Mitsubishi PUHZ-HRP71VHA(2), PUHZ-HRP100VHA(2), PUHZ-HRP100YHA(2), PUHZ-HRP125YHA(2) Service Manual

Page 1

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE MANUAL

R410A

Outdoor unit [model names]

PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

[Service Ref.]

PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

September 2008

No.OCH425

REVISED EDTION-A

Revison:

• PUHZ-HRP71/100VHA2 and PUHZ-HRP100/125YHA2 are added in REVISED EDITION-A.

• Some descriptions have been modified.

• Please void OCH425.

NOTE:

• This manual describes only service data of the outdoor units.

• RoHS compliant products have <G> mark on the spec name plate.

PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA

CONTENTS

1. TECHNICAL CHANGES ·································2

2. REFERENCE MANUAL ··································2

3. SAFETY PRECAUTION ·································3

4. FEATURES ·····················································7

5. SPECIFICATIONS···········································8

6. DATA ·······························································9

7. OUTLINES AND DIMENSIONS ····················12

8. WIRING DIAGRAM ······································· 14

9. WIRING SPECIFICATIONS ··························18

10. REFRIGERANT SYSTEM DIAGRAM ········23

11. TROUBLESHOOTING ································25

12. FUNCTION SETTING ·································83

13.

MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER

14. EASY MAINTENANCE FUNCTION ·········100

15. DISASSEMBLY PROCEDURE ·················105

····90

PARTS CATALOG (OCB425)

Page 2

TECHNICAL CHANGES

PUHZ-HRP 71VHA PUHZ-HRP100VHA

• Add pressure sensor (63HS).

• Compressor (MC) has been changed. ANB33FJCMT

• Thermistor (Discharge / TH4) has been changed.

• Fan motors (MF1,2) have been changed.

• Fan grilles have been changed.

• Electrical parts have been changed. Controller circuit board (C.B.), Power circuit board (P.B.), Noise ﬁ lter circuit board (N.F.) and active ﬁ lter module (ACTM) (including P.B.)

PUHZ-HRP100YHA PUHZ-HRP125YHA

• Add pressure sensor (63HS).

• Compressor (MC) has been changed. ANB33FJBMT

• Thermistor (Discharge / TH4) has been changed.

• Fan motors (MF1,2) have been changed.

• Fan grilles have been changed.

• Controller circuit board (C.B.) have been changed.

ANB33FJEMT

ANB33FJDMT

PUHZ-HRP 71VHA2 PUHZ-HRP100VHA2

PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

REFERENCE MANUAL

2-1. INDOOR UNIT SERVICE MANUAL

Model name Service Ref.

PLA-RP35/50/60/100/125BA PLA-RP100/125BA2

PKA-RP60/100FAL PKA-RP50FAL2

PEAD-RP50/60/71/125EA PEAD-RP100EA2

PEAD-RP60/71/100GA PEAD-RP60/71/100GA.UK

PLA-RP35/50/60/100/125BA PLA-RP100/125BA2.UK

PKA-RP60/100FAL PKA-RP50FAL2

PEAD-RP50/60/71/125EA.UK PEAD-RP100EA2.UK

2-2. TECHNICAL DATABOOK Manual No. OCS11

(1).UK/BA#2.UK

Service Manual No.

OCH412 OCB412

OC331

HWE05210

HWE05060

Page 3

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

Use new refrigerant pipes.

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

· Be sure to perform replacement operation before test run.

· Change flare nut to the one provided with this product. Use a newly flared pipe.

· Avoid using thin pipes.

Make sure that the inside and outside of refrigerant piping is clean and it has no contamination such as sulfur hazardous for use, oxides, dirt, shaving particles, etc. In addition, use pipes with specified thickness.

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

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

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

Use ester oil, ether oil or alkylbenzene oil (small amount) as the refrigerant oil applied to flares and flange connections.

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

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.

Tools for R410A Gauge manifold Charge hose

Gas leak detector

Torque wrench

Flare tool Size adjustment gauge

Vacuum pump adaptor Electronic refrigerant charging scale

Keep the 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.

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.

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

[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.)

Page 4

Unit

Gravimeter

[3] Service tools

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

·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

specifications

. (UNF1/2)

[4] Refrigerant leakage detection function

This air conditioner 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.

Page 5

3-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES

(1) Flowchart

Measure the existing pipe thickness and check for damage.

The existing pipe thickness meets specifications and the pipes are not damaged.

Check if existing air conditioner can operate.

Existing air conditioner can operate.

Perform cooling operation for about 30 minutes and then do a pump down work.

Disconnect existing air conditioner from piping.

Existing pipes can be reused.

Existing air conditioner cannot operate.

Use a refrigerant recovery equipment to recover the refrigerant.

In case existing pipes were used

for gas or oil heat pump system, be sure to clean the pipes for HRP71,100,125 models.

The existing pipe thickness does not meet specifications or the pipes are damaged.

Existing pipes cannot be reused. Use new pipes.

In case the unit is RP35/50 or RP60/71VHA2(1) which utilizes HAB oil.

In case the unit is HRP71, 100, 125 which utilize ester oil or ether oil.

Connect a new air conditioner.

Perform replacement operation.

·When performing replacement operation, make sure that DIP SW8-2 on outdoor unit controller board is set to ON. +Chemical compounds containing chlorine left in existing pipes are collected by replace filter.

●The air conditioner automatically performs cooling operation through replace filter for about 2 hours.

Connecting a new air conditioner

Flaring work should be done so that flare meets the dimension for R410A. Use flare nut provided with indoor and outdoor unit.

When using gas piping of :19.05mm for HRP100, 125. Make sure that DIP SW8-1 on outdoor unit controller board is set to ON.

This is to keep the pressure on pipes within permissible range.

●Use different diameter joint or adjust the piping size by brazing. When using pipes larger than specified size for HRP71.

Make sure that DIP SW8-1 on outdoor unit controller board is set to ON.

This is to prevent oil flow ratio from lowering due to the decrease in flowing refrigerant.



●Use different diameter joint or adjust the piping size by brazing. When existing pipes are specified size.

The pipes can be reused referring to TECHNICAL DATA BOOK (OCS11).

●Use different diameter joint or adjust the piping size by brazing.

* When using existing pipes for HRP71, 100, 125 Make sure that DIP SW8-2 on outdoor unit controller board is set to ON and perform replacement operation.

+Chemical compounds containing chlorine left in existing pipes are collected by replace filter.

●The air conditioner automatically performs cooling operation through replace filter for about 2 hours.

Page 6

(2) Cautions for refrigerant piping work

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 time higher than that of R22, their sizes of flared sections and flare nuts are different.

1Thickness 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 0.7mm or below.)

Diagram below: Piping diameter and thickness

Nominal

dimensions(inch)

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

Outside

diameter

6.35

9.52

12.70

15.88

19.05

(mm)

Thickness

R410A R22

0.8

1.0

—

(mm)

0.8

1.0

2Dimensions 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 refriger ants. Therefore, to enhance airtightness and intensity, flare cutting dimension of copper pipe for R410A have been speci fied 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

Dimension B

Flare cutting dimensions

Nominal

dimensions(inch)

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

Outside

diameter

6.35

9.52

12.70

15.88

19.05

Dimension A

R410A R22

9.1

13.2

16.6

19.7 —

( )

-0.4

9.0

13.0

16.2

19.4

23.3

Flare nut dimensions

(mm)

dimensions(inch)

Nominal

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

Outside

diameter

6.35

9.52

12.70

15.88

19.05

Dimension B

R410A

17.0

22.0

26.0

29.0

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

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

: 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.

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 Charge refrigerant 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, ether 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

(Usable if equipped

with adopter for rever se flow)

(Usable by adjusting flaring dimension)

(mm)

R22

17.0

22.0

24.0

27.0

36.0

Can R407C tools be used?

Ester oil, ether oil: Alkylbenzene oil: minimum amount

(Usable if equipped

with adopter for rever se flow)

(Usable by adjusting

flaring dimension)

+36.0mm for indoor unit of RP100, 125 and 140

Page 7

FEATURES

PUHZ-HRP71/100VHA PUHZ-HRP100/125YHA

HIGH HEATING CAPACITY

Industry-first flash injection circuit is equipped, which enables to keep the equal capacity with the rating even when outside temperature is -15:.

HIGH SPEED HEATING START UP

The performance of heating start up is improved. Compared to RP type, Zubadan reduced the time for heating start up by about half. After starting operation, the airflow temperature goes up to 45: quickly in 10 minutes. With industry-first shorter and less frequent defrost, defrosting time is cut down by 15% compared to RP type and heating operation can continuously run for maximum 150 minutes.

PUHZ-HRP71/100VHA2 PUHZ-HRP100/125YHA2

(kW)

Performance

about

Heating capacity

(kW)

30%UP

-25 -20 -15 -10 -5 0

Outdoor W.B. temp.

HRP100 Outlet air temp.45

13kW (Outlet air temp. 45)

About 10min.

HRP125

hot air of 50

It doesn’t reach 50

when outside air temp.

Stable

About 19 min.

RP125

HRP100

RP100

HRP71

RP71

When stabled,

is too low,

RP type: Outlet air temp. 45

Heating capacity(Peak)

+1 Condition Room temp. 20(D.B.) Outdoor temp. 2(D.B.)/1(W.B.) : Unit HRP100, Hi notch

5101520

About 50% CUT

Elapsed time(min.)

(Indoor PKA type)

WIDE HEATING RANGE

The heating range is expanded to -25: compared to RP type which is up to -20

Expanded

Up to -25



11~

-20



-25 -20 -15 -10 -5 0

RP type

HRP type

Outdoor wet-bulb temperature

CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. Max.30m(PUHZ-HRP71/100/125)

The refrigerant circuit with LEV(Linear Expansion Valve) and power receiver always control the optimal refrigerant level regardless of the length (30m max. and 5m min.) of piping. The additional refrigerant charging work during installation often causes problems. It is completely eliminated by chargelss 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

PUHZ-HRP·HA(2) can detect refrigerant leakage which may happen during a long period of use.

Page 8

SPECIFICATIONS

Service Ref.

Mode

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

OUTDOOR UNIT

Noise level

Dimensions

Weight Refrigerant

Charge

Oil (Model) Pipe size O.D.

Connection method

Between the indoor & outdoor unit

REFRIGERANT PIPING

/min(CFM

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

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

kg(lbs)

mm(in.) mm(in.)

dB dB

PUHZ-HRP71/100VHA

Single 50Hz, 230V

Linear Expansion Valve

ANB33FJCMT ANB33FJEMT

0.086+0.086 0.074+0.074

)

52 53

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

Munsell 3Y 7.8/1.1

Hermetic

2.5

Inverter

HP switch

LP switch

Discharge thermo

—

Plate fin coil

Propeller fan % 2

100(3,530)

Reverse cycle

950(37-3/8)

1,350(53-1/8)

120(265)

R410A

5.5(12.1)

1.40(FV50S)

9.52(3/8)

15.88(5/8) Flared Flared

Max. 30m Max. 75m

PUHZ-HRP71/100VHA2

Cooling

51 52

HeatingCooling Heating

Service Ref.

Mode

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

OUTDOOR UNIT

Noise level

Dimensions

Weight Refrigerant

Charge

Oil (Model) Pipe size O.D.

Connection method

Between the indoor & outdoor unit

REFRIGERANT PIPING

/min(CFM

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

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

kg(lbs)

mm(in.) mm(in.)

dB dB

PUHZ-HRP100/125YHA

3phase, 50Hz, 400V

Linear Expansion Valve

ANB33FJBMT ANB33FJDMT

0.086+0.086 0.074+0.074

)

52 53

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

Munsell 3Y 7.8/1.1

Hermetic

2.5

Inverter

HP switch

LP switch

Discharge thermo

—

Plate fin coil

Propeller fan % 2

100(3,530)

Reverse cycle

950(37-3/8)

1,350(53-1/8)

134(295)

R410A

5.5(12.1)

1.40(FV50S)

9.52(3/8)

15.88(5/8) Flared Flared

Max. 30m Max. 75m

PUHZ-HRP100/125YHA2

Cooling

HeatingCooling Heating

51 52

Page 9

DATA

6-1. REFILLING REFRIGERANT CHARGE (R410A : kg)

Service Ref.

PUHZ-HRP71VHA(2)

PUHZ-HRP100VHA(2) PUHZ-HRP100YHA(2)

PUHZ-HRP125YHA(2)

10m

5.1

20m

5.3

30m

6-2. COMPRESSOR TECHNICAL DATA

Service Ref.

Compressor model

Winding

Resistance

(  )

U-V

U-W

W-V

PUHZ-HRP71VHA

PUHZ-HRP100VHA

ANB33FJCMT

0.188

Piping length (one way)

5.5

40m

6.1

For pipe longer than 30m, additional charge is required.

PUHZ-HRP100YHA PUHZ-HRP125YHA

ANB33FJBMT

0.302

50m

6.7

(at 20)

60m

7.3

75m

7.9

Factory charged

5.5

Service Ref.

Compressor model

Winding

Resistance

(  )

U-V

U-W

W-V

PUHZ-HRP71VHA2

PUHZ-HRP100VHA2

ANB33FJEMT

0.188

(at 20)

PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

ANB33FJDMT

0.302

Page 10

6-3. NOISE CRITERION CURVES

SPL(dB)

PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA

MODE COOLING HEATING

LINE 52 53

PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2

COOLING

HEATING

MODE

SPL(dB)

51 52

LINE

PUHZ-HRP125YHA2

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

APPROXIMATE

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

MICROPHONE

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

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

APPROXIMATE

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

UNIT

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

1.5m

GROUND

Page 11

6-4. STANDARD OPERATION DATA

Representative matching

Mode

Capacity

To ta lElectrical circuitRefrigerant circuitIndoor side

Input

Indoor unit

Phase , Hz

Voltage

Current

Outdoor unit

Phase , Hz

Voltage

Current

Discharge pressure

Suction pressure

Discharge temperature

Condensing temperature

Sunction temperature

Ref. pipe length

Intake air temperature

Discharge air temperature

Intake air temperature

side

Outdoor

SHF

D.B.

W.B.

D.B.

W.B.

MPa



PEAD-RP71EA

Cooling

7,100

2.15

PEAD-RP71EA

1.55 1.55 2.62 2.62 2.62 2.62

PUHZ-HRP71VHA(2)

8.09

2.46

0.92

7.5

0.85

0.13

Heating

8,000

2.34

1 , 50

230

1 , 50

230

8.94

2.71

0.76

7.5

—

PEAD-RP100EA2 PEAD-RP125EA

Cooling

10,000

3.06

PEAD-RP100EA2 PEAD-RP125EA

PUHZ-HRP100VHA(2) PUHZ-HRP100YHA(2)

11.10/3.69

2.61

0.97

7.5

0.89

0.18

1 , 50

230

1/3 , 50

230/400

11.28/3.74

Heating

11,200

3.10

2.22

0.72

7.5

—

Cooling

12,500

3.89

1 , 50

230

PUHZ-HRP125YHA(2)

3 , 50

400

4.92

2.79

0.89

7.5

0.85

0.09

Heating

14,000

3.88

4.91

2.70

0.70

7.5

—

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 12

OUTLINES AND DIMENSIONS

PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA

(19)

2-U Shaped notched holes

(Foundation Bolt M10)

600175 175

Rear Air Intake

Installation Feet

330

417

Unit : mm

930

1,079

28 370 53 56

2-12 x 36 Oval holes

(Foundation Bolt M10)

Air Discharge

Terminal connection

950

Earth terminal

322

Left···Power supply wiring

Right···Indoor/Outdoor wiring

Service panel

Handle for moving

1350

+1 447

+1 443

371 635

Front piping cover

Rear piping cover

Bottom piping hole

(Knockout)

81 219

HRP·VHA

Drain hole

(5-W33)

14514522030 145

HRP·YHA

Side Air Intake

Piping and wiring connections

can be made from 4 directions:

front, right, rear and below.

4 PIPING-WIRING DIRECTIONS

FOUNDATION

Over 150mm

Over 10mm

500

Over

Over 10mm

Less than

500

Over

Service space

r 1000mm

Ove

Please secure the unit firmly

with 4 foundation (M10) bolts.

3 FOUNDATION BOLTS

Dimensions of space needed

for service access are

2 SERVICE SPACE

The diagram below shows a

basic example.

1 FREE SPACE (Around the unit)

(Bolts and washers must be

purchased locally.)

150

Over

shown in the below diagram.

FREE

Explantion of particular details is

given in the installation manuals etc.

Handle for moving

Side Air Intake

Rear Air Intake

Handle for moving

···Refrigerant GAS pipe connction (FLARE)W15.88(5/8 inch)

···Refrigerant LIQUID pipe connection (FLARE)W 9.52(3/8 inch)

Example of Notes

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





27Knockout)

Power supply wiring hole

(2-

Rear trunking hole

(Knockout)

45 40

Right trunking hole

(Knockout)

27Knockout)

Power supply wiring hole

(2-

Air intake

Right piping hole

(Knockout)

27Knockout)

Power supply wiring hole

(2-

Piping Knockout Hole Details

Front trunking hole

(Knockout)

27 92

73 63

Rear piping hole

(Knockout)

27 55

23 73 63

19 55

73 63 23

27 55

Front piping hole

(Knockout)

Page 13

PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

Unit : mm

1,079

930

(19)28 370

175

2-U Shaped notched holes

(Foundation Bolt M10)

600175

Rear Air Intake

Installation Feet

Side Air Intake

417

330

Terminal connection

Right··· Indoor/Outdoor wiring

53 56

2-12 x 36 Oval holes

Air Discharge

Left ····Power supply wiring

(Foundation Bolt M10)

950

Earth terminal

322

Handle for moving

Service panel

moving

Handle

for

Handle for moving

635

1350

371

+1 447

+1 443

HRP·VHA2

33)

Drain hole

(5-

14514522030 145

HRP·YHA2

Front piping cover

Rear piping cover

Bottom piping hole

(Knockout)

81 219

Piping and wiring connections

can be made from 4 directions:

front, right, rear and below.

4 PIPING-WIRING DIRECTIONS

FOUNDATION

Over

Over 150mm

Less than

500

Over

Over 10mm

500

Over

Service space

(Bolts and washers must be

purchased locally.)

shown in the below diagram.

150

Over

FREE

Please secure the unit firmly

with 4 foundation (M10) bolts.

3 FOUNDATION BOLTS

Dimensions of space needed

for service access are

2 SERVICE SPACE

Side Air Intake

Rear Air Intake

Handle for moving

9.52(3/8 inch)

Handle for moving

27Knockout)

Power supply wiring hole

(2-

Rear trunking hole

(Knockout)

Right trunking hole

(Knockout)

27Knockout)

Power supply wiring hole

Air intake

(2-

(Knockout)

Right piping hole

4540

27Knockout)

(2-

Power supply wiring hole

73 63

(Knockout)

Rear piping hole

27 55

23 73 63

19 55

73 63 23 27 92

27 55

Explantion of particular details is

given in the installation manuals etc.

The diagram below shows a

basic example.

1 FREE SPACE (Around the unit)

Over 10mm

Over 1000mm

···Refrigerant LIQUID pipe connection (FLARE)

···Refrigerant GAS pipe connction (FLARE) 15.88(5/8 inch)

Example of Notes

1 ···Indication of STOPVALVE connection location.

Piping Knockout Hole Details

Front trunking hole

(Knockout)

Front piping hole

(Knockout)

Page 14

WIRING DIAGRAM

PUHZ-HRP71VHA PUHZ-HRP100VHA

[LEGEND]

SYMBOL TB1 MC MF1, MF2 21S4 63H 63L Low Pressure Switch SV TH3,TH32,TH33 TH4 TH6 TH7 TH8 LEV-A, LEV-B,LEV-C DCL ACTM CB CY1,CY2

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

Solenoid Valve (Bypass Valve)

Thermistor<Outdoor Pipe>

Thermistor<Discharge> Thermistor<Outdoor 2-Phase Pipe> Thermistor<Outdoor> Thermistor<Heatsink> Electronic Expansion Valve

Reactor Active Filter Module Main Smoothing Capacitor Capacitor

NAME SYMBOL NAME SYMBOL NAME

P. B.

TABU/V/W TABS/T TABP1/P2/P TABN1/N2/N DS2, DS3 IPM

N.F.

LI / LO NI / NO EI, E2 52C

C.B.

SW1

SW4 SW5

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

Connection Terminal<DC Voltage> Connection Terminal<DC Voltage Diode Bridge

Power Module

Noise Filter Circuit Board Connection Terminal<L-Phase> Connection Terminal<N-Phase> Connection Terminal<Ground>

52C Relay

Controller Circuit Board

<Forced Defrost, Defect History Record

Switch Reset, Refrigerant Address>

Switch<Test Operation> Switch<Function Switch>

SW6 SW7 SW8 SW9

SWP

CN31 SS CNM CNMNT

CNVMNT

CNDM

LED1,LED2

F1~F4 X51,X52,X55

Switch<Model Select> Switch<Function Setup>

Switch<Function Setup> Switch Switch<Pump Down> Connector<Emergency Operation>

Connector<Connection for Option>

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)> LED<Operation Inspection Indicators>

Fuse< T6.3AL250V> Relay

MF1

MF2

C. B.

LEV-C

LEV-B

LEV-B (RED)

13 13 13

X52

LEV-C

(BLU)

CNVMNT

(WHT)

SV21S4

CNM

(WHT)

X55

SV2

(BLU)

CNMNT

(WHT)

CN52C (RED)

+1+

SW5SW8SW4 SWP

SW6SW1

141

CN31

221

X51

(WHT)

CN2

63L

(RED)

LED2

LEV-A

LEV-A (WHT)

LED1

CN4

(WHT)

21S4

(GRN)

TH3

(WHT)

TH4

(WHT)

63H

(YLW)

(WHT)

TH7 TH6 TH3 TH4

TH32

TH33

CNF1

(WHT)

TH33

(YLW)

CNF2

(WHT)

CNDC

(PNK)

CNS

(WHT)

t°t°t

4121

121

TH32

TH7/6

(BLK)

(RED)

TRANS

CNAC

(WHT)

P. B.

CNAF

(WHT)

CN2

IPM

(WHT)

7 1 2

(WHT)

1 2

(RED)

1 2

(WHT)

TABN

TABP

CN3

CN5

CN4

TABP2

RED

TABU

RED

UVW

TH8

WHT

RED

TABV

WHT

MS 3~

BLK

CNDC (PNK)

TABN1

BLK

TABW

TABT

BLU

DS3

TABS

WHT

DS2

TABP1

RED

TABN2

WHT

When M-NET adapter is connected

SW7

SW9

(WHT)

CNDM

CN51

(WHT)

CNAC2

CNAC1

(RED

(WHT

WHT

LO NO

)

LI NI

RED

ABS

52C

BLU

CN5

(WHT)

LED2

LED3

LED4

M-NET SUBSTRATE

CN2M (WHT)

LED5

TB7

M-NET

N. F.

CN52C

(RED

BLU

SW1

LED1

(BLK)

CN5

CND

(WHT)

)

SW11

SW12

BLK

M-NET ADAPTER

SYMBOL 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 : 1st digit> Switch<Address setting : 2nd digit> LED<Power Supply : DC5V> LED<Connection to Outdoor Unit> LED<Transmission : Sending> LED<Transmission : Recelving> LED<Power Supply : DC12V>

NAME

RED

BLK

DCL

BLK

ACTM

WHT

RED

N1 N2

WHT

RED

L N S1 S2 S3

POWER SUPPLY ~/N 230V 50Hz

BLU

YLW

GRN/YLW

INDOOR UNIT

ORN

BRN

CY1

CY2

TB1

1MODEL SELECT

MODEL

71V

OFF

100V

OFF

2. SW5 -1 to 5 : Function Switch

SW6

12345678

ON OFF

SW5-6+2

123456

Page 15

PUHZ-HRP100YHA PUHZ-HRP125YHA

[LEGEND]

SYMBOL TB1 TB2 Terminal Block<Indoor/Outdoor > MC MF1, MF2 21S4 63H 63L Low Pressure Switch SV TH3,TH32,TH33 TH4 TH6 TH7 LEV-A, LEV-B, LEV-C ACL1~ACL4 CB1, CB2 CK CY1, CY2 RS

M-NET ADAPTER

TB7 Terminal Block<M-NET connection > CN5 CND CN2M SW1 SW11

Terminal Block<Power Supply>

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

Solenoid Valve (Bypass Valve)

Thermistor<Outdoor Pipe>

Thermistor<Discharge> Thermistor<Outdoor 2-Phase Pipe> Thermistor<Outdoor> Electronic Expansion Valve

Reactor Main Smoothing Capacitor Capacitor Capacitor Rush Current Protect Resistor

Connector<Transmission> Connector<Power Supply> Connector<M-NET communication> Switch<Status of communication> Switch<Address setting: 1st digit>

MF1

MF2

TB2

INDOOR

UNIT

POWER SUPPLY 3N~ 400V 50Hz

NAME SYMBOL NAME SYMBOL NAME

SW12 Switch<Address setting. 2nd digit > LED1 LED2 LED3 LED4 LED5

TH33

CY1

CNS

(WHT)

C.B.

CY2

CNF1

(WHT)

121

TH33 (YLW)

CNF2

(WHT)

TRANS

CNDC (PNK)

BLK

YLW

ORN

P.B.

TB-U/V/W TB-L1/L2/L3 TB-P2 TB-C1 TB-N1 X52A

N.F.

LI1/LI2/LI3/NI LO1/LO2/LO3/NO

CONV.B.

L1-A1/IN L1-A2/OU L2-A2/OU L3-A2/OU

LED<Power Supply: DC5V> LED<Connection to Outdoor Unit> LED<Transmission: Sending> LED<Transmission: Receiving> LED<Power Supply: DC12V>

TH7 TH6 TH3 TH4

TH32

TH32 (BLK)

CNAC (WHT)

BLU

t°t°t°t

TH7/6 (RED)

4121

TH3 (WHT)

(WHT)

CN2

TH4

(WHT)

63H

(YLW)

P.B.

RED

Power Circuit Board Connection Terminal<U/V/W-Phase> Connection Terminal Connection Terminal Connection Terminal Connection Terminal 52C Relay Noise Filter Circuit Board Connection Terminal Connection Terminal Connection Terminal<Ground>GD1, GD3 Converter Circuit Board Connection Terminal<L1-Power Supply> Connection Terminal<L1-Power Supply> Connection Terminal<L2-Power Supply> Connection Terminal<L3-Power Supply> Connection TerminalN-IN Connection TerminalCK-OU

63L

63H

63L

(RED)

CN7

(WHT)

CN4

(WHT)

CN5

(RED)

X52A

BRN

N.F.

CNAC1

TB1

RED

WHT

BLK

BLU

GRN/YLW

LI1

LI2

LI3

BLK

(WHT)

GD1

<L1/L2/L3/N-Power Supply <L1/L2/L3/N-Power Supply

LEV-A LEV-B

LEV-A

LEV-B

(WHT)

(RED)

LED1

LED2

X52

21S4

(GRN)

SV21S4

CN2

(WHT)

TB-P2

WHT

RED

CB1 CB2 CK

LEV-C

1 14

LEV-C

(BLU)

X55

SV2

(BLU)

TB-N1

TB-C1

BLK

CNDC

GD3

(PNK)

BLK

3151

CNVMNT

(WHT)

CNM

(WHT)

TB-W

TB-V

TB-U

TB-L3

TB-L2

TB-L1

> >

CN4

CNMNT

(WHT)

221

X51

(WHT)

C.B.

SW1

SW4 SW5 SW6 SW7 SW8 SW9 SWP CN31 LED1, LED2 F1~F4 CNM CNMNT

CNVMNT

CNDM

CN3S CN51 SS X51,X52,X55

BLK

WHT

RED

BLK

WHT

RED

CNCT (RED)

WHT

Controller Circuit Board

Switch

<Forced Defrost, Defect History Record

Reset, Refrigerant Adress>

Switch<Test Operation> Switch<Function Switch> Switch<Model Select> Switch<Function Setup> Switch<Function Setup> Switch Switch<Pump Down> Connector<Emergency Operation> LED<Operatiion Inspection Indicators> Fuse<T6.3AL250V> Connector<A-Control Service Inspection Kit> Connector <Connect to Optional M-NET Adapter Board> Connector <Connect to Optional M-NET Adapter Board> Connector < Connection for Option Connector< Connection for Option> Connector< Connection for Option> Connector< Connection for Option> Relay

SW5SW8SW4 SWP

SW7

SW6SW1

SW9

CN31

1 3

CN3S

(WHT)

1 3

(WHT)

CNDM

CN51

(WHT)

+1MODEL SELECT

MODEL

100Y

125Y

2. SW5 -1 to 5 : Function Switch

CNAC2

(RED)

3121

LO1

LO2

LO3

(Contact Input)

When M-NET adapter is connected)

ABS

SW6

ON OFF

12345678

ON OFF

12345678

BLK

WHT

L3-A2

L2-OU

L3-OU

CONV.B.

CN7

(WHT)

L1-A1

L1-IN

RED

WHT

BLK

BLU

1331

CNL

(BLU)

WHT

ACL4

SW1

CN5

(WHT)

LED2

LED3

LED4

M-NET SUBSTRATE

2 1

CN2M

(WHT)

LED1

LED5

TB7

M-NET

SW5-6 +2

ON OFF

123456

ON OFF

123456

RED

L2-A2

L1-A2

L1-OU

N-IN

CK-OU

BLK

BLU

ACL1

ACL2

ACL3

CND

(WHT)

SW11

SW12

Page 16

PUHZ-HRP71VHA2 PUHZ-HRP100VHA2

[LEGEND]

SYMBOL TB1 MC MF1, MF2 21S4 SV 63H High Pressure Switch 63L Low Pressure Switch 63HS High Pressure Sensor TH3 Thermistor<Liquid> TH4 TH6 TH7 TH32 Thermistor<Suction> TH33 Thermistor<Ref. check> LEV-A, LEV-B,LEV-C

DCL CB CY1,CY2

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

Thermistor<Discharge> Thermistor<2-Phase> Thermistor<Ambient>

Electronic Expansion Valve

Reactor Main Smoothing Capacitor Capacitor

C.B.

MF1

MF2

CNS

(

WHT

NAME SYMBOL NAME SYMBOL NAME

TH7 TH3 TH4

TH33

TH6

TH32

t°

t° t° t°

CNF1

(

WHT

CNF2

(

CNDC

(

)

WHT

PNK

)

TH33

(

)

4121

3t°12131

TH7/6

TH3

TH32

YLW

)

(

RED

)

(

WHT

BLK

)

CNAC

(

WHT

)

(

TRANS

(

TH4 WHT

)

(

WHT

63H

63H YLW

CN2

(

RED

)

P. B .

U/V/W LI NI DCL1, DCL2 IGBT E1,E2,E3,E4

C.B.

SW1

SW4

SW5

SW6 SW7 SW8 SW9 SWP CN31

63HS

63L

63HS

(

WHT

63L

)

LED2

21S4

(

GRN

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

Connection Terminal< Recator Power Module Connection Terminal (Ground) Controller Circuit Board

Switch Reset, Refrigerant Address> Switch<Test Operation> Switch<Function Switch> Switch<Model Select> Switch<Function Setup> Switch<Function Setup> Switch Switch<Pump Down> Connector<Emergency Operation>

LEV-C

LEV-A LEV-B

LEV-A

)

(

WHT

LED1

CN4

(

WHT

)

LEV-B

)

(

RED

)

1 14

LEV-C

(

BLU

)

X52

13 13 13

SV21S4

N-Phase

<Forced Defrost, Defect History Record

When M-NET adapter is connected

CNDM

CN51

SW7

SW9

)

WHT

(

)

WHT

(

ABS

3151

CNVMNT

(

WHT

CNM

(

WHT

)

X55

SV2

(

BLU

CNMNT

)

(

WHT

CN52C

(

RED

)

1

SW5SW8SW4 SWP

SW6SW1

)

CN31

)

331

X51

(

WHT

)

SS CNM CNDM

LED1,LED2

F1~F4 X51,X52,X55

SW11

CN5

SW1

(WHT)

LED2

SW12

LED3

LED4

M-NET SUBSTRATE

CN2M

CND

(WHT)

LED1

LED5

TB7

M-NET

Connector<Connection for Option> Connector

<A-Control Service Inspection Kit Connector < Connected for Option (Contact Input)> LED<Operation Inspection Indicators>

Fuse<T6.3AL250V Relay

M-NET ADAPTER

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

Terminal Block Connector Connector Connector Switch Switch Switch LED LED LED LED LED

NAME

M-NET connection>

Transmission>

Power Supply>

M-NET communication>

Status of communication>

Address setting : 1st digit>

Address setting : 2nd digit>

Power Supply : DC5V>

Connection to Outdoor Unit>

Transmission : Sending>

Transmission : Recelving>

Power Supply : DC12V>

CN4

(

WHT

)

WHT

RED

BLK

RED

WHT

CN2

(

WHT

)

CNDC

(

PNK

)

DCL2

DCL

IGBT

DCL1

BLK

CN52C

(

RED

)

52C

BLU

RED

YLW

GRN/YLW

ORN

L N S1 S2 S3

INDOOR

POWER SUPPLY

/N 230V 50Hz

UNIT

BRN

P. B.

BLK

CNAC2

(

RED

)

BLK

RED

WHT

CNAC1

(

WHT

)

LINI

CY1 CY2

TB1

1MODEL SELECT

MODEL

71V

100V



2. SW5 -1 to 5 : Function Switch

SW6

ON OFF

12345678

ON OFF

12345678

ON OFF

SW5-62

123456

Page 17

PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

[LEGEND]

SYMBOL TB1 TB2 Terminal Block<Indoor/Outdoor > MC MF1, MF2 21S4 SV 63H 63L Low Pressure Switch 63HS High Pressure Sensor TH3 Thermistor<Liquid> TH4 TH6 TH7 TH32 Thermistor<Suction>

TH33 Thermistor<Ref. chech>

LEV-A, LEV-B, LEV-C

ACL1~ACL4

RS CB1, CB2 CK

Terminal Block<Power Supply>

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

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

Electronic Expansion Valve

Reactor Rush Current Protect Resistor Main Smoothing Capacitor Capacitor

C.B.

MF1

MF2

CNS

(WHT)

TB2

INDOOR UNIT

POWER SUPPLY 3N~ 400V 50Hz

NAME SYMBOL NAME SYMBOL NAME

TH7 TH3 TH4

TH33

CNF1 (WHT)

TH33

(

CNF2 (WHT)

CNDC (PNK)

YLW

ORN

BRN

TH6

TH32

t°

3t°12131

TH7/6

TH32

YLW

)

(

RED

(

BLK

)

TRANS

CNAC

(

WHT

)

t° t° t°

4121

TH3

)

(

WHT

)

TH4

(

WHT

(

CN2

(

WHT

)

63H

YLW

P.B.

N.F.

CONV.B.

63H

)

TB-U/V/W TB-L1/L2/L3 TB-P2 TB-C1 TB-N1 X52A

LI1/LI2/LI3/NI LO1/LO2/LO3/NO GD1, GD3

L1-A1/IN L1-A2/OU L2-A2/OU L3-A2/OU N-IN CK-OU

Power Circuit Board Connection Terminal<U/V/W-Phase> Connection Terminal Connection Terminal Connection Terminal Connection Terminal 52C Relay Noise Filter Circuit Board Connection Terminal Connection Terminal Connection Terminal<Ground> Converter Circuit Board Connection Terminal<L1-Power Supply> Connection Terminal<L1-Power Supply> Connection Terminal<L2-Power Supply> Connection Terminal<L3-Power Supply> Connection Terminal Connection Terminal

63HS

(

RED

63L

RED

LEV-A LEV-B

63HS

LEV-A

(

WHT

)

(WHT)

)

LED2

CN4

(WHT)

CN2

CN7

(WHT)

CN4

(WHT)

CN5

(RED)

X52A

LEV-B (RED)

1 14

LED1

221

LEV-C

(

BLU

X52

21S4

(GRN)

TB-P2

RED

CB1 CB2 CK

N.F.

CNAC1

(WHT)

TB1

RED

WHT

BLK

BLU

GRN/YLW

LI1

LI2

LI3

GD1

BLK

<L1/L2/L3/N-Power Supply <L1/L2/L3/N-Power Supply

LEV-C

3151

CNVMNT

CNMNT

(WHT)

CNM

(

WHT

)

X55

SV2

(BLU)

SV21S4

TB-W

TB-V

TB-U

TB-L3

TB-L2

TB-L1

TB-C1

TB-N1

BLK

WHT

CNDC

GD3

(PNK)

BLK

SW5SW8SW4 SWP

X51

(WHT)

BLK

WHT

RED

BLK

WHT

RED

CNCT (RED)

SW6SW1

BRN

> >

1

CN31

WHT

1331

CNDM

(BLU)

C.B.

SW1

SW4 SW5 SW6 SW7 SW8 SW9 SWP CN31 SS

LED1, LED2 CNM CNDM

F1~F4

X51,X52,X55

SW7

SW9

)

1 3

WHT

(

)

WHT

CN51

(

3121

CNL

CNAC2

(RED)

Controller Circuit Board Switch

<Forced Defrost, Defect History Record Reset, Refrigerant Adress> Switch<Test Operation> Switch<Function Switch> Switch<Model Select> Switch<Function Setup> Switch<Function Setup> Switch Switch<Pump Down> Connector<Emergency Operation> Connector< Connection for Option> LED<Operatiion Inspection Indicators> Connector<A-Control Service Inspection Kit> Connector < Connection for Option

Fuse<T6.3AL250V> Relay

When M-NET adapter is connected

ABS

1MODEL SELECT

MODEL



SW6

100Y

OFF

12345678

125Y

OFF

12345678

2. SW5 -1 to 5 : Function Switch

BLK

WHT

L3-A2

L3-OU

CN7

(WHT)

L1-A1

RED

LO1

RED

LO2

WHT

LO3

BLK

BLU

ACL4

(Contact Input)

SW11

SW1

CN5

(WHT)

LED2

SW12

LED3

LED4

M-NET SUBSTRATE

CND

CN2M

(WHT)

LED1

LED5

TB7

M-NET

SW5-62

ON OFF

123456

ON OFF

123456

RED

WHT

L2-A2

L1-OU

L2-OU

CONV.B.

N-IN

L1-IN

BLU

ACL1

ACL2

ACL3

L1-A2

CK-OU

BLK

M-NET ADAPTER

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: 1st digit>

SW12 Switch<Address setting. 2nd 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>

Page 18

WIRING SPECIFICATIONS

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

Outdoor unit model Outdoor unit power supply

Outdoor unit input capacity *1 Main switch (Breaker)

)

Outdoor unit power supply

. %

Indoor unit-Outdoor unit

ing

Indoor unit-Outdoor unit ear

Wir

Wire No

Remote controller-Indoor unit

size (mm

Outdoor unit L-N (single) Outdoor unit L1-N, L2-N, L3-N (3 phase) Indoor unit-Outdoor unit S1-S2 Indoor unit-Outdoor unit S2-S3

Circuit rating

Remote controller-Indoor unit

*1.

A breaker with at least 3 mm contact separation in each poles 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. Refer to 9-3. *3. The 10 m wire is attached in the remote controller accessory. *4. The figures 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 .

th *2

*4 *4 *4

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. (Design 60245 IEC 57)

3. Use an earth wire which is longer than other cables so that it wil not become disconnected when tension is applied.

Power supply

HRP71V, HRP100VHA

~/N (single), 50 Hz,

230 V

32 A

3 % Min. 4

% 1.5 (Polar

1 % Min. 1.5

2 % )

0.3 (Non-polar

AC 230 V

DC 24 V DC 12 V

HRP100VHA2

~/N (single), 50 Hz,

230 V

40 A

3 % Min. 6

3 % 1.5 (Polar)

1 % Min. 1.5

2 % 0.3 (Non-polar)

AC 230 V

DC 24 V DC 12 V

HRP100, 125Y

3N ~ (3phase), 50 Hz,

400 V

16 A

5 % Min. 1.5

3 % 1.5 (Polar)

1 % Min. 1.5

2 % 0.3 (Non-polar)

AC 230 V

DC 24 V DC 12 V

Isolator

A-Control

Outdoor Unit

3 poles isolator

A-Control

Indoor Unit

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.

Turn on the main power when the ambient temperature is -20 or higher. In below -20 condition, it needs at least 4hr standby to operate in order to warm the electrical parts.

1:1 system Electrical wiring Synchronized twin system Electrical wiring

• Synchronized twin

Indoor unit

1 2

S1 S2 S3

Unit power supply



 Earth leakage breaker  Wiring circuit breaker or

isolating switch

Outdoor unit



Indoor/outdoor unit connection cable

S1 S2 S3

Indoor unit

S1 S2 S3

Remote controller

Unit power



supply

 Earth leakage breaker  Wiring circuit breaker or

isolating switch

Outdoor unit



Indoor/outdoor unit connection cable

S1 S2 S3

Indoor unit

S1 S2 S3

Remote controller

Page 19

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

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 S3









L N







S1 S2 S3

1 2

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

Simultaneous twin system

* The optional indoor power supply terminal kits are required.



L N





 

S1 S2 S3



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

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 unit specifications 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)

ON OFF

Required

1 2 (SW8)







Electric heater (For models with heater)

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

Connectors (

BLUE

YELLOW

CND

Set the SW8-3 to ON.

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

the units according to the wiring method.

 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 

        

Inisial setting:

for indoor unit power supplied from outdoor unit)

ORANGE CND

Indoor unit

control board

Indoor unit power supply

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

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

Electric heater (For models with heater)

Separate indoor unit/outdoor unit power supplies

YELLOW

BLUE

YELLOW

Connectors

CND

Indoor unit

control board

ORANGE CND

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

(mm

Wiring

Indoor unit-Outdoor unit earth

Wire No. % size

Remote controller-Indoor unit

Indoor unit L-N *4

Indoor unit-Outdoor unit S1-S2 Indoor unit-Outdoor unit S2-S3

rating

Circuit

Remote controller-Indoor unit

*4 *4 *4

RP35~125

~/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

*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.

Page 20

9-3. INDOOR – OUTDOOR CONNECTING CABLE

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

Wire No. % Size ($)

Outdoor power supply

Max. 45m

Max. 50m

Max. 80m

Indoor unit-Outdoor unit

Indoor unit-Outdoor unit earth

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

Indoor/Outdoor separate power supply

Indoor unit-Outdoor unit

Indoor unit-Outdoor unit earth

+ The optional indoor power supply terminal kit is necessary.

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.

3 % 1.5 (polar)

1 % Min. 1.5

3 % 2.5 (polar)

1 % Min. 2.5

Wire No. % Size ($)

Max. 120m

2 % Min. 0.3

3 % 2.5 (polar) and S3 separated

1 % Min. 2.5

—

Page 21

9-4. M-NET WIRING METHOD

(Points to notice) (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 5cm. 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 x 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.

Group remote controller

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

(4) Ground 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.

M-NET transmission wire

Power supply unit for transmission wire

A-control remote controller

 Bad example (Multi spot grounding of shield wire)

Central remote controller

Power supply appliance

Refrigerant address 00

M-NET address 01

M-NET type outdoor unit

A-control remote controller

M-NET type outdoor unit

Refrigerant address 00

M-NET address 02

M-NET type outdoor unit

Refrigerant address 00

M-NET address 03

A-control remote controller

Good example 1 (Single spot grounding of shield wire)

Central remote controller

M-NET transmission wire

Good example 2 (Single spot grounding of shield wire)

Central remote controller

M-NET transmission wire

If there are more than 2 grounding spots on the shield wire, noise may enter into the shield wire because the ground wire

and shield wire form one circuit and the electric potential difference occurs due to the impedance difference among ground-

ing spots. In case of single spot grounding, noise does not enter into the shield wire because the ground wire and shield

wire do not form one circuit. To avoid communication errors caused by noise, make sure to observe the single spot grounding method described in the

installation manual.

Power supply appliance

M-NET type outdoor unit

Page 22

M-NET wiring

(1) Use 2-core x 1.25mm

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(M1) terminal and the other to B(M2). 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(M1), B(M2), S) on M-NET terminal block should be individually wired to the other

M-NET terminal block

ABS

Transmission

wire

Ground wire

Shield part

outdoor unit’s terminal, i.e. A(M1) to A(M1), B(M2) to B(M2) and S to S. In this case, choose one of those outdoor units

and drive a screw to fix an ground 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 ones digit and SW12 for tens digit), which is located on the M-NET board of outdoor unit. (Initial setting: all addresses are set to “0”.)

M-NET Address No.

SW11

Switch setting

ones digit

SW12 tens digit

9-4-2. Refrigerant address setting

In case of multiple grouping system (multiple refrigerant circuits in one 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”.)]

Refrigerant address

OFF

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.

Group A Group B Group C

System controller

Power supply unit for transmission wire

Refrigerant address 00

M-NET address 01

A-control remote controller

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

Group A Group B

System controller

Power supply unit for transmission wire

Refrigerant address 00

M-NET address 01

A-control remote controller

Refrigerant address 00

M-NET address 02

A-control remote controller

Refrigerant address 01

M-NET address 02

Refrigerant address 01

M-NET address 03

TB5

A-control remote controller

Refrigerant address 00

M-NET address 04

Refrigerant address 00

M-NET address 04

A-control remote controller

Refrigerant address 01

M-NET address 03

Refrigerant address 02

M-NET address 05

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”.

Page 23

10 REFRIGERANT SYSTEM DIAGRAM

PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

Refrigerant GAS pipe connection (5/8 inch)

Refrigerant LIQUID pipe connection (3/8 inch)

Ball valve

Linear expansion valve B

Stop valve (with service port)

Strainer #50

Charge plug (Low pressure)

Strainer #100

Solenoid valve (Four-way valve)

Strainer #100

Power receiver

Linear expansion valve C

Charge plug (High pressure)

Muffler

Low pressure switch 63L

Strainer #100

High pressure sensor (63HS) (only for HRP·HA2)

High pressure switch 63H

Thermistor TH32 (Outdoor pipe)

Thermistor TH4 (Discharge)

Compressor

Injection port

Heat interchange circuit

Heat exchanger

Strainer #100

Linear expansion valve A

Refrigerant flow in cooling Refrigerant flow in heating

Thermistor TH7 (Outdoor)

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

Distributor

Thermistor TH33 (Outdoor pipe)

Bypass valve

Restrictor valve

Strainer #100

Replace filter

Page 24

10-1. Refrigerant recovering (pump down)

Perform the following procedures to recover the refrigerant when moving the indoor unit or the outdoor unit. 1Turn on the power supply (circuit breaker). wWhen 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.

2After the liquid 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.

wSet 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.

3Because the unit automatically stops in about 2 to 3 minutes after the refrigerant recovering operation (LED1 is not lit and

LED2 is lit), be sure to quickly close the gas stop valve. w In case the outdoor unit is stopped when LED1 is lit and LED2 is not lit, open the liquid stop valve completely, and then

repeat step 2 3 minutes later.

w If the refrigerant collecting operation has been completed normally (LED1 is not lit and LED2 is lit), the unit will remain

stopped until the power supply is turned off.

4Turn off the power supply (circuit breaker).

10-2. Unit replacement operation

When reusing the existing pipes that carried R22 refrigerant for the HRP71, HRP100 and HRP125 models, replacement operation must be performed before performing a test run.

1If new pipes are used, these procedures are not necessary. 2During replacement operation, “C5” is displayed on “A-Control Service Tool(PAC-SK52ST)”.

Replacement operation procedures

1Turn on the power supply. 2Set DIP switch SW8-2 on the control board of the outdoor unit to ON to start replacement operation.

• The replacement operation is performed using the cooling system. Cool air will flow from the indoor unit during the replacement operation.

• During the replacement operation, control board of the outdoor unit blink together.

3Replacement operation requires at least 2 hours to complete.

• After setting switch SW8-2 to ON, the unit automatically stops after 2 hours.

• Replacement operation can be performed repeatedly by setting switch SW8-2 from OFF to ON. Make sure to perform

the operation more than 2 hours. (If the operation is performed less than 2 hours, the existing pipes cannot be cleaned enough and the unit may be damaged.)

• If replacement operation is performed over 2 hours, this action is recorded into nonvolatile memory of control board.

4Set switch SW8-2 to OFF. (Replacement operation is completed.)

wThe unit can be operated normally by remote controller even if SW8-2 remains ON. wIf the indoor temperature is less than 15:, the compressor will operate intermittently but the unit is not faulty.

TEST RUN

is displayed on the remote controller and LED1 (green) and LED2 (red) on the

10-3. 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.

<SW4>



ON OFF



 Stop  Operation  Cooling  Heating

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.)

Page 25

11 TROUBLESHOOTING

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.

Unit conditions at service

The trouble is reoccurring.

The trouble is not reoccurring.

Error code

Displayed

Not displayed

Logged

Not logged

Actions to be taken for service (summary)

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

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

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 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.

according to “11-5. Troubleshooting

by inferior

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.

wDon’t 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 requires higher ceiling settings or power failure automatic recovery, make proper changes of set-

tings referring to the description of “Selection of Functions through Remote Controller”.

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

Page 26

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

Displays the remaining test run time.





[TEST] button



Operating procedures

1. Turn on the main power supply.

2. Press TEST button twice.

3. Press OPERATION SWITCH button.

4. Press AIR DIRECTION button.

5. Check the outdoor unit fan for correct running.







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 TEST RUN appears on the screen.

Cooling mode: Heating mode: Check if warm air blows. (It takes a little while until warm air blows.)

Check for correct motion of auto-vanes.

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 if cool air blows and water is drained.

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

Pipe (liquid) temperature

7. Register the contact number.

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

• 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 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 flash. 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.

Symptoms in test run mode

Remote Controller Display

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.

OUTDOOR BOARD LED Display

< > indicates digital display.

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

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

system startup. (Normal)

• Incorrect connection of outdoor terminal block (L S1, S2, S3.)

• Outdoor unit’s protection device connector is open.

Cause

1, L2, L3 and

alternately. <F3, F5, F9>

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

• Remote controller transmission wire is short.

• There is no outdoor unit of address 0. (Address is other than 0.)

• Remote controller transmission wire is open.

• After canceling function selection, operation is not possible for about 30 seconds. (Normal)

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

alternately. <EA. Eb>

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

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

LCD

Abnormality of room temperature thermistor

Abnormality of pipe temperature thermistor/Liquid

Abnormality of drain sensor/ Float switch connector open

Drain overflow protection is working.

Freezing/overheating protection is working.

Abnormality of pipe temperature

Abnormality of pipe temperature thermistor/Cond./Eva

P9 Fb

Abnormality of indoor controller board

Contents of inferior phenomena

LCD

Malfunction outdoor unit

U1~UP

Malfunction

F3~F9 E0~E5

Remote controller transmitting error Indoor/outdoor unit communication error

E6~EF

No error history

---No applied unit

FFFF

Forced compressor stop(due to water leakage abnormality)

Contents of inferior phenomena

outdoor unit

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

(microcomputer power supply)

LED1

(remote controller)

LED2

(indoor/outdoor communication)

LED3

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

Blinks when indoor and outdoor unit are communicating.

Page 27



,



ON/OFF

MODE

CHECK

TEST RUN

SET

TEST RUN

FAN

VAN E

LOUVER

RESET

CLOCK

TEMP

AUTO STOP

AUTO START

min





Test run [for wireless remote controller]

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

(Start this operation from the status of remote controller display

turned off.)

