 35.30

19.63 20.35 21.09

12.23 12.59 12.95

9.75 10.00 10.25

7.764 7.990 8.218

5.013 5.192 5.375

3.312 3.451 3.594

2.236 2.343 2.454

1.540 1.623 1.709

1.082 1.146 1.213

0.7740 0.8237 0.8761

0.5634 0.6023 0.6434

Resistance value (kW)

TA, TC, TCJ, TE, TS, TO sensors

TD, TL sensors

Representative value

Temperature

(°C)

100

(Minimum value) (Standard value) (Maximum value)

150.5 161.3 172.7

92.76 99.05 105.6

58.61 62.36 66.26

47.01 49.93 52.97

37.93 40.22 42.59

25.12 26.55 28.03

17.00 17.92 18.86

11.74 12.34 12.95

8.269 8.668 9.074

5.925 6.195 6.470

4.321 4.507 4.696

3.205 3.336 3.468

Resistance value (kW)

Resistance (kΩ)

10 20 30 40 50 60 70 80 90 100

Temperature (˚C)

TD, TL sensors

200

150

100

Resistance (kΩ) (50˚C or higher)

Resistance (kΩ) (50˚C or lower)

10 20 30 40 50 60 70 80 90 100

Temperature (˚C)

∗ As TH sensor (Outdoor unit heat sink temp. sensor) is incorporated in the outdoor control P.C. board, the resistance

value cannot be measured.

– 98 –

Page 99

10. REPLACEMENT OF SERVICE P.C. BOARD

10-1. Indoort Unit

<Note: when replacing the P.C. board for indoor unit servicing>

The nonvolatile memory (hereafter called EEPROM, IC503) on the indoor unit P.C. board before replacement includes the model specific type information and capacity codes as the factory-set value and the important setting data which have been automatically or manually set when the indoor unit is installed, such as system/ indoor/group addresses, high ceiling select setting, etc.

When replacing the P.C. board for indoor unit servicing, follow the procedures below.

After replacement completes, confirm whether the settings are correct by checking the indoor unit No., Group header unit/follower unit settings and perform the cooling cycle confirmation through the trial operation.

CASE 1

Before replacement, the indoor unit can be turned on and the setting data can be read out by wired remote control operation.

EEPROM data read out [1]

Replacement of P.C. board for Indoor unit servicing and power on [2]

Writing the read out EEPROM data [3]

Power reset

(for all indoor units connected to the remote control when the group operation control is performed.)

CASE 2

The EEPROM before replacement is defective and the setting data cannot be read out.

EEPROM data read out [2]

Writing the setting data to EEPROM, such as high ceiling installation setting and

optional connection setting, etc., based on the customer information. [3]

Power reset

(for all indoor units connected to the remote control when the group operation control is performed.)

– 99 –

Page 100

[1] Setting data read out from EEPROM

The setting data modified on the site, other than factory-set value, stored in the EEPROM shall be read out.

Step 1 Push

SET, CL

∗ When the group operation control is performed, the unit No. displayed for the first time is the header unit No.

At this time, the CODE No. (DN) shows “ and the swing operation also starts if it has the louvers.

Step 2 Every time when the

order. Specify the indoor unit No. to be replaced.

1. Change the CODE No. (DN) to (this is the setting for the filter sign lighting time.)

At this time, be sure to write down the setting data displayed.

2. Change the CODE No. (DN) by pushing Similarly, be sure to write down the setting data displayed.

3. Repeat the step 2-2 to set the other settings in the same way and write down the setting data as shown in the table 1 (example).

∗ The COCE No. (DN) are ranged from “

Step 3 After writing down all setting data, push

(It takes approx. 1 min until the remote controller operation is available again.)

CODE No. required at least

Contents

Indoor unit capacity

System address

Indoor unit address

Group address

and

Type

TEST

button on the remote controller simultaneously for more than 4 seconds.

10 ”. Also, the fan of the indoor unit selected starts its operation

UNIT LOUVER

button is pushed, the indoor unit No. under the group control is displayed in

10-01 by pushing / buttons for the temperature setting.

/ buttons for the temperature setting.

01 ” to “FF ”. The CODE No. (DN) may skip.

TEST

button to return to the normal stop status.

1. The CODE No. for the Indoor unit type and Indoor unit capacity are required to set the rotation number setting of the fan.

2. If the system/indoor/group addresses are different from those before replacement, the auto-address setting mode starts and the manual resetting may be required again. (when the multiple units group operation including twin system.)

[2] P.C. Board for indoor unit servicing replacement procedures

Step 1 Replace the P.C. board to the P.C. board for indoor unit servicing.

At this time, perform the same setting of the jumper wire (J01) setting (cut), switch SW501, (short-circuit) connector CN34 as the setting of the P.C. board before replacement.

Step 2 According to the system configuration, turn on the indoor unit following to the either methods shown below.

a) Single operation (Indoor unit is used as standalone.)

Turn on the indoor unit.

1. After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3]. (System address = 1, Indoor unit address = 1, Group address = 0 (standalone) are automatically set.)

2. Push

SET, CL

setting mode, and proceed to [3]. (The unit No. “

b) Group operation (including twin system)

Turn on the indoor unit(s) with its P.C. board replaced to the P.C. board for indoor unit servicing, according to either methods 1 or 2 shown below.

1. Turn on only the indoor unit with its P.C. board replaced. (Be sure to confirm the remote controller is surely connected. If not, the operation [3] cannot be performed.)

Perform either methods 1 or 2 described in item a) above.

2. Turn on the multiple indoor units including the indoor unit with its P.C. board replaced.

• Twin 1 system only

• All group connections

After completion of the auto-address setting mode (required time: approx. 5 min.), proceed to [3]. * The header unit of the group may be changed by performing the auto-address setting.

Also, the system address/Indoor unit address of the indoor unit with its P.C. board replaced may be assigned to the addresses (not used) other than those of the indoor units without its P.C. board replaced. It is recommended to keep the information in advance, which cooling system the indoor unit belongs to or whether the indoor unit works as the header unit or the follower unit in the group control operation.

and

TEST

buttons simultaneously for more than 4 seconds to interrupt the auto-address

” is displayed.)

– 100 –

Toshiba RAV-SP1104AT-E, RAV-SP1404AT-E, RAV-SP1104ATZG-E, RAV-SM804UT-E, RAV-SM1104UT-E User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual