MITSUBISHI PUHZ-RP200YKA, PUHZ-RP250YKA Schematic

Page 1

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE MANUAL

R410A

Outdoor unit [model name]

PUHZ-RP35VHA4 PUHZ-RP50VHA4 PUHZ-RP60VHA4 PUHZ-RP71VHA4 PUHZ-RP100VKA PUHZ-RP125VKA PUHZ-RP140VKA PUHZ-RP100YKA PUHZ-RP125YKA PUHZ-RP140YKA PUHZ-RP200YKA

[Service Ref.]

PUHZ-RP35VHA4 PUHZ-RP50VHA4 PUHZ-RP60VHA4 PUHZ-RP71VHA4 PUHZ-RP100VKA PUHZ-RP125VKA PUHZ-RP140VKA PUHZ-RP100YKA PUHZ-RP125YKA PUHZ-RP140YKA PUHZ-RP200YKA

July 2011

No.OCH451

REVISED EDITION-B

Revision:

• The compressors for PUHZRP200YKA (R1) and PUHZRP250YKA are changed. The previous types of compressors are also available for servicing the outdoor units equipped with the updated types of compressors.

• Some descriptions have been

modified.

• Please void OCH451 REVISED EDITION-A.

Note:

• This manual describes only service data of the outdoor units. RoHS compliant products have <G>

• mark on the spec name plate.

PUHZ-RP250YKA

PUHZ-RP200YKAR1 PUHZ-RP250YKA

PUHZ-RP60VHA4 PUHZ-RP71VHA4

CONTENTS

1 TECHNICAL CHANGE ····································2 2 REFERENCE MANUAL ··································2 3 SAFETY PRECAUTION ··································2 4 FEATURES ······················································6 5 SPECIFICATIONS ···········································7 6 DATA ······························································10 7 OUTLINES AND DIMENSIONS ····················16 8 WIRING DIAGRAM ·······································20 9 WIRING SPECIFICATIONS ···························26

REFRIGERANT SYSTEM DIAGRAM 11 TROUBLESHOOTING ···································35 12 FUNCTION SETTING ····································94 13

MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER 14 EASY MAINTENANCE FUNCTION ·············111 15 DISASSEMBLY PROCEDURE ···················· 116

··············31

···101

PARTS CATALOG (OCB451)

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Preparation before the repair service.

• Prepare the proper tools.

• Prepare the proper protectors.

• Provide adequate ventilation.

• After stopping the operation of the air conditioner, turn off the power-supply beaker.

• Discharge the condenser before the work involving the electric parts.

Precautions during the repair service.

• Do not perform the work involving the electric parts with wet hands.

• Do not pour water into the electric parts.

• Do not touch the refrigerant.

• Do not touch the hot or cold areas in the refrigerating cycle.

• When the repair or the inspection of the circuit needs to be done without turning off the power, exercise great caution not to touch the live parts.

OCH451B

PUHZ-RP200YKA PUHZ-RP200YKAR1

• Power board (P.B.) has been changed.

• Controller board (C.B.) has been changed. (S/W version up)

TECHNICAL CHANGE

REFERENCE MANUAL

2-1. INDOOR UNIT SERVICE MANUAL

Model name Service Ref.

PLA-RP35/50/60/71/100/125BA PLA-RP71/125/140BA2

PLA-RP100BA3 PLA-RP100BA3

PCA-RP50/60/71/100/125/140KA PCA-RP50/60/71/100/125/140KA

PCA-RP71/125HA PCA-RP71/125HA#1 OC329

PKA-RP35/50HAL PKA-RP35/50HAL

PKA-RP60/71/100KAL PKA-RP60/71/100KAL

PSA-RP71/100/125/140GA PSA-RP71/100/125/140GA#1 OC332

PEAD-RP35/50/60/71/100/125/140JA(L) PEAD-RP35/50/60/71/100/125/140JA(L)(R1).UK

PEA-RP200/250/400/500GA

PLA-RP35/50/60/71/100/125BA#2.UK PLA-RP71/125/140BA2.UK

PEA-RP200/250/400/500GA.TH-AF PEA-RP200/250GA.TH-AFMF

Service Manual No.

OCH412 OCB412

OCH459 OCB459

OCH454 OCB454

OCH453 OCB453

OCH452 OCB452

HWE08130 BWE08240 BWE09220

HWE0708A

SAFETY PRECAUTION

3-1. ALWAYS OBSERVE FOR SAFETY

Before obtaining access to terminal, all supply circuits must be disconnected.

3-2. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A

2 3

Page 3

Gravimeter

Unit

Use new refrigerant pipes.

Make sure that the inside and outside of refrigerant piping is clean and it has no contaminants such as sulfur, oxides, dirt, shaving particles, etc, which are hazard to refrigerant cycle. In addition, use pipes with specified thickness.

Store the piping to be used indoors during installation and both ends of the piping sealed until just before brazing. (Leave elbow joints, etc. in their packaging.)

The refrigerant oil applied to flare and flange connections must be ester oil, ether oil or alkylbenzene oil in a small amount.

In case of using the existing pipes for R22, be careful with the followings.

· Be sure to clean the pipes and make sure that the insides

of the pipes are clean.

· Change flare nut to the one provided with this product.

Use a newly flared pipe.

· Avoid using thin pipes.

Charge refrigerant from liquid phase of gas cylinder.

If the refrigerant is charged from gas phase, composition change may occur in refrigerant and the efficiency will be lowered.

Do not use refrigerant other than R410A.

If other refrigerant (R22 etc.) is used, chlorine in refrigerant can cause deterioration of refrigerant oil etc.

Use a vacuum pump with a reverse flow check valve.

Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc.

Use the following tools specifically designed for use with R410A refrigerant.

The following tools are necessary to use R410A refrigerant.

Handle tools with care.

If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of compressor.

Do not use a charging cylinder.

If a charging cylinder is used, the composition of refrigerant will change and the efficiency will be lowered.

Flare tool

Electronic refrigerant charging scale

Vacuum pump adaptor

Size adjustment gauge

Gauge manifold

Torque wrench

Gas leak detector

Charge hose

Tools for R410A

Contamination inside refrigerant piping can cause deterioration of refrigerant oil etc.

If dirt, dust or moisture enters into refrigerant cycle, that can cause deterioration of refrigerant oil or malfunction of compressor.

If large amount of mineral oil enters, that can cause deterioration of refrigerant oil etc.

Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with a flame, poisonous gases will be released.

OCH451B

[1] Cautions for service

(1) Perform service after recovering the refrigerant left in unit completely. (2) Do not release refrigerant in the air. (3) After completing service, charge the cycle with specified amount of refrigerant. (4) When performing service, install a filter drier simultaneously.

Be sure to use a filter drier for new refrigerant.

[2] Additional refrigerant charge

When charging directly from cylinder

· Check that cylinder for R410A on the market is syphon type.

· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)

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[3] Service tools

OCH451B

Use the below service tools as exclusive tools for R410A refrigerant.

No. Tool name Specifications 1 Gauge manifold · Only for R410A

· Use the existing fitting

specifications

. (UNF1/2)

· Use high-tension side pressure of 5.3MPa·G or over. 2 Charge hose · Only for R410A

· Use pressure performance of 5.09MPa·G or over. 3 Electronic scale 4 Gas leak detector · Use the detector for R134a, R407C or R410A. 5 Adaptor for reverse flow check · Attach on vacuum pump. 6 Refrigerant charge base 7 Refrigerant cylinder · Only for R410A · Top of cylinder (Pink)

· Cylinder with syphon 8 Refrigerant recovery equipment

[4] Refrigerant leakage detection function

This air conditioner (outdoor unit PUHZ-RP35~140, except PUHZ-RP200/250) can detect refrigerant leakage which may happen during a long period of use. In order to enable the leakage detection, settings are required to let the unit memorize the initial conditions (initial learning). Refer to 14-3. INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION.

3-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES

(1) Flowchart

• Refer to the owchart below to determine if the existing pipes can be used and if it is necessary to use a lter dryer.

• If the diameter of the existing pipes is different from the specied diameter, refer to technological data materials to conrm if

the pipes can be used.

Measure the existing pipe thickness and

The existing pipe thickness meets specications and the pipes are not damaged.

▼

Check if the existing air conditioner can operate.

▼

After operating the cooling system for about 30 minutes, do a pump down work.

▼

Disconnect the existing air conditioner from the pipes.

▼

Attach the new air conditioner

▼

Perform the airtight test, vacuum air purging, additional refrigerant charging (if necessary), and gas leak check.

check for damage.

* If the existing air conditioner cannot operate, use a refrigerant recovery device to collect the refrigerant.

* In case existing pipes were used for gas or oil heat pump systems, be sure to clean the pipes for RP100-250 models. Use new pipes for RP35-71 models.

The existing pipe thickness does not meet

specications or the pipes are damaged.

▼

Test run

▼

The existing pipes cannot be reused. Use new pipes.

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(2) Cautions for refrigerant piping work

1/4 3/8 1/2 5/8 3/4

6.35

9.52

12.70

15.88

19.05

0.8

1.0

—

0.8

1.0

Nominal

dimensions(inch)

Diagram below: Piping diameter and thickness

Outside

diameter

(mm)

Thickness

(mm)

R410A R22

1/4 3/8 1/2 5/8 3/4

6.35

9.52

12.70

15.88

19.05

9.1

13.2

16.6

19.7

—

9.0

13.0

16.2

19.4

23.3

Nominal

dimensions(inch)

Flare cutting dimensions

Outside

diameter

Dimension A

( )

-0.4

(mm)

R410A R22

1/4 3/8 1/2 5/8 3/4

6.35

9.52

12.70

15.88

19.05

17.0

22.0

26.0

29.0

—

17.0

22.0

24.0

27.0

36.0

Nominal

dimensions(inch)

Flare nut dimensions

Outside

diameter

Dimension B

(mm)

R410A

+36.0mm for

indoor unit of RP100, 125 and 140

R22

Gauge manifold Charge hose Gas leak detector

Refrigerant recovery equipment Refrigerant cylinder Applied oil

Safety charger

Charge valve Vacuum pump

Flare tool

Bender Pipe cutter Welder and nitrogen gas cylinder Refrigerant charging scale

Vacuum gauge or thermistor vacuum gauge and vacuum valve Charging cylinder

Air purge, refrigerant charge and operation check Gas leak check Refrigerant recovery Refrigerant charge Apply to flared section

Prevent compressor malfunction when charging refrigerant by

spraying liquid refrigerant Prevent gas from blowing out

when detaching charge hose Vacuum drying and air purge

Flaring work of piping

Bend the pipes Cut the pipes Weld the pipes Refrigerant charge Check the degree of vacuum. (Vacuum

valve prevents back flow of oil and refrigerant to thermistor vacuum gauge) Refrigerant charge

Tool exclusive for R410A Tool exclusive for R410A Tool for HFC refrigerant Tool exclusive for R410A Tool exclusive for R410A Ester oil and alkylbenzene oil (minimum amount) Tool exclusive for R410A

Tool exclusive for R410A Tools for other refrigerants can

be used if equipped with adopter for reverse flow check Tools for other refrigerants

can be used by adjusting flaring dimension Tools for other refrigerants can be used Tools for other refrigerants can be used Tools for other refrigerants can be used Tools for other refrigerants can be used Tools for other refrigerants can be used

Tool exclusive for R410A

Tools and materials Use R410A tools Can R22 tools be used?

(Usable if equipped

with adopter for rever se flow)

(Usable by adjusting flaring dimension)

Can R407C tools be used?

Ester oil: Alkylbenzene oil: minimum amount

(Usable if equipped

with adopter for rever se flow)

(Usable by adjusting

flaring dimension)

: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.) : Tools for other refrigerants can be used under certain conditions. : Tools for other refrigerants can be used.

OCH451B

New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure of R410A is 1.6 times higher than that of R22, their sizes of flared sections and flare nuts are different.

1 Thickness of pipes

Because the working pressure of R410A is higher compared to R22, be sure to use refrigerant piping with thickness shown below. (Never use pipes of 0.7 mm or below.)

2 Dimensions of flare cutting and flare nut

The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that, R410A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrigerants. Therefore, to enhance airtightness and intensity, flare cutting dimension of copper pipe for R410A has been specified separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R410A also has partly been changed to increase intensity as shown below. Set copper pipe correctly referring to copper pipe flaring dimensions for R410A below. For 1/2 and 5/8 inch, the dimension B changes. Use torque wrench corresponding to each dimension.

Dimension A

3 Tools for R410A (The following table shows whether conventional tools can be used or not.)

Dimension B

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4 FEATURES

OCH451B

PUHZ-RP35VHA4 PUHZ-RP50VHA4

PUHZ-RP60VAH4 PUHZ-RP71VHA4

PUHZ-RP100VKA PUHZ-RP125VKA PUHZ-RP140VKA PUHZ-RP100YKA PUHZ-RP125YKA PUHZ-RP140YKA PUHZ-RP200YKA PUHZ-RP200YKAR1 PUHZ-RP250YKA

CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. Max. 30m (PUHZ-RP35-250)

The refrigerant circuit with LEV (Linear Expansion Valve) and power receiver always control the optimal refrigerant level regardless of the length (30 m max. and 5 m min.) of piping. The additional refrigerant charging work during installation often causes problems. It is completely eliminated by chargeless system. This unique system improves the quality and reliability of the work done. It also helps to speed up the installation time.

REFRIGERANT LEAKAGE DETECTION FUNCTION (except for RP200/250)

PUHZ-RP35-140 can detect refrigerant leakage which may happen during a long period of use.

Page 7

5 SPECIFICATIONS

/min(CFM

)

dB mm(in.) mm(in.) mm(in.)

kg(lbs) kg(lbs)

L mm(in.) mm(in.)

Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices

Crankcase heater Heat exchanger Fan Fan(drive) % No. Fan motor output Airflow Defrost method Noise level

Dimensions

Weight Refrigerant Charge Oil (Model) Pipe size O.D.

Connection method Between the indoor &

outdoor unit

Mode

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

Service Ref.

PUHZ-RP35VHA4 PUHZ-RP50VHA4

Cooling

0.9

Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

SNB130FGCH

Inverter

—

Plate fin coil

Propeller fan % 1

0.040

35(1,240)

Reverse cycle

44 46

800(31-1/2)

300+23(11-13/16+7/8)

600(23-5/8)

42(93) R410A

2.5(5.5)

0.45(NEO22)

6.35(1/4)

12.7(1/2) Flared Flared

Max. 30m Max. 50m

Heating Cooling

1.1

Heating

HP switch

Comp.shell thermo

Discharge thermo

Single, 50Hz, 230V

OUTDOOR UNIT

REFRIGERANT PIPING

/min(CFM

)

dB mm(in.) mm(in.) mm(in.)

kg(lbs) kg(lbs)

L mm(in.) mm(in.)

Power supply (phase, cycle, voltage) Max. current

External finish Refrigerant control Compressor Model Motor output Starter type Protection devices

Crankcase heater Heat exchanger Fan Fan(drive) % No. Fan motor output Airflow Defrost method Noise level

Dimensions

Weight Refrigerant Charge Oil (Model) Pipe size O.D.

Connection method Between the indoor &

outdoor unit

Mode

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

Service Ref.

PUHZ-RP71VHA4

PUHZ-RP60VHA4

Cooling

SNB172FDHM1

Propeller fan % 1

0.086

55(1,940)

47 48

943(37-1/8)

67(148)

3.5(7.7)

0.70(FV50S)

Max. 50m

Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

Inverter

—

Plate fin coil

Reverse cycle

950(37-3/8)

330+30(13+1-3/16)

R410A

9.52(3/8)

15.88(5/8) Flared Flared

Max. 30m

HeatingCooling Heating

HP switch

Comp.shell thermo

Discharge thermo

Single, 50Hz, 230V

OUTDOOR UNIT

REFRIGERANT PIPING

1.61.4

OCH451B

Page 8

/min(CFM

)

dB mm(in.) mm(in.) mm(in.)

kg(lbs)

L mm(in.) mm(in.)

Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model

Motor output Starter type Protection devices

Crankcase heater Heat exchanger Fan Fan(drive)% No. Fan motor output Airflow Defrost method Noise level

Dimensions

Weight Refrigerant

Charge

Oil (Model) Pipe size O.D.

Connection method Between the indoor &

outdoor unit

Mode

Cooling Heating

D H

Liquid

Gas

Indoor side Outdoor side Height difference Piping length

Service Ref.

PUHZ-RP140VKAPUHZ-RP125VKA

PUHZ-RP100VKA

Cooling

49 51

Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

Inverter

—

Plate fin coil

Propeller fan % 2

0.060+0.060

Reverse cycle

1,050(41-5/16)

330+30(13+1-3/16)

1,338(52-11/16)

R410A

5.0(11.0)

1.40(FV50S)

9.52(3/8)

15.88(5/8) Flared Flared

Max. 30m Max. 75m

HeatingCooling Heating Cooling

2.9

Heating

HP switch

Comp.shell thermo

Discharge thermo

Single 50Hz, 230V

OUTDOOR UNIT

REFRIGERANT PIPING

2.4

1.9

26.5

ANB33FDUMT ANB42FDWMT

50 52

116(256) 119(262)

110(3,880) 120(4,230)

/min(CFM

)

dB mm(in.) mm(in.) mm(in.)

kg(lbs)

L mm(in.) mm(in.)

Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model

Motor output Starter type Protection devices

Crankcase heater Heat exchanger Fan Fan(drive) % No. Fan motor output Airflow Defrost method Noise level

Dimensions

Weight Refrigerant

Charge

Oil (Model) Pipe size O.D.

Connection method Between the indoor &

outdoor unit

Mode

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

Service Ref.

PUHZ-RP140YKAPUHZ-RP125YKA

PUHZ-RP100YKA

Cooling

49 51

9.5

Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

Inverter

—

Plate fin coil

Propeller fan % 2

0.060+0.060

Reverse cycle

1,050(41-5/16)

330+30(13+1-3/16)

1,338(52-11/16)

R410A

5.0(11.0)

1.40(FV50S)

9.52(3/8)

15.88(5/8) Flared Flared

Max. 30m Max. 75m

HeatingCooling Heating Cooling

2.9

Heating

HP switch

Comp.shell thermo

Discharge thermo

3phase, 50Hz, 400V

OUTDOOR UNIT

REFRIGERANT PIPING

2.41.9

110(3,880) 120(4,230)

8 13

ANB33FDVMT

50 52

ANB42FDXMT

124(273) 126(278)

132(291)

OCH451B

Page 9

/min(CFM

)

dB mm(in.) mm(in.) mm(in.)

kg(lbs) kg(lbs)

L mm(in.) mm(in.)

Power supply (phase, cycle, voltage) Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices

Crankcase heater Heat exchanger Fan Fan(drive)% No. Fan motor output Airflow Defrost method Noise level

Dimensions

Weight Refrigerant Charge Oil (Model) Pipe size O.D.

Connection method Between the indoor &

outdoor unit

Mode

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

Service Ref.

PUHZ-RP250YKA

PUHZ-RP200YKA

PUHZ-RP200YKAR1

Cooling

Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

Inverter

—

Plate fin coil

Propeller fan % 2

0.150 + 0.150 140(4,940)

Reverse cycle

1,050(41-5/16)

330 + 30(13+1-3/16)

1,338(52-11/16)

R410A

Flared

Flared & Brazing

Max. 30m

Max. 120m

Heating Cooling

ANB66FFRMT / ANB66FFZMT

5.5

Heating

HP switch

Comp.shell thermo

Discharge thermo

3 phase 50Hz, 400V

OUTDOOR UNIT

REFRIGERANT PIPING

ANB52FFQMT / ANB52FFPMT

4.7

58 59

135(297)

7.1(15.7)

1.70(FV50S) / 2.30(FV50S)

9.52(3/8)

25.4(1)

58 59

141(311)

7.7(17.0)

1.70(FV50S) / 2.30(FV50S)

12.7(1/2)

25.4(1)

The compressors are changed in model name

OCH451B

from

ANB52FFQMT and ANB66FFRMT to ANB52FFPMT and ANB66FFZMT

respectively for the change of oil amount. The new types of compressors are equipped in the outdoor units produced from July

2011. Both old and new types of the compressors can substitute for each other.

Page 10

6 DATA

U-V U-W W-V

Service Ref.

Compressor model

Winding

Resistance

(  )

ANB33FDUMT

(at 20°C)

0.466

SNB130FGCH

0.64

PUHZ-RP100/125VKA

ANB33FDVMT

1.20

ANB42FDXMTANB42FDWMT

1.20

0.302

PUHZ-RP100/125YKA

PUHZ-RP35/50VHA4

SNB172FDHM1

1.34

PUHZ-RP60/71VHA4

PUHZ-RP140YKA

PUHZ-RP140VKA

Service Ref.

Compressor model

ANB52FFQMT

ANB52FFPMT

(at 20°C)

PUHZ-RP200YKA(R1)

ANB66FFRMT ANB66FFZMT

U-V U-W W-V

Winding

Resistance

(  )

0.30

0.37

PUHZ-RP250YKA

Amount of additional refrigerant charge (kg)

30 m and less 31-40 m and less 41-50 m and less 51-60 m and less 61-70 m and less 71-120 m and less

0.9 kg 1.8 kg 2.7 kg 3.6 kg

1.2 kg 2.4 kg 3.6 kg 4.8 kg

Service Ref.

Permitted pipe length

PUHZ-RP200YKA PUHZ-RP200YKAR1

PUHZ-RP250YKA

120m or less

Initial charge

(kg)

7.1

7.7

No additional

charge necessary

The additional charge amount is obtained by the following formula.

Main piping: Liquid line size :9.52 overall length[m]

0.09

[kg/m]

Branch piping: Liquid line size :9.52 overall length [m] % 0.06 [kg/m]

Branch piping: Liquid line size :6.35 overall length[m] % 0.02 [kg/m]

3.6 (kg)

Amount of additional charge [kg]

Main piping: Liquid line size :12.7 over all length [m] % 0.11 [kg/m]

Additional charge amount for 70 m

RP200 3.6 kg RP250 4.8 kg

+ –

Calculate the additional charge amount based on the following procedure. If the calculation results in an amount that is smaller than the "Additional charge amount for 70m," perform the additional charge using the amount shown in "Additional charge amount for 70m."

OCH451B

6-1. REFILLING REFRIGERANT CHARGE (R410A : kg) PUHZ-RP35~140

Service Ref.

10m 20m 30m 40m 50m 60m 75m

Piping length (one way)

charged PUHZ-RP35VHA4 2.1 2.3 2.5 2.7 2.9 — — 2.5 PUHZ-RP50VHA4 2.1 2.3 2.5 2.7 2.9 — — 2.5 PUHZ-RP60VHA4 3.1 3.3 3.5 4.1 4.7 — — 3.5 PUHZ-RP71VHA4 3.1 3.3 3.5 4.1 4.7 — — 3.5 PUHZ-RP100VKA PUHZ-RP100YKA PUHZ-RP125VKA PUHZ-RP125YKA PUHZ-RP140VKA PUHZ-RP140YKA

4.6 4.8 5.0 5.6 6.2 6.8 7.5 5.0

Longer pipe than 30 m, additional charge is required.

6-2. ADJUSTING THE AMOUNT OF REFRIGERANT PUHZ-RP200/250

Initial

6-3. COMPRESSOR TECHNICAL DATA

The compressors are changed in model name respectively for the change of oil amount. The new types of compressors are equipped in the outdoor units produced from July

2011. Both old and new types of the compressors can substitute for each other.

from

ANB52FFQMT and ANB66FFRMT to ANB52FFPMT and ANB66FFZMT

10 11

Page 11

6-4. NOISE CRITERION CURVES

1.5m

MICROPHONE

UNIT

GROUND

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUHZ-RP35/50VHA4

COOLING

MODE

HEATING

SPL(dB)

LINE

63 125 250 500 1000 2000 4000 8000

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

PUHZ-RP60VHA4 PUHZ-RP71VHA4

COOLING

MODE

HEATING

SPL(dB)

LINE

63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUHZ-RP100VKA PUHZ-RP100YKA

COOLING

MODE

HEATING

SPL(dB)

LINE

63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUHZ-RP125VKA PUHZ-RP125YKA

COOLING

MODE

HEATING

SPL(dB)

LINE

OCH451B

Page 12

63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUHZ-RP140VKA PUHZ-RP140YKA

COOLING

MODE

HEATING

SPL(dB)

LINE

63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUHZ-RP200YKA PUHZ-RP200YKAR1

COOLING

MODE

HEATING

SPL(dB)

LINE

63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUHZ-RP250YKA

COOLING

MODE

HEATING

SPL(dB)

LINE

OCH451B

Page 13

TotalElectrical circuitRefrigerant circuitIndoor side

Outdoor

side

Representative matching

SHF

Mode

Capacity Input

PLA-RP71BA2

Cooling

7,100

1.90

Heating

8,000

1.90

8.20

2.73

0.95 69 45 12

5 27 19

14.5 35 24

0.73

0.21

8.25

2.65

0.71 72 43

5 20 15

38.8 7 6

— —

1 , 50

230

PUHZ-RP71VHA4

1 , 50

230

Phase , Hz Voltage Current

Outdoor unit

Phase , Hz Voltage Current Discharge pressure Suction pressure Discharge temperature Condensing temperature Suction temperature Ref. pipe length

Intake air temperature

Discharge air temperature

Intake air temperature

V A

A MPa MPa

°C °C °C

m °C °C °C °C °C

Indoor unit

D.B.

W.B.

D.B. D.B.

W.B.

PLA-RP35BA PLA-RP50BA PLA-RP60BA

Cooling

3,600

1.07

Heating

4,100

1.12

Cooling

5,000

1.55

Heating

6,000

1.62

Cooling

6,000

1.60

Heating

7,000

1.82

4.66

2.70

1.01 70 46 15

5 27 19

15.8 35 24

0.84

0.28

4.93

2.69

0.74 71 41

5 20 15

34.6 7 6

— —

6.72

2.91

0.99 73 49 11

5 27 19

15.3 35 24

0.81

0.24

7.08

2.76

0.67 77 44

-1 5

20 15

37.8 7 6

— —

6.95

2.64

0.96 67 44 11

5 27 19

14.2 35 24

0.76

0.21

7.98

2.90

0.74 80 46

5 20 15

39.2 7 6

— —

1 , 50

230

PUHZ-RP35VHA4

1 , 50

230

1 , 50

230

PUHZ-RP50VHA4

1 , 50

230

1 , 50

230

PUHZ-RP60VHA4

1 , 50

230

0.22 0.14 0.36 0.29 0.36 0.29 0.51 0.43

6-5. STANDARD OPERATION DATA

OCH451B

The unit of pressure has been changed to MPa based on international SI system. The conversion factor is : 1(MPa)=10.2(kgf/cm²)

Page 14

TotalElectrical circuitRefrigerant circuitIndoor side

Outdoor

side

Representative matching

SHF

Mode

Capacity Input

PLA-RP100BA3

PLA-RP125BA2

PLA-RP140BA2

PLA-RP100BA3 PLA-RP125BA2 PLA-RP140BA2

Cooling

10,000

2.39

Heating

11,200

2.43

Cooling

12,500

3.67

Heating

14,000

3.50

Cooling

14,000

4.36

Heating

16,000

4.32

10.4/3.51

2.61

0.99 67 44 15

5 27 19

14.5 35 24

0.74

0.21

10.26/3.59

2.39

0.72 66 38

5 20 15

38.5 7 6

— —

15.73/5.51

2.75

0.85 72 46

5 27 19

12.5 35 24

0.71

0.18

15.20/5.26

2.81

0.69 81 46

5 20 15

42.3 7 6

— —

18.83/6.59

2.78

0.83 71 46

5 27 19

11.3 35 24

0.71

0.14

18.69/6.54

2.89

0.66 83 47

5 20 15

44.7 7 6

— —

1 , 50

230

1/3, 50

230/400

1 , 50

230

1/3, 50

230/400

1 , 50

230

1/3, 50

230/400

Phase , Hz Voltage Current

Outdoor unit

Phase , Hz Voltage Current Discharge pressure Suction pressure Discharge temperature Condensing temperature Suction temperature Ref. pipe length

Intake air temperature

Discharge air temperature

Intake air temperature

V A

A MPa MPa

°C °C °C

m °C °C °C °C °C

Indoor unit

D.B.

W.B.

D.B. D.B.

W.B.

PUHZ-RP100VKA/

PUHZ-RP100YKA

PUHZ-RP125VKA/

PUHZ-RP125YKA

PUHZ-RP140VKA/

PUHZ-RP140YKA

1.00 0.94 1.07 1.00 1.07 1.00

OCH451B

The unit of pressure has been changed to MPa based on international SI system. The conversion factor is : 1(MPa)=10.2(kgf/cm²)

Page 15

Electrical circuitRefrigerant circuitIndoor side

Outdoor

side

Representative matching

SHF

Mode

Capacity Input

Total

Phase , Hz Voltage Current

Outdoor unit

Phase , Hz Voltage Current Discharge pressure Suction pressure Discharge temperature Condensing temperature Suction temperature Ref. pipe length

Intake air temperature

Discharge air temperature

Intake air temperature

V A

A Mpa Mpa

˚C

Indoor unit

D.B.

W.B.

D.B. D.B.

W.B.

PUHZ-RP250YKA

PUHZ-RP200YKA

PUHZ-RP200YKAR1

PLA-RP125BA2 ×2PLA-RP100BA3 ×2

PLA-RP125BA2PLA-RP100BA3

3, 50

1, 50

230

400

HeatingCooling

11.26

2.67

0.61 77 44

7.5 20 15

41.5 7 6 – –

10.24

2.96

0.88 72 49 11

7.5 27 19

13.2 35 24

0.77

0.10

8.50

2.30

0.64 70 38

7.5 20 15

38.5 7 6 – –

8.19

2.72

0.95 72 46 16

7.5 27 19

14.4 35 24

0.79

0.13

1.00 × 2 0.94 × 2 1.07 x 2 1.00 × 2

19,000 22,400 22,000 27,000

5.50 5.70 6.83 7.48

OCH451B

The unit of pressure has been changed to MPa based on international SI system. The conversion factor is : 1(MPa)=10.2(kgf/cm²)

Page 16

7 OUTLINES AND DIMENSIONS

Service panel for charge plug

+ 1 In the place where short cycle tends to occur, cooling and heating capacity and power consumption might get lowered 10%. Air outlet guide (optional PAC-SG58SG) will help them improve.

+ 2 If air discharges to the wall, the surface might get stained.

Minimum installation space for outdoor unit

100 mm or more as long as no obstacle is placed on the rear and right-and-left sides of the unit.

2 sides should be open in the right, left and rear side.

+ 2

+ 1

100 mm or more

500 mm or more

Basically open

100 mm or more

Free space around the outdoor unit (basic example)

350 mm or more

+ 1

Air intake

Air discharge

Air intake

Connection for gas pipe

Service port

Connection for liquid pipe

Service panel

4-10 % 21 oval hole (M10 foundation bolt)

:33 drain hole

43.6

152

155

400

347.5

45.4

365

330

300

Handle for moving

600

300

150

287.5 Installation bolt pitch: 500

800

183

155

32.5

1. FOUNDATION BOLTS

2. PIPING-WIRING DIRECTION

Piping and wiring connection can be made from the rear direction only.

3. ATTACHING THE CONDUIT

In order to attach the conduit, it is necessary to fix the metal plate with 2 screws to the back panel. Procure the metal plate and make screw holes locally. It is recommended to use the metal plate shown below. Align the metal plate to the marks on the unit and attach it.

Please secure the unit firmly with 4 foundation (M10) bolts. (Bolts, washer and nut must be purchased locally.)

18 or below

+ Conduit hole

+ The position and the size of

conduit hole depend on the conduit to be used.

Holes for metal plate fixing screw + The size of hole depends on the screw to be used.

FOUNDATION

PUHZ-RP35/50VHA2

(1)

PUHZ-RP35/50VHA3

Unit : mm

OCH451B

PUHZ-RP35VHA4 PUHZ-RP50VHA4

Unit : mm

16 17

Page 17

PUHZ-RP60VHA4

Air Intake

Rear Air Intake

Handle for moving

322

950

473

943

*1 447 *1 431

673

Handle for moving

Service panel

Earth terminal

Left···Power supply wiring

Right···Indoor/Outdoor wiring

Terminal Connections

Rear piping cover

Front piping cover

Side Air Intake

Handle for moving

28 370 19

417

57 41

600 175175

330

Rear Air Intake

Air Discharge

Side Air Intake

Installation Feet

2-U Shaped notched holes

(Foundation Bolt M10)

2-12 % 36 oval holes

(Foundation Bolt M10)

220 145 145 14530

81 219

Bottom piping hole

(Knockout)

Drain hole

(5-:33)

Piping Knockout Hole Details

19 55

23 27 92

4075

73 63

Right piping hole

(Knockout)

Right trunking hole

(Knockout)

Power supply wiring hole

(2-:27Knockout)

27 55

7323 63

Front piping hole

(Knockout)

Front trunking hole

(Knockout)

Power supply wiring hole

(2-:27Knockout)

4045

27 55 23 73 63

Rear piping hole

(Knockout)

Rear trunking hole

(Knockout)

Power supply wiring hole

(2-:27Knockout)

Example of Notes

 Refrigerant GAS pipe connection (FLARE):15.88(5/8 inch)

 Refrigerant LIQUID pipe connection (FLARE):9.52(3/8 inch)

*1...Indication of STOP VALVE connection location.

Over

Less than

Piping and wiring connections

can be made from 4 directions:

front, right, rear and below.

4 PIPING-WIRING DIRECTIONS

3 FOUNDATION BOLTS2 SERVICE SPACE

1 FREE SPACE (Around the unit)

The diagram below shows a

basic example.

Explanation of particular details is

given in the installation manuals etc.

Over10

500

Over100

Dimensions of space needed

for service access are

shown in the below diagram.

Service space

Please secure the unit firmly

with 4 foundation (M10) bolts.

(Bolts and washers must be

purchased locally.)

FOUNDATION

over 100mm

over 500mm

over 10mm

FREE

over 10mm

OCH451B

PUHZ-RP71VHA4

Unit : mm

Page 18

PUHZ-RP100VKA

FOUNDATION

Service space

150

500

The diagram below shows a

basic example.

Explanation of particular details are

given in the installation manuals etc.

Dimensions of space needed

for service access are

shown in the below diagram.

Please secure the unit firmly

with 4 foundation (M10) bolts.

(Bolts and washers must be

purchased locally.)

1 FREE SPACE (Around the unit)

2 SERVICE SPACE

3 FOUNDATION BOLTS

4 PIPING-WIRING DIRECTIONS

Piping and wiring connections

can be made from 4 directions:

FRONT,Right,Rear and Below.

Piping Knockout Hole Details

PUHZ-RP100~140VKA

PUHZ-RP100~140YKA

Model

919

1067

···Refrigerant GAS pipe connection (FLARE)ø15.88(5/8F)

···Refrigerant LIQUID pipe connection (FLARE)ø 9.52(3/8F)

*1···Indication of STOP VALVE connection location.

Less than

Over

Example of Notes

Side Air Intake

Rear Air Intake

Handle for moving

Power supply wiring hole

(ø27Knockout)

Front piping hole

(Knockout)

Front trunking hole

(Knockout)

Power supply wiring hole

(ø40Knockout)

60 55

ø92

Power supply wiring hole

(ø27Knockout)

Right piping hole

(Knockout)

Right trunking hole

(Knockout)

Power supply wiring hole

(ø40Knockout)

75 50

29 92

ø92

Power supply wiring hole

(ø27Knockout)

Rear piping hole

(Knockout)

Rear trunking hole

(Knockout)

Power supply wiring hole

(ø40Knockout)

6055

6373

ø92

Over 10mm

FREE

Over 150mm

Over 1000mm

Handle for moving

Earth terminal

Service panel

Handle for moving

Terminal connection

Left···Power supply wiring

Right···Indoor/Outdoor wiring

632

*1 450

369

362

1338

1050

*1 442

Air intake

Front piping cover

Rear piping cover

Drain hole

(5-ø33)

Bottom piping hole

(Knockout)

154136

110 160 160 160

Rear Air Intake

Air Discharge

Side Air Intake

Installation Feet

2-U Shaped notched holes

(Foundation Bolt M10)

2-12×36 Oval holes

(Foundation Bolt M10)

370

225

330

600

417

53560

Unit : mm

OCH451B

PUHZ-RP125VKA PUHZ-RP140VKA PUHZ-RP100YKA PUHZ-RP125YKA PUHZ-RP140YKA

Unit : mm

Page 19

PUHZ-RP200YKA

FOUNDATION

Service space

150

500

The diagram below shows a

basic example.

Explanation of particular details are

given in the installation manuals etc.

Dimensions of space needed

for service access are

shown in the below diagram.

Please secure the unit firmly

with 4 foundation (M10) bolts.

(Bolts and washers must be

purchased locally.)

1 FREE SPACE (Around the unit)

2 SERVICE SPACE

3 FOUNDATION BOLTS

4 PIPING-WIRING DIRECTIONS

Piping and wiring connections

can be made from 4 directions:

FRONT,Right,Rear and Below.

Less than

Over

Over 10mm

FREE

Over 150mm

Over 1000mm

PUHZ-RP200YKA

PUHZ-RP250YKA

Model

424

450

Aconnection

ø9.52(3/8F)

ø12.7(1/2F)

···Refrigerant GAS pipe connection (attached JOINT)ø25.4(Brazing locally)

···Refrigerant LIQUID pipe connection (FLARE)

*1···Indication of STOP VALVE connection location.

*2···(FLARE)ø 19.05(3/4F)

Example of Notes

Piping Knockout Hole Details

Power supply wiring hole

(ø27Knockout)

Front piping hole

(Knockout)

Front trunking hole

(Knockout)

Power supply wiring hole

(ø40Knockout)

60 55

ø92

Power supply wiring hole

(ø27Knockout)

Right piping hole

(Knockout)

Right trunking hole

(Knockout)

Power supply wiring hole

(ø40Knockout)

75 50

29 92

ø92

Power supply wiring hole

(ø27Knockout)

Rear piping hole

(Knockout)

Rear trunking hole

(Knockout)

Power supply wiring hole

(ø40Knockout)

6055

6373

ø92

Drain hole

(5-ø33)

Bottom piping hole

(Knockout)

154136

110 160 160 160

1050

Rear Air Intake

Air Discharge

Side Air Intake

Installation Feet

2-U Shaped notched holes

(Foundation Bolt M10)

2-12×36 Oval holes

(Foundation Bolt M10)

370

225

330

600

417

53560

Handle for

moving

Rear Air Intake

Side Air Intake

Handle for

moving

632

369

1338

Handle for moving

Earth terminal

362

Brazing

Service panel

Terminal connection

Left···Power supply wiring

Right···Indoor/Outdoor wiring

*1,*2 : 442

982

986

*1 A

342

Air intake

Front piping cover

Rear piping cover

OCH451B

PUHZ-RP200YKAR1 PUHZ-RP250YKA

Unit : mm

Page 20

8 WIRING DIAGRAM

1 2 3 4 5 6 7 8

OFF

35V

MODEL

SW6

*1MODEL SELECT

SW5-6 *2

OFF

50V

OFF

1 2 3 4 5 6

*2. SW5 -1 to 5 : Function Switch The black square (■) indicates a switch position.

P. B.

C. B.

CNF1

(WHT)

MF1

MS 3~

TRANS

CNDC

(PNK)

TH7/6 (RED

)

63H

(YLW

)

TH3

(WHT

)

TH4

(WHT

)

TH7 TH6 TH3 TH4

41 21

TH33

(YLW

)

TH33

1 3 2 1

t°t°t°t°t° t°

TH32

(BLK

)

TH32

63H

LEV-A (WHT)

LEV-A

LEV-B (RED)

LEV-B

M M

LED1

LED2

CNVMNT

(WHT)

CNDM

(WHT

)

CN51

(WHT

)

3 1

CNMNT

(WHT)

CNM

(WHT)

SW7

SW6SW1

SW9

CN31

*1*1

SW5SW8SW4 SWP

X51

CNS

(WHT)

CNAC (WHT)

(WHT)

21S4

(GRN)

X52

21S4

3 1

13 13

CN4

(WHT)

1 2

CN52C

(RED

)

221

CN2

(WHT)

CN5

(WHT)

3 1

LED2

SW1

SW11

SW12

LED3 LED4

TB7

LED1

LED5

2 1

CND

(WHT)

CN2M

(WHT)

M-NET ADAPTER

M-NET

A B S

When M-NET adapter is connected

WHT

U U

LO NO

N. F.

1 2

CN5

(RED)

CNAC1

(WHT)

CNAC2

(RED)

CN52C

(BLK)

BLK

52C

RED

POWER SUPPLY ~/N 230V 50Hz

INDOOR UNIT

TB1

L N S1 S2 S3

RED

BLU

BLK

YLW

GRN/YLW

ORN

BRN

CY2

CY1

CB1 CB2 CB3

TABU

TABV

TH8

IPM

TABW

TABR

TABS

CN3

(WHT)

CN2

(WHT)

CN4

(WHT)

CN5

(RED)

1 2

t°

WHT

RED

PFC

RED

WHT

RED

WHT

ACL

BLK

WHT

RED

UVW

TB1 MC MF1 21S4 63H TH3, TH33 TH4 TH6 TH7 TH8

LEV-A, LEV-B ACL

Terminal Block<Power Supply, Indoor/Outdoor

Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch

Thermistor<Outdoor Pipe>

Thermistor<Discharge

Thermistor<Outdoor 2-Phase Pipe

Thermistor<Outdoor

Thermistor<Heat Sink

TH32 Thermistor<Shell

Electronic Expansion Valve

Reactor

CY1,CY2

Reactor Power Circuit Board

Connection Terminal<U/V/W-Phase>

P.B.

TABU/V/W

Noise Filter Circuit Board Connection Terminal<L-Phase>

Connection Terminal<Ground>

N.F.

LI/LO

Connection Terminal<N-Phase>

NI/NO EI,E2,E3

Controller Circuit Board Switch<Forced Defrost, Defect History

Record Reset, Refrigerant Address> Switch<Test Operation> Switch<Function Switch>

Switch<Function Setup>

Switch<Pump Down>

SW1 SW4

SW5 SW7

Switch<Function Setup>

SW8

SWP CN51 CNM

CNVMNT

CNDM

LED1,LED2

LED <Operation Inspection Indicators>

Connector<A-Control Service Inspection Kit>

Connector <Connected to Optional M-NET Adapter Board> Connector < Connected for Option (Contact Input)>

C.B.

Converter

PFC

Power Module

IPM

Main Smoothing Capacitor

CB1~CB3

52C Relay

52C

SYMBOL NAME SYMBOL NAME SYMBOL NAME

Connection Terminal<L/N-Phase>

TABR/S

CNMNT

Connector <Connected to Optional M-NET Adapter Board>

Switch<Model Select>

SW6

Connector<Emergency Operation>

CN31

Switch

SW9

Fuse<T6.3AL250V>

F1~4

X51,X52

Relay

Connector<Connection for Option>

SYMBOL

M-NET ADAPTER

NAME TB7 CN5 CND CN2M SW1 SW11

Terminal Block<M-net connection> Connector<Transmission> Connector<Power Supply> Connector<M-NET communication> Switch<Status of communication> Switch<Address setting : 1s digit>

SYMBOL NAME SW12 LED1 LED2 LED3 LED4 LED5

Switch<Address setting : 10s digit> LED<Power Supply : DC5V> LED<Connection to Outdoor Unit> LED<Transmission : Sending> LED<Transmission : Receiving> LED<Power Supply : DC12V>

OCH451B

PUHZ-RP35VHA4 PUHZ-RP50VHA4

20 21

Page 21

PUHZ-RP60VHA4 PUHZ-RP71VHA4

1 2 3 4 5 6 7 8

MODEL

SW6

*1MODEL SELECT

SW5-6 *2

OFF

1 2 3 4 5 6

OFF

60V

1 2 3 4 5 6 7 8

*2. SW5 -1 to 5 : Function Switch

The black square (■) indicates a switch position.

OFF

1 2 3 4 5 6

OFF

71V

P. B.

C. B.

CNF1 (WHT)

MF1

TRANS

CNDC (PNK)

TH7/6 (RED)

63H

(YLW)

TH3

(WHT

)

TH4

(WHT

)

TH7 TH6 TH3 TH4

41 21

TH33

(YLW

)

TH33

t° t° t° t° t° t°

3 2 1

TH32

(BLK

)

TH32

63H

LEV-A (WHT)

LEV-A

LEV-B

(RED)

LEV-B

M M

LED1

LED2

CNVMNT

(WHT)

CNDM

(WHT)

CN51

(WHT)

3 1

CNMNT (WHT)

CNM

(WHT)

SW7

SW6SW1

SW9

CN31

*1*1

SW5SW8SW4 SWP

X51

CNS

(WHT)

CNAC

(WHT)

21S4

(GRN)

X52

21S4

3 1

13 13

CN4

(WHT)

1 2

CN52C

(RED)

221

CN2

(WHT)

CN5

(WHT

)

3 1

LED2

SW1

SW11

SW12

LED3 LED4

TB7

LED1

LED5

2 1

CND

(WHT)

CN2M

(WHT

)

M-NET ADAPTER

M-NET

A B S

When M-NET adapter is connected

WHT

LO NO

N. F.

1 2

CN5

(RED)

CNAC1

(WHT)

CNAC2

(RED)

CN52C

(BLK

)

52C

RED

POWER SUPPLY ~/N 230V 50Hz

INDOOR UNIT

TB1

L N S1 S2 S3

RED

BLU

BLK

YLW

GRN/YLW

ORN

BRN

CY2

CY1

CB1 CB2 CB3

TABU

TABV

TH8

IPM

TABW

TABR

TABS

CN3

(WHT)

CN2

(WHT)

CN4

(WHT)

CN5

(RED)

1 2

t°

WHT

RED

PFC

RED

WHT

RED

WHT

ACL

MS 3~

BLK

WHT

RED

UVW

TB1 MC MF1 21S4 63H TH3, TH33 TH4 TH6 TH7 TH8

LEV-A, LEV-B ACL

Terminal Block<Power Supply, Indoor/Outdoor> Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch

Thermistor<Outdoor Pipe>

Thermistor<Discharge> Thermistor<Outdoor 2-Phase Pipe> Thermistor<Outdoor> Thermistor<Heat Sink>

TH32 Thermistor<Shell>

Electronic Expansion Valve

Reactor

CY1,CY2

Reactor Power Circuit Board

Connection Terminal<U/V/W-Phase>

P.B.

TABU/V/W

Noise Filter Circuit Board Connection Terminal<L-Phase>

Connection Terminal<Ground>

N.F.

LI/LO

Connection Terminal<N-Phase>

NI/NO EI,E2,E3

Controller Circuit Board Switch<Forced Defrost, Defect History

Record Reset, Refrigerant Address> Switch<Test Operation> Switch<Function Switch>

Switch<Function Setup>

Switch<Pump Down>

SW1 SW4

SW5 SW7

Switch<Function Setup>

SW8

SWP CN51 CNM

CNVMNT

CNDM

LED1,LED2

LED <Operation Inspection Indicators>

Connector<A-Control Service Inspection Kit>

Connector <Connected to Optional M-NET Adapter Board> Connector < Connected for Option (Contact Input)>

C.B.

Main Smoothing Capacitor

CB1~CB3

52C Relay

52C

SYMBOL NAME SYMBOL NAME SYMBOL NAME

Connection Terminal<L/N-Phase>

TABR/S

CNMNT

Connector <Connected to Optional M-NET Adapter Board>

Switch<Model Select>

SW6

Connector<Emergency Operation>

CN31

Switch

SW9

X51,X52

Relay

Connector<Connection for Option>

SYMBOL

M-NET ADAPTER

NAME TB7 CN5 CND CN2M SW1 SW11

Terminal Block<M-net connection> Connector<Transmission> Connector<Power Supply> Connector<M-NET communication> Switch<Status of communication> Switch<Address setting : 1s digit>

SYMBOL NAME SW12 LED1 LED2 LED3 LED4 LED5

Switch<Address setting : 10s digit> LED<Power Supply : DC5V> LED<Connection to Outdoor Unit> LED<Transmission : Sending> LED<Transmission : Receiving> LED<Power Supply : DC12V>

Fuse<T6.3AL250V>

F1~4

Converter

PFC

Power Module

IPM

OCH451B

Page 22

PUHZ-RP100VKA PUHZ-RP125VKA PUHZ-RP140VKA

1 2 3 4 5 6 7 8

OFF

100V

MODEL

SW6

*1. MODEL SELECT

*2. SW5 -1 to 5 : Function Switch

The black square (■) indicates a switch position.

SW5-6 *2

OFF

125V

OFF

1 2 3 4 5 6

OFF

140V

SYMBOL

M-NET ADAPTER

NAME TB7 CN5 CND CN2M SW1 SW11 SW12 LED1 LED2 LED3 LED4 LED5

Terminal Block<M-net connection> Connector<Transmission> Connector<Power Supply> Connector<M-NET communication> Switch<Status of communication> Switch<Address setting : 1s digit> Switch<Address setting : 10s digit> LED<Power Supply : DC5V> LED<Connection to Outdoor Unit> LED<Transmission : Sending> LED<Transmission : Receiving> LED<Power Supply : DC12V>

CN5

(WHT)

3 1

LED2

SW1

SW11

SW12

LED3 LED4

TB7

LED1

LED5

CND

(WHT)

CN2M (WHT)

M-NET ADAPTER

M-NET

A B S

When M-NET adapter is connected

CNVMNT

(WHT)

CNDM

(WHT)

CN51

(WHT)

3 1

CNMNT

(WHT)

CNM

(WHT)

LEV-A

(WHT)

LEV-A

C. B.

LEV-B (RED)

LEV-B

TH7/6 (RED)

63H

(YLW)

TRANS

X51

TH3

(WHT)

CNDC

(PNK)

CNF1

(WHT)

CNF2 (WHT)

TH4

(WHT)

TH7 TH6 TH3 TH4

41 21

TH33

(YLW)

TH33

t° t° t° t° t° t°

1 2 1

SW7

SW6SW1

SW9

CN31

141

MF1

MF2

M M

CN2

(WHT)

CNS

(WHT)

CNAC (WHT)

CN4

(WHT)

21S4

(GRN)

LED1

LED2

X52

*1*1

SW5SW8SW4 SWP

21S4

3 1

TH32

(BLK)

TH32

13 13

CN52C (RED)

331

63H

LEV-C

(BLU)

LEV-C

RP140 only

DCL2

IGBT

MS 3~

CN2

(WHT)

CN4

(WHT)

P. B.

CNDC (PNK)

BLK

WHT

CY1 CY2

LINI

POWER SUPPLY ~/N 230V 50Hz

INDOOR UNIT

TB1

L N S1 S2 S3

RED

CNAC1 (WHT)

CNAC2

(RED)

CN52C

(RED)

52C

BLU

YLW

GRN/YLW

ORN

BRN

RED

WHT

RED

BLK

DCL1

DCL

TB1 MC MF1, MF2 21S4 63H TH3, TH33 TH4 TH6 TH7

DCL

Terminal Block<Power Supply, Indoor/Outdoor > Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch

Thermistor<Outdoor Pipe>

Thermistor<Discharge> Thermistor<Outdoor 2-Phase Pipe> Thermistor<Outdoor>

TH32 Thermistor<Shell>

Electronic Expansion Valve

Reactor

Main Smoothing Capacitor

CY1,CY2

Capacitor

Controller Circuit Board

C.B.

SYMBOL NAME SYMBOL NAME SYMBOL NAME

Switch<Function Setup>

Switch<Forced Defrost, Defect History Record Reset, Refrigerant Address> Switch<Test Operation> Switch<Function Switch> Switch<Model Select>

SW7

SW1 SW4

SW5 SW6

Switch<Function Setup>

SW8

Switch<Pump Down>

SWP

Connector<Emergency Operation>

CN31

LED1, LED2

F1~F4

LED<Operation Inspection Indicators>

CN51 CNM

CNMNT CNVMNT

CNDM

Connector<A-Control Service Inspection Kit> Connector <Connected to Optional M-NET Adapter Board> Connector <Connected to Optional M-NET Adapter Board> Connector < Connected for Option (Contact Input)>

Fuse<T6.3AL250V

X51,X52

Relay

Connector<Connection for Option>

LEV-A, LEV-B, LEV-C

Power Module

Connection Terminal Connection Terminal<Reactor>

Connection Terminal<Ground>

DCL1,DCL2 IGBT EI,E2,E3,E4

P.B.

Power Circuit Board Connection Terminal<U/V/W-Phase>

Connection Terminal

Connection Terminal<N-Phase>

Connection Terminal<L-Phase>

U/V/W

Switch

SW9

OCH451B

Page 23

PUHZ-RP100YKA PUHZ-RP125YKA PUHZ-RP140YKA

TB1

MC MF1, MF2 21S4 63H TH3, TH33 TH4 TH6 TH7

LEV-A,LEV-B,LEV-C ACL1~ACL4

Terminal Block<Power Supply >

TB7 Terminal Block<M-NET connection > CN5

Connector<Transmission>

CND

Connector<Power Supply>

CN2M

Connector<M-NET communication>

SW1

Switch<Status of communication>

SW11

Switch<Address setting: 1s digit>

SW12 Switch<Address setting. 10s digit > LED1

LED<Power Supply: DC5V>

LED2

LED<Connection to Outdoor Unit>

LED3

LED<Transmission: Sending>

LED4

LED<Transmission: Receiving>

LED5

LED<Power Supply: DC12V>

TB2 Terminal Block<Indoor/Outdoor >

Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch

Thermistor<Outdoor Pipe>

Thermistor<Discharge> Thermistor<Outdoor 2-Phase Pipe> Thermistor<Outdoor>

TH32 Thermistor<Shell>

Electronic Expansion Valve

Reactor

Rush Current Protect Resistor

X52A

52C Relay

CB1, CB2

Main Smoothing Capacitor

Capacitor Power Circuit Board

Connection Terminal<U/V/W-Phase>

P.B.

TB-U/V/W

Noise Filter Circuit Board Connection Terminal

<L1/L2/L3/N-Power Supply

N.F.

LI1/LI2/LI3/NI

Connection Terminal

<L1/L2/L3/N-Power Supply

LO1/LO2/LO3/NO

Controller Circuit Board

Connector<Emergency Operation>

Switch<Function Setup>

SW8

CN31

C.B.

Connection Terminal

N-IN

Connection Terminal

CK-OU

Connection Terminal<Ground>

GD1, GD3

Connection Terminal<L1-Power Supply>

L1-A1/IN

SYMBOL

M-NET ADAPTER

NAME SYMBOL NAME SYMBOL NAME

Connection Terminal

TB-P2

Connection Terminal

<L1/L2/L3-Power Supply

TB-L1/L2/L3

Switch

SW9

Switch<Pump Down>

SWP

Connection Terminal<L1-Power Supply>

L1-A2/OU

Connection Terminal<L2-Power Supply>

L2-A2/OU

Connection Terminal<L3-Power Supply>

L3-A2/OU

Converter Circuit Board

CONV.B.

Switch<Forced Defrost, Defect History Record Reset, Refrigerant Adress>

SW1

Switch<Model Select>

SW6

Switch<Function Setup>

SW7

Switch<Test Operation>

SW4

LED1,LED2

LED<Operatiion Inspection Indicators>

CNM CNMNT

CNVMNT

Connector<A-Control Service Inspection Kit> Connector <Connect to Optional M-NET Adapter Board> Connector <Connect to Optional M-NET Adapter Board>

CN3S

Connector< Connection for Option>

CNDM

Connector < Connection for Option

(Contact Input)

CN51

Connector< Connection for Option>

X51,X52

Relay

FUSE<T6.3AL250V>

F1~F4

Connection Terminal

TB-C1

Connection Terminal

TB-N1

Switch<Function Switch>

SW5

LEV-A (WHT)

LEV-B (RED)

CNVMNT

(WHT)

CN4

(WHT)

CNMNT

(WHT)

31 51

CN5

(WHT)

3 1

LED2

SW1

SW11

SW12

LED3 LED4

TB7

LED1

LED5

CND

(WHT)

CN2M

(WHT)

M-NET

When M-NET adapter is connected

2 1

1 2

3 4

CNS

(WHT)

21S4

(GRN)

MF1

TRANS

MF2

CNF1

(WHT)

CNF2

(WHT)

CNDC (PNK)

CN2

(WHT)

CNAC (WHT)

X51

X52

(WHT)

+ +

ACL1

ACL2

ACL3

ACL4

CN7

(WHT)

CN2

(WHT)

TB-P2

CB1 CB2 CK

TB-C1

L3-OU

L2-OU

L1-OU

L3-A2

L2-A2

L1-A2

L1-A1

L1-IN

N-IN

CK-OU

TB-N1

TB-W

BLK WHT

RED

BLK WHT RED

BLK

BLU

WHT

RED

BLK

WHT

BRN

BLU

GRN/YLW

WHT

RED

TB-V

TB-U

TB-L3 TB-L2 TB-L1

W V U

CN4

(WHT)

BLK

BLU

CNAC1

(WHT)

CN7

(WHT)

WHT

CN5

(RED)

CNCT (RED)

CNAC2

(RED)

CNL

(BLU)

CNDC (PNK)

P .B .

C .B .

N .F .

CONV.B.

LO1

GD1

GD3

LO2

LO3

LI1

LI2

LI3

TB1

TB2

POWER SUPPLY 3N~ 400V 50Hz

INDOOR UNIT

TH7/6 (RED)

63H

(YLW)

TH3 (WHT)

TH4

(WHT)

TH7 TH6 TH3 TH4

41 21

TH33

(YLW)

TH33

t° t° t° t° t° t°

1 2 1

TH32 (BLK)

TH32

63H

221

1 2 3 4 5 6 7 8

OFF

100Y

MODEL

SW6

*1. MODEL SELECT

*2. SW5 -1 to 5 : Function Switch

The black square (■) indicates a switch position.

SW5-6 *2

OFF

125Y

OFF

1 2 3 4 5 6

OFF

140Y

3 7

RED

WHT

BLK

RED

X52A

RED

3 1

3121

LEV-A LEV-B

M M

LED1

LED2

CNM

(WHT)

1 14

3 1 3 1

CNDM

(WHT)

CN3S

(WHT)

CN51

(WHT)

SW7

SW6SW1

SW9

CN31

*1*1

SW5SW8SW4 SWP

21S4

A B S

1331

L1 L2 L3

S1 S2 S3

YLW

ORN

BRN

M-NET ADAPTER

BLK

BLU

LEV-C

(BLU)

LEV-C

RP140 only

OCH451B

Page 24

PUHZ-RP200YKA PUHZ-RP250YKA

TH7/6 (RED)

TH3

(WHT)

TH4

(WHT

)

TH7TH6 TH3 TH4

41 21 2 1 TH32 (BLK)

TH32

t° t° t° t° t°

LEV-B (RED)

LEV-B

LED1

LED2

61 LEV-A (WHT)

LEV-A

CNVMNT

(WHT)

CNMNT

(WHT)

CNM

(WHT)

3 5

141

63H1

63H

(YLW)

63H

63H2

CN2

(WHT)

CN2

(WHT)

CNDM

(WHT)

CN3S

(WHT)

CN51

(WHT)

1 3 1 3 1

X51

X52

SW7

SW6SW1

SW9

CN31

*1*1

*3. For RP200

*3. For RP250

SW5SW8SW4

SWP

CN4

(WHT)

1 2

1313

21S4

(WHT)

21S4 (GRN)

CNAC (WHT)

CNDC

(PNK)

CNS

(WHT)

3 1

TRANS

CNF1 (WHT)

CNF2 (WHT)

MF1

MF2

C. B.

P. B.

CN5

(WHT)

3 1

LED2

SW1

SW11

SW12

LED3 LED4

TB7

LED1

LED5

2 1

CND

(WHT)

CN2M

(WHT)

M-NET ADAPTER

M-NET

A B S

When M-NET adapter is connected

1 2

CN4

(WHT)

CN5

(RED)

WHT

FUSE1

FUSE2

WHT

REDRED

POWER SUPPLY 3N~ 400V 50Hz

INDOOR UNIT

TB1

CNDC

(PNK)

CNL

(BLU)

311 2

CNCT (RED)

CNAC2

(RED)

CNAC1 (WHT)

BLK

WHT

LO 1

LO 2

LO3

LI 1

LI 2

LI 3

RED

WHT

BLU

BLK

GRN/YLW

GD2GD1

RED

WHT

BLK

N. F.

TB2

DCL

ACL4

ORN

YLW

CY2

CY1

BRN

RED

WHT

BLK

X52A

BLK

TB-P2

TB-P1

TB-C1 TB-N1

CB1 CB2

TB-L1

TB-L2

TB-L3

SC-U

SC-V

SC-W

RED

MODEL

SW6

*1 MODEL SELECT

SW5-6 *2

1 2 3 4 5 6 7 8

*2. SW5 -1 to 5 : Function Switch

The black square (■) indicates a switch position.

OFF

1 2 3 4 5 6

OFF

200Y

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6

OFF

250Y

FUSE1, FUSE2

Connector<Connection for Option>

CN51

Relay

X51,X52

Connector<Connection for Option>

CN3S

TB1 MC

MF1,MF2 21S4 63H,63H1,63H2 TH3 TH4 TH6 TH7

LEV-A,LEV-B DCL

Terminal Block<Power Supply>

TB2 Terminal Block<Indoor/Outdoor>

Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch

Thermistor<Outdoor Pipe>

SC-U/V/W TB-L1/L2/L3

Connection Terminal<U/V/W-Phase>

Thermistor<Discharge> Thermistor<Outdoor 2-Phase Pipe> Thermistor<Outdoor>

TH32 Thermistor<Shell>

Fuse<T15AL250V>

Electronic Expansion Valve

Reactor

ACL4

Reactor

Connection Terminal<L1/L2/L3-Power supply>

P.B.

Power Circuit Board

Rush Current Protect Resistor

CB1,CB2

Main Smoothing Capacitor

Connection Terminal

Noise Filter Circuit Board Connection Terminal

<L1/L2/L3/NI-Power supply

Connection Terminal<Ground>

52C Relay

N.F.

LI1/ LI2/LI3/NI LO1/ LO2/LO3

Connection Terminal

GD1,GD2

Controller Circuit Board

C.B.

TB-C1

X52A

Connection Terminal

TB-N1

SYMBOL NAME SYMBOL NAME SYMBOL NAME

Connection Terminal

TB-P1

Connection Terminal

TB-P2

Switch<Function Setup>

Switch<Forced Defrost, Defect History Record Reset, Refrigerant Address>

Switch<Test Operation> Switch<Function Switch> Switch<Model Select>

SW1 SW4

SW5 SW6

SW8

Switch

SW9

Switch<Pump Down>

SWP

Connector<Emergency Operation> LED<Operation Inspection Indicators>

CN31

F3,F4

CNMNT CNVMNT

CNDM

Connector < Connected for Option (Contact Input)>

Fuse<T6.3AL250V

LED1,LED2

CNM

Connector<A-Control Service Inspection Kit>

Connector<Connection for Option>

Connector <Connected to Optional M-NET Adapter Board>

Terminal Block(M-NET connection)

Connector<Transmission> Connector<Power Supply>

LED<Power Supply:DC5V>

LED<Power Supply:DC12V>

LED<Connection to Outdoor Unit> LED<Transmission:Sending> LED<Transmission:Receiving>

Connector<M-NET communication>

SYMBOL

NAME

Switch<Address setting:10s digit>

Switch<Status of communication> Switch<Address setting:1s digit>

TB7 CN5 CND CN2M SW1 SW11 SW12 LED1 LED2 LED3 LED4 LED5

M-NET ADAPTER

Switch<Function Setup>

SW7

Capacitor

CY1,CY2

OCH451B

Page 25

PUHZ-RP200YKAR1

TH7/6 (RED)

TH3

(WHT)

TH4

(WHT

)

TH7TH6 TH3 TH4

41 21 2 1 TH32 (BLK)

TH32

t° t° t° t° t°

LEV-B (RED)

LEV-B

LED1

LED2

61 LEV-A (WHT)

LEV-A

CNVMNT

(WHT)

CNMNT

(WHT)

CNM

(WHT)

3 5

141

63H

(YLW)

63H

CN2

(WHT)

CN2

(WHT)

CNDM

(WHT)

CN3S

(WHT)

CN51

(WHT)

1 3 1 3 1

X51

X52

SW7

SW6SW1

SW9

CN31

*1*1

SW5SW8SW4

SWP

CN4

(WHT)

1 2

1313

21S4

(WHT)

21S4 (GRN)

CNAC (WHT)

CNDC

(PNK)

CNS

(WHT)

3 1

TRANS

CNF1 (WHT)

CNF2 (WHT)

MF1

MF2

C. B.

P. B.

CN5

(WHT)

3 1

LED2

SW1

SW11

SW12

LED3 LED4

TB7

LED1

LED5

2 1

CND

(WHT)

CN2M

(WHT)

M-NET ADAPTER

M-NET

A B S

When M-NET adapter is connected

1 2

CN4

(WHT)

CN5

(RED)

WHT

FUSE1

FUSE2

WHT

REDRED

POWER SUPPLY 3N~ 400V 50Hz

INDOOR UNIT

TB1

CNDC

(PNK)

CNL

(BLU)

311 2

CNCT (RED)

CNAC2

(RED)

CNAC1 (WHT)

BLK

WHT

LO 1

LO 2

LO3

LI 1

LI 2

LI 3

RED

WHT

BLU

BLK

GRN/YLW

GD2GD1

RED

WHT

BLK

N. F.

TB2

DCL

ACL4

ORN

YLW

CY2

CY1

BRN

RED

WHT

BLK

X52A

BLK

TB-P2

TB-P1

TB-C1 TB-N1

CB1 CB2

TB-L1

TB-L2

TB-L3

SC-U

SC-V

SC-W

RED

MODEL

SW6

*1 MODEL SELECT

SW5-6 *2

1 2 3 4 5 6 7 8

*2. SW5 -1 to 5 : Function Switch

The black square (■) indicates a switch position.

OFF

1 2 3 4 5 6

OFF

200Y

FUSE1, FUSE2

Connector<Connection for Option>

CN51

Relay

X51,X52

Connector<Connection for Option>

CN3S

TB1 MC

MF1,MF2 21S4 63H TH3 TH4 TH6 TH7

LEV-A,LEV-B DCL

Terminal Block<Power Supply>

TB2 Terminal Block<Indoor/Outdoor>

Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve) High Pressure Switch

Thermistor<Outdoor Pipe>

SC-U/V/W TB-L1/L2/L3

Connection Terminal<U/V/W-Phase>

Thermistor<Discharge> Thermistor<Outdoor 2-Phase Pipe> Thermistor<Outdoor>

TH32 Thermistor<Shell>

Fuse<T15AL250V>

Electronic Expansion Valve

Reactor

ACL4

Reactor

Connection Terminal<L1/L2/L3-Power supply>

P.B.

Power Circuit Board

Rush Current Protect Resistor

CB1,CB2

Main Smoothing Capacitor

Connection Terminal

Noise Filter Circuit Board Connection Terminal

<L1/L2/L3/NI-Power supply

Connection Terminal<Ground>

52C Relay

N.F.

LI1/ LI2/LI3/NI LO1/ LO2/LO3

Connection Terminal

GD1,GD2

Controller Circuit Board

C.B.

TB-C1

X52A

Connection Terminal

TB-N1

SYMBOL NAME SYMBOL NAME SYMBOL NAME

Connection Terminal

TB-P1

Connection Terminal

TB-P2

Switch<Function Setup>

Switch<Forced Defrost, Defect History Record Reset, Refrigerant Address>

Switch<Test Operation> Switch<Function Switch> Switch<Model Select>

SW1 SW4

SW5 SW6

SW8

Switch

SW9

Switch<Pump Down>

SWP

Connector<Emergency Operation> LED<Operation Inspection Indicators>

CN31

F3,F4

CNMNT CNVMNT

CNDM

Connector < Connected for Option (Contact Input)>

Fuse<T6.3AL250V

LED1,LED2

CNM

Connector<A-Control Service Inspection Kit>

Connector<Connection for Option>

Connector <Connected to Optional M-NET Adapter Board>

Terminal Block(M-NET connection)

Connector<Transmission> Connector<Power Supply>

LED<Power Supply:DC5V>

LED<Power Supply:DC12V>

LED<Connection to Outdoor Unit> LED<Transmission:Sending> LED<Transmission:Receiving>

Connector<M-NET communication>

SYMBOL

NAME

Switch<Address setting:10s digit>

Switch<Status of communication> Switch<Address setting:1s digit>

TB7 CN5 CND CN2M SW1 SW11 SW12 LED1 LED2 LED3 LED4 LED5

M-NET ADAPTER

Switch<Function Setup>

SW7

Capacitor

CY1,CY2

OCH451B

Page 26

9 WIRING SPECIFICATIONS

1 2

S1 S2 S3

Indoor/outdoor unit connection cable

Indoor unit

Unit power supply

Outdoor unit

Remote controller



 Earth leakage breaker  wiring circuit breaker or

isolating switch





 Earth leakage breaker  wiring circuit breaker or

isolating switch



L N

1 2

Indoor unit

S2 S3

S1 S2 S3

Unit power supply

Indoor/outdoor unit connection cable

Indoor unit

Outdoor unit

Remote controller



 Earth leakage breaker  wiring circuit breaker or

isolating switch



1 2

S1 S2 S3

Indoor/outdoor connection cable

Indoor unit

Unit power supply

Indoor unit

Outdoor unit

Remote controller

L N

Notes: 1. Wiring size must comply with the applicable local and national code..

2. Power supply cables and Indoor/Outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable.

3. Install an earth longer than other cables.

Warning: In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3 terminals when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type.

(Design 60245 IEC 57)

A-Control

Outdoor Unit

3 poles isolator

Power supply

Isolator

A-Control

Indoor Unit

OCH451B

9-1. FIELD ELECTRICAL WIRING (power wiring specifications)

Outdoor unit model RP35, 50V RP60, 70V RP100,125V Outdoor unit power supply Outdoor unit input capacity Main switch (Breaker)

Outdoor unit power supply 3 × Min. 1.5 3 × Min. 2.5 3 × Min. 4 3 × Min. 6 5 × Min. 1.5 5 × Min. 4

)

Indoor unit-Outdoor unit *2 3 × 1.5 (Polar) 3 × 1.5 (Polar) 3 × 1.5 (Polar) 3 × 1.5 (Polar) 3 × 1.5 (Polar)

Wiring

Indoor unit-Outdoor unit earth *2 1 × Min. 1.5 1 × Min. 1.5 1 × Min. 1.5 1 × Min. 1.5 1 × Min. 1.5 1 × Min. 2.5

Wire No. ×

size (mm

Remote controller-Indoor unit *3 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar) Outdoor unit L-N (single) Outdoor unit L1-N, L2-N, L3-N (3 phase) Indoor unit-Outdoor unit S1-S2 *4 AC 230 V AC 230 V AC 230 V AC 230 V AC 230 V AC 230 V Indoor unit-Outdoor unit S2-S3

Circuit rating

Remote controller-Indoor unit *4 DC 12 V DC 12 V DC 12 V DC 12 V DC 12 V DC 12 V

~/N (single), 50 Hz,

*1 16 A 25 A 32 A 40 A 16 A 32 A

*4 AC 230 V AC 230 V AC 230 V AC 230 V AC 230 V AC 230 V

*4 DC 24 V DC 24 V DC 24 V DC 24 V DC 24 V DC 24 V

230 V

~/N (single), 50 Hz,

230 V

~/N (single), 50 Hz,

230 V

*1. A breaker with at least 3.0 mm contact separation in each poles shall be provided. Use earth leakage breaker (NV). *2. (RP35-140)

Max. 45 m If 2.5 mm2 used, Max. 50 m If 2.5 mm2 used and S3 separated, Max. 80 m (RP200, 250) Max. 80 m Total Max. including all indoor/indoor connection is 80 m.

• Use one cable for S1 and S2 and another for S3 as shown in the picture.

• Max. 50 m Total Max. for PEA. Wiring size 3 × 1.5 (Polar).

*3. The 10 m wire is attached in the remote controller accessory.

*4. The gures are NOT always against the ground.

S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.

Caution: Be sure to install N-Line. Without N-Line, it could cause damage to the unit.

RP140V RP100, 125, 140Y RP200, 250

~/N (single), 50 Hz,

230 V

3N~ (3 ph 4-wires),

50 Hz, 400 V

3N~ (3 ph 4-wires),

Cable length 50m:3×4 (Polar)/ Cable length 80m:3×6 (Polar)

50 Hz, 400 V

1:1 system Electrical wiring Synchronized twin and triple system Electrical wiring

• Synchronized twin

• Synchronized triple

26 27

Page 27

S1 S2 S3

Indoor/outdoor unit connection cable

Indoor unit

Unit power supply

Outdoor unit

L1 L2 L3



S1 S2 S3

L1 L2 L3







1 2

Remote controller

 Earth leakage breaker  wiring circuit breaker or

isolating switch

1:1 System (Indoor : PEA-200, 250) 1:2 System (Indoor : PEA-400, 500)

S1 S2 S3

Indoor/outdoor unit connection cable

Indoor unit

Unit power supply

Outdoor unit No.1

L1 L2 L3



S1 S2 S3

L1 L2 L3

 Earth leakage breaker  wiring circuit breaker or

isolating switch







S1 S2 S3

Indoor/outdoor unit connection cable

TB4-1

TB4-2

Unit power supply

Outdoor unit No.2

L1 L2 L3



S1 S2 S3



1 2

Remote controller

The following connection patterns are available. The outdoor unit power supply patterns vary on models.

1:1 System

* The optional indoor power supply terminal kit is required.

S1 S2

1 2

S1 S2 S3

















* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.

 Outdoor unit power supply  Earth leakage breaker  Wiring circuit breaker or isolating switch  Outdoor unit  Indoor unit/outdoor unit connecting cords  Remote controller  Indoor unit  Option  Indoor unit power supply

Simultaneous twin/triple system

* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.

The optional indoor power supply terminal kit is required.

        

Outdoor unit power supply Earth leakage breaker Wiring circuit breaker or isolating switch Outdoor unit Indoor unit/outdoor unit connecting cales Remote controller Indoor unit Option Indoor unit power supply



Indoor unit earth

If the indoor and outdoor units have separate power supplies, refer to the table below. If the optional indoor power supply terminal kit is used, change the indoor unit electrical box wiring referring to the figure in the right and the DIP switch settings of the outdoor unit control board.

Indoor power supply terminal kit (option) Indoor unit electrical box connector connection change Label affixed near each wiring diagram for the indoor and outdoor units Outdoor unit DIP switch settings (when using separate indoor unit/outdoor unit power supplies only)

Indoor unit specifications

Required Required

Required

Electric heater (For models with heater)

Connectors (connections when shipped from the factory are for indoor unit power supplied from outdoor unit)

Indoor unit power supplied from outdoor unit (when shipped from factory)

If the indoor and outdoor units have separate power supplies, change the connections of the connectors as shown in the following figure.

Connectors

Indoor unit

control board

Separate indoor unit/outdoor unit power supplies

Electric heater (For models with heater)

S1 S2 S3

BLUE

YELLOW

CND

ORANGE

CND

ORANGE

S1 S2 S3

L N

YELLOW

BLUE

YELLOW

CND

Indoor unit

control board

* There are 3 types of labels (labels A, B, and C). Affix the appropriate labels to

the units according to the wiring method.

ON OFF

Set the SW8-3 to ON.

1 2 (SW8)





 

  















L N

S1 S2 S3

1 2

S1 S2 S3

L N

S1 S2 S3

1 2

L N

S1 S2 S3

1 2

  

 

OCH451B

9-2. SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES

Page 28

*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV). The breaker shall be provided to ensure disconnection of all active phase conductor of the supply. *2. Max. 120 m *3.The 10 m wire is attached in the remote controller accessory. Max. 500 m *4.The figures are NOT always against the ground.

Notes: 1. Wiring size must comply with the applicable local and national code.

2. Power supply cables and indoor unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable. (Design 60245 IEC 57)

3. Install an earth longer than other cables.

Indoor unit model Indoor unit power supply Indoor unit input capacity

Main switch (Breaker)

Indoor unit power supply Indoor unit power supply earth Indoor unit-Outdoor unit *2 Indoor unit-Outdoor unit earth Remote controller-Indoor unit *3

Indoor unit L-N *4

Indoor unit-Outdoor unit S1-S2 *4 Indoor unit-Outdoor unit S2-S3 *4 Remote controller-Indoor unit *4

RP35~140

~/N (single), 50 Hz, 230 V

16 A

2% Min. 1.5 1% Min. 1.5 2% Min. 0.3

–

2 % 0.3 (Non-polar)

AC 230 V

– DC24 V DC12 V

Circuit

rating

Wiring

Wire No.

% size

(mm

)

9-3. INDOOR – OUTDOOR CONNECTING CABLE

The cable shall not be lighter than design 60245 IEC or 60227 IEC.

+ The Max. cable length may vary depending on the condition of installation, humidity or materials, etc.

Indoor unit-Outdoor unit

Outdoor power supply

Max. 45m

3 % 1.5 (polar)

1 % Min. 1.5

Max. 50m

3 % 2.5 (polar)

1 % Min. 2.5

Max. 80m

3 % 2.5 (polar) and S3 separated

1 % Min. 2.5

Indoor unit-Outdoor unit earth

Wire No. % Size ($)

Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections). Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at the intermediate connection point.

Indoor unit-Outdoor unit

Indoor/Outdoor separate power supply

Max. 120m

2 % Min. 0.3

—

Indoor unit-Outdoor unit earth

Wire No. % Size ($)

+ The optional indoor power supply terminal kit is necessary

Cross section of cable Wire size (mm

) Number of wires Polarity L(m)*6

Round

2.5 3

Clockwise : S1-S2-S3 *Pay attention to stripe of yellow and green

(30)

Flat

2.5 3

Not applicable

(Because center wire has no cover ﬁnish)

Not applicable

Flat

1.5 4

From left to right : S1-Open-S2-S3

(18)

Round

2.5 4

Clockwise : S1-S2-S3-Open *Connect S1 nad S3 to the opposite angle

(30)

*1 :Power supply cords of appliances shall not be lighter than design 60245 IEC or 227 IEC. *2 :In case that cable with stripe of yellow and green is available. *3 :In case of regular polarity connection (S1-S2-S3), wire size is 1.5 mm2. *4 :In case of regular polarity connection (S1-S2-S3).

*5 :In the ﬂat cables are connected as this picture, they can be used up to 30 m.

*6 :Mentioned cable length is just a reference value. It may be different depending on the condition of installation, humidity or materials, etc.

(3C Flat cable × 2)

OCH451B

For PUHZ-RP200/250YKA, PUHZ-RP200YKAR1

Page 29

9-4. M-NET WIRING METHOD

Group remote controller

Refrigerant address 00

M-NET address 01

A-control remote controller

Refrigerant address 00

M-NET address 02

Refrigerant address 00

M-NET address 03

Power supply unit for transmission wire

Central remote controller

M-NET transmission wire

Bad example (Multi spot earthing of shield wire)

Good example 1 (Single spot earthing of shield wire)

Power supply appliance

M-NET type outdoor unit

Central remote controller

Power supply appliance

M-NET type outdoor unit

M-NET transmission wire

M-NET type outdoor unit

Central remote controller

Power supply appliance

M-NET type outdoor unit

M-NET transmission wire

M-NET type outdoor unit

Good example 2 (Single spot earthing of shield wire)

OCH451B

(Points to note) (1) Outside the unit, transmission wires should stay away from electric wires in order to prevent electromagnetic noise from

making an influence on the signal communication. Place them at intervals of more than 5 cm. Do not put them in the same

conduit tube. (2) Terminal block (TB7) for transmission wires should never be connected to 220~240V power supply. If it is connected, electronic parts on M-NET P.C. board may burn out. (3) Use 2-core × 1.25mm2 shield wire (CVVS, CPEVS) for the transmission wire. Transmission signals may not be sent or

received normally if different types of transmission wires are put together in the same multi-conductor cable. Never do this

because this may cause a malfunction.

It would be OK if M-NET wire (non-polar, 2-cores) is arranged in addition to the wiring for A-control.

(4) Earth only one of any appliances through M-NET transmission wire (shield wire). Communication error may occur due to

the influence of electromagnetic noise. “Ed” error will appear on the LED display of outdoor unit. “0403” error will appear on the central-control remote controller.

If there are more than 2 earthing spots on the shield wire, noise may enter into the shield wire because the earth wire and

To avoid communication errors caused by noise, make sure to observe the single spot earthing method described in the

shield wire form 1 circuit and the electric potential difference occurs due to the impedance difference among earthing spots.

In case of single spot earthing, noise does not enter into the shield wire because the earth wire and shield wire do not form

1 circuit.

installation manual.

Page 30

1 2

M-NET Address No.

Switch setting

SW11 ones digit

SW12 tens digit

OFF

Refrigerant address

OFF

System controller

A-control remote controller

Group A Group B Group C

A-control remote controller

TB5

A-control remote controller

Refrigerant address 00

M-NET address 01

Refrigerant address 00

M-NET address 02

Refrigerant address 01

M-NET address 03

Refrigerant address 00

M-NET address 04

Power supply unit for transmission wire

A-control remote controller

TB5

Group A Group B

Refrigerant address 00

M-NET address 01

Refrigerant address 01

M-NET address 02

Refrigerant address 00

M-NET address 04

Refrigerant address 01

M-NET address 03

Refrigerant address 02

M-NET address 05

System controller

Power supply unit for transmission wire

M-NET wiring

Transmission

wire

Shield part

M-NET terminal block

Earth wire

A B S

OCH451B

(1) Use 2-core × 1.25mm2 shield wire for electric wires. (Excluding the case connecting to system controller.) (2) Connect the wire to the M-NET terminal block. Connect one core of the transmission wire (non-polar) to A terminal and the other to B. Peel the shield wire, twist the shield part to a string and connect it to S terminal. (3) In the system which several outdoor units are being connected, the terminal (A, B, S) on M-NET terminal block should be individually wired to the other outdoor unit’s terminal, i.e. A to A, B to B and S to S. In this case, choose one of those outdoor units and drive a screw to fix an earth wire on the plate as shown on the right figure.

9-4-1. M-NET address setting

In A-control models, M-NET address and refrigerant address should be set only for the outdoor unit. Similar to CITY MULTI system, there is no need to set the address of outdoor unit and remote controller. To construct a central control system, the setting of M-NET address should be conducted only upon the outdoor unit. The setting range should be 1 to 50 (the same as that of the indoor unit in CITY MULTI system), and the address number should be consecutively set in a same group.

Address number can be set by using rotary switches (SW11 for 1s digit and SW12 for 10s digit), which is located on the M-NET board of outdoor unit. (Initial setting: all addresses are set to “0”.)

9-4-2. Refrigerant address setting

In case of multiple grouping system (multiple refrigerant circuits in 1 group), indoor units should be connected by remote controller wiring (TB5) and the refrigerant address needs to be set. Leave the refrigerant addresses to “00” if the group setting is not conducted. Set the refrigerant address by using DIP SW1-3 to -6 on the outdoor controller board. [Initial setting: all switches are OFF. (All refrigerant addresses are “00”.)]

9-4-3. Regulations in address settings

In case of multiple grouping system, M-NET and refrigerant address settings should be done as explained in the above section. Set the lowest number in the group for the outdoor unit whose refrigerant address is “00” as its M-NET address.

w Refrigerant addresses can be overlapped if they are in the different group.

w In group B, M-NET address of the outdoor unit whose refrigerant address is “00” is not set to the minimum in the group.

As “3” is right for this situation, the setting is wrong. Taking group A as a good sample, set the minimum M-NET address in

the group for the outdoor unit whose refrigerant address is “00”.

30 31

Page 31

10 REFRIGERANT SYSTEM DIAGRAM

Refrigerant flow in cooling Refrigerant flow in heating

Thermistor TH7 (Outdoor)

Heat exchanger

Refrigerant GAS pipe connection(1/2F)

Refrigerant LIQUID pipe connection(1/4F)

Stop valve

Strainer #100

Power receiver

Linear expansion valve B

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

Charge plug

High pressure switch 63H

Thermistor TH4 (Discharge)

Thermistor TH32 (Shell)

Compressor

Strainer #50

Solenoid valve (Four-way valve)

Muffler

Distributor

Thermistor TH33 (Outdoor pipe)

Linear expansion valve A

Strainer #100

Muffler

Stop valve (with service port)

Distributor

Thermistor TH7 (Outdoor)

Thermistor TH33 (Outdoor pipe)

Heat exchanger

Refrigerant LIQUID pipe

connection :9.52(3/8)

Stop valve (with service port)

Strainer #100

Power receiver

Linear expansion valve B

Linear expansion valve A

Strainer #100

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

High pressure switch 63H

Thermistor TH4 (Discharge)

Thermistor TH32 (Shell)

Compressor

Strainer #50

Strainer #100

4-way valve

Muffler

Charge plug (Low pressure)

Charge plug (High pressure)

Stop valve (with service port)

Refrigerant GAS pipe connection :15.88(5/8)

OCH451B

PUHZ-RP35VHA4 PUHZ-RP50VHA4

Unit : mm (inch)

PUHZ-RP60VHA4 PUHZ-RP71VHA4

Page 32

Distributor

Thermistor TH7 (Outdoor)

Thermistor TH33 (Outdoor pipe)

Heat exchanger

Refrigerant LIQUID pipe

connection(3/8)

Stop valve (with service port)

Strainer #100

Power receiver

Linear expansion valve B

Linear expansion valve A

Strainer #100

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

High pressure switch 63H

Thermistor TH4 (Discharge)

Thermistor TH32 (Shell)

Compressor

Strainer #50

Strainer #100

4-way valve

Muffler

Charge plug

(Low pressure)

Charge plug (High pressure)

Ball valve

Refrigerant GAS pipe connection(5/8)

Refrigerant flow in cooling Refrigerant flow in heating

PUHZ-RP100VKA PUHZ-RP125VKA

Distributor

Thermistor TH7 (Outdoor)

Thermistor TH33 (Outdoor pipe)

Heat exchanger

Refrigerant LIQUID pipe connection :9.52(3/8)

Stop valve (with service port)

Strainer #100

Power receiver

Linear

Heat interchange circuit

expansion valve B

Linear expansion valve C

Linear expansion valve A

Strainer

#100

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

High pressure switch 63H

Thermistor TH4 (Discharge)

Thermistor TH32 (Shell)

Compressor

Strainer #50

Strainer #100

4-way valve

Muffler

Charge plug

(Low pressure)

Charge plug (High pressure)

Ball valve

Refrigerant GAS pipe connection :15.88(5/8)

OCH451B

PUHZ-RP100YKA PUHZ-RP125YKA

Unit : mm (inch)

PUHZ-RP140VKA PUHZ-RP140YKA

Page 33

PUHZ-RP200YKA

Distributor

Thermistor TH7 (Outdoor)

Heat exchanger

Refrigerant LIQUID pipe

connection :9.52(3/8)

Stop valve (with service port)

Strainer #100

Power receiver

Linear expansion valve B

Linear expansion valve A

Strainer

#100

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

High pressure switch 63H

Thermistor TH4 (Discharge)

Thermistor TH32 (Shell)

Compressor

Strainer #50

Strainer #100

4-way valve

Muffler

Charge plug

(Low pressure)

Charge plug (High pressure)

Ball valve

Refrigerant GAS pipe

connection :25.4(1)

Refrigerant flow in cooling Refrigerant flow in heating

Distributor

Thermistor (TH7)

Heat exchanger

Refrigerant LIQUID pipe

:12.7(:1/2 inch)

Stop valve (with service port)

Strainer (#100)

Power receiver

Linear expansion valve B

Linear expansion valve A

Strainer (#100)

Thermistor (TH6)

Thermistor (TH3)

High pressure switch (63H1)

Thermistor (TH4) (Discharge)

Thermistor (TH32) (Shell)

Compressor

Strainer (#50)

Strainer (#100)

4-way valve

Muffler

Ball valve

Service port (check)

Service port

(check)

High pressure switch(63H2)

Refrigerant GAS pipe :25.4(:1 inch)

Strainer (#100)

OCH451B

PUHZ-RP200YKAR1

Unit : mm (inch)

PUHZ-RP250YKA

Page 34

10-1. Refrigerant recovering (pump down)

OFF

1 2

<SW4>

 

 

 Stop  Operation  Cooling  Heating

OCH451B

Perform the following procedures to recover the refrigerant while operating the indoor unit or the outdoor unit.

Turn on the power supply (circuit breaker).

When power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. If

“CENTRALLY CONTROLLED” is displayed, the refrigerant recovering (pump down) cannot be completed normally.

After the gas stop valve is closed, set the SWP switch on the control board of the outdoor unit to ON. The compressor (outdoor

unit) and fans (indoor and outdoor units) start operating and refrigerant recovering operation begins. LED1 and LED2 on the control board of the outdoor unit are lit.

Set the SWP switch (push-button type) to ON in order to perform refrigerant recovering operation only when the unit is

stopped. However, refrigerant recovering operation cannot be performed until compressor stops even if the unit is stopped. Wait 3 minutes until compressor stops and set the SWP switch to ON again.

Because the unit automatically stops in about 2 to 3 minutes after the refrigerant recovering operation (LED1 and LED2 are

lit), be sure to quickly close the gas stop valve.

In case the outdoor unit is stopped when LED1 and LED2 are lit, open the liquid stop valve completely, and then repeat step

2 3 minutes later.

If the refrigerant recovering operation has been completed normally (LED1 and LED2 are lit), the unit will remain stopped

until the power supply is turned off.

Turn off the power supply (circuit breaker.) * Note that when the length of the extension piping is long, it may not be possible to perform a pump-down operation. When performing the pump-down operation, make sure that the low pressure is lowered to near 0 MPa (gauge).

Warning:

When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes. The compressor may burst if air etc. get into it.

10-2. Start and finish of test run

• Operation from the indoor unit Execute the test run using the installation manual for the indoor unit.

• Operation from the outdoor unit By using the DIP switch SW4 on the control board of outdoor unit, test run can be started and finished, and its operation mode (cooling/heating) can be set up.

 1Set the operation mode (cooling/heating) using SW4-2.  2Turn on SW4-1 to start test run with the operation mode set by SW4-2.  3Turn off SW4-1 to finish the test run.

• There may be a faint knocking sound around the machine room after power is supplied, but this is no problem with product because the linear expansion pipe is just moving to adjust opening pulse.

• There may be a knocking sound around the machine room for several seconds after compressor starts operating, but this is no problem with product because the check valve itself, generates the sound because pressure difference is small in the refrigerant circuit.

Note: The operation mode cannot be changed by SW4-2 during test run. (To change test run mode, stop the unit by SW4-1, change the operation mode and restart the test run by SW4-1.)

34 35

Page 35

11 TROUBLESHOOTING

Unit conditions at service

Error code

Actions to be taken for service (summary)

The trouble is reoccurring.

Displayed

Not displayed

Judge what is wrong and take a corrective action according to “11-4. Self-diagnosis action table”.

Conduct trouble shooting and ascertain the cause of the trouble according to “11-5. Troubleshooting by inferior phenomena”.

The trouble is not reoccurring.

Logged

Not logged

Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor, poor connection of wiring, noise and etc. Re-check the symptom, and check the installation environment, refrigerant amount, weather when the trouble occurred, matters related to wiring and etc. Reset error code logs and restart the unit after finishing service. There is no abnormality in electrical component, controller board, remote controller and etc.

Re-check the abnormal symptom. Conduct trouble shooting and ascertain the cause of the

trouble

according to “11-5. Troubleshooting by inferior phenomena”. Continue to operate unit for the time being if the cause is not ascertained. There is no abnormality concerning of parts such as electrical component, controller board, remote controller and etc.

OCH451B

11-1. TROUBLESHOOTING

Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit. Actions to be taken for service, which depends on whether or not the trouble is reoccurring at service, are summarized in the table below. Check the contents below before investigating details.

11-2. CHECK POINT UNDER TEST RUN

(1) Before test run

• After installation of indoor and outdoor units, piping work and electric wiring work, re-check that there is no refrigerant leak-

age, loosened connections and incorrect polarity.

• Measure impedance between the ground and the power supply terminal block (L, N) on the outdoor unit by 500V Megger and check that it is 1.0M" or over. Do not use 500V Megger to indoor/outdoor connecting wire terminal block (S1, S2, S3) and remote controller terminal block

(1, 2). This may cause malfunction.

• Make sure that test run switch (SW4) is set to OFF before turning on power supply.

• Turn on power supply 12 hours before test run in order to protect compressor.

• For specific models which require higher ceiling settings or auto-recovery feature from power failure, make proper changes of

settings referring to the description of “12. FUNCTION SETTING”.

Make sure to read operation manual before test run. (Especially items to secure safety.)

Page 36

[TEST] button

Pipe (liquid) temperature

Displays the remaining test run time.

"TEST RUN" and the currently selected operation mode are displayed alternately.







• In case of test run, the OFF timer will be activated, and the test run will automatically stop after 2 hours.

Remote Controller Display

Symptoms in test run mode

OUTDOOR BOARD LED Display

Cause

Remote controller displays “PLEASE WAIT”, and

cannot be operated.

After power is turned on, “PLEASE WAIT” is displayed for 3 minutes, then error code is displayed.

No display appears even when remote controller operation switch is turned on. (Operation lamp does not light up.)

Display appears but soon disappears even when remote controller is operated.

• After power is turned on, “PLEASE WAIT” is displayed for 2 minutes during

system startup. (Normal)

• Incorrect connection of outdoor terminal block (L1, L2, L3 and S1, S2, S3.)

• Outdoor unit’s protection devise connector is open.

• Incorrect wiring between the indoor and outdoor unit (Polarity is wrong for S1, S2, S3.)

• Remote controller transmission wire short.

• There is no outdoor unit of address 0.

(Address is other than 0.)

• Remote controller transmission wire open.

• After canceling function selection, operation is not possible for

about 30 seconds. (Normal)

After “startup” is displayed, only green lights up. <00> After “startup” is displayed,

green(once) and red(once) blink alternately. <F1>

After “startup” is displayed, green(once) and red(twice) blink

alternately. <F3, F5, F9> After “startup” is displayed,

green(twice) and red(once) blink alternately. <EA. Eb>

After “startup” is displayed, only green lights up. <00>

< > indicates digital display.

2. Press TEST button twice.

1. Turn on the main power supply.

3. Press OPERATION SWITCH button.

4. Press AIR DIRECTION button.

5. Check the outdoor unit fan for correct running.

6. Press the ON/OFF button to reset the test run in progress.

7. Register the contact number.

While the room temperature display on the remote controller is “PLEASE WAIT”, the remote controller is disabled. Wait until “PLEASE WAIT” disappears before using remote controller. “PLEASE WAIT” appears for about 2 minutes after power supply is turned on. +1

The outdoor unit features automatic capacity control to provide optimum fan speeds. Therefore, the fan keeps running at a low speed to meet the current outside air condition unless it exceeds its available maximum power. Then, in actuality, the fan may stop or run in the reverse direction depending on the outside air, but this does not mean malfunction.

Check for correct motion of auto-vanes.

Cooling mode:

Check if cool air blows and water is drained. Heating mode: Check if warm air blows. (It takes a little while until warm air blows.)

The TEST RUN appears on the screen.

Operating procedures







LCD

Contents of trouble

P1 P2 P4 P5 P6 P8 P9

Abnormality of room temperature thermistor Abnormality of pipe temperature thermistor/Liquid Abnormality of drain sensor/ Float switch connector open Drain overflow protection is operating. Freezing/overheating protection is operating. Abnormality of pipe temperature

Abnormality of pipe temperature thermistor/Cond./Eva Abnormality of indoor controller board

LCD

Contents of trouble

U1~UP

F3~F9 E0~E5 E6~EF

----

FFFF

Malfunction outdoor unit Malfunction

outdoor unit Remote controller transmitting error Indoor/outdoor unit communication error

No error history No applied unit Forced compressor stop(due to water leakage abnormality)

LED1

(microprocessor power supply)

LED2

(remote controller)

LED3

(indoor/outdoor communication)

Lights when power is supplied. Lights when power is supplied for wired remote controller. The indoor unit should be connected to the outdoor unit with address "0" setting.

Flashes when indoor and outdoor unit are communicating.

OCH451B

• The room temperature display section shows the pipe temperature of indoor units during the test run.

• Check that all the indoor units are running properly in case of simultaneous twin and triple operation. Malfunctions may not be displayed regardless of incorrect wiring. w1 After turning on the power supply, the system will go into startup mode, “PLEASE WAIT” will blink on the display section of the room temperature, and lamp (green) of the remote controller will blink. As to INDOOR BOARD LED, LED1 will be lit up, LED2 will either be lit up in case the address is 0 or turned off in case the address is not 0. LED3 will blink. As to OUTDOOR BOARD LED, LED1 (green) and LED2 (red) will be lit up. (After the startup mode of the system finishes, LED2 (red) will be turned off.) In case OUTDOOR BOARD LED is digital display,

— and — will be displayed alternately every second.

• If one of the above operations doesn’t function correctly, the causes written below should be considered. Find causes from the symptoms. The below symptoms are under test run mode. “Startup” in the table means the display status of

w1 written above.

wPress the remote controller’s CHECK button twice to perform self-diagnosis. See the table below for the contents of LCD display.

See the table below for details of the LED display (LED 1, 2, 3) on the indoor controller board.

Page 37

ON/OFF

TEMP

FAN

VANE

MODE

CHECK

LOUVER

TEST RUN

AUTO STOP

AUTO START

min

TEST RUN

RESET

SET

CLOCK









,

Test run [for wireless remote controller]

COOL

MODE

COOL

HEAT

TEST RUN

FAN

VANE

TEST RUN

OCH451B

Measure an impedance between the power supply terminal block on the outdoor unit and ground with a 500V Megger and check that it is equal to or greater than 1.0M".

1 Turn on the main power to the unit. 2 Press the button twice continuously.

(Start this operation from the status of remote controller display

turned off.) A and current operation mode are displayed. 3 Press the ( ) button to activate mode, then

check whether cool air is blown out from the unit. 4 Press the ( ) button to activate mode, then

check whether warm air is blown out from the unit. 5 Press the button and check whether strong air is blown out

from the unit. 6 Press the button and check whether the auto vane operates

properly. 7 Press the ON/OFF button to stop the test run.

Note:

• Point the remote controller towards the indoor unit receiver

while following steps 2 to 7.

• It is not possible to run in FAN, DRY or AUTO mode.

Page 38

11-3. HOW TO PROCEED "SELF-DIAGNOSIS"

11-3-1. When a Problem Occurs During Operation

If a problem occurs in the air conditioner, the indoor and outdoor units will stop, and the problem is shown in the remote controller display.

[CHECK] and the refrigerant address are displayed on the temperature display, and the error code and unit number are displayed alternately as shown below.

 (If the outdoor unit is malfunctioning, the unit number will be "00".)  In the case of group control, for which one remote controller controls

multiple refrigerant systems, the refrigerant address and error code of the unit that first experienced trouble (i.e., the unit that transmitted the error code) will be displayed.

 To clear the error code, press the

ON/OFF

button.

When using remote-/local-controller combined operation, cancel the error code after turning off remote operation. During central control by a MELANS controller, cancel the error code by pressing the

ON/OFF

button.

11-3-2. Self-Diagnosis During Maintenance or Service

Since each unit has a function that stores error codes, the latest check code can be recalled even if it is cancelled by the remote controller or power is turned off.

Check the error code history for each unit using the remote controller.



Switch to self-diagnosis mode.



Press the

CHECK

button twice within 3 seconds. The display content

will change as shown below.



Set the unit number or refrigerant address you want to diagnose.



Press the [TEMP] buttons ( and ) to select the desired number or address. The number (address) changes between [01] and [50] or [00]



Display self-diagnosis results. <When there is error code history> (For the definition of each error code, refer to the indoor unit's installation manual or service handbook.)



Reset the error history. Display the error history in the diagnosis result display screen (see step ).



















Error code (2 or 4 digits)

(Alternating Display)

Address (3 digits) or unit number (2 digits)

The refrigerant address will begin to blink approximately 3 seconds after being

selected and the self-diagnosis process will begin.

Unit number or refrigerant address to be diagnosed

Error code (2 or 4 digits)

(Alternating Display)

Address (3 digits) or unit number (2 digits)

and

[15].

OCH451B

Page 39

Transmission data from remote controller Transmission data on transmission path

When the number of data errors is "02":

 Press the

ON/OFF

button twice within 3 seconds. The self-diagnosis

address or refrigerant address will blink.

When the error history is reset, the display will look like the one shown below. However, if you fail to reset the error history, the error content will be displayed again.

 Cancel self-diagnosis.

Self-diagnosis can be cancelled by the following 2 methods.

 Press the

CHECK

button twice within 3 seconds. → Self-diagnosis will be cancelled and the screen will return to the previous state in effect before the start

of self-diagnosis.

 Press the

ON/OFF

button. → Self-diagnosis will be cancelled and the indoor unit will stop.

11-3-3. Remote Controller Diagnosis

If the air conditioner cannot be operated from the remote controller, diagnose the remote controller as explained below.

 First, check that the power-on indicator is lit.

If the correct voltage (DC12 V) is not supplied to the remote controller, the indicator will not light. If this occurs, check the remote controller's wiring and the indoor unit.

 Switch to the remote controller self-diagnosis mode.

 Press the

CHECK

button for 5 seconds or more. The display content will

change as shown below.

 Press the

FILTER

button to start self-diagnosis.

 Remote controller self-diagnosis result

[When the remote controller is functioning correctly]

Check for other possible causes, as there is no problem with the remote controller.

[When the remote controller malfunctions] (Error display 1) "NG" blinks. → The remote controller's transmitting-receiv-

ing circuit is defective.

The remote controller must be replaced with a new one.

[Where the remote controller is not defective, but cannot be operated.] (Error display 2) [E3], [6833] or [6832] blinks. → Transmission is not possible.

There might be noise or interference on the transmission path, or the indoor unit or other remote controllers are defective. Check the transmission path and other controllers.

(Error display 3)

"ERC" and the number of data errors are displayed.

→ Data error has occurred.

The number of data errors is the difference between the number of bits sent from the remote controller and the number actually transmitted through the transmission path. If such a problem is occurring, the transmitted data is affected by noise, etc. Check the transmission path.

 To cancel remote controller diagnosis

 Press the

CHECK

button for 5 seconds or more. Remote controller diagnosis will be cancelled, "PLEASE WAIT" and operation lamp will blink. After

approximately 30 seconds, the state in effect before the diagnosis will be restored.

Power on indicator

OCH451B

Page 40

11-3-4. Malfunction-diagnosis method by wireless remote controller

ON/OFF

TEMP

FAN

VANE

MODE

CHECK

LOUVER

TEST RUN

AUTO STOP

AUTO START

min

RESET

SET

CLOCK

CHECK

CHECK display

Temperature button

CHECK button

Refrigerant address display

HOUR button

ON/OFF button

OCH451B

When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform unusual stop.

<Malfunction-diagnosis method at maintenance service>

[Procedure]

1. Press the CHECK button twice.

• "CHECK" lights, and refrigerant address "00" flashes.

• Check that the remote controller's display has stopped before continuing.

2. Press the temperature buttons.

3. Point the remote controller at the sensor on the indoor unit and press the HOUR button.

4. Point the remote controller at the sensor on the indoor unit and press the ON/OFF button.

• Select the refrigerant address of the indoor unit for the self-diagnosis. Note: Set refrigerant address using the outdoor unit’s DIP switch (SW1). (For more information, see the outdoor unit installation manual.)

• If an air conditioner error occurs, the indoor unit's sensor emits an intermit tent buzzer sound, the operation light flashes, and the error code is output. (It takes 3 seconds at most for error code to appear.)

• The check mode is cancelled.

Page 41

[Output pattern A] Errors detected by indoor unit

[Output pattern B]

*1If the beeper does not sound again after the initial

2 beeps to confirm the self-check start signal was received and

the OPERATION INDICATOR lamp does not come on,

there are no error records.

*2If the beeper sounds 3 times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 sec.)” after the initial 2 beeps to confirm

the self-check start signal was received, the specified refrigerant address is incorrect.

OPERATION INDICATOR lamp flash pattern

Beep Beep Beep Beep Beep Beep Beep

Off

Approx. 2.5 sec.OnApprox. 3 sec.On0.5 sec.On0.5 sec.On0.5 sec.On0.5 sec.

Off

Approx. 2.5 sec.OnApprox. 3 sec.On0.5 sec.On0.5 sec.

· · · Repeated

Number of blinks/beeps in pattern indicates the check code in the following table (i.e., n=5 for “U2”)

Number of blinks/beeps in pattern indicates the check code in the following table

1st2nd3

1st2

Self-check starts (Start signal received)

Beeper sounds

[Output pattern B]

OPERATION INDICATOR lamp flash pattern

Beep

Beep Beep Beep Beep Beep Beep

Off

Approx. 2.5 sec.On0.5 sec.On0.5 sec.On0.5 sec.

0.5 sec.

Off

Approx. 2.5 sec.On0.5 sec.On0.5 sec.

· · · Repeated

Number of blinks/beeps in pattern indicates the check code in the following table (i.e., n=5 for “P5”)

Number of blinks/beeps in pattern indicates the check code in the following table

1st2nd3

1st2

Self-check starts (Start signal received)

Beeper sounds

• Refer to the following tables for details on the check codes. [Output pattern A]

Beeper sounds/OPERATION

INDICATOR lamp flashes Check code

Symptom Remark

(Number of times)

Wireless remote controller

Wired remote controller

Beeper sounds/OPERATION

INDICATOR lamp flashes Check code

(Number of times)

Wireless remote controller

Wired remote controller

1 P1

Intake sensor error

P9 Pipe (TH5) sensor error

P2 Pipe (TH2) sensor error

3 E6,E7

Indoor/outdoor unit communication error

4 P4 Drain sensor error/Float switch connector (CN4F) open 5

P5 Drain pump error

PA Forced compressor stop (due to water leakage abnormality) 6 P6 Freezing/Overheating protection operation 7 EE Communication error between indoor and outdoor units 8 P8 Pipe temperature error 9 E4, E5 Remote controller signal receiving error

–

– –

Errors detected by unit other than indoor unit (outdoor unit, etc.)

Symptom Remark

Indoor/outdoor unit communication error

(Transmitting error) (Outdoor unit)

Open/short of outdoor unit thermistors

Compressor overcurrent interruption (When compressor locked)

5 Abnormal high discharging temperature/insufficient refrigerant 6

Abnormal high pressure (63H operated)/Overheating protection operation

Abnormal temperature of heatsink

Outdoor unit fan protection stop

Compressor overcurrent interruption/Abnormal of power module

Abnormality of superheat due to low discharge temperature

Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit/Current sensor error

12 13

UP U3,U4 UF

U1,Ud

U8 U6 U7

U9,UH

Others

– –

Other errors (Refer to the technical manual for the outdoor unit.)

For details, check the LED display of the outdoor controller board.

12 Fb

Indoor unit control system error (memory error, etc.)

–

E0, E3 – E1, E2 Remote controller control board error

Remote controller transmission error

Compressor overcurrent interruption

As for indoor unit, refer to indoor unit's service manual.

OCH451B

Page 42

11-4. SELF-DIAGNOSIS ACTION TABLE

OCH451B

Error Code

Abnormal points and detection method

1 No voltage is supplied to termi-

2 Electric power is not supplied

3 Electric power is not supplied

(Note 1) Refer to indoor unit section for code P and code E.

Case

nal block (TB1) of outdoor unit.

a) Power supply breaker is

turned off.

b) Contact failure or disconnec-

tion of power supply terminal

c) Open phase (L, L2 or N

phase)

to power supply terminal of outdoor power circuit board.

a) Contact failure of power

supply terminal

b) Open phase on the outdoor

power circuit board

(Disconnection of terminal

on outdoor power circuit board)

to outdoor controller circuit board.

a) Disconnection of connector

(CNDC)

1 Check following items.

a) Power supply breaker b) Connection of power supply terminal

c) Connection of power supply terminal

2 Check following items.

a) Connection of power supply terminal block. b) Connection of terminal on outdoor power

3 Check connection of the connector (CNDC)

on the outdoor controller circuit board.

Check connection of the connector, LD1

and LD2 for RP35-71V and CNDC for RP100-250, on the outdoor power circuit board (V) / noise filter (Y). Refer to 11-9.

Judgment and action

block. (TB1)

(TB1) circuit board.

None

4 Disconnection of reactor (DCL

or ACL)

—

5 Disconnection of outdoor noise

filter circuit board or parts failure in outdoor noise filter circuit board (RP200/250)

6 Defective outdoor power circuit

board

7 Open of rush current protect

resistor (RS) (RP100-250Y)

8 Defective outdoor controller circuit board

4 Check connection of reactor. (DCL or ACL)

RP35-71V: Check connection of “LO” and “NO” on the outdoor noise filter circuit board. Check connection of “R” and “S” on the outdoor power circuit board. Refer to 11-9.

5 a) Check connection of outdoor noise filter circuit board. b) Replace outdoor noise filter circuit board.

Refer to 11-9.

6 Replace outdoor power circuit board.

7 Replace rush current protect resistor (RS)

* Power circuit board might be short-circuit. Check the power circuit board. (Refer to 11-9.)

8 Replace controller board (When items

above are checked but the units can not be

repaired.)

(5201)

63H connector open

Abnormal if 63H connector circuit is open for 3 minutes continuously after power sup ply. 63H: High-pressure switch

1 Disconnection or contact failure

of 63H connector on outdoor

controller circuit board

2 Disconnection or contact failure

of 63H

3 63H is working due to defective

parts. 4 Defective outdoor controller circuit board

1 Check connection of 63H connector on outdoor controller circuit board. Refer to 11-9.

2 Check the 63H side of connecting wire. 3 Check continuity by tester.

Replace the parts if the parts are defective. 4 Replace outdoor controller circuit board.

Page 43

Error Code

OCH451B

Abnormal points and detection method

Case

Judgment and action

(6844)

(6845)

Miswiring of indoor/outdoor unit connecting wire

1. Outdoor controller circuit board can automatically check the number of

connected indoor units. Abnormal if the

number cannot be checked automatically due to miswiring of indoor/outdoor unit connecting wire and etc. after power is turned on for 4 minutes.

2. Abnormal if outdoor controller circuit board recognizes excessive number of indoor units.

Miswiring of indoor/outdoor unit connecting wire (converse wiring or disconnection)

Outdoor controller circuit board can automatically set the unit number of indoor units. Abnormal if the indoor unit number can not be set within 4 minutes after power on because of Miswiring (converse wiring or disconnection) of indoor/outdoor unit connecting wire.

1 Contact failure or miswiring of

indoor/outdoor unit connecting wire

2 Diameter or length of indoor/

outdoor unit connecting wire is out of specified capacity.

3 Excessive number of indoor

units are connected to 1 outdoor unit. (4 units or more)

4 Defective transmitting receiving

circuit of outdoor controller circuit board 5 Defective transmitting receiving

circuit of indoor controller board

6 Defective indoor power board 7 2 or more outdoor units have

refrigerant address “0” . (In case of group control) 8 Noise has entered into power supply or indoor / outdoor unit connecting wire.

1 Contact failure or miswiring of

indoor/outdoor unit connecting

wire 2 Diameter or length of indoor/

outdoor unit connecting wire is

out of specified capacity. 4 Defective transmitting receiving

circuit of outdoor controller circuit

board 5 Defective transmitting receiving

circuit of indoor controller board

6 Defective indoor power board 7 2 or more outdoor units have

refrigerant address “0” . (In case of group control) 8 Noise has entered into power

supply or indoor/outdoor unit

connecting wire.

1 Check disconnection or looseness or polar-

ity of indoor/outdoor unit connecting wire of indoor and outdoor units.

2 Check diameter and length of indoor/outdoor

unit connecting wire. Total wiring length: 80 m (including wiring connecting each indoor unit

and between indoor and outdoor unit) Also check if the connection order of flat

cable is S1, S2, S3. 3 Check the number of indoor units that are

connected to one outdoor unit. (If EA is

detected) 4~6 Turn the power off once, and on again to

check. Replace outdoor controller circuit board, indoor controller board or indoor power board if abnormality occurs again.

7 Check if refrigerant addresses (SW1-3 to

SW1-6 on outdoor controller circuit board)

are overlapping in case of group control system.

8 Check transmission path, and remove the

cause. w The descriptions above, 1-8, are for EA, Eb

and EC.

(6846)

Start-up time over

The unit cannot finish start-up process within 4 minutes after power on.

1 Contact failure of indoor/ outdoor unit connecting wire 2 Diameter or length of indoor/

outdoor unit connecting wire is out of specified capacity.

7 2 or more outdoor units have

refrigerant address “0” . (In case of group control) 8 Noise has entered into power

supply or indoor/outdoor unit

connecting wire.

Page 44

OCH451B

Error Code

(1302)

(TH4:1102)

(TH32:1132)

Abnormal points and detection method

High pressure (High-pressure switch 63H operated)

Abnormal if high-pressure switch 63H (RP35-200)/63H1 or 63H2 (RP250) operated ( w ) during compressor operation. w RP35-140 (63H) : 4.15 MPa RP200 (63H) : 3.6 MPa RP250 (63H1) : 4.15 MPa (63H2) : 3.6 MPa

63H, 63H1, 63H2: High-pressure switch

High discharging temperature High comp. shell temperature

(1) Abnormal if discharge temperature thermistor (TH4) exceeds 125: or 110: continuously for 5 minutes. Abnormal if condenser/evaporator temperature thermistor (TH5) exceeds 40: during defrosting and discharge temperature thermistor (TH4) exceeds 110:.

(2) Abnormal if discharge superheat (Cooling: TH4 – TH5 / Heating: TH4 – TH6) increases. All the conditions in A or B are detected simultaneously for 10 minutes continuously after 6 minutes past from compressor start-up (including the thermostat indication or recovery from defrosting). <Condition A>

• Heating mode

• When discharge superheat is less than 70 deg.

• When the TH6 temp is more than the value obtained by TH7 – 5 deg.

• When the condensing temp of TH5 is less than 35:. <Condition B>

• During comp operation (Cooling and Heating)

• When discharge superheat is less than 80 deg in Cooling.

• When discharge superheat is less than 90 deg in Heating.

• When condensing temp of TH6 is more than –40:. (In Cooling only.) (3) Abnormal if comp. shell temperature

thermistor (TH32) exceeds 125°C or 110: continuously for 5 minutes.

Case

1 Short cycle of indoor unit 2 Clogged filter of indoor unit 3 Decreased airflow caused by

dirt of indoor fan

4 Dirt of indoor heat exchanger 5 Locked indoor fan motor 6 Malfunction of indoor fan motor 7 Defective operation of stop

valve (Not full open)

8 Clogged or broken pipe 9 Locked outdoor fan motor

0 Malfunction of outdoor fan

motor

1 Short cycle of outdoor unit 2 Dirt of outdoor heat exchanger 3 Decreased airflow caused by

defective inspection of outside temperature thermistor

(It detects lower temperature

than actual temperature.)

4 Disconnection or contact failure

of connector (63H) on outdoor controller board

5 Disconnection or contact failure

of 63H connection

6 Defective outdoor controller

board

7 Defective action of linear

expansion valve 8 Malfunction of fan driving circuit

1 Overheated compressor opera-

tion caused by shortage of

refrigerant 2 Defective operation of stop

valve

3 Defective thermistor 4 Defective outdoor controller

board 5 Defective action of linear

expansion valve

Judgment and action

1~6 Check indoor unit and repair defect.

7 Check if stop valve is fully open. 8 Check piping and repair defect.

9~2 Check outdoor unit and repair defect.

3 Check the detected temperature of outside

temperature thermistor on LED display. (SW2 on A-Control Service Tool : Refer to 11-10.)

4~6 Turn the power off and check F5 is displayed when the power is turned again. When F5 is displayed, refer to “Judgment

and action” for F5.

7 Check linear expansion valve. Refer to 11-6. 8 Replace outdoor controller board.

1 Check intake superheat. Check leakage of refrigerant. Charge additional refrigerant.

2 Check if stop valve is fully open. 34 Turn the power off and check if U3 is dis-

played when the power is on again.

When U3 is displayed, refer to “Judgement

and action” for U3. 5 Check linear expansion valve. Refer to 11-6.

Page 45

Thermistors

Open detection Short detection

Symbol Name

TH3 TH6 TH7 TH8

– 40 or below – 40 or below – 40 or below – 27 or below

90 or above 90 or above 90 or above

102 or above

Thermistor <Outdoor pipe>

Thermistor <Outdoor 2-phase pipe>

Thermistor <Outdoor>

Thermistor <Heatsink> RP35-140V

TH8 – 35 or below 170 or above

Internal thermistor RP100-250Y

Error Code

OCH451B

(TH4:5104)

(TH32:5132)

Abnormal points and detection method

Open/short circuit of discharge temperature thermistor (TH4) / comp. shell thermistor (TH32)

Abnormal if open (3: or less) or short (217: or more) is detected during compressor operation. (Detection is inoperative for 10 minutes of compressor starting process and for 10 minutes after and during defrosting.)

Case

1 Disconnection or contact failure of connector (TH4/TH32)

on the outdoor controller circuit board

2 Defective thermistor 3 Defective outdoor controller

circuit board

Judgment and action

1 Check connection of connector (TH4/TH32)

on the outdoor controller circuit board. Check breaking of the lead wire for thermistor (TH4/TH32). Refer to 11-9. 2 Check resistance value of thermistor (TH4/

TH32) or temperature by microcomputer. (Thermistor/TH4/TH32: Refer to 11-6.) (SW2 on A-Control Service Tool: Refer to 11-10.) 3 Replace outdoor controller board.

U4 (TH3:5105) (TH6:5107) (TH7:5106) (TH8:5110)

(4230)

Open/short of outdoor unit thermistors (TH3, TH6, TH7, and TH8)

Abnormal if open or short is detected during compressor operation. Open detection of thermistors TH3 and TH6 is inoperative for 10 seconds to 10 minutes after compressor starting and 10 minutes after and during defrosting. WCheck which unit has abnormality in its thermistor by switching the mode of SW2. (PAC-SK52ST) (Refer to 10-10.)

Temperature of heatsink

Abnormal if heatsink thermistor (TH8) detects temperature indicated below. RP35/ 50 ·········································· 84: RP60/ 71 ·········································· 77: RP100-140V ····································· 94: RP100-250Y ····································· 95:

1 Disconnection or contact failure

of connectors Outdoor controller circuit board: TH3, TH6/TH7 Outdoor power circuit board:

(

CN3

2 Defective thermistor 3 Defective outdoor controller

circuit board

1 The outdoor fan motor is

locked.

2 Failure of outdoor fan motor 3 Air flow path is clogged. 4 Rise of ambient temperature 5 Defective thermistor 6 Defective input circuit of

outdoor power circuit board 7 Failure of outdoor fan drive circuit

)

1 Check connection of connector (TH3,TH6/TH7)

on the outdoor controller circuit board.

Check connection of connector (CN3) on the

outdoor power circuit board.

Check breaking of the lead wire for thermistor

(TH3,TH6,TH7,TH8). Refer to 11-9.

2 Check resistance value of thermistor

(TH3,TH6,TH7,TH8) or check temperature by

microcomputer. (Thermistor/TH3,TH6,TH7,TH8: Refer to 11-6.) (SW2 on A-Control Service Tool: Refer to 11-10.) 3 Replace outdoor controller circuit board. WEmergency operation is available in case of abnormalities of TH3, TH6 and TH7. Refer to 11-8.

12 Check outdoor fan.

3 Check air flow path for cooling. 4 Check if there is something which causes

temperature rise around outdoor unit. (Upper limit of ambient temperature is 46:.) Turn off power, and on again to check if U5 is displayed within 30 minutes. If U4 is displayed instead of U5, follow the action to be taken for U4. 5 Check resistance value of thermistor (TH8)

or temperature by microcomputer. (Thermistor/TH8: Refer to 11-6.) (SW2 on A-Control Service Tool: Refer to 11-10.)

6 Replace outdoor power circuit board. 7 Replace outdoor controller circuit board.

Power module

Check abnormality by driving power module in case overcurrent is detected.

(4250)

(1520)

(UF or UP error condition)

Too low superheat due to low discharge temperature

Abnormal if discharge superheat is continuously detected less than or equal to -15: for 3 minutes even though linear expansion valve has minimum open pulse after compressor starts operating for 10 minutes.

1 Outdoor stop valve is closed. 2 Decrease of power supply voltage 3 Looseness, disconnection or

converse of compressor wiring connection

4 Defective compressor 5 Defective outdoor power circuit

board

1 Disconnection or loose connection of discharge temperature thermistor (TH4) 2 Defective holder of discharge

temperature thermistor

3 Disconnection or loose connection

of linear expansion valve’s coil 4 Disconnection or loose connection of linear expansion

valve’s connector 5 Defective linear expansion valve

1 Open stop valve. 2 Check facility of power supply. 3 Correct the wiring (U•V•W phase) to

compressor. Refer to 11-9 (Outdoor power

circuit board).