TEST RUN

A 3 Press the

check whether cool air is blown out from the unit.

4 Press the

check whether warm air is blown out from the unit.

5 Press the

from the unit.

6 Press the

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.

TEST RUN

button twice continuously.

and current operation mode are displayed.

MODE

( ) button to activate

MODE

( ) button to activate

FAN

button and check whether strong air is blown out

VANE

button and check whether the auto vane operates

COOL

HEAT

mode, then

Page 28

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 button.

ON/OFF















Error code (2 or 4 digits)

(Alternating Display)



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



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 will change as shown below.

CHECK

button twice within 3 seconds. The display content

Unit number or refrigerant address to be diagnosed

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]

and

[15].

The refrigerant address will begin to blink approximately 3 seconds after being selected and the self-diagnosis process will begin.



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.)

(Alternating Display)

Error code (2 or 4 digits)



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



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

Page 29



Press the

address or refrigerant address will blink.



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



Press the



Press the

ON/OFF

CHECK

ON/OFF

button twice within 3 seconds. The self-diagnosis

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

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

start of self-diagnosis.

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.

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.

Power on indicator



Switch to the remote controller self-diagnosis mode.



Press the

change as shown below.

CHECK

button for 5 seconds or more. The display content will



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.

[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.

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

The remote controller must be replaced with a new one.

(Error display 3)

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.

ing circuit is defective.

"ERC" and the number of data errors are displayed. © Data error has occurred.

When the number of data errors is "02":

Transmission data from remote controller

Transmission data on transmission path



To cancel remote controller diagnosis



Press the

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

CHECK

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

Page 30

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

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]

CHECK

display

ON/OFF button

CHECK

button

ON/OFF

MODE

CHECK

TEST RUN

SET

CHECK

FAN

VAN E

LOUVER

RESET

TEMP

AUTO STOP

AUTO START

CLOCK

min

Refrigerant address display

Temperature button

HOUR button

1. Press the CHECK button twice.

2. Press the temperature buttons.

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

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

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

• 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 lamp blinks, and the error code is output. (It takes 3 seconds at most for error code to appear.)

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

• The check mode is cancelled.

Page 31

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

Beeper sounds

OPERATION INDICATOR lamp blink pattern

Beep

Self-check starts. (Start signal received)

Beep Beep Beep Beep Beep Beep

1st2nd3

Off

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

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

0.5 sec.

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

[Output pattern B]

Beeper sounds

OPERATION INDICATOR lamp blink pattern

Beep Beep Beep Beep Beep

1st2nd3

Off

Self-check starts. (Start signal received)

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

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

[Output pattern A] Errors detected by indoor unit

Wireless remote controller

Wired remote controller

Beeper sounds/OPERATION

INDICATOR lamp blinks Check code

(Number of times)

1P1

P2 Pipe (TH2) sensor error P9 Pipe (TH5) sensor error

3E6,E7

Intake sensor error

Indoor/outdoor unit communication error

4 P4 Drain sensor error/Float switch connector open

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

10 11

–

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

–

E0, E3

Remote controller transmission error

– E1, E2 Remote controller control board error

1st2

Off

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

· · · Repeated

Beep Beep

1st2

Off

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

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

· · · Repeated

Symptom Remark

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

[Output pattern B]

Wireless remote controller

Beeper sounds/OPERATION

INDICATOR lamp blinks Check code

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

Wired remote controller

Symptom Remark

(Number of times)

2 3 4 5

7 8 9

12 13 14

UP U3,U4 UF U2

U1,Ud

U5 U8 U6 U7

U9,UH

– –

Others

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

the OPERATION INDICATOR lamp does not come on,

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

Compressor overcurrent interruption Open/short of outdoor unit thermistors Compressor overcurrent interruption (When compressor locked) Abnormal high discharging temperature/insufficient refrigerant Abnormal high pressure (63H worked)/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

– –

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

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

there are no error records.

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

*2 If 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.

Page 32

11-4. SELF-DIAGNOSIS ACTION TABLE

Error Code

None —

Abnormal point and detection method

1 No voltage is supplied to termi-

nal block(TB1) of outdoor unit.

a) Power supply breaker is b) Contact failure or disconnec terminal

c) Open phase (L or N phase)

2 Electric power is not charged to

power supply terminal of outdoor power circuit board.

a) Contact failure of power b) Open phase on the outdoor HRP71, 100VHA :

3 Electric power is not supplied

to outdoor controller circuit board.

a) Disconnection of connector

4 Disconnection of reactor (DCL

or ACL)

5 Disconnection of outdoor noise

filter circuit board or parts failure in outdoor noise filter circuit board

As for HRP71, 100VHA, it is

especially needed to check the resistance RS1 on the noise filter circuit board.

6 Defective outdoor power circuit

board

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

Case

turned off. tion of power supply

supply terminal power circuit board Disconnection of connector

TABT or TABS HRP71, 100VHA2 : Disconnection of connector LI or NI

(CNDC)

Judgment and action

1 Check following items.

a) Power supply breaker b) Connection of power supply terminal block (TB1) c) Connection of power supply terminal block (TB1)

2 Check following items.

a) Connection of power supply terminal block (TB1) b) Connection of terminal on outdoor

power circuit board HRP71, 100VHA : Check connection of the connector TABT or

TABS. Refer to 11-9. HRP71, 10VHA2 : Check connection of the connector LI or NI. Refer to 11-9. 3 Check connection of the connector (CNDC)

on the outdoor controller circuit board.

Check connection of the connector, CNDC on

the outdoor power circuit board(V)/the noise filter(Y). Refer to 11-9.

4 Check connection of reactor. (DCL or ACL) HRP71, 100VHA : Check connection of “L1” and “L2” on the active filter module.(ACTM) Refer to 11-9. HRP71, 100VHA2 : Check connection of "DCL1" and "DCL2" 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.

(5202)

(5201)

63L connector open

Abnormal if 63L connector circuit is open for 3 minutes continuously after power supply. 63L: Low-pressure switch

63H connector open

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

7 Defective outdoor controller circuit board

1 Disconnection or contact failure

of 63L connector on outdoor controller circuit board

2 Disconnection or contact failure

of 63L

3 63L is working due to refriger-

ant leakage or defective parts.

4 Defective outdoor controller circuit board

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

7 Replace controller board (When items above

are checked but the units can not be repaired).

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

2 Check the 63L side of connecting wire. 3 Check refrigerant pressure.

Charge additional refrigerant. Check continuity by tester. Replace the parts if the parts are defective.

4 Replace 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 33

Error Code

(4119)

Abnormal point and detection method Judgment and action

2 connector open

Abnormal if both 63H and 63L connector circuits are open for three minutes continuously after power supply.

63H: High-pressure switch 63L: Low-pressure switch

1 Disconnection or contact failure

of connector (63H,63L) on outdoor controller circuit board. 2 Disconnection or contact failure

of 63H, 63L 3 63H and 63L are working due

to defective parts. 4 Defective outdoor controller

board.

Case

1 Check connection of connector (63H,63L) on outdoor controller circuit board. Refer to 11-9. 2 Check the 63H and 63L side of connecting

wire. 3 Check continuity by tester. Replace the parts if the parts are defective. 4 Replace outdoor controller circuit board.

(6844)

(6845)

Indoor/outdoor unit connector miswiring, excessive number of units (4 units or more)

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 the number of

connected indoor units as “4 units or

more”.

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 4 or more indoor units are connected to one outdoor unit. 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: 80m (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 34

Error Code

(1302)

Abnormal point and detection method

High pressure (High-pressure switch 63H worked)

Abnormal if high-pressure switch 63H worked ( w ) during compressor operation. w 4.15 MPa

63H: High-pressure switch

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

Judgment and action

1~6 Check indoor unit and repair defectives.

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.

(1102)

(5104)

High discharging temperature

(1) Abnormal if discharge temperature ther-

mistor (TH4) exceeds 125: or 110: continuously for 5 minutes.

Abnormal if discharge temperature ther-

mistor (TH4) exceeds 110: or more continuously for 30 seconds after 90 seconds have passed since the defrosting operation started.

(2) Abnormal if discharge superheat (Cooling: TH4 – TH5 / Heating: TH4 –

TH6) (V/YHA)

(Cooling: TH4 – T63HS / Heating: TH4 –

63HS) (V/YHA2)

exceeds 70: continuously for 10 min-

utes.

Open/short circuit of discharge temperature thermistor (TH4)

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.)

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

6 Clogging with foreign objects in

refrigerant circuit

w Clogging occur in the parts

which become below freezing point when water enters in refrigerant circuit.