4 Check compressor referring to 11-6. 5 Replace outdoor power circuit board.

12 Check the installation conditions of

discharge temperature thermistor (TH4).

3 Check the coil of linear expansion valve. Refer to 11-7. 4 Check the connection or contact of LEV-A and

LEV-B on outdoor controller circuit board. 5 Check linear expansion valve. Refer to 11-6.

Page 46

Error Code

OCH451B

(4400)

Abnormal points and detection method

Outdoor fan motor

Abnormal if rotational frequency of the fan motor is not detected during DC fan motor operation. Fan motor rotational frequency is abnor mal if;

• 100 rpm or below detected continuously for 15 seconds at 20: or more outside air temperature.

• 50 rpm or below or 1500 rpm or more detected continuously for 1 minute.

Case

1 Failure in the operation of the DC fan motor 2 Failure in the outdoor circuit controller board

Judgment and action

1 Check or replace the DC fan motor. 2 Check the voltage of the outdoor circuit

controller board during operation. 3 Replace the outdoor circuit controller board. (when the failure is still indicated even after performing the action

1 above.)

(4220)

Overvoltage or voltage shortage and synchronous signal to main circuit

Abnormal if any of followings are detected during compressor operation;

• Decrease of DC bus voltage to 310V (RP35-140V only)

• Instantaneous decrease of DC bus voltage

RP35-140V : 200V RP100-140Y : 350V RP200/250Y : 400V

• Increase of DC bus voltage to

RP35-71V : 420V RP100-140V : 400V RP100-250Y : 760V

• Decrease of input current of outdoor unit to 0.1A only if operation frequency is more than or equal to 40Hz or compressor current is more than or equal to 6A.

* Check U9 error detail (SW2 all ON).

Refer to 11-10.

1 Decrease of power supply volt-

age

2 Disconnection of compressor

wiring

3 Defective 52C (RP100-140V) 4 Defective power circuit board (RP100-140V) 5 Disconnection or loose con-

nection of CN52C (RP35-71V, RP100-140V)

6 Defective PFC module of out-

door power board (RP35-71V)

7 Defective outdoor converter cir-

cuit board (RP100-140Y)

8 Defective 52C drive circuit of

outdoor controller circuit board (RP35-140V) 9 Disconnection or loose connection of CN5 on the outdoor power circuit board 0 Defective 52C drive circuit of

outdoor power circuit board (RP100-140Y) 1 Disconnection or loose connection of CN2 on the outdoor power circuit board

1 Check the facility of power supply. 2 Correct the wiring (U•V•W phase) to com-

pressor. Refer to 11-9 (Outdoor power circuit board).

3 Replace power circuit board. 4 Replace power circuit board.

(RP100-140V)

5 Check CN52C wiring.

6 Replace outdoor power circuit board.

(RP35-71V) 7 Replace outdoor converter circuit board.

(RP100-140Y)

8 Replace outdoor controller circuit board.

(RP35-140V)

9 Check CN5 wiring on the outdoor power cir-

cuit board. Refer to 11-9. 0 Replace outdoor power circuit board.

(RP100-140Y) 1 Check CN2 wiring on the outdoor power cir-

cuit board. Refer to 11-9.

(1504)

(4100)

Over heat protection

Abnormal if outdoor pipe thermistor (TH3) detects 70: or more during compressor operation.

Compressor overcurrent interruption (When compressor locked)

Abnormal if overcurrent of DC bus or compressor is detected within 30 seconds after compressor starts operating.

1 Defective outdoor fan (fan

motor) or short cycle of outdoor unit during cooling operation

2 Defective outdoor pipe ther-

mistor (TH3)

3 Defective outdoor controller

board

1 Stop valve is closed. 2 Decrease of power supply

voltage 3 Looseness, disconnection or

converse of compressor wiring connection

4 Defective compressor 5 Defective outdoor power board

6 Dip switch setting difference of

outdoor controller circuit board.

1 Check outdoor unit air passage.

23 Turn the power off and on again to check

the error code. If U4 is displayed, follow the

U4 processing direction.

1 Open stop valve. 2 Check facility of power supply.

3Correct the wiring (U•V•W phase) to

compressor. Refer to 11-9 (Outdoor power circuit board). 4 Check compressor. Refer to 11-6.

5 Replace outdoor power circuit board. 6 Check the dip switch setting of outdoor con-

troller circuit board. Refer to "Model Select" in "1) Function of switches" in 11-10.

Page 47

Error Code

OCH451B

(5300)

Abnormal points and detection method

Current sensor error

Abnormal if current sensor detects –1.0A to 1.0A during compressor operation. (This error is ignored in case of test run mode.)

Case

1 Disconnection of compressor

wiring

Defective circuit of current sensor on outdoor power circuit board

Judgment and action

1 Correct the wiring (U•V•W phase) to compres-

sor. Refer to 11-9 (Outdoor power circuit board).

2 Replace outdoor power circuit board.

(1300)

(4210)

Low pressure

Abnormal if the following conditions are detected for continuously 3 minutes after compressor starts heating operating for 10 minutes.

1. Heating mode Detection mode 1 TH7-TH3[4: and TH5-Indoor room temperature[2: Detection mode 2 TH7-TH3[2:and TH5-Indoor room temperature[4: and TH2-Indoor room temperature[4: Detection mode 3 TH7-TH3[4: and TH5-Indoor room temperature[2: and TH4-TH5]20:

2. Cooling mode

TH6-TH7[2: and TH3-TH7[2: and Indoor room temperature - Indoor liquid pipe temperature (TH2)[5:

Thermistor TH3:

Compressor overcurrent interruption

Abnormal if overcurrent DC bus or compressor is detected after compressor starts operating for 30 seconds.

Remote controller transmission error (E0)/signal receiving error (E4)

1 Abnormal if main or sub remote control-

ler cannot receive normally any transmission from indoor unit of refrigerant

address “0” for 3 minutes. (Error code : E0) 2 Abnormal if sub remote controller could

not receive any signal for 2 minutes.

(Error code: E0) 1 Abnormal if indoor controller board can

not receive normally any data from

remote controller board or from other

indoor controller board for 3 minutes.

(Error code: E4) 2 Indoor controller board cannot receive

any signal from remote controller for 2

minutes. (Error code: E4)

Outdoor liquid pipe temperature TH4: Discharge temperature TH5:

Indoor cond./eva. temperature

TH6:

Outdoor 2-phase pipe temperature

TH7: Outdoor temperature

1 Stop valve of outdoor unit is

closed during operation.

2 Leakage or shortage of refriger-

ant

3 Malfunction of linear expansion

valve 4Clogging with foreign objects in refrigerant circuit Clogging occurs in the parts which become below freez-

ing point when water enters in

refrigerant circuit.

1 Stop valve of outdoor unit is

closed.

2 Decrease of power supply volt-

age

3 Looseness, disconnection or

converse of compressor wiring

connection

4 Defective fan of indoor/outdoor

units

5 Short cycle of indoor/outdoor

units

6 Defective input circuit of out-

door controller board

7 Defective compressor 8 Defective outdoor power circuit

board

9 Dip switch setting difference of

outdoor controller circuit board

1 Contact failure at transmission

wire of remote controller

2 All remote controllers are set

as “sub” remote controller.

In this case, E0 is displayed

on remote controller, and E4

is displayed at LED (LED1,

LED2) on the outdoor controller

circuit board.

3 Miswiring of remote controller 4 Defective transmitting receiving

circuit of remote controller

5 Defective transmitting receiv-

ing circuit of indoor controller

board of refrigerant address “0”

6 Noise has entered into the

transmission wire of remote

controller.

1 Check stop valve. 2 Check intake superheat.

Check leakage of refrigerant. Check additional refrigerant.

3 Check linear expansion valve.

Refer to 11-6. 4 After recovering refrigerant, remove water

from entire refrigerant circuit under vacuum

more than 1 hour.

1 Open stop valve. 2 Check facility of power supply. 3 Correct the wiring (U•V•W phase) to com-

pressor. Refer to 11-9 (Outdoor power circuit board).

4 Check indoor/outdoor fan. 5 Solve short cycle. 6 Replace outdoor controller circuit board. 7 Check compressor. Refer to 11-6.

W Before the replacement of the outdoor controller

circuit board, disconnect the wiring to compressor from the outdoor power circuit board and check the output voltage among phases, U, V, W, during test run. No defect on board if voltage among phases (U-V, V-W and W-U) is same. Make sure to perform the voltage check with same performing frequency.

8Replace outdoor power circuit board 9 Check the dip switch setting of outdoor con-

troller circuit board

1 Check disconnection or looseness of indoor

unit or transmission wire of remote controller.

2 Set one of the remote controllers “main” if

there is no problem with the action above.

3 Check wiring of remote controller.

• Total wiring length: max. 500m (Do not use cable o 3 or more.)

• The number of connecting indoor units: max. 16 units

• The number of connecting remote controller: max. 2 units

When it is not the above-mentioned problem of

1~3 4 Diagnose remote controllers.

a) When “RC OK” is displayed, remote con-

trollers have no problem. Turn the power off, and on again to check. If abnormality generates again, replace indoor controller board.

b) When “RC NG” is displayed, replace

remote controller.

When “RC E3” or “ERC 00-66” is displayed, noise may be causing abnormality.

* If the unit is not normal after replacing indoor con-

troller board in group control, indoor controller board of address “0” may be abnormal.

Page 48

Error Code

OCH451B

(6840)

Abnormal points and detection method

Remote controller control board

1 Abnormal if data cannot be normally

read from the nonvolatile memory of the

remote controller control board. (Error code: E1) 2 Abnormal if the clock function of remote

controller cannot be normally operated. (Error code: E2)

Remote controller transmission error (E3)/signal receiving error (E5)

1 Abnormal if remote controller could not

find blank of transmission path for 6 sec-

onds and could not transmit. (Error code: E3) 2 Remote controller receives transmitted

data at the same time, compares the

data, and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E3)

1 Abnormal if indoor controller board could

not find blank of transmission path. (Error code: E5) 2 Indoor controller board receives trans-

mitted data at the same time, compares

the data, and when detecting it, judges

different data to be abnormal 30 continuous times. (Error code: E5)

Indoor/outdoor unit communication error (Signal receiving error)

1 Abnormal if indoor controller board could

not receive any signal normally for 6

minutes after turning the power on. 2 Abnormal if indoor controller board could

not receive any signal normally for 3

minutes. 3 Consider the unit as abnormal under

the following condition. When 2 or more

indoor units are connected to an out-

door unit, indoor controller board could

not receive a signal for 3 minutes from

outdoor controller circuit board, a signal

which allows outdoor controller circuit

board to transmit signals.

Indoor/outdoor unit communication error (Transmitting error)

Abnormal if “1” receiving is detected 30 times continuously though indoor controller board has transmitted “0”.

Case

1 Defective remote controller 1 Replace remote controller.

1 2 remote controller are set as

“main.” (In case of 2 remote controllers)

2 Remote controller is connected

with 2 indoor units or more.

3 Repetition of refrigerant

address

4 Defective transmitting receiving

circuit of remote controller

5 Defective transmitting receiving

circuit of indoor controller board

6 Noise has entered into trans-

mission wire of remote controller.

1 Contact failure, short circuit or

miswiring (converse wiring) of indoor/outdoor unit connecting wire

2 Defective transmitting receiv-

ing circuit of outdoor controller circuit board.

3 Defective transmitting receiv-

ing circuit of indoor controller board.

4 Noise has entered into indoor/

outdoor unit connecting wire.

5 Defective fan motor 6 Defective rush current resistor

of outdoor power circuit board

1 Defective transmitting receiving

circuit of indoor controller board

2 Noise has entered into power

supply.

3 Noise has entered into outdoor

control wire.

1 Set a remote controller to main, and the

other to sub.

2 Remote controller is connected with only one

indoor unit.

3 The address changes to a separate setting. 4~6Diagnose remote controller.

a) When “RC OK” is displayed, remote con Turn the power off, and on again to check.

When becoming abnormal again, replace b) When “RC NG” is displayed, replace c)

wCheck LED display on outdoor controller

circuit board. (Connect A-Control service tool (PAC-SK52ST)) Refer to EA~EC item if LED displays EA~AC.

1 Check disconnecting or looseness of indoor

/outdoor unit connecting wire of indoor unit or outdoor unit.

Check all the units in case of twin/triple/

quadruple indoor unit system. 2~4 If abnormality generates again, replace

circuit board.

w

Other indoor controller board may have

defect in case of twin/triple/quadruple indoor

unit system. 5 Turn the power off, and detach fan motor

from connector (CNF1, 2). Then turn the

power on again. If abnormality is not displayed, replace fan

motor. If abnormality is displayed, replace outdoor

controller circuit board. 6 Check the rush current resistor on outdoor

power circuit board with tester. If open is

detected, replace the power circuit board.

1-3 Turn the power off, and on again to check.

Judgment and action

trollers have no problem.

indoor controller board. remote controller.

When “RC E3” or “ERC 00-66” is displayed, noise may be causing abnormality.

Turn the power off, and on again to check. indoor controller board or outdoor controller

If abnormality generates again, replace indoor controller board.

(6840)

(6841)

Indoor/outdoor unit communication error (Signal receiving error) (Outdoor unit)

Abnormal if outdoor controller circuit board could not receive anything normally for 3 minutes.

Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit)

1 Abnormal if “0” receiving is detected 30

times continuously though outdoor controller circuit board has transmitted “1”.

2 Abnormal if outdoor controller circuit

board could not find blank of transmission path for 3 minutes.

1 Contact failure of indoor/out-

door unit connecting wire

2 Defective communication circuit

of outdoor controller circuit board

3 Defective communication circuit

of indoor controller board

4 Noise has entered into indoor/

outdoor unit connecting wire.

1 Indoor/ outdoor unit connecting

wire has contact failure.

2 Defective communication circuit

of outdoor controller circuit board

3 Noise has entered power supply. 4 Noise has entered indoor/ out-

door unit connecting wire.

1 Check disconnection or looseness of indoor/

outdoor unit connecting wire of indoor or out-

door units.

2~4 Turn the power off, and on again to

check. Replace indoor controller board or outdoor controller circuit board if abnormality is displayed again.

1 Check disconnection or looseness of indoor/

outdoor unit connecting wire. 2~4 Turn the power off, and on again to

check. Replace outdoor controller circuit board if abnormality is displayed again.

Page 49

Error Code

1 2 3 4 5 6

ON OFF

1 2 3 4 5 6

ON OFF

1 234 5 6

ON OFF

1 2 3 4 5 6

ON OFF

A-Control Service Tool SW2 setting

Temperature display of indoor liquid pipe Indoor 1

Temperature display of indoor liquid pipe Indoor 2

Temperature display of indoor condenser/ evaporator pipe Indoor 1

Temperature display of indoor condenser/ evaporator pipe Indoor 2

OCH451B

(6607

6608)

(0403)

Abnormal points and detection method

Non defined error code

This code is displayed when non defined error code is received.

Serial communication error

1Abnormal if serial communication between outdoor controller circuit board and outdoor power circuit board is defective.

2 Abnormal if communication between outdoor controller circuit board and M-NET board is not available.

Pipe temperature

<Cooling mode> Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes after compressor start and 6 minutes after the liquid or condenser/evaporator pipe is out of cooling range. Note 1)

It takes at least 9 minutes to detect.

Note 2) Abnormality P8 is not detected in

drying mode.

Cooling range : Indoor pipe temperature

(TH2 or TH5) – intake temperature (TH1) [ -3 deg

TH: Lower temperature between liquid pipe

temperature and condenser/

evaporator temperature <Heating mode>

When 10 seconds have passed after the compressor starts operation and the hot adjustment mode has finished, the unit is detected as abnormal when condenser/ evaporator pipe temperature is not in heating range within 20 minutes.

Note 3) It takes at least 27 minutes to

detect abnormality.

Note 4) It excludes the period of defrosting

(Detection restarts when defrosting mode is over)

Heating range : 3 deg [ (Condenser/

Evaporator temperature(TH5) – intake temperature(TH1))

Case

1 Noise has entered transmission

wire of remote controller.

2 Noise has entered indoor/ out-

door unit connecting wire.

3 Outdoor unit is not a series of

power-inverter.

4 Model name of remote control-

ler is PAR-S25A.

1 Breaking of wire or contact failure of connector CN2

between the outdoor controller circuit board and the outdoor

power circuit board 2 Breaking of wire or contact failure of connector CN4

between the outdoor controller

circuit board and the outdoor

power circuit board 3 Defective communication circuit

of outdoor power circuit board 4 Defective communication circuit

of outdoor controller circuit board

for outdoor power circuit board 1 Breaking of wire or contact

failure of connector between

outdoor controller circuit board

and M-NET board 2 Contact failure of M-NET board

power supply line 3 Noise has entered into M-NET

transmission wire.

1 Slight temperature difference

between indoor room temperature and pipe <liquid or condenser / evaporator> temperature thermistor

• Shortage of refrigerant

• Disconnected holder of pipe <liquid or condenser /

evaporator> thermistor

• Defective refrigerant circuit

2 Converse connection of extension pipe (on plural units

connection) 3 Converse wiring of indoor/ outdoor unit connecting wire

(on plural units connection) 4 Defective detection of indoor

room temperature and pipe

<condenser / evaporator> temperature thermistor 5 Stop valve is not opened completely.

Judgment and action

12 Turn the power off, and on again to check. Replace indoor controller board or outdoor controller circuit board if abnormality is displayed again. 3 Replace outdoor unit with power-inverter type

outdoor unit.

4 Replace remote controller with MA remote

controller.

12 Check connection of each connector CN2

and CN4 between the outdoor controller circuit board and the outdoor power circuit board.

3 Replace outdoor power circuit board. 4 Replace outdoor controller circuit board.

1 Check disconnection, looseness, or breaking of

connection wire between outdoor controller circuit board (CNMNT) and M-NET board (CN5).

2 Check disconnection, looseness, or breaking of

connection wire between outdoor controller circuit board (CNMNT) and M-NET board (CND).

3 Check M-NET transmission wiring method.

1~4 Check pipe <liquid or condenser /

evaporator> temperature with room temperature display on remote

controller and outdoor controller circuit

board.

Pipe <liquid or condenser / evaporator>

temperature display is indicated by

setting SW2 of outdoor controller circuit

board as follows.

Conduct temperature check with outdoor controller circuit board after connecting

(

‘A-Control Service Tool (PAC-SK52ST)’.

)

23Check converse connection of extension pipe or converse wiring of indoor/outdoor unit connecting wire.

Page 50

<M-NET communication error>

OCH451B

Error Code

(6600)

Abnormal points and detection method

Address duplicate definition

This error is displayed when transmission from the units of same address is detected. Note) The address and attribute displayed

at remote controller indicate the controller that detected abnormality.

(Note) “Indoor unit” in the text indicates M-NET board in outdoor unit.

Case Judgment and action

1 There are 2 or more same

address of controller of outdoor unit, indoor unit, FRESH MASTER, or LOSSNAY.

2 Noise has entered into trans-

mission signal and signal was transformed.

Search the unit with same address as abnormality occurred. If the same address is found, shut the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more after the address is corrected, and turn the power on again. Check transmission waveform or noise on transmission wire.

(6602)

(6603)

Hard ware error of transmission processor

Transmission processor intended to transmit “0”, but “1” appeared on transmission wire. Note) The address and attribute display at

remote controller indicate the controller that detected abnormality.

BUS BUSY

1. Overtime error by collision damage Abnormal if transmitting is not possible

for 8-10 minutes continuously because of collision of transmission.

2. Data could not reach transmission wire for 8-10 minutes continuously because of noise or etc.

Note) The address and attribute displayed

at remote controller indicate the controller that detected abnormality.

Error is detected if waveform is transformed when wiring works of transmission wire of outdoor unit, indoor unit, FRESH MASTER or LOSSNAY are done, or polarity is changed with the power on and transmission data collide each other.

Defective transmitting receiving circuit of transmission processor

3 Transmission data is changed

by the noise on transmission.

1 Transmission processor could

not transmit signal because short cycle voltage of noise and the like have entered into transmission wire continuously.

Transmission quantity has increased and transmission is not possible because there was wiring mistake of terminal block for transmission wire (TB3) and terminal block for central con-

trol (TB7) in outdoor unit. 3 Transmission are mixed with others and occupation rate

on transmission wire rose

because of defective repeater

(a function to connector or dis-

connect transmission of control

and central control system) of

outdoor unit, then abnormality

is detected.

1 If the works of transmission wire is done

with the power on, shut off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more, and turn the power on again.

2 Check transmission waveform or noise on

transmission wire.

1 Check if transmission wire of indoor unit,

FRESH MASTER, LOSSNAY, or remote controller is not connected to terminal block for central control (TB7) of outdoor unit.

2 Check if transmission wire of indoor unit,

FRESH MASTER or LOSSNAY is not connected to terminal block for transmission wire of outdoor unit.

3 Check if terminal block for transmission wire

(TB3) and terminal block for central control (TB7) is not connected.

4 Check transmission waveform or noise on

transmission wire.

(6606)

Communication error with communication processor

Defective communication between unit processor and transmission processor Note) The address and attribute display at

remote controller indicate the controller that detected abnormality.

1 Data of transmission proces-

sor or unit processor is not

transmitted normally because

of accidental trouble such as

noise or thunder surge. 2 Address forwarding from unit

processor is not transmitted

normally because of defective

transmission processor hard-

ware.

Turn off the power supply of outdoor unit, indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more, and turn the power on again. System returns normally if abnormality was accidental malfunction. If the same abnormality generates again, abnormality-generated controller may be defective.

Page 51

Error Code

OCH451B

(6607)

Abnormal points and detection method

NO ACK signal

1. Transmitting side controller detects abnormal if a message was transmitted but there is no reply (ACK) that a message was received. Transmitting side detects abnormality every 30 seconds, 6 times continuously.

Note) The address and attribute displayed

at remote controller indicate the controller that did not reply (ACK).

2. If displayed address or attribute is out door unit, indoor unit detects abnormality when indoor unit transmits signal to outdoor unit and there was no reply (ACK).

3. If displayed address or attribute is indoor unit, remote controller detects abnormality when remote controller transmits signal to indoor unit and there was no reply (ACK).

Case Judgment and action

Common factor that has no relation with abnormality source 1 The unit of former address

does not exist as address switch has changed while the unit was energized.

2 Extinction of transmission wire

voltage and signal is caused by over-range transmission wire.

• Maximum distance

• Remote controller line (12m)

3 Extinction of transmission wire

voltage and signal is caused by type-unmatched transmission wire.

......

Type

With shield wire CVVS, CPEVS With normal wire (no shield) VCTF, VCTFK, CVV CVS, VVR, VVF, VCT

Diameter

4 Extinction of transmission wire

voltage and signal is caused by over-numbered units.

5 Accidental malfunction of

abnormality-detected controller (noise, thunder surge)

6 Defective of abnormality-gen-

erated controller

1 Contact failure of transmission

wire of outdoor unit or indoor unit

2 Disconnection of transmission

connector (CN2M) of outdoor unit

3 Defective transmitting receiving

circuit of outdoor unit or indoor unit

1 During group operation with

indoor unit of multi- refrigerant system, if remote controller transmits signal to indoor unit while outdoor unit power supply of one refrigerant system is turned off or within 2 minutes of restart, abnormality is detected.

2 Contact failure of transmission

wire of remote controller or indoor unit

3 Disconnection of transmission

connector (CN2M) of indoor unit

4 Defective transmitting receiving

circuit of indoor unit or remote controller

.....

.......

200m

1.25mm2 or more

Always try the followings when the error “A7” occurs.

1 Turn off the power supply of outdoor

unit, indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more, and turn the power on again. If malfunction was accidental, the unit returns to normal.

2 Check address switch of abnormality-gener-

ated address.

3 Check disconnection or looseness of abnor-

mality-generated or abnormality-detected transmission wire (terminal block and connector)

4 Check if tolerance range of transmission wire

is not exceeded.

5 Check if type of transmission wire is correct

or not.

If there were some trouble of 1-5 above, repair the defect, then turn off the power supply of outdoor unit, indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more, and turn the power on again.

• If there was no trouble with 1-5 above in single refrigerant system (one outdoor unit), controller of displayed address or attribute is defective.

• If there was no trouble with 1-5 above in different refrigerant system (2 or more outdoor units), judge with 6.

6 If address of abnormality source is the

address that should not exist, there is the unit that memorizes nonexistent address information. Delete useless address information with manual setting function of remote controller.

Only the system FRESH MASTER or

LOSSNAY are connected to, or the system that is equipped with group setting of different refrigerant system.

If there was no trouble with 1-6 above, replace the controller board of displayed address or attribute. If the unit does not return normally, multi-controller board of outdoor unit may be defective (repeater circuit). Replace multi-controller board one by one to check if the unit returns normally.

Continued to the next page.

Page 52

From the previous page.

OCH451B

Error Code

Abnormal points and detection method

4. If displayed address or attribute is remote controller, indoor unit detects abnormality when indoor unit transmits signal to remote controller and there was no reply (ACK).

Case Judgment and action

1 During group operation with

indoor unit of multi- refrigerant system, if indoor unit transmit signal to remote controller while outdoor unit power supply of one refrigerant system is turned off or within 2 minutes of restart, abnormality is detected.

2 Contact failure of transmission

wire of remote controller or indoor unit

3 Disconnection of transmission

connector (CN2M) of indoor unit

4 Defective transmitting receiving

circuit of indoor unit or remote controller

Same as mentioned in “A7” of the previous page.

(6607)

5. If displayed address or attribute is

FRESH MASTER, indoor unit detects abnormality when indoor unit transmits signal to FRESH MASTER and there was no reply (ACK).

6. If displayed address or attribute is

LOSSNAY, indoor unit detects abnormality when indoor unit transmits signal to LOSSNAY and there was no reply (ACK).

1 During sequential operation

of indoor unit and FRESH MASTER of other refrigerant system, if indoor unit transmits signal to FRESH MASTER while outdoor unit power supply of same refrigerant system with FRESH MASTER is turned off or within 2 minutes of restart, abnormality is detected.

2 Contact failure of transmission

wire of indoor unit or FRESH MASTER

3 Disconnection of transmission

connector (CN2M) of indoor unit or FRESH MASTER

4 Defective transmitting receiving

circuit of indoor unit or FRESH MASTER

1 If the power supply of

LOSSNAY is off, indoor unit detects abnormality when it transmits signal to LOSSNAY.

2 During sequential operation

of indoor unit and LOSSNAY of other refrigerant system, if indoor unit transmits signal to LOSSNAY while outdoor unit power supply of same refrigerant system with LOSSNAY is turned off or within 2 minutes of restart, abnormality is detected.

3 Contact failure of transmis-

sion wire of indoor unit of LOSSNAY

4 Disconnection of transmission

connector (CN2M) of indoor unit

5 Defective transmitting receiv-

ing circuit of indoor unit or LOSSNAY

7. If displayed address or attribute is non-

existent.

1 The unit of former address

does not exist as address switch has changed while the unit was energized.

2 Abnormality is detected

when indoor unit transmits signal because the address of FRESH MASTER and LOSSNAY are changed after sequential operation of FRESH MASTER and LOSSNAY by remote controller.

Page 53

Error Code

OCH451B

(6608)

Abnormal points and detection method

M-NET NO RESPONSE

Abnormal if a message was transmitted and there were reply (ACK) that message was received, but response command does not return. Transmitting side detects abnormality every 30 seconds, 6 times continuously. Note) The address and attribute displayed

at remote controller indicate the controller that did not reply (ACK).

Case Judgment and action

1 Transmitting condition is

repeated fault because of noise and the like.

2 Extinction of transmission wire

voltage and signal is caused by over-range transmission wire.

• Maximum distance

• Remote controller line (12m)

3 Extinction of transmission wire

voltage and signal is caused by type-unmatched transmission wire.

........

Type.

With shield wire CVVS, CPEVS With normal wire (no shield) VCTF, VCTFK, CVV CVS, VVR, VVF, VCT

Diameter

4 Accidental malfunction of

abnormality-generated

controller

.....

......

200m

1.25mm2 or more

10-5. TROUBLESHOOTING BY INFERIOR PHENOMENA

Phenomena

1. Remote controller display does not work.

1DC12V is not supplied to remote controller. (Power supply display is not indicated on LCD.) 2DC12~15V is supplied to remote controller, however,

no display is indicated.

• “PLEASE WAIT” is not displayed.

• “PLEASE WAIT” is displayed.

Factor Countermeasure

1 Check transmission waveform or noise on

transmission wire.

2 Turn off the power supply of outdoor unit

and indoor unit and FRESH MASTER or LOSSNAY at the same time for 2 minutes or more, and turn the power on again. If malfunction was accidental, the unit returns to normal. If the same abnormality generates again, controller of displayed address and attribute may be defective.

1Check LED2 on indoor controller board. (1) When LED2 is lit. Check the remote controller wiring for breaking or contact failure. (2) When LED2 is blinking. Check short circuit of remote controller wiring. (3) When LED2 is not lit. Refer to phenomena No.3 below. 2Check the following.

• Failure of remote controller if “PLEASE WAIT” is not displayed

• Refer to phenomena No.2 below if “PLEASE WAIT” is displayed.

2. “PLEASE WAIT” display is remained

3. When pressing the remote controller

on the remote controller.

operation switch, the OPERATION display is appeared but it will be turned off soon.

1At longest 2 minutes after the power supply “PLEASE

WAIT” is displayed to start up.

2Communication error between the remote controller

and indoor unit

3Communication error between the indoor and outdoor

unit

4Outdoor unit protection device connector is open.

1After cancelling to select function from the remote

controller, the remote controller operation switch will be not accepted for approx. 30 seconds.

1Normal operation 2Self-diagnosis of remote controller 3”PLEASE WAIT” is displayed for 6 min-

utes at most in case of indoor/outdoor unit communication error. Check LED3 on

indoor controller board. (1) When LED3 is not blinking. Check indoor/outdoor connecting wire for Miswiring. (Converse wiring of S1 and S2, or break of S3 wiring.) (2) When LED3 is blinking. Indoor/outdoor connecting wire is nor mal. 4Check LED display on outdoor controller circuit board. Refer to 11-10. Check protection device connector (63H) for contact failure. Refer to 11-9.

1Normal operation

Page 54

Phenomena

OCH451B

4. Even controlling by the wireless remote controller, no beep is heard and the unit does not start operating. Operation display is indicated on wireless remote controller.

Factor

1The pair number settings of the wireless remote controller and indoor controller board are mismatched.

Countermeasure

1Check the pair number settings.

5. When operating by the wireless remote controller, beep sound is heard, however, unit does not start operating.

6. Remote controller display works

normally and the unit performs cool

ing operation, however, the capacity cannot be fully obtained. (The air does not cool well.)

7. Remote controller display works normally and the unit performs heating operation, however, the capacity cannot be fully obtained.

1No operation for 2 minutes at most after the power

supply ON.

2Local remote controller operation is prohibited.

• Remote controlling adaptor is connected to CN32 on the indoor controller board.

• Local remote controller operation is prohibited by centralised controller etc. since it is connected to MELANS.

3Phenomena of No.2.

1Refrigerant shortage

2Filter clogging 3Heat exchanger clogging 4Air duct short cycle

1Linear expansion valve fault

Opening cannot be adjusted well due to linear expan sion valve fault.

2Refrigerant shortage 3Lack of insulation for refrigerant piping 4Filter clogging 5Heat exchanger clogging 6Air duct short cycle 7Bypass circuit of outdoor unit fault

1Normal operation 2Normal operation

3Check the phenomena No.2.

1• If refrigerant leaks, discharging tempera-

ture rises and LEV opening increases. Inspect leakage by checking the temperature and opening.

• Check pipe connections for gas leakage. 2Open intake grille and check the filter.

Clean the filter by removing dirt or dust on it.

3• If the filter is clogged, indoor pipe tem-

perature rises and discharging pressure increases. Check if heat exchanger is clogged by inspecting discharging pressure.

• Clean the heat exchanger.

4Remove the blockage.

1• Discharging temperature and indoor heat

exchanger temperature does not rise.

Inspect the failure by checking discharg-

ing pressure.

• Replace linear expansion valve. 2• If refrigerant leaks, discharging tempera

ture rises and LEV opening increases.

Inspect leakage by checking the tem-

perature and opening.

• Check pipe connections for gas leakage.

3Check the insulation. 4Open intake grille and check the filter.

Clean the filter by removing dirt or dust on it.

5• If the filter is clogged, indoor pipe tem-

perature rises and discharging pressure increases. Check if heat exchanger is clogged by inspecting discharging pressure.

• Clean the heat exchanger.

6Remove the blockage. 7Check refrigerant system during operation.

8. 1For 3 minutes after temperature adjuster turns off, the compressor will not start operating even if temperature adjuster is turned on.

2For 3 minutes after temperature

adjuster turns on, the compressor will not stop operating even if temperature adjuster is turned off.

(Compressor stops operating

immediately when turning off by the remote controller.)

12Normal operation

(For protection of compressor)

12Normal operation

Page 55

How long is “PLEASE WAIT”

kept being displayed on the

remote controller?

6 minutes or more

2 minutes or less

2 to 6 minutes

YES

Are any error codes

displayed on the

remote controller?

Are any error codes

displayed on the LED?

Symptoms: “PLEASE WAIT” is kept being displayed on the remote controller.

Check the display time of “PLEASE WAIT”

after turning on the main power.

•

“PLEASE WAIT” will be displayed during the start-up

diagnosis after turning

on the main power.

• Normal. The start-up diagnosis will

be over in around 2 minutes.

• Miswiring of indoor/ outdoor connecting wire

• Breaking of indoor/ outdoor connecting wire (S3)

• Defective indoor controller board

• Defective outdoor controller circuit board

• Refer to “Self-diagnosis action table” in order to solve the trouble.

• In case of communication errors, the display of remote controller may not match the LED display of the outdoor unit.

• Defective indoor controller board

• Defective remote controller

Check the LED display of the outdoor controller circuit board.

Diagnosis flow Cause

Inspection method and troubleshooting

OCH451B

Page 56

AC 198V to AC 264V?

DC 12V to DC 16V?

YES

Check the voltage between S1 and S2 on the terminal block (TB4) of the indoor unit which is used to connect the indoor unit and the outdoor unit.

Check the voltage among L(L3) and N on the terminal block (TB1) of the outdoor power circuit board.

Check the voltage of indoor controller board (CN2D).

Check the voltage of the unit after removing the indoor power board (CN2S).

Check the voltage between S1 and S2 on the terminal block (TB1) of the outdoor unit which is used to connect the indoor unit and the outdoor unit.

•

Troubles concerning power supply.

• Check the power wiring to the outdoor unit.

• Check the breaker.

• Bad wiring of the outdoor controller board.

• The fuses on the outdoor controller circuit board are blown.

• Check the wiring of the outdoor unit.

• Check if the wiring is bad. Check if the fuses are blown.

The fuses on the outdoor controller circuit board will be blown when the indoor /outdoor connecting wire short-circuits.

• Bad wiring of the outdoor controller board.

• The fuses on the outdoor controller circuit board are blown.

• Check if miswiring, breaking

or poor contact is causing this problem. Indoor/outdoor connecting wire is polarized 3-core type. Connect the indoor unit and the outdoor unit by wiring each pair of S1, S2 and S3 on the both side of indoor/outdoor terminal blocks.

• Defective indoor power board

• Replace the indoor power board.

• Defective indoor controller board

• Replace the indoor controller board.

• Miswiring, breaking or poor connection of in door/outdoor connecting wire

•

Check if there is miswiring

or breaking of wire.

Symptoms: Nothing is displayed on the remote controller 

Diagnosis flow Cause

Inspection method and

troubleshooting

LED display of the indoor

controller board

LED1 :

LED2 :

LED3 :

OCH451B

Page 57

AC 198V to AC 264V?

Are there looseness or

disconnection of the indoor/

outdoor connecting wire?

Is anything displayed?

DC 17V to DC 28V?

Is “E8” displayed?

Can all the indoor

unit be operated?

Check the voltage between S2 and S3 on the terminal block of the outdoor unit.

YES

Not lighting.

Blinking.

YES

Not displayed.

Displayed.

YES

Check the voltage between S1 and

S2 on the terminal block (TB4)

of the

indoor unit which is used to connect the indoor unit and the

outdoor unit.

Check the refrigerant address of the outdoor unit. (SW1-3 to 1-6)

Check the looseness or disconnection of the indoor/outdoor connecting wire.

Check the LED display of the outdoor unit after turning on the main power again.

Can the unit be restarted?

•

Breaking or poor contact of the indoor/outdoor connecting wire

• Fix the breaking or poor contact of the indoor/outdoor

connecting wire.

• Defective outdoor controller circuit board

• Replace the outdoor

controller circuit board.

• Normal. Only the unit which has the refrigerant address “0” supplies power to the remote controller.

• Set the refrigerant

address to “0”. In case of the multiple grouping system, recheck the refrigerant address again.

• Defective indoor power board

• Replace the indoor

power board.

• Defective outdoor power circuit board

• Replace the outdoor

power circuit board.

• Defective indoor controller board

•

Replace the indoor controller

board of the indoor unit which

doesn’t operate.

• Defective outdoor controller circuit board

• Replace the outdoor

controller circuit board.

• Influence of electromagnetic noise

• Not abnormal. There may be the influence

of electromagnetic noise.

Check the transmission wire

and get rid of the causes.

Symptoms: Nothing is displayed on the remote controller 

Diagnosis flow Cause

Inspection method and troubleshooting

LED display of the indoor controller board LED1 : LED2 : LED3 : or

Check the status of the indoor controller board LED3 display.

Is the refrigerant address “0”?

YES

Is “EA” or “Eb” displayed?

OCH451B

Page 58

DC 10V to DC 16V?

YES

Lighting

Blinking

Lighting

Blinking

Check the voltage of the terminal block (TB6) of the remote controller.

Check the status of the LED2 after disconnecting the remote controller wire from the terminal block (TB5) of the indoor unit.

• Defective remote controller

• Replace the

remote controller.

• Breaking or poor contact of the remote controller wire

• Check if there is breaking

or poor contact of the remote controller wire. Check the voltage of the terminal block (TB5) connecting the remote controller wire.

If it is not between DC 10V

and DC16V, the indoor controller board must be defective.

• The remote controller wire short-circuits

• Check if the remote

controller wire is short-circuited.

• Defective indoor controller board

• Replace the indoor

controller board.

Diagnosis flow Cause

Inspection method and troubleshooting

Symptoms: Nothing is displayed on the remote controller 

LED display of the indoor controller board LED1 : LED2 : or LED3 : —

Check the status of the LED2.

OCH451B

Page 59



The operating display of remote

controller does not come on.

Phone Calls From Customers How to Respond Note

 Check if power is supplied to air conditioner. Nothing appears on the display unless power is

supplied.  Unit cannot be restarted for a while after it’s stopped.

 Wait around 3 minutes to restart unit.

The air conditioner is in a state of being protected

by the microcomputer’s directive. Once the

compressor is stopped, the unit cannot be

restarted for 3 minutes. This control is also applied

when the unit is turned on and off by remote

controller.  Error code appears and blinks

on the display of remote controller.

Refer to “SELF-DIAGNOSIS ACTION TABLE”. Check if servicing is required for the error.

Display time of “FILTER” depends on the model. Long life filter: 2500 hrs. Standard filter: 100 hrs.

 Error code will be displayed if any protection

devices of the air conditioner are actuated.

What is error code?



“PLEASE WAIT” is displayed

on the screen.

 Wait around 2 minutes.

An automatic startup test will be conducted for

2 minutes when power is supplied to the air

conditioner. “PLEASE WAIT” will be kept being

displayed while that time.



“FILTER” is displayed on the

screen.

 This indicates that it is time to clean the air filters. Clean the air filters. Press the FILTER button on the remote controller twice to clear “FILTER” from the display. See the operation manual that came with the product for how to clean the filters.



“STANDBY” is displayed on the

screen.

 This is displayed when the unit starts HEAT

operation, when the thermostat puts the

compressor in operation mode, or when the

outdoor unit ends DEFROST operation and

returns to HEAT operation.

The display will automatically disappear around

10 minutes later.

While “STANDBY” is displayed on the remote

controller, the airflow amount will be restricted

because the indoor unit’s heat exchanger is not

fully heated up. In addition to that, the up/down

vane will be automatically set to horizontal blow

in order to prevent cold air from directly blowing

out to human body. The up/down vane will return

to the setting specified by the remote controller

when “STANDBY” is released.



“DEFROST” is displayed on the screen. (No air comes out of the unit.)

 The outdoor unit gets frosted when the outside temperature is low and the humidity is high. “DEFROST” indicates the DEFROST operation is being performed to melt this frost. The DEFROST operation ends in around 10 minutes (at most 15 minutes). During the DEFROST operation, the indoor unit’s heat exchanger becomes cold, so the fan is stopped. The up/down vane will be automatically set to horizontal blow in order to prevent cold air from directly blowing out to human body. The display will turn into “STANDBY” when DEFROST operation ends.

Unit does not operate at all.

Remote controller

• Before repair

OCH451B

Frequent calling from customers

Page 60

Phone Calls From Customers How to Respond Note

 Check the set temperature of remote controller. The outdoor unit cannot be operated if the set temperature is not appropriate.

The outdoor unit operates in the following modes. COOL: When the set temperature is lower than the room temperature. HEAT: When the set temperature is higher than the room temperature.

 Check if filters are not dirty and clogged. If filters are clogged, the airflow amount will be reduced and the unit capacity will be lowered. See the instruction manual that came with the product for how to clean the filters.

 Check there is enough space around the air conditioner. If there are any obstacles in the air intake or air outlet of indoor/outdoor units, they block the airflow direction so that the unit capacity will be lowered.



A gas escaping sound is heard

sometimes.

 This is not a malfunction. This is the sound which is heard when the flow of refrigerant in the air conditioner is switched.



A cracking sound is heard

sometimes.

 This is not a malfunction. This is the sound which is heard when internal parts of units expand or contract when the temperature changes.



A buzzing sound is heard

sometimes.

 This is not a malfunction. This is the sound which is heard when the outdoor unit starts operating.



A ticking sound is heard from

the outdoor unit sometimes.

 This is not a malfunction. This is the sound which is heard when the fan of the outdoor unit is controlling the airflow amount in order to keep the optimum operating condition.



A sound, similar to water

flowing, is heard from the unit.

 This is not a malfunction. This is the sound which is heard when the refrigerant is flowing inside the indoor unit.



The fan speed does not match the setting of the remote controller in HEAT operation.

The up/down vane will be automatically set to horizontal blow in these cases listed up on the left (~). After a while, the up/down vane will be automatically moved according to the setting of the remote controller.

 This is not a malfunction.

1) When the HEAT operation starts, to prevent the unit from blowing cold air, the fan speed is gradually increased from zero to the set speed, in proportion to the temperature rise of the discharged air.

2) When the room temperature reaches the set temperature and the outdoor unit stops, the unit starts the LOW AIR operation.

3) During the HEAT operation, the DEFROST operation is performed to defrost the outdoor unit. During the DEFROST operation, the blower is stopped to prevent cold air coming out of the indoor unit.

Sound comes out from the air conditioner.



The fan speed does not match the setting of the remote controller during DRY operation.(No air comes out sometimes during DRY operation.)

 This is not a malfunction. During the DRY operation, the blower’s ON/OFF is controlled by the microcomputer to prevent overcooling and to ensure efficient

dehumidification. The fan speed cannot be set by the remote controller during DRY operation.

Something is wrong with the blower…..

The room cannot be cooled or heated sufficiently.

OCH451B

Page 61



Air blows out for a while after

HEAT operation is stopped.

Phone Calls From Customers How to Respond Note

 This is not a malfunction. The blower is operating just for cooling down the heated-up air conditioner. This will be done within 1 minute. This control is conducted only when the HEAT operation is stopped with the electric heater ON.

However, this control is also applied to the models which has no electric heater.

“STANDBY” will be displayed on the remote controller in case of  and . “DEFROSTING” will be displayed on the screen in case of .



The airflow direction is changed

during COOL operation.

 If the up/down vane is set to downward in COOL operation, it will be automatically set to horizontal blow by the microcomputer in order to prevent water from dropping down. “1 Hr.” will be displayed on the remote controller if the up/down vane is set to downward with the fan speed set to be less than “LOW”.



The airflow direction is changed during HEAT operation. (The airflow direction cannot be set by remote controller.)

 In HEAT operation, the up/down vane is automatically controlled according to the temperature of the indoor unit’s heat exchanger. In the following cases written below, the up/down vane will be set to horizontal blow, and the setting cannot be changed by remote controller.

1) At the beginning of the HEAT operation

2) While the outdoor unit is being stopped by thermostat or when the outdoor unit gets started to operate.

3) During DEFROST operation The airflow direction will be back to the setting of remote controller when the above situations are released.



The airflow direction does not change. (Up/down vane, left/right louver)

1) Check if the vane is set to a fixed position. (Check if the vane motor connector is removed.)

2) Check if the air conditioner has a function for switching the air direction.

3) If the air conditioner doesn’t have that function, “NOT AVAILABLE” will be displayed on the remote controller when “AIR DIRECTION” or “LOUVER” button is pressed.

Something is wrong with the blower…..

Something is wrong with the airflow direction….

 Check if you set ON/OFF timer. The air conditioner starts operating at the time designated if ON timer has been set before.

 Check if any operations are ordered by distant control system or the central remote controller. While “CENTRALLY CONTROLLED INDICATOR” is displayed on the remote controller, the air conditioner is under the control of external directive.

The air conditioner starts operating even though any buttons on the remote controller are not pressed.

 Check if you set ON/OFF timer. The air conditioner stops operating at the time designated if OFF timer has been set before.

The air conditioner stops even though any buttons on the remote controller are not pressed.

There might be a case that “CENTRALLY CONTROLLED INDICATOR

” will not be

displayed.

There might be a case that “CENTRALLY CONTROLLED INDICATOR” will not be displayed.

 Check if power is recovered from power failure (black out). The units will automatically start operating when power is recovered after power failure (black out) occurs. This function is called “auto recovery feature from power ”.



Check if any operations are ordered by distant control system or the central remote controller. While “CENTRALLY CONTROLLED INDICATOR” is displayed on the remote controller, the air conditioner is under the control of external directive.

OCH451B

Page 62

Phone Calls From Customers How to Respond Note

This is not a malfunction. This may occur when the operation gets started in the room of high humidity.

A white mist is expelled from the indoor unit.

Cooling; when pipes or piping joints are cooled, they get sweated and water drips down. Heating; water drips down from the heat exchanger. * Make use of optional parts “Drain Socket” and “Drain pan” if these water needs to be collected and drained out for once.

Water or moisture is expelled from the outdoor unit.

Batteries are being exhausted. Replace them and press the reset button of remote controller.

The display of wireless remote controller gets dim or does not come on. The indoor unit does not receive a signal from remote controller at a long distance.

OCH451B

Page 63

1 2 3 4 5 6

Gray

Orange Red Yellow Black

1 2 3 4 5 6

Parts name

Check points

Disconnect the connector then measure the resistance with a tester. (At the ambient temperature 10~30)

Disconnect the connector then measure the resistance with a tester. (Winding temperature 20)

Thermistor (TH3) <Outdoor pipe> Thermistor (TH4) <Discharge> Thermistor (TH6) <Outdoor 2-phase pipe> Thermistor (TH7) <Outdoor> Thermistor (TH8) <Heatsink> Thermistor (TH32) <Shell> Thermistor (TH33) <Outdoor pipe>

Normal

160k~410k

4.3k~9.6k

39k~105k

TH4, TH32

TH3 TH6 TH7

TH33

TH8

Abnormal

Open or short

Normal

Red - White Red - Orange

Brown - Yellow

Brown - Blue

Abnormal

46±4

Measure the resistance between the terminals with a tester. (At the ambient temperature 20)

Solenoid valve coil <Four-way valve> (21S4)

Motor for compressor (MC)

Linear expansion valve (LEV-A/ LEV-B) For RP35-RP71

Linear expansion valve (LEV-A/LEV-B/LEV-C) For RP100-RP250

Normal

Abnormal

Open or short

Abnormal

Open or shortRefer to 6-2.

RP35-71

Open or short

Disconnect the connector then measure the resistance with a tester. (Winding temperature 20)

Normal

Gray - Black Gray - Red

Gray - Yellow

Gray - Orange

Abnormal

46±3

Open or short

Refer to next page.

Fan motor(MF1,MF2)

2350±170

Measure the resistance between the terminals with a tester. (Winding temperature 20)

Normal

Red Brown Blue

Orange Yellow

White

RP100-250 1435±150

11-6. HOW TO CHECK THE PARTS

OCH451B

PUHZ-RP35/50/60/71VHA4 PUHZ-RP100/125/140VKA PUHZ-RP100/125/140/200/250YKA PUHZ-RP200YKAR1

Page 64

Notes

· High voltage is applied to the connecter (CNF1, 2) for the fan motor. Pay attention to the service.

· Do not pull out the connector (CNF1, 2) for the motor with the power supply on. (It causes trouble of the outdoor controller circuit board and fan motor.) Self check Symptom : The outdoor fan cannot turn around.





Check method of DC fan motor (fan motor / outdoor controller circuit board)

Wiring contact check

Contact of fan motor connector (CNF1, 2)

Fuse check

Check the fuse (F5) on outdoor controller board.

Power supply check (Remove the connector (CNF1, 2))

Measure the voltage in the outdoor controller circuit board.

TEST POINT  : VDC (between 1 (+) and 4 (-) of the fan connector): VDC DC250~330V TEST POINT  : VCC (between 5 (+) and 4 (-) of the fan connector): VCC DC15V

Recover wiring.

Replace outdoor controller board.

Replace the fan motor.

Replace outdoor controller board (C.B) and fan motor (MF1, 2).

Replace outdoor

controller board.

Replace the fan motor.

Is the voltage normal?

Is there contact failure?

Yes

Did the fuse blow?

Yes

Check the operation of fan. END

Yes

Check the operation. END

Yes

OCH451B

Page 65

11-7. HOW TO CHECK THE COMPONENTS

-20 -10 0 10 20 30 40 50 Temperature ()

Resistance (k)

200

150

100

25 50 75 100 125

Temperature ()

Resistance (k)

500

400

300

200

100

50 75 100 120

Temperature ()

Resistance (k)

OCH451B

Low temperature thermistors

• Thermistor <Outdoor pipe> (TH3)

• Thermistor <Outdoor 2-phase pipe> (TH6)

• Thermistor <Outdoor> (TH7)

• Thermistor <Outdoor pipe> (TH33)

Thermistor R0 = 15k' ± 3% B constant = 3480 ± 2%

Rt =15exp{3480(

0: 15k' 10: 9.6k' 20: 6.3k' 25: 5.2k'

Medium temperature thermistor

• Thermistor <Heatsink> (TH8) WRP35-RP71V only

273+t

)}

–

273

: 4.3k'

40: 3.0k'

Thermistor R50 = 17k' ± 2% B constant = 4150 ± 3%

Rt =17exp{4150( 0: 180k'

25: 50k' 50: 17k' 70: 8k' 90: 4k'

High temperature thermistor

• Thermistor <Discharge> (TH4)

• Thermistor <Shell> (TH32)

Thermistor R120 = 7.465k' ± 2% B constant = 4057 ± 2%

Rt =7.465exp{4057(

273+t – 323

1 1

273+t – 393

)}

20: 250k' 30: 160k' 40: 104k' 50: 70k' 60: 48k'

70: 34k' 80: 24k' 90: 17.5k' 100: 13.0k' 110: 9.8k'

Page 66







Open

Extra tightening (about 32 pulse)

Pulse number

500 pulse Opening a valve all the way

Valve position (capacity)

LEV

Red

RP35-RP71

Brown

Blue

Orange

Yellow

White

Connector LEV-A

LEV-B

DC12V

Outdoor controller board

Drive circuit

Linear expansion valve

ON OFF OFF OFF

ON OFF OFF

OFF

ON OFF OFF

OFF

ON ON

OFF

Output

(Phase)

Output

:2 :3

2 3 4

5 6 7 8

OFF OFF

OFF

OFF OFF

ON ON

OFF OFF OFF

ON OFF OFF

OCH451B

(RP35-RP71)

(1) Operation summary of the linear expansion valve

• Linear expansion valve opens/closes through stepping motor after receiving the pulse signal from the outdoor controller board.

• Valve position can be changed in proportion to the number of pulse signal. <Connection between the outdoor controller board and the linear expansion valve>

(2) Linear expansion valve operation

Opening a valve : 8 → 7 → 6 → 5 → 4 → 3 → 2 → 1 → 8 Closing a valve : 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → 1

The output pulse shifts in above order.

· When linear expansion valve operation stops, all output phase become OFF.

· When the switch is turned on, 700 pulse closing valve signal will be sent till it goes to A point in order to define the valve position.

(The pulse signal is being sent for about 20 seconds.) When the valve moves smoothly, there is no sound or vibration

occurring from the linear expansion valve : however, when the pulse number moves from B to A or when the valve is locked, more sound can be heard.

No sound is heard when the pulse number moves from B to A in case coil is burnt out or motor is locked by open-phase.

· Sound can be detected by placing the ear against the screw driver handle while putting the screw driver to the linear expansion valve.

Page 67







Open

Extra tightening (about 32 pulse)

Pulse number

500 pulse Opening a valve all the way

Valve position (capacity)

LEV

Gray

Orange

Red

Yellow

Black

Connector LEV-A

LEV-B LEV-C

DC12V

Outdoor controller board

Drive circuit

Linear expansion valve

ON OFF OFF OFF

ON OFF OFF

OFF

ON OFF OFF

OFF

ON ON

OFF

Output

(Phase)

Output

:2 :3

2 3 4

5 6 7 8

OFF OFF

OFF

OFF OFF

ON ON

OFF OFF OFF

ON OFF OFF

OCH451B

(RP100-RP250)

(1) Operation summary of the linear expansion valve

• Linear expansion valve opens/closes through stepping motor after receiving the pulse signal from the outdoor controller board.

• Valve position can be changed in proportion to the number of pulse signal. <Connection between the outdoor controller board and the linear expansion valve>

(2) Linear expansion valve operation

Opening a valve : 8 → 7 → 6 → 5 → 4 → 3 → 2 → 1 → 8 Closing a valve : 1 → 2 → 3 → 4 → 5 → 6 → 7 → 8 → 1

The output pulse shifts in above order.

· When linear expansion valve operation stops, all output phase become OFF.

· When the switch is turned on, 700 pulse closing valve signal will be sent till it goes to A point in order to define the valve position.

(The pulse signal is being sent for about 20 seconds.) When the valve moves smoothly, there is no sound or vibration

occurring from the linear expansion valve : however, when the pulse number moves from B to A or when the valve is locked, more sound can be heard.

No sound is heard when the pulse number moves from B to A in case coil is burnt out or motor is locked by open-phase.

· Sound can be detected by placing the ear against the screw driver handle while putting the screw driver to the linear expansion valve.

Page 68

Main body

Lead wire

Stopper

Coil

(3) How to attach and detach the coil of linear expansion valve (RP35-RP71)

Be sure to attach the stopper to pipe B.

OCH451B

<Composition> Linear expansion valve is separable into the main body and the coil as shown in the diagram below.

Hold the lower part of the main body (shown as A) firmly so that the main body does not move and detach the coil by pulling it upward. Be sure to detach the coil holding main body firmly. Otherwise pipes can bend due to pressure.

Hold the lower part of the main body (shown as A) firmly so that the main body does not move and attach the coil by inserting it downward into the main body. Then securely attach the coil stopper to pipe B. (At this time, be careful that stress is not added to lead wire and main body is not wound by lead wire.) If the stopper is not firmly attached to pipe B, coil may be detached from the main body and that can cause defective operation of linear expansion valve. To prevent piping stress, be sure to attach the coil holding the main body of linear expansion valve firmly. Otherwise pipe may break.

Page 69

Main body

Lead wire

Stopper

Coil

Be sure to attach the stopper.

(4) How to attach and detach the coil of linear expansion valve (RP100-RP250)

OCH451B

<Composition> Linear expansion valve is separable into the main body and the coil as shown in the diagram below.

Hold the lower part of the main body (shown as A) firmly so that the main body does not move and attach the coil by inserting it downward into the main body. Then securely attach the coil stopper to main body. (At this time, be careful that stress is not added to lead wire and main body is not wound by lead wire.) If the stopper is not firmly attached to main body, coil may be detached from the main body and that can cause defective operation of linear expansion valve. To prevent piping stress, be sure to attach the coil holding the main body of linear expansion valve firmly. Otherwise pipe may break.

Page 70

SW4

1 2 Cooling

Heating

11-8. EMERGENCY OPERATION

SW4

1 2 Cooling

Heating

OFF

CN31

Shorting pins

Inspected content Open/short of outdoor unit thermistor (TH3/TH6/TH7/TH8) Indoor/outdoor unit communication error • Signal receiving error (Outdoor unit) Indoor/outdoor unit communication error • Transmitting error (Indoor unit) Communication error other than outdoor unit Communication error between outdoor controller board and M-NET board (Serial communication error)

Error code

E8 E9

E0 ~ E7

●When following abnormalities occur, emergency operation will be available.

OCH451B

(1) When the error codes shown below are displayed on outdoor unit or microcomputer for wired remote controller or indoor

unit has a failure, but no other problems are found, emergency operation will be available by setting the emergency operation switch (SWE) on indoor controller board to ON and short-circuiting the connector (CN31) on outdoor controller board.

(2) Check the following items and cautions for emergency operation

1 Make sure that there is no abnormality in outdoor unit other than the above abnormalities. (Emergency operation will not

be available when error code other than the above are indicated.)

2 For emergency operation, it is necessary to set the emergency operation switch (SWE) on indoor controller board. Refer

to the electrical wiring diagram of indoor unit for how to set the indoor unit.

3 During emergency operation, the air-conditioner will continuously be operated by supplying power and stopping it: It can

not be turned on or off by remote control, and temperature control is not possible.

4 Do not perform emergency heating operation for an extended period of time: If the outdoor unit starts defrosting during

this period, cold air will blow out from the indoor unit.

5 Do not perform emergency cooling operation for more than 10 hours: Neglecting this could result in freezing the heat

exchanger in indoor unit.

(3) Emergency operation procedure

1 Turn the main power supply off. 2 Turn on the emergency operation switch (SWE) on indoor controller board. 3 Set the shorting pins of emergency operation connector (CN31) on outdoor controller board to ON. 4 Use SW4-2 on outdoor controller board to set the operation mode (cooling or heating). (SW4-1 is not used.)

5 Turning the main power supply on will start the emergency operation.

(4) Releasing emergency operation

1 Turn the main power supply off. 2 Set the emergency operation switch (SWE) on indoor controller board to OFF. 3 Set the shorting pins of emergency operation connector (CN31) on outdoor controller

board to OFF.

4 Set SW4-2 on outdoor controller board as shown in the right.

w If shorting pins are not set on emergency operation connector (CN31), the setting remains OFF.

Page 71

(5) Operation data during emergency operation

Operation data

Intake temperature (TH1) Indoor pipe temperature (TH2) Indoor 2-phase pipe temperature (TH5) Set temperature Outdoor pipe temperature (TH3) Outdoor discharge pipe temperature (TH4) Outdoor 2-phase pipe temperature (TH6) Outdoor ambient temperature (TH7)

Temperature difference code

(room temperature - set temperature) (∆Tj)

Discharge superheat (SHd) Sub-cool (SC)

Operation mode

COOL

27

5

5 25 45 80 50 35

30deg

5deg

HEAT

20.5 45 50 22

5

80

5 7

30deg

5deg

(+1) (+1) (+1) (+1)

(+2) (+2)

Remarks

+1: If the thermistor temperature data is normal (not open/short), that data is loaded into the control as valid data. When the unit enters emergency operation and TH values are mismatched, set the thermistors to open/short. And the unit runs emergency operation with the values listed above. +2: If one thermistor is set to open/short, the values for SHd/SC will be different from the list above.

[Example] When liquid temperature thermistor (TH3) has an open or short circuit.

COOL

45

5 5

HEAT

5

50 45

Thermistor

TH3

TH6

TH4

TH5 TH2

Regard normal figure as effective data.

Discharge superheat (SHd) Cooling = TH4 - TH6 = Tc - Ta Heating = TH4 - TH5 = Td - 50

Degree of subcooling (SC) Cooling = TH6- TH3 = Ta -45 Heating = TH5- TH2 = 50 - 45 = 5 deg.

— — — —

—

OCH451B

During emergency operation, no communication is performed with the indoor unit, so the data items needed for operation are set to the following values:

Page 72

11-9. TEST POINT DIAGRAM

OCH451B

Outdoor controller circuit board PUHZ-RP35/50/60/71VHA4

PUHZ-RP100/125/140VKA PUHZ-RP100/125/140/200/250YKA PUHZ-RP200YKAR1

<CAUTION> TEST POINT1 is high voltage.

SW1

Forced defrost, detect history record reset, refrigerant address

SW6

Model select

SW4

Test operation

SWP

Pump down

SW5

Function switch

SW8

Pipe replace Wiring replace

CNM Connect to A control service tool

CNMNT Connect to M-NET adapter (CN5)

CNVMNT Connect to M-NET adapter (CND)

LEV-A,B

Linear expansion valve

TH4

Thermistor <Discharge>

TH3

Thermistor <Outdoor pipe>

TH7/6

Thermistor <Outdoor/ 2-phase pipe>

63H

High pressure switch

TH32

Thermistor <Shell>

TH33

Thermistor <Outdoor pipe> (For RP35-140)

VFG

(Voltage between right pins of PC5C and PC5D, pin 3 and pin 4) (Same as

(CNF17(+)-4(-))

SW7

Demand control setting

CNDM

1 to 2: Input of low-level sound priority mode 1 to 3: Input of external contact point

CN51

External signal output

• Compressor operating signal

• Abnormal signal

CN52C

(Connect to the noise filter circuit board (CN52C)) (RP35-140V)

LEV-C

Linear expansion valve (For RP140)

CN4

Transmission to outdoor power circuit board (CN4)

21S4

Four-way valve

CN2

Connect to the outdoor power circuit board (CN2) 1-5: Reception from

power circuit board 2-5: Zero cross signal (0-5V DC)

3,4: Not used 6-5: 16V DC 7-5: 16V DC

CNAC

2 to 4: Power supply for outdoor controller circuit board (220V-240V AC) 1 to 3: Power supply for indoor and outdoor unit connection wire (220-240V AC)

VSP

(Voltage between pins of C5A, C5B): DC 0V (when stopped), DC 1–

6.5V (when operated)

CNF1, CNF2 Connect to the fan motor

1-4: 250-330V DC 5-4: 15V DC 6-4: 0-6.5V DC 7-4: 15V DC(When stopped)

7.5V DC(When operated) (0V-15V pulse)

CNDC

250-330V DC (1+, 3-) (Outdoor power circuit board for RP35-140V) (Noise filter circuit board for RP100-250Y)

72 73

CNS

S1-S2: 220-240V AC

+ -

Communication power supply D71 Voltage 24V DC

Page 73

Outdoor noise filter circuit board

OCH451B

PUHZ-RP35VHA4 PUHZ-RP50VHA4

LI, NI Voltage of 220-240V AC is input. (Connect to the terminal block (TB1))

E3 Connect to the earth

CNAC1, CNAC2 220-240V AC (Connect to the outdoor controller circuit board (CNAC))

EI Connect to the earth

E2 Connect to the earth

CN5 Primary current (Connect to the outdoor power circuit board (CN5))

LO, NO Voltage of 220-240V AC is output. (Connect to the ACL)

CN52C 52C relay signal (Connect to the outdoor controller circuit board (CN52C))

Page 74

Outdoor noise filter circuit board

OCH451B

PUHZ-RP60VHA4 PUHZ-RP71VHA4

EI, E2 Connect to the earth

E3 Connect to the earth

CNAC1, CNAC2 220-240V AC (Connect to the outdoor controller circuit board (CNAC))

CN5 Primary current (Connect to the outdoor power circuit board (CN5))

CN52C 52C relay signal (Connect to the outdoor controller circuit board (CN52C))

LO, NO Voltage of 220-240V AC is output. (Connect ACL)

Page 75

Outdoor noise filter circuit board

OCH451B

PUHZ-RP100YKA PUHZ-RP125YKA PUHZ-RP140YKA PUHZ-RP200YKA PUHZ-RP200YKAR1 PUHZ-RP250YKA

GD1

Connect to the earth

LI1, LI2, LI3, NI POWER SUPPLY

LI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V input LI1-NI/LI2-NI/LI3-NI : AC220/230/240V input (Connect to the terminal block (TB1))

CNAC1, CNAC2 AC220/230/240V

(Connect to the outdoor controller circuit board (CNAC))

CNDC

(Connect to the outdoor controller circuit board (CNDC))

GD3

Connect to the earth

CNCT Primary current

(Connect to the outdoor power circuit board (CN5))

CNL Connect to the ACL4

NO Connect to the outdoor converter circuit board (N-IN)

LO1, LO2, LO3 POWER SUPPLY

LO1-LO2/LO2-LO3/LO3-LO1: AC380/400/415V OUTPUT (RP100-140: Connect to the outdoor converter circuit board and ACL (L1-IN,

ACL2, ACL3))

(RP200/250: Connect to the outdoor power circuit board (TB1-L1, L2, L3))

Page 76

Outdoor power circuit board

OCH451B

PUHZ-RP35VHA4 PUHZ-RP50VHA4 PUHZ-RP60VHA4 PUHZ-RP71VHA4

Brief Check of DIP-IPM and DIP-PFC W Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.

1. Check of DIP-IPM P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W

2. Check of DIP-PFC P1 - L , P1 - N , L - N1 , N - N1

Note: The marks, L , N , N1 , N2 , P1 , P2 , U , V and W shown in the diagram are not actually printed on the board.

LD1-LD2 280-380V DC Connect to the outdoor controller circuit board (CNDC)

R, S Connect to the ACL 220-240V AC

U, V, W Connect to the compressor (MC) Voltage among phases: 5V to 180V AC

DIP-PFC

LD9 Connect to the earth Only RP60, 71

DIP-IPM

CN2 Connect to the outdoor controller circuit board (CN2) 1-5: Outdoor power circuit board → Transmitting signal to the outdoor controller circuit board (0-5V DC)

2-5: Zero cross signal (0-5V DC) 3-4: Not used 6-5: 16V DC 7-5: 16V DC

1, 2, 6, 7 : +

[

5 : –

]

CN3 Thermistor <Heatsink> (TH8)

CN4 Connect from the outdoor controller circuit board (CN4)

CN5 Primary current detection (Connect to the outdoor noise filter circuit board (CN5))

Page 77

Outdoor power circuit board

OCH451B

PUHZ-RP100VKA PUHZ-RP125VKA PUHZ-RP140VKA

CN2 Connect to the outdoor controller circuit board (CN2)

CN4 Connect to the outdoor controller circuit board (CN4)

Connect to the smoothing capacitor CB -

1-5: Transmitting signal to outdoor controller circuit board (0-5 V DC) 2-5: Zero cross signal (0-5 V DC) 3-4: 18 V DC 6-5: 16 V DC 7-5: 16 V DC

CN52C

52C driving signal Connect to the outdoor controller circuit board (CN52C)

CNDC

280-380 V DC (1+, 3-) Connect to the outdoor controller circuit board (CNDC)

E2, E3

Connect to the earth

U/V/W

Connect to the compressor (MC) Voltage among phases: 10 V-180 V AC

Connect to the smoothing capacitor CB +

DCL1, DCL2

Connect to DCL

EI, E4

Connect to the earth

CNAC1, CNAC2

220-240 V AC Connect to the outdoor controller circuit board (CNAC)

NI, LI

Voltage of 220-240 V AC is input (Connect to the terminal block (TB1))

Page 78

Outdoor power circuit board

OCH451B

PUHZ-RP100YKA PUHZ-RP125YKA PUHZ-RP140YKA PUHZ-RP200YKA PUHZ-RP200YKAR1 PUHZ-RP250YKA

Brief Check of POWER MODULE W Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.

1. Check of POWER MODULE  1.Check of DIODE circuit

L1 - P1 , L2 - P1 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1  2.Check of IGBT circuit

P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W Note: The marks, L1 , L2 , L3 , N1 , N2 , P1 , P2 , U , V and W shown in the diagram are not actually printed on the board.

CN5

Detection of primary current (Connect to the outdoor noise filter circuit board (CNCT))

TAB connecter on X52A Connect to the RS resistor

CN4

Connect to the outdoor controller circuit board (CN4)

CN7

Connect to the outdoor converter circuit board (CN7)

CN2 Connect to the outdoor controller circuit board (CN2) 1-5: Power circuit board → Transmitting

signal to the controller board (0-5V DC)

2-5: Zero cross signal (0-5V DC) 3-4: Not used

[ 5 : – 1, 2, 6, 7 : + ] 6-5: 16V DC 7-5: 16V DC

TB-U, TB-V, TB-W

N2N1P2

Connect to the compressor (MC) Voltage among phases: 10V-400V AC

TB-L1, TB-L2, TB-L3

Connect to the outdoor converter circuit board (L1-OU, L2-OU, L3-OU) (RP100-140) Connect to the outdoor noise filter circuit board (LO1, LO2, LO3) (RP200/250) 380V-415V AC

TB-P2

Connect to the smoothing capacitor CB1 +

TB-C1

Connect to the smoothing capacitor CB1 – , CB2 +

TB-N1

Connect to the smoothing capacitor CB2 – , CK capacitor (CK capacitor only for RP100-140)

POWER MODULE

Page 79

Outdoor converter circuit board

OCH451B

PUHZ-RP100YKA PUHZ-RP125YKA PUHZ-RP140YKA

CK-OU

Connect to the CK capacitor

L1-IN, N-IN

Connect to the noise filter circuit board (LO1, No)

L1-A1

Connect to the ACL1

CN7

Connect to the outdoor power circuit board (CN7)

L1-A2, L2-A2, L3-A2

Connect to the ACL1, ACL2, ACL3

L1-OU, L2-OU, L3-OU

Connect to the outdoor power circuit board (TB-L1, L2, L3)

Page 80

Outdoor M-NET board (optional)

Switch

Type

switch

Dip

switch

Push

switch

SW1

1 2

No.

Function Effective timing

Action by the switch operation

Forced defrost +1 Start Normal

When compressor is working in heating operation. +1

Abnormal history clear

Refrigerant address setting

When power supply ON

Clear Normal off or operating

SWP

Under suspension

Pump down Start Normal

SW4

1 2

Test run Operating OFF

Under suspension

Test run mode setting

Heating Cooling

ON OFF

1 2 3

0 1 2 3

4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6

1 2 3

4 5 6 7

4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6

1 2 3

8 9 10 11

4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6

1 2 3

12 13 14 15

4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6

OCH451B

LED5 Energizing display of M-NET board (12V power supply)

CN2M Connect to M-NET

LED4 Receiving

LED3 Transmitting

LED3 Outdoor unit connecting display

CN5 Serial communication with outdoor board

LED1 Energizing display of M-NET board (5V power supply)

CND Power supply (5V/12V) input

)

2 to 3 5V DC Input 1 to 3 12V DC Input

)

[

1, 2 : +  3 : –

]

SW12 M-NET address (10s digit)

11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS

(1) Function of switches

The black square ( ) indicates a switch position.

SW1 Switch for communication display between M-NET and board

SW11 M-NET address (1s digit)

w1 Forced defrost should be done as follows.

1 Change the DIP SW1-1 on the outdoor controller board from OFF to ON. 2 Forced defrost will start by the above operation 1if all these conditions written below are satisfied.

Forced defrost will finish if certain conditions are satisfied. Forced defrost can be done if above conditions are satisfied when DIP SW1-1 is changed from OFF to ON. After DIP SW1-1 is changed from OFF to ON, there is no problem if DIP SW1-1 is left ON or changed to OFF again. This depends on the service conditions.

• Heat mode setting

• 10 minutes have passed since compressor started operating or previous compulsory defrosting finished.

• Pipe temperature is less than or equal to 8:.

Page 81

Type of

MODEL

125V

140V

1 2 3 64 7 8

OFF

MODEL SW6

1 2 3 64 75 8

OFF

1 2 3 64 74 5 8

OFF

1 2 3 64 74 5 8

OFF

1 2 3 64 74 5 8

OFF

100V

1 2 3 4 5 6

OFF

SW5-6

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 64 74 5 8

OFF

100Y

1 2 3 64 74 5 8

OFF

125Y

1 2 3 64 74 5 8

OFF

140Y

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 4 5 6

OFF

1 2 3 64 7 8

OFF

SW6

1 2 3 64 75 8

OFF

1 2 3 4 5 6

OFF

SW5-6

1 2 3 4 5 6

OFF

MODEL

SW6

SW5-6

MODEL SW6 SW5-6

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6

OFF

200YKA

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6

OFF

250Y

The black square (■) indicates a switch position.

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6

OFF

200YKAR1

OCH451B

Switch

Dip

switch

Swich No. Function

1 No function — — —

Power failure

automatic recovery w2

No function — — —

SW5

3,4,5

6 Model select Following SW5-6 reference 1 Mode select w3 Demand function Low noise mode Always 2 No function — — —

SW7

3 Max Hz setting (cooling) Max Hz (cooling) o 0.8 Normal Always 4 Max Hz setting (heating) Max Hz (heating) o 0.8 Normal Always 5

Breaker capacity setting w5 6 Defrost setting For high humidity Normal Always 1 No function — — —

SW8

2 No function — — — 3 No function — — — 1 No function — — —

SW9

2 Function switch Valid Normal Always

3,4

No function — — —

Action by the switch operation

ON OFF

Effective timing

Auto recovery No auto recovery When power supply ON

16A 25A

When power supply ON

SW6

SW5 6

w2 ‘Power failure automatic recovery’ can be set by either remote controller or this DIP SW. If one of them is set to ON, ‘Auto

recovery’ activates. Please set “Auto recovery” basically by remote controller because all units do not have DIP SW. Please refer to the indoor unit installation manual. w3SW7-1 is setting change over of Demand/Low noise. It is effective only in case of external input. (Local wiring is necessary. Refer to next page: Special function)

w4Please do not use SW7-3~6 usually. Trouble might be caused by the usage condition. w5With this switch setting, the capacity decreases up to 30% under peak load condition. Thus this setting is recommended

only for Air to water purposes.

Model select

Page 82

CN31

Types

Connector

Function Effective timing

Connector

Start

Short Open

Action by open/ short operation

Emergency operation

When power supply ON

Normal

(2) Function of connector

SW1

Orange

Brown

Red





CNDM

SW2

SW3

Orange

Brown

Red

CNDM

X Y







OCH451B

Special function

(a) Low-level sound priority mode (Local wiring)

By performing the following modication, operation noise of the outdoor unit can be reduced by about 3-4 dB.

The low noise mode will be activated when a commercially available timer or the contact input of an ON/OFF switch is added to the CNDM connector (option) on the control board of the outdoor unit.

• The ability varies according to the outdoor temperature and conditions, etc.

1 Complete the circuit as shown when using the external input adapter (PAC-SC36NA). (Option) 2 SW7-1 (Outdoor unit control board): OFF 3 SW1 ON: Low noise mode

SW1 OFF: Normal operation

C D

A Circuit diagram example

(low noise mode)

B On-site arrangement C External input adapter

X: Relay

D Outdoor unit control board E Max. 10 m F Power supply for relay

(PAC-SC36NA)

(b) On demand control (Local wiring)

By performing the following modication, energy consumption can be reduced to 0–100% of the normal consumption.

The demand function will be activated when a commercially available timer or the contact input of an ON/OFF switch is added to the CNDM connector (option) on the control board of the outdoor unit.

1 Complete the circuit as shown when using the external input adapter (PAC-SC36NA). (Option) 2 By setting SW7-1 on the control board of the outdoor unit, the energy consumption (compared to the normal consumption) can

be limited as shown below.

SW7-1 SW2 SW3 Energy consumption

OFF OFF 100%

Demand

function

ON OFF 75% ON ON 50%

OFF ON 0% (Stop)

C D

A Circuit diagram example

(Demand function) B On-site arrangement X, Y: Relay

C External input adapter (PAC-SC36NA)

D Outdoor unit control board E Max. 10 m F Power supply for relay

Page 83

—

E6 E7

—

E0 E3 E4 E5

A0~A8

[Display] (1)Normal condition

(2)Abnormal condition

Unit condition

Outdoor controller board A-Control Service Tool

LED1 (Green) LED2 (Red) Error code

When the power is turned on When unit stops When compressor is warming up When unit operates

Lighted Lighted Lighted Lighted

Lighted

Not lighted

Indication of the display

Alternately blinking display

Operation mode

Not lighted

Lighted

00, etc. 08, etc.

C5, H7 etc.

Indication Error

Error

code

Outdoor controller board

Contents Inspection method

LED1 (Green) LED2 (Red) 1 blinking 2 blinking

2 blinking 1 blinking

2 blinking

3 blinking

4 blinking

5 blinking

Connector (63H) is open.

Startup time over

Error code is not defined.

Miswiring of indoor/outdoor unit connecting wire, excessive number of indoor units (4 units or more)

Miswiring of indoor/outdoor unit connecting wire (converse wiring or disconnection)

Indoor/outdoor unit communication error (signal receiving error) is detected by indoor unit.

Indoor/outdoor unit communication error (transmitting error) is detected by indoor unit.

Indoor/outdoor unit communication error (signal receiving error) is detected by outdoor unit.

Indoor/outdoor unit communication error (transmitting error) is detected by outdoor unit.

Remote controller signal receiving error is detected by remote controller.

Remote controller transmitting error is detected by remote controller.

Remote controller signal receiving error is detected by indoor unit.

Remote controller transmitting error is detected by indoor unit.

Serial communication error <Communication between outdoor controller board and outdoor power board> <Communication between outdoor controller board and M-NET p.c. board>

Communication error of M-NET system

1.Error code displayed on remote controller



Check if indoor/outdoor connecting wire is connected correctly.



Check if 4 or more indoor units are connected to outdoor unit. Check if noise entered into indoor/outdoor connecting wire or power supply.

Re-check error by turning off power, and on again.



Check if connector (63H) on the outdoor controller board is

not disconnected.



Check continuity of pressure switch (63H) by tester.



Check if connector (CN4) on outdoor controller board and outdoor power board is not disconnected.



Check if there is poor connection of connector on outdoor controller board(CNMNT and CNVMNT).



Check M-NET communication signal.

Check if remote controller is MA remote controller(PAR-21MAA). Check if noise entered into transmission wire of remote controller. Check if noise entered into indoor/outdoor connecting wire. Re-check error by turning off power, and on again.

Check if connecting wire of indoor unit or remote controller

is connected correctly. Check if noise entered into transmission wire of remote controller.

Re-check error by turning off power, and on again.



Check if indoor/outdoor connecting wire is connected correctly.



Check if noise entered into indoor/outdoor connecting wire or power supply.



Check if noise entered into indoor/outdoor controller board.



Re-check error by turning off power, and on again.

P.42

P.43 (EA) P.43 (Eb) P.43

(EC) P.48

P.48

P.48 (E8)

P.48 (E9)

P.47 P.48 P.48 P.48 P.49

P.49

P.50~

P.53

Detailed

reference

page

OCH451B

The blinking patterns of both LED1 (green) and LED2 (red) indicate the types of abnormality when it occurs. Types of abnormality can be indicated in details by connecting an optional part ‘A-Control Service Tool (PAC-SK52ST)’ to connector CNM on outdoor controller board.

Page 84

UP UH

U6 U3

P1 P2 P9

Indication Error

Error code

Outdoor controller board

Contents Inspection method

LED1 (Green)

LED2 (Red)

3 blinking 1 blinking

2 blinking

3 blinking

1 Error code displayed on remote controller 2 Refer to service manual for indoor unit.

4 blinking

5 blinking

6 blinking

7 blinking

1 blinking

2 blinking

3 blinking

4 blinking

Abnormality of shell thermistor(TH32) and discharging temperature (TH4)

Abnormality of superheat due to low discharge temperature

Check if stop valves are open. 

Check if connectors (TH4, TH32, LEV-A, and LEV-B) on outdoor controller

board are not disconnected.

Check if unit is filled with specified amount of refrigerant. Measure resistance values among terminals on indoor valve and

outdoor linear expansion valve using a tester.

Abnormal high pressure (High pressure switch 63H operated.)

Abnormality of outdoor fan motor rotational speed

Check if indoor/outdoor units have a short cycle on their air ducts. Check if connector

(63H)

on outdoor controller board is not disconnected.

Check if heat exchanger and filter is not dirty. Measure resistance values among terminals on linear expansion valve

using a tester.

Check if stop valves are open. Check looseness, disconnection, and converse connection of

compressor wiring.



Measure resistance values among terminals on compressor using a tester.

Check if outdoor unit has a short cycle on its air duct.

Compressor overcurrent breaking(Start-up locked)

Compressor overcurrent breaking Abnormality of current sensor (P.B.) Abnormality of power module Open/short of discharge thermistor (TH4) and shell thermistor (TH32)

Open/short of outdoor thermistors (TH3, TH6, TH7 and TH8)

Check if connectors

(TH3,TH4,TH6 ,TH7 and TH32)

on outdoor controller

board and connector (CN3) on outdoor power board are not disconnected

Measure resistance value of outdoor thermistors.

Abnormality of heatsink temperature

Check if indoor/outdoor units have a short cycle on their air ducts. Measure resistance value of outdoor thermistor(TH8).

Check the outdoor fan motor. Check if connector

(TH3)

on outdoor controller board is disconnected.

Abnormality of voltage Check looseness, disconnection, and converse connection of

compressor wiring.



Measure resistance value among terminals on compressor using a tester

Check the continuity of contactor (52C). Check if power supply voltage decreases. Check the wiring of CN52C. Check the wiring of CNAF.

Abnormality of room temperature thermistor (TH1) Abnormality of pipe temperature thermistor /Liquid (TH2) Abnormality of pipe temperature thermistor/Condenser-Evaporator

Check if connectors (CN20, CN21, CN29 and CN44) on indoor controller board are not disconnected. Measure resistance value of indoor thermistors.

Abnormality of drain sensor (DS) Float switch(FS) connector open

Indoor drain overflow protection

Check if connector (CN31)(CN4F) on indoor controller board is not disconnected.

Measure resistance value of indoor thermistors. Measure resistance value among terminals on drain pump using

a tester.

Check if drain pump works. Check drain function.

Freezing (cooling)/overheating (heating) protection

Check if indoor unit has a short cycle on its air duct. Check if heat exchanger and filter is not dirty. Measure resistance value on indoor and outdoor fan motors. Check if the inside of refrigerant piping is not clogged.

Abnormality of pipe temperature



Check if indoor thermistors(TH2 and TH5) are not disconnected from holder.

Check if stop valve is open. 

Check converse connection of extension pipe. (on plural units connection) Check if indoor/outdoor connecting wire is connected correctly. (on plural units connection)

P.44

P.45

P.44

P.46

P.47 P.47 P.45 P.45 P.45

P.45

P.46

2 2 2

2

Detailed

reference

page

Protection from overheat operation(TH3)

OCH451B

Page 85

1ON2 3 4 5 6

1 second

interval

Display Operation Model

The tens digit : Operation mode

The ones digit : Relay output

O C H

Display

0 1 2 3 4 5 6 7 8 A

Compressor

Warming-up Compressor

4-way valve

Solenoid valve

— — —

— ON ON ON ON

—

— — — — — — —

— ON ON

—

— ON ON

—

— ON ON

— ON

—

— —

OFF / FAN

COOLING / DRY +

HEATING

DEFROSTING

Display

Contents to be inspected (When power is turned on)

F5 E8 E9 EA Eb EC

E0~E7

63H connector(yellow) is open. Indoor/outdoor communication error (Signal receiving error) (Outdoor unit) Indoor/outdoor communication error (Transmitting error) (Outdoor unit) Miswiring of indoor/outdoor unit connecting wire, excessive number of indoor units (4 units or more) Miswiring of indoor/outdoor unit connecting wire(converse wiring or disconnection) Startup time over Communication error except for outdoor unit

Display

Inspection unit 0 1 2 3 4

Outdoor unit

Indoor unit 1

Indoor unit 2

Indoor unit 3

Indoor unit 4

Display

Contents to be inspected (During operation)

U1 U2 U3 U4 U5 U6 U7 U8 Ud UF

UP P1~P8 A0~A7

Abnormal high pressure (63H operated) Abnormal high discharging temperature and shell thermistor, shortage of refrigerant Open/short circuit of discharging thermistor(TH4) and shell thermistor(TH32) Open/short of outdoor unit thermistors(TH3, TH6, TH7 and TH8) Abnormal temperature of heatsink Abnormality of power module Abnormality of superheat due to low discharge temperature Abnormality in outdoor fan motor Overheat protection Compressor overcurrent interruption (When Comp. locked) Current sensor error Abnormal low pressure Compressor overcurrent interruption Abnormality of indoor units Communication error of M-NET system

OCH451B

[When optional part ‘A-Control Service Tool (PAC-SK52ST)’ is connected to outdoor controller board (CNM)]

Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling DIP SW2 on ‘A-Control Service Tool’. Operation indicator SW2 : Indicator change of self diagnosis

SW2 setting

Display detail

Explanation for display Unit

(Be sure that the 1 to 6 in the SW2 are set to OFF.) (1) Display when the power supply ON When the power supply ON, blinking displays by turns. Wait for 4 minutes at the longest. (2) When the display lights (Normal operation) 1Operation mode display.

(Lighting)

SW2

LED1

wC5 is displayed during replacement operation.

2Display during error postponement Postponement code is displayed when compressor stops due to the work of protection device. Postponement code is displayed while error is being postponed.

(3) When the display blinks Inspection code is displayed when compressor stops due to the work of protection devices.

(Initial setting)

Page 86

SW2 setting

1ON2 3 4 5 6

OCH451B

Display detail

Pipe temperature / Liquid(TH3) – 40~90

The black square ( ) indicates a switch position.

Explanation for display Unit

– 40~90 (When the coil thermistor detects 0: or below, “–” and temperature are displayed by turns.) (Example) When -10:;

0.5 secs. 0.5secs. 2 secs.

Discharge temperature (TH4) 3~217

Output step of outdoor FAN 0~10

The number of ON / OFF times of compressor 0~9999

Compressor integrating operation times 0~9999

Compressor operating current 0~50

3~217 (When the discharge thermistor detects 100: or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 105:;

0.5 secs. 0.5secs. 2 secs.

0~10

0~9999 (When the number of times is 100 or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 42500 times (425 ×100 times);

0.5 secs. 0.5secs. 2 secs.

0~9999 (When it is 100 hours or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 2450 hours (245 ×10 hours);

0.5 secs. 0.5secs. 2 secs.

0~50 wOmit the figures after the decimal fractions.

Step

100 times

10 hours

Compressor operating frequency 0~255

0~255 (When it is 100Hz or more, hundreds digit, tens digit and ones digit are displayed by turns. (Example) When 125Hz;

0.5 secs. 0.5secs. 2 secs.

LEV-A opening pulse 0~480

0~480 (When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns. (Example) When 150 pulse;

0.5 secs. 0.5secs. 2 secs.

Error postponement code history (1) of outdoor unit

Postponement code display Blinking: During postponement Lighting: Cancellation of postponement “00” is displayed in case of no postponement.

Operation mode on error occurring Operation mode of when operation stops due to

error is displayed by setting SW2 like below.

(SW2)

Pulse

Code

display

Code

display

Page 87

SW2 setting

1ON2 3 4 5 6

OCH451B

Display detail

Pipe temperature / Liquid (TH3) on error occurring – 40~90

The black square ( ) indicates a switch position.

Explanation for display Unit

– 40~90 (When the coil thermistor detects 0: or below, “–” and temperature are displayed by turns.) (Example) When –15:;

0.5 secs. 0.5secs. 2 secs.

Compressor temperature (TH4) or discharge temperature (TH4) on error occurring 3~217

Compressor operating current on error occurring 0~50

Error code history (1) (latest) Alternate display of abnormal unit number and code

Error code history (2) Alternate display of error unit number and code

3~217 (When the temperature is 100: or more, the hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 130:;

0.5 secs. 0.5secs. 2 secs.

0~50

When no error history, “ 0 ” and “– –” are displayed by turns.

Code

display

Code

display

Thermostat ON time 0~999

Test run elapsed time 0~120

0~999 (When it is 100 minutes or more, the hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 245 minutes;

0.5 secs. 0.5secs. 2 secs.

0~120 (When it is 100 minutes or more, the hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 105 minutes;

0.5 secs. 0.5secs. 2 secs.

Minute

Page 88

SW2 setting

1ON2 3 4 5 6

Setting details

• The tens digit (Total display for applied setting)

• The ones digit

H·P /

Cooling only

Single phase / 3 phase

Display details

0 : H·P 1 : Cooling only 0 :

Single phase

2 :

3 phase

Setting details

Defrosting switch

Display details

0 : Normal 1 : For high humidity

1ON2 3 4 5 6

OCH451B

Display detail

The number of connected indoor units

The black square ( ) indicates a switch position.

Explanation for display

0~4 (The number of connected indoor units are displayed.)

Unit

Capacity setting display

Outdoor unit setting information

Indoor pipe temperature / Liquid (TH2(1)) Indoor 1 – 39~88

Displayed as an outdoor capacity code.

Capacity Code Capacity Code RP35V RP50V 10 RP125V, 125Y 25 RP60V 11 RP140V, 140Y 28 RP71V 14 RP200Y 40

(Example) When heat pump, 3 phase and defrosting

– 39~88 (When the temperature is 0: or less, “–” and temperature are displayed by turns.)

9 RP100V, 100Y 20

RP250Y 50

(normal) are set up, “20” is displayed.

Code

display

Code

display

Indoor pipe temperature / Cond. / Eva. (TH5(1)) Indoor 1 – 39~88

Indoor pipe temperature / Liquid (TH2(2)) Indoor 2 – 39~88

Indoor pipe temperature / Cond. / Eva. (TH5(2)) Indoor 2 – 39~88

Indoor room temperature (TH1) 8~39

– 39~88 (When the temperature is 0: or less, “–” and temperature are displayed by turns.)

8~39

Page 89

1ON2 3 4 5 6

SW2 setting

1ON2 3 4 5 6

Normal Overvoltage error Undervoltage error Input current sensor error L1-phase open error Abnormal power synchronous signal PFC error (RP35-71) (Overvoltage / Undervoltage / Overcurrent) PFC/ IGBT error (RP35-140V) Undervoltage

 Display examples for multiple errors: Overvoltage (01) + Undervoltage (02) = 03 Undervoltage (02) + Power-sync signal error (08) = 0A L1 phase open error (04) + PFC error (10) = 14

Power circuit board Controller circuit board

Controller circuit board Power circuit board Power circuit board

Defective P.B.

—

Description Detection point Display

00 01 02

04 08 10

1ON2 3 4 5 6

OCH451B

Display detail

Indoor setting temperature 17 – 30

The black square ( ) indicates a switch position.

Explanation for display Unit

17 – 30

°C

Outdoor pipe temperature / 2-phase (TH6)

-39 – 88

Outdoor ambient temperature (TH7)

-39 – 88

Outdoor heatsink temperature (TH8)

-40 – 200

Discharge superheat SHd 0 – 255

Cooling = TH4-TH6 Heating = TH4-TH5

Sub cool. SC 0 – 130

Cooling = TH6-TH3 Heating = TH5-TH2

-39 – 88 (When the temperature is 0: or less, “–” and temperature are displayed by turns.)

-40 – 200 (When the temperature is 0: or less, “–” and temperature are displayed by turns.) (When the thermistor detects 100: or more, hundreds digit, tens digit and ones digit are displayed by turns.)

0 – 255 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.)

0 – 130 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.)

°C

<From 17U***** (unit No.) onward> Number of defrost cycles 0 – FFFE

Input current of outdoor unit

LEV-B opening pulse

U9 Error status during the Error postponement period

0 – FFFE (in hexadecimal notation) (When more than FF in hex (255 in decimal), the number is displayed in order of 163's and 162's, and 161's and 160's places. (Example) When 5000 cycles;

2 cycles

0.5 secs. 0.5 secs. 2 secs.

0 – 500 (When it is 100 or more, hundreds digit, tens digit and ones digit are displayed by turns.)

0.1 A

0 – 480 (When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns.)

Pulse

Code

display

Page 90

SW2 setting

1ON2 3 4 5 6

OCH451B

Display detail

DC bus voltage 180~370(RP35~140V) 300~750(RP100~250Y)

The black square ( ) indicates a switch position.

Explanation for display Unit

180~370(RP35~140V) 300~750(RP100~250Y) (When it is 100V or more, hundreds digit, tens digit and ones digit are displayed by turns.)

Capacity save 0~100 When air conditioner is connected to M-NET and capacity save mode is demanded, “0”~”100” is displayed.

When there is no setting of capacity save “100” is displayed.

Error postponement code history (2) of outdoor unit

Error postponement code history (3) of outdoor unit

Error code history (3) (Oldest) Alternate display of abnormal unit number and code.

0~100 (When the capacity is 100% hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 100%;

0.5 secs. 0.5secs. 2 secs.

Postponement code display Blinking: During postponement Lighting: Cancellation of postponement “00” is displayed in case of no postponement.

When no error history, “0” and “– –“ are displayed by turns.

Code

display

Code

display

Code

display

Error thermistor display When there is no error thermistor,

“–“ is displayed.

Operation frequency on error occurring 0~255

Fan step on error occurring 0~10

Outdoor pipe temperature(TH33)

-39~88

3: Outdoor pipe temperature /Liquid (TH3) 6: Outdoor pipe temperature /2-phase (TH6) 7: Outdoor outside temperature (TH7) 8: Outdoor heatsink (TH8)

0~255 (When it is 100Hz or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 125Hz;

0.5 secs. 0.5secs. 2 secs.

0~10

-39~88 (When the temperature is 0: or less, “–” and temperature are displayed by turns.)

Code

display

Step

°C

Page 91

SW2 setting

1ON2 3 4 5 6

OCH451B

Display detail

LEV-C opening pulse 0~480

The black square ( ) indicates a switch position.

Explanation for display Unit

0~480 (When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 130 pulse;

0.5 secs. 0.5secs. 2 secs.

Pulse

Indoor room temperature (TH1) on error occurring 8~39

Indoor pipe temperature / Liquid (TH2) on error occurring

-39~88

Indoor pipe temperature / Cond./ Eva. (TH5) on error occurring

-39~88

Outdoor pipe temperature / 2-phase (TH6) on error occurring

-39~88

8~39

-39~88

(When the temperature is 0°C or less, “–” and temperature are displayed by turns.) (Example) When –15°C;

0.5 secs. 0.5secs. 2 secs.

-39~88

(When the temperature is 0°C or less, “–” and temperature are displayed by turns.) (Example) When –15°C;

0.5 secs. 0.5secs. 2 secs.

-39~88 (When the temperature is 0°C or less, “–” and temperature are displayed by turns.) (Example) When –15°C;

0.5 secs. 0.5secs. 2 secs.

Outdoor ambient temperature (TH7) on error occurring

-39~88

Outdoor heatsink temperature (TH8) on error occurring

-40~200

-39~88 (When the temperature is 0°C or less, “–” and temperature are displayed by turns.) (Example) When –15°C;

0.5 secs. 0.5secs. 2 secs.

-40~200 (When the temperature is 0°C or less, “–” and temperature are displayed by turns.) (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.)

Page 92

SW2 setting

1ON2 3 4 5 6

OCH451B

Display detail

Discharge superheat on error occurring SHd 0~255

Cooling = TH4-TH6 Heating = TH4-TH5

The black square ( ) indicates a switch position.

Explanation for display Unit

0~255 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 150°C;

0.5 secs. 0.5secs. 2 secs.

Sub cool on error occurring SC 0~130

Cooling = TH6-TH3 Heating = TH5-TH2

Thermo-on time until error stops 0~999

Indoor pipe temperature / Liquid (TH2 (3)) Indoor 3

-39~88

Indoor pipe temperature / Cond./ Eva. (TH5 (3)) Indoor 3

-39~88

0~130 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 115°C;

0.5 secs. 0.5secs. 2 secs.

0~999 (When it is 100 minutes or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 415 minutes;

0.5 secs. 0.5secs. 2 secs.

-39~88 (When the temperature is 0°C or less, “–” and temperature are displayed by turns.)

When there is no indoor unit, “00” is displayed.

Minute

Indoor pipe temperature / Liquid (TH2 (4)) Indoor 4

-39~88

Indoor pipe temperature / Cond. / Eva (TH5 (4)) Indoor 4

-39~88

-39~88 (When the temperature is 0°C or less, “–” and temperature are displayed by turns.)

When there is no indoor unit, “00” is displayed.

Page 93

SW2 setting

1ON2 3 4 5 6

Display

Compressor operating frequency control

Display

Compressor operating frequency control

Primary current control Secondary current control

1 2

4 8

•

The tens digit

•The ones digit

(In this digit, the total number of

activated control is displayed.)

Preventive control for excessive temperature rise of discharge temperature Preventive control for excessive temperature rise of condensing temperature Frosting preventing control

Preventive control for excessive temperature rise of heatsink

(Example) The following controls are activated.

• Primary current control

• Preventive control for excessive tempe rature rise of condensing temperature

• Preventive control for excessive tempe rature rise of heatsink



LED

1ON2 3 4 5 6

OCH451B

Display detail

Controlling status of compressor operating frequency

The black square ( ) indicates a switch position.

Explanation for display Unit

The following code will be a help to know the operating status of unit.

Code

display

Comp.shell temperature (TH32) 3~217

3~217 (When the comp.shell thermistor detects 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 105°C;

0.5 secs. 0.5secs. 2 secs.

Page 94

12 FUNCTION SETTING

Function

Settings

Mode No.

Setting No.

: Initial setting

(when sent from the factory)

Remarks

Power failure automatic recovery Indoor temperature detecting 1

LOSSNAY connectivity

Power supply voltage Frost prevention temperature Humidifier control

Change of defrosting control Refrigerant leakage setting (%)

OFF ON Average data from each indoor unit Data from the indoor unit with remote controller Data from main remote controller Not supported Supported

(Indoor unit does not intake outdoor air through LOSSNAY

)

Supported

(Indoor unit intakes outdoor air through LOSSNAY) 240V 220V, 230V 2 (Normal) 3 When the compressor operates, the humidifier also operates. When the fan operates, the humidifier also operates. Standard For high humidity 70%(RP35,50)/ 80%(RP60-140) 50%(RP35,50)/ 60%(RP60-140)

1 2 1 2 3 1 2 3 1 2 1 2 1 2 1 2 1 2

04 15 16 17 21

The setting is applied to all the units in the same refrigerant system.

Meaning of "Function setting" mode02:indoor temperature detecting

Indoor temperature(ta)=

No.1

Average data of the sensor on all the indoor units

Initial setting

ta=(A+B)/2 ta=(A+B)/2 ta=A ta=A

No.2

The data of the sensor on the indoor unit that connected with remote controller

ta=A ta=B ta=A ta=A

No.3

The data of the sensor on main remote controller.

ta=C ta=C ta=C ta=C

OUTDOOR

INDOOR

REMOTE (MAIN)

REMOTE (SUB)

INDOOR

OUTDOOR

INDOOR

REMOTE (MAIN)

REMOTE (SUB)

OUTDOOR

INDOOR

REMOTE (MAIN)

OUTDOOR

INDOOR

REMOTE (MAIN)

REMOTE (SUB)

INDOOR

OCH451B

12-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER

Each function can be set as necessary using the remote controller. The setting of function for each unit can only be done by the remote controller. Select function available from the table 1.

<Table 1> Function selections

(1) Functions available when setting the unit number to 00 (Select 00 referring to 4 setting the indoor unit number.)

W1 The functions above are available only when the wired remote controller is used. The functions are not available for floor

standing models.

94 95

Page 95

Function Settings

No.

Mode

No.

Setting

: Initial setting (Factory setting

)

- : Not available

4-Way

cassette

Ceiling

concealed

Ceiling suspended

Wall

mounted

PLA-BA

PEA-GA

PCA-HA

Filter sign 100h 1

2500h 07 2

No filter sign indicator

Air flow

Quiet

1 - -

(

Fan speed

)

Standard

08 2 - -

High ceiling

3 - -

No.of air outlets 4 directions 1 - -

3 directions 09 2 - 2 directions

3 - -

Optional high efficiency

Not supported

- -

filter

Supported

- -

Vane setting

No vanes (Vane No.3 setting : PLA only

)

1 - -

Vane No.1 setting

11 2 - -

Vane No.2 setting

3 - -

Energy saving air Disabled

- -

flow(Heating mode

)

Enabled

Optional humidifier

Not supported

- -

(

PLA only

)

Supported

- -

Vane differential setting

No.1 setting (TH5: 24-28

)

1 - -

in heating mode

No.2 setting (Standard,TH5:28-32

)

14 2 - -

(

cold wind prevention

)

No.3 setting (TH5: 32-38

)

3 - -

Swing

Not available Swing

- -

Available Wave air flow

Set temperature in heating

Available

mode(4 deg up

)

Not available

2 Fan speed during the Extra low 1 heating thermo OFF

Stop

25 2

Set fan speed

3 Fan speed during the

Set fan speed

1 cooling thermo OFF

Stop

2 Detection of abnormality of

Available

1 the pipe temperature (P8)Not available

}

PLA-BA

PKA-HAL PKA-KAL

Floor

standing

PSA-GA

PCA-KA

(2) Functions available when setting the unit number to 01-03 or AL (07 in case of wireless remote controller)

Function Settings

No.

Mode

No.

Setting

: Initial setting (

Factory setting

)

Filter sign 100h 1

2500h 07 2

No filter sign indicator

External static pressure

35/50/70/100/150Pa

08 10

1 2

Extra low

Fan speed during the heating thermo OFF

Stop

Set fan speed

1 2

Detection of abnormality of the pipe

Set temperature in heating

mode(4 deg up

)

Refer to the right table

External static pressure

35/50/70/100/150Pa

Refer to the right table Available Not available

Fan speed during the cooling thermo OFF

Set fan speed Stop

Available Not available

External static

pressure

Setting No.

Initial setting

(

Factory setting

)

35Pa 50Pa 70Pa 100Pa 150Pa

2 3 1 2 3

Mode No. 08 Mode No. 10

1 1 2 2 2

OCH451B

• When setting functions for an indoor unit in an independent system, set the unit number to 01 referring to 4 setting the indoor unit number of Operating Procedure.

• When setting functions for a simultaneous- Twin Triple indoor unit system, set the unit number to 01 to 03 for each indoor unit in case of selecting different functions for each unit referring to 4 setting the indoor unit number of Operating Procedure.

• When setting the same functions for an entire simultaneous Twin Triple-indoor unit system, set refrigerant address to AL (07 in case of wireless remote controller) referring to 4 setting the indoor unit number of Operating Procedure.

1. PKA-HAL/KAL: 2 deg up

PEAD-RP•JA(L)

Page 96



Select mode No. 02

(room temperature detection position).



Select setting No. 03 (remote controller fixed).

(Use  and .)



Enter the setting.

(Press .)

Finished



End function display.

(Press  and  at the same time.)

Example: Selecting room temperature detection position

YES



Selecting functions using the wired remote controller



Check the function selection setting.

For modes 15 and higher, press and  at the same time.



Specify refrigerant address 00 (outdoor unit)



Specify unit No. 00. (indoor unit)

(Use  and .)



Enter the setting.

(Press .)

(Specified indoor unit: FAN operation)

Change refrigerant address or unit No.



Switch to function setting mode.

(Press



and  at the same time

with the remote controller stopped.)

12-1-1. Selecting functions using the wired remote controller

First, try to familiarize yourself with the flow of the function selection procedure. In this section, an example of setting the room temperature detection position is given. For actual operations, refer to steps  to  .

Setting number

Refrigerant address Unit number

Mode number



















Modes 01 to 14 can be activated by pressing buttons  and



simultaneously, and modes 15 to 28 by pressing buttons  and .

The above procedure must be carried out only if changes are necessary.

OCH451B

96 97

Page 97

[Operating Procedure]

 Check the setting items provided by function selection.

If settings for a mode are changed by function selection, the functions of that mode will be changed accordingly. Check all the current settings according to steps  to  , fill in the "Check" column in Table 1, and then change them as necessary. For factory settings, refer to the indoor unit's installation manual.

 Switch off the remote controller.

 Hold down the ( mode is 15 to 28)and 

buttons simultaneously for atleast 2 seconds. will start to flash, and then the remote controller's display content will change as shown below.

FILTER

 Set the outdoor unit's refrigerant address.

 Press the [ CLOCK] buttons ( and ) to select the desired

refrigerant address. The refrigerant address changes from "00" to "15". (This operation is not possible for single refrigerant systems.)

* If the unit stops after

FUNCTION SELECTION

flashed for 2 seconds or "88" flashes in the room temperature display area for 2 seconds, a transmission error may have occurred.

Check to see if there are any sources of noise or interference near the transmission path. Note

If you have made operational mistakes during this procedure, exit function selection (see step  ), and then restart from step  .

 Set the indoor unit number.

 Press the

ON/OFF

button so that "- -" flashes in the unit number display

area.

 Press the [

CLOCK] buttons ( and ) to select the unit number

of the indoor unit for which you want to perform function selection. The unit number changes to "00", "01", "02","03",04" and "AL" each time a button is pressed.

* To set modes 01 to 06 or 15 to 22 select unit number "00". * To set modes 07 to 14 or 23 to 28 carry out as follows:

• To set each indoor unit individually, select "01" to "04".

• To set all the indoor units collectively, select "AL".

 Confirm the refrigerant address and unit number.

 Press the

MODE

button to confirm the refrigerant address and unit number. After a while, "- - " will start to flash in the mode number display area.

 When the refrigerant address and unit number are confirmed by pressing the

MODE

button, the corresponding indoor unit will start fan operation. This

helps you find the location of the indoor unit for which you want to perform function selection. However, if "00" or "AL" is selected as the unit number, all the indoor units corresponding to the specified refrigerant address will start fan operation.

* "88" will flash in the room temperature display area if the selected refrigerant

address does not exist in the system. Furthermore, if

"F"

appears and flashes in the unit number display area and the refrigerant address display area also flashes, there are no units that correspond to the selected unit number. In this case, the refrigerant address and unit number may be incorrect, so repeat steps  and  to set the correct ones.

* When grouping different refrigerant systems, if an indoor unit other than the

one to which the refrigerant address has been set performs fan operation, there may be another refrigerant address that is the same as the specified one. In this case, check the DIP switch of the outdoor unit to see whether such a refrigerant address exists.

 Select the mode number.

 Press the [ TEMP] buttons ( and ) to set the desired mode

number. (Only the selectable mode numbers can be selected.)

 Select the setting content for the selected mode.

 Press the

button. The currently selected setting number will

flash, so check the currently set content.

 Press the [ TEMP] buttons ( and ) to select the desired setting

number.

 Register the settings you have made in steps  to  .

 Press the

MODE

button. The mode number and setting number will start

to flash and registration starts.

The mode number and setting number will stop flashing and remain lit, indicating the end of registration.

* If " - - - " is displayed for both the mode number and setting number and " " flashes in the room temperature display area, a transmission error may have occurred.

Check to see if there are any sources of noise or interference near the transmission path.

 Complete function selection.

 Hold down the ( mode is 15 to 28) and buttons

simultaneously for at least 2 seconds.

FILTER

After a while, the function selection screen will disappear and the air conditioner OFF screen will reappear.

* Do not operate the remote controller for at least 30 seconds after completing

function selection. (No operations will be accepted even if they are made.)

Note If a function of an indoor unit is changed by function selection after installation is complete, make sure that a " " mark, etc., is given in the "Check" column of Table 1 to indicate the change.

Refrigerant address display section

Unit number display section

Mode number display section

00 refrigerant address

Example) When the refrigerant address is set to 00 and the unit number is 02.

Mode number display section

Mode number 02 = Indoor temperature detection

Setting number display section

Setting number 3 = Remote controller built-in sensor

Setting number 1 = Indoor unit operating average

TEST

FUNCTION SELECTION

TEST

Outdoor unit

Indoor unit

No. 02No. 01

Remote controller

Fan mode

Confirm

No. 03

To make additional settings in the FUNCTION SELECTION screen, repeat the steps  through . Note. After setting the modes 07 through 14, the modes 23 through 28 cannot be set continuously, or vice versa. In this case, after completing the settings for the modes 07 through 14 or 23 through 28, go to the step 10 to finish setting, and restart setting from the step 1. At this point, wait for 30 seconds or more before restarting setting. Otherwise, the temperature may indicate “”.



OCH451B

Page 98

ON/OFF

TEMP

FAN

VANE

MODE

CHECK

LOUVER

TEST RUN

AUTO STOP

AUTO START

min

CHECK

RESET

SET

CLOCK

Flow of function selection procedure

The flow of the function selection procedure is shown below. This example shows how to turn off the function that raises the set temperature by 4 degrees during HEAT operation. (Mode 24: 2) The procedure is given after the flow chart.

 Check the function selection setting.  Switch to function selection mode.

(Enter address "50" in check mode,

then press the button.)

Check mode is the mode entered when you press the CHECK button twice to display "CHECK".

 Specify unit No. "01" (since the function applies to unit 01). (Set address "01" while still in check mode, then press the button.) Note: You cannot specify the refrigerant address.



Select mode No. "24" (function that raises set temperature by 4 degrees during HEAT operation).

(Set address "24" while still in check mode, then press the button.)



Finished

 End function selection mode. (End check mode.)

YES

Note: When you switch to function selection mode on the wireless remote controller's operation area, the unit ends function selection mode automatically if nothing is input for 10 minutes or longer.

 Select setting No. "02" (OFF). (Set address "02" while still in check mode, then press the button.)

Change unit No.

YES



min

12-1-2. Selecting functions using the wireless remote controller (Type C)

CHECK

min

OCH451B

Functions can be selected with the wireless remote controller. Function selection using wireless remote controller is available only for refrigerant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller.

[Flow of function selection procedure]

[Operating instructions]

1 Check the function settings. 2 Press the button twice continuously. → CHECK is lit and “00” blinks.

Press the temp button once to set “50”. Direct the wireless remote controller toward the receiver of the indoor unit and press the button. 3 Set the unit number. Press the temp button to set the unit number. (Press “01” to specify the indoor unit whose unit number is 01.) Direct the wireless remote controller toward the receiver of the indoor unit and press the button.

By setting unit number with the button, specified indoor unit starts performing fan operation. Detect which unit is assigned to which number using this function. If unit number is set to AL, all the indoor units in same refrigerant system start performing fan operation simultaneously.

* If a unit number that cannot be recognized by the unit is entered, 3 beeps of 0.4 seconds will be heard. Reenter the unit number setting. * If the signal was not received by the sensor, you will not hear a beep or a “double beep” may be heard. Reenter the unit number setting. 4 Select a mode. Press the temp button to set a mode. Press “24” to turn on the function that raises the set temperature by 4 degree during heat operation. Direct the wireless remote controller toward the sensor of the indoor unit and press the button.

→ The sensor-operation indicator will flash and beeps will be heard to indicate the current setting number.

Current setting number: 1 = 1 beep (1 second) 2 = 2 beeps (1 second each) 3 = 3 beeps (1 second each) * If a mode number that cannot be recognized by the unit is entered, 3 beeps of 0.4 seconds will be heard. Reenter the mode number. * If the signal was not received by the sensor, you will not hear a beep or a “double beep” may be heard. Reenter the mode number. 5 Select the setting number. Press the temp button to select the setting number. (02: Not available) Direct the wireless remote controller toward the receiver of the indoor unit and press the button.

→ The sensor-operation indicator will flash and beeps will be heard to indicate the the setting number.

Setting number: 1 = 2 beeps (0.4 seconds each) 2 = 2 beeps (0.4 seconds each, repeated twice) 3 = 2 beeps (0.4 seconds each, repeated 3 times) * If a setting number that cannot be recognized by the unit is entered, the setting will turn back to the original setting. * If the signal was not received by the sensor, you will not hear a beep or a “double beep” may be heard. Reenter the setting number.

6 Repeat steps 4 and 5 to make an additional setting without changing unit number. 7 Repeat steps 3 to 5 to change unit number and make function settings on it. 8 Complete the function settings

Press button. * Do not use the wireless remote controller for 30 seconds after completing the function setting.

Page 99

12-2. FUNCTION SELECTION OF REMOTE CONTROLLER

The setting of the following remote controller functions can be changed using the remote controller function selection mode. Change the setting when needed.

Item 1

1.Change Language ("CHANGE LANGUAGE")

2.Function limit ("FUNCTION SELECTION")

3.Mode selection ("MODE SELECTION")

4.Display change ("DISP MODE SETTING")

Item 3 (Setting content)

• Display in multiple languages is possible.

• Setting the range of operation limit (operation lock)

• Setting the use or non-use of "automatic" operation mode

• Setting the temperature adjustable range (maximum, minimum)

• Selecting main or sub remote controller *

When two remote controllers are connected to one group, one controller must be set to sub.

• Setting the use or non-use of clock function

• Setting the timer type

• Contact number display in case of error

• Setting the telephone number

• Setting the temperature unit ( or °F) to display

• Setting the use or non-use of the display of indoor (suction) air temperature

• Setting the use or non-use of the display of "Cooling" or "Heating" display during

operation with automatic mode

Item 2

Language setting to display

(1)

Operation function limit setting (operation lock) ("LOCKING FUNCTION")

(2)

Use of automatic mode setting ("SELECT AUTO MODE")

(3)

Temperature range limit setting ("LIMIT TEMP FUNCTION")

(1)

Remote controller main/sub setting ("CONTROLLER MAIN/SUB")

(2) Use of clock setting ("CLOCK") (3) Timer function setting ("WEEKLY TIMER") (4) Contact number setting for error situation ("CALL.")

(1) Temperature display /°F setting ("TEMP MODE /°F") (2)

Room air temperature display setting ("ROOM TEMP DISP SELECT")

(3)

Automatic cooling/heating display setting ("AUTO MODE DISP C/H")

[Function selection flowchart] Refer to next page. [1] Stop the air conditioner to start remote controller function selection mode. [2] Select from item1. [3] Select from item2. [4] Make the setting. (Details are specified in item3) [5] Setting completed. [6] Change the display to the normal one. (End)



 

[Detailed setting] [4] -1. CHANGE LANGUAGE setting

The language that appears on the dot display can be selected.

• Press the [ MENU] button to change the language.

 Japanese (JP),  English (GB),  German (D),  Spanish (E),  Russian (RU),  Italian (I),  Chinese (CH), French (F)

[4] -2. Function limit (1) Operation function limit setting (operation lock)

• To switch the setting, press the [ ON/OFF] button.  no1 : Operation lock setting is made on all buttons other than

the [ ON/OFF] button.

 no2 : Operation lock setting is made on all buttons.  OFF (Initial setting value) : Operation lock setting is not made

* To make the operation lock setting valid on the normal screen, it is

necessary to press buttons (Press and hold down the [FILTER] and [ ON/OFF] buttons at the same time for 2 seconds.) on the normal screen after the above setting is made..

(2) Use of automatic mode setting When the remote controller is connected to the unit that has automatic operation mode, the following settings can be made.

• To switch the setting, press the [ ON/OFF] button.  ON (Initial setting value) : The automatic mode is displayed when

the operation mode is selected.

 OFF : The automatic mode is not displayed

when the operation mode is selected.

[4] -3. Mode selection setting (1) Remote controller main/sub setting

• To switch the setting, press the [ ON/OFF] button.

 Main : The controller will be the main controller.  Sub : The controller will be the sub controller.

(2) Use of clock setting

• To switch the setting, press the [ ON/OFF] button.

 ON : The clock function can be used.  OFF: The clock function cannot be used.

(3) Timer function setting

• To switch the setting, press the [ ON/OFF] button (Choose one of the followings.).

 WEEKLY TIMER (initial setting):

The weekly timer can be used.

 AUTO OFF TIMER: The auto off timer can be used.

SIMPLE TIMER:

The simple timer can be used.





TIMER MODE OFF: The timer mode cannot be used.

* When the use of clock setting is OFF, the "WEEKLY TIMER" cannot be

used.

(4) Contact number setting for error situation

• To switch the setting, press the [ ON/OFF] button.

 CALL OFF:

The set contact numbers are not displayed in case of error.

 CALL **** *** **** : The set contact numbers are displayed in case

of error.

(3) Temperature range limit setting After this setting is made, the temperature can be changed within the set range.

• To switch the setting, press the [ ON/OFF] button.  LIMIT TEMP COOL MODE :

The temperature range can be changed on cooling/dry mode.

 LIMIT TEMP HEAT MODE :

The temperature range can be changed on heating mode.

 LIMIT TEMP AUTO MODE :

The temperature range can be changed on automatic mode.  OFF (initial setting) : The temperature range limit is not active. *

When the setting, other than OFF, is made, the temperature range limit setting on cooling, heating and automatic mode is made at the same time. However the range cannot be limited when the set temperature range has not changed.

•

To increase or decrease the temperature, press the [ TEMP ( ) or ( )] button.

•

To switch the upper limit setting and the lower limit setting, press the

[ ]

button. The selected setting will flash and the temperature can be set.

• Settable range

Cooling/Dry mode : Lower limit: 19  ~ 30 Upper limit: 30  ~ 19 Heating mode : Lower limit: 17  ~ 28 Upper limit: 28  ~ 17 Automatic mode : Lower limit: 19  ~ 28 Upper limit: 28  ~ 19

CALL_ : The contact number can be set when the display is as

shown on the left.

• Setting the contact numbers To set the contact numbers, follow the following procedures. Move the flashing cursor to set numbers. Press the [ TEMP. ( ) and ( )] button to move the cursor to the right (left). Press the [ CLOCK ( ) and ( )] button to set the numbers.

[4] -4. Display change setting (1) Temperature display / °F setting

• To switch the setting, press the [ ON/OFF] button.

  : The temperature unit  is used.  °F : The temperature unit °F is used.

• To switch the setting, press the [ ON/OFF] button.

(3) Automatic cooling/heating display setting

• To switch the setting, press the [ ON/OFF] button.  ON : One of "Automatic cooling" and "Automatic heating" is displayed

under the automatic mode is running.

 OFF: Only "Automatic" is displayed under the automatic mode.

(2) Room air temperature display setting

ON : The room air temperature is displayed. OFF : The room air temperature is not displayed.



OCH451B

Page 100

OFF

no1

no2

OFF

CALL-

OFF

°C

°F

PAR-21MAA

ON/OFF

FILTER

CHECK

OPERATION

CLEAR

TEST

TEMP.

BACK DAY

MONITOR/SET

CLOCK

ON/OFF

English

German Spanish

Russian

Italian Chinese French

Japanese

Item 3

Item 2Item 1

Hold down the button and press the button for 2 seconds.

Remote controller function selection mode

Press the operation mode button. Press theTIMER MENU button. Press theTIMER ON/OFF button.

Dot display

Normal display (Display when the air conditioner is not running)

[Function selection flowchart]

Setting language (English)

Room air temperature is not displayed.

One of “Automatic cooling” and “Automatic heating” is displayed under the automatic mode is running. (Initial setting value)

Only “Automatic” is displayed under the automatic mode.

Change

Language

Function

selection

Mode

selection

Display

mode setting

Operation lock setting is not used. (Initial setting value)

Operation lock setting is made on all buttons other than On/Off button.

Operation lock setting is made on all buttons.

The automatic mode is displayed when the operation mode is selected. (Initial setting value)

The automatic mode is not displayed when the operation mode is selected.

The temperature range limit is not active. (Initial setting value)

The temperature range can be changed on cooling/dry mode.

The temperature range can be changed on heating mode.

The temperature range can be changed on automatic mode.

The remote controller will be the main controller. (Initial setting value)

The remote controller will be the sub controller.

The clock function can be used. (Initial setting value)

The clock function cannot be used.

Weekly timer can be used. (Initial setting value)

Auto off timer can be used.

Simple timer can be used.

Timer mode cannot be used.

The set contact numbers are not displayed in case of error. (Initial setting value)

The set contact numbers are displayed in case of error.

The temperature unit °C is used. (Initial setting value)

The temperature unit °F is used.

Room air temperature is displayed. (Initial setting value)

Fixed air flow direction mode

Not necessary to set this mode. Refer to OPERATION MANUAL of indoor unit for details on operation.

Automatic filter elevation panel up/down operation mode

Not necessary to set this mode. Refer to OPERATION MANUAL of Optional Parts (Panel) for details on operation.









 















OCH451B

100 101

MITSUBISHI PUHZ-RP200YKA, PUHZ-RP250YKA Schematic

Specifications and Main Features

Frequently Asked Questions

User Manual