1 Disconnection or contact failure of connector (TH4) on

the outdoor controller circuit board

2 Defective thermistor 3 Defective outdoor controller

circuit 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 turned on again.

When U3 is displayed, refer to “Judgement

and action” for U3. 5 Check linear expansion valve. Refer to 11-6. 6 After recovering refrigerant, remove water

from entire refrigerant circuit under vacuum more than 1 hour.

1 Check connection of connector (TH4) on the

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

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

Page 35

Error Code

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

(TH32:5105) (TH33:5105)

Abnormal point and detection method

Open/short of outdoor unit thermistors (TH3, TH32, TH33, TH6, TH7, and TH8)

Abnormal if open or short is detected during compressor operation. Open detection of thermistors TH3, TH32, TH33 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 11-10.)

WHRP100, 125Y

Heatsink thermistor(TH8) is in the power module.

Case

1 Disconnection or contact failure

of connectors Outdoor controller circuit board TH3, TH32, TH33, TH7/6

Outdoor power circuit board

( )

CN3

2 Defective thermistor 3 Defective outdoor controller

circuit board

: :

Judgment and action

1 Check connection of connector (TH3, TH32,

TH33, TH7/6) 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, TH32, TH33, TH6,TH7,TH8). Refer to 11-9.

2 Check resistance value of thermistor (TH3,

TH32, TH33, 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, TH32, TH33, TH6 and TH7. Refer to 11-8.

(4230)

(4250)

Symbol Name

TH3, TH32, TH33

TH6 TH7 TH8 TH8 – 35 or below 170 or above

Temperature of heatsink

Abnormal if heatsink thermistor(TH8) detects temperature indicated below. HRP71V ·········································84: HRP100V ·········································84: HRP100Y ·········································95: HRP125Y ·········································95:

Power module

Check abnormality by driving power module in case overcurrent is detected. (UF or UP error condition)

Internal thermistor HRP100, 125YHA(2)/HRP71, 100VHA2

Thermistor <Outdoor pipe>

Thermistor <Outdoor 2-phase pipe>

Thermistor <Outdoor>

Thermistor <Heatsink> HRP71, 100VHA

Thermistors

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 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

Open detection Short detection

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

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.

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.

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

102 or above

(1520)

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 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

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 36

Error Code

(4400)

(4220)

(1504)

(1302)

Abnormal point 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.

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 (HRP71, 100V only)

• Instantaneous decrease of DC bus voltage

HRP71, 100V : 200V,

HRP100, 125Y : 350V

• Increase of DC bus voltage to HRP71, 100V : 400V HRP100, 125Y : 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.

Overheat protection

Abnormal if outdoor pipe thermistor (TH3), condensing temperature T

63HS (only V/

YHA2) detects 70: or more during compressor operation.

Abnormal pressure of pressure sensor (63HS) (Only for HRP·HA2)

Abnormal if pressure sensor (63HS) detects 0.1 MPa or less. Detection is inoperative for 3 minutes after compressor starting and 3 minutes after and during defrosting.

Case

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

1 Decrease of power supply voltage 2 Disconnection of compressor

wiring

3 Defective noise filter circuit

board (HRP71, 100VHA)

4 Disconnection or loose connec-

tion of CN52C(HRP71, 100V)

5 Defective ACT module (HRP71,

100VHA)

6 Defective ACT module drive

circuit of outdoor power circuit board (HRP71, 100V)

7 Disconnection or loose connec-

tion of CNAF (HRP71, 100VHA) 8 Disconnection or loose

connection of CN5 on the

outdoor power circuit board 9 Defective 52C drive circuit of

outdoor power circuit board (HRP100, 125Y) 0 Disconnection or loose

connection of CN2 on the

outdoor power circuit board 1 Defective outdoor converter cir-

cuit board (HRP100, 125Y)

Defective outdoor fan (fan

motor) or short cycle of outdoor

unit during coling operation 2 Defective outdoor pipe thermistor (TH3), condens-

ing temperature T63HS (only

V/YHA2) 3

Defective outdoor controller board

1 Disconnection or contact fail-

ure of connector (63HS) on the outdoor controller circuit board

2 Defective pressure sensor 3 Defective outdoor controller cir-

cuit 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.)

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 noise filter circuit board. (HRP71, 100VHA)

4 Check CN52C wiring. 5 Replace ACT module. (HRP71, 100VHA) 6 Replace outdoor power circuit board.

(HRP71, 100V)

7Check CNAF wiring. (HRP71, 100VHA)

8 Check CN5 wiring on the outdoor power

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

(HRP100, 125Y) 0 Check CN2 wiring on the outdoor power

circuit board. Refer to 11-9. 1 Replace outdoor converter circuit board.

(HRP100, 125Y)

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 Check connection of connector (63HS) on

the outdoor controller circuit board.

Check breaking of the lead wire for thermis-

tor (63HS). 2 Check pressure by microcomputer. (Prssure sensor/ 63HS) (SW2: Refer to 11-10.) 3 Replace outdoor controller board.

(4100)

Compressor overcurrent interruption (When compressor locked)

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

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

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

3 Correct the wiring (U

compressor.

•V•

W phase) to

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

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

Page 37

Error Code

(5300)

(1300)

Abnormal point and detection method Judgment and action

Current sensor error or input current error

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

• Abnormal if 38A (HRP71, 100VHA)/40A (HRP71, 100VHA2) of input current is detected or 34A (HRP71, 100VHA)/37A (HRP71, 100VHA2) or more of input current is detected for 10 seconds continuously.

Low pressure (63L worked)

Abnormal if 63L is worked (under

-0.03MPa) during compressor operation. 63L: Low-pressure switch

1 Disconnection of compressor

wiring 2 Defective circuit of current sensor on outdoor power circuit board 3 Decrease of power supply volt-

age

1 Stop valve of outdoor unit is

closed during operation.

2 Disconnection or loose con-

nection of connector (63L) on outdoor controller board

3 Disconnection or loose connec-

tion of 63L

4 Defective outdoor controller

board

5 Leakage or shortage of refriger-

ant

6 Malfunction of linear expansion

valve

Case

1 Correct the wiring (U•V•W phase) to compressor. Refer to 11-9 ( Outdoor power

circuit board).

2 Replace outdoor power circuit board. 3 Check the facility of power supply.

1 Check stop valve. 2~4 Turn the power off and on again to check

if F3 is displayed on restarting. If F3 is displayed, follow the F3 processing direction.

5 Correct to proper amount of refrigerant. 6 Check linear expansion valve.

Refer to 11-6.

(4210)

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)

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

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 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 indoor/outdoor fan. 5 Solve short cycle. 6 Replace outdoor controller circuit board.

W Before the replacement of the outdoor con-

troller 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.

7 Check compressor. Refer to 11-6. 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 controllers 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.

c) When "RCE3" or "ERC00-66" is displayed,

noise may be causing abnormality. * If the unit is not normal after replacing

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

Page 38

Error Code

Abnormal point 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)

Case

1 Defective remote controller

1 2 remote controller are set as

“main.” (In case of 2 remote con trollers) 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 control-

ler.

Judgment and action

1 Replace remote controller.

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-

trollers have no problem. Turn the power off, and on again to check. When becoming abnormal again, replace

indoor controller board. b)When “RC NG” is displayed, replace

remote controller. c)When “RC E3” or “ERC 00-66” is dis-

played, noise may be causing abnormal-

ity.

(6840)

(6841)

(6607

6608)

(0403)

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.

Non defined error code

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

Serial communication error

1 Abnormal if serial communication

between outdoor controller circuit board and outdoor power circuit board is defective.

2 Abnormal if communication between out-

door controller circuit board and M-NET board is not available.

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 Noise has entered transmission

wire of remote controller.

2 Noise has entered indoor/ out-

door unit connecting wire.

3 Outdoor unit is not inverter

models.

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 Check disconnection or looseness of indoor/

outdoor unit connecting wire of indoor or outdoor 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.

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 inverter type out-

door 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.

Page 39

Error Code

Abnormal point and detection method Judgment and action

Freezing/overheating protection is working

Overheating protection <Heating mode>

Abnormal if condensing temperature of pressure sensor (63HS) detects Tcond. : or more and compressor operation frequency is less than or equal to 25 Hz. Detection is inoperative during defrosting.

1 Overcharge of refrigerant 2 Defective refrigerant circuit

(clogs)

Malfunction of linear expansion valve

4 Reduced water flow

· Clogged filter

· Leakage of water

5 High temperature

Case

12 Check operating condition of refrigerant

circuit.

3 Check linear expansion valve. 45 Check water piping.

· Over-load

· Inlet water is too warm.

6 Defective water pump

6 Check water pump.

w4~6 is in the case that the unit

is used as Air to water.

age-a

Tcond

stage-g

stage-c

stage-d

stage-e

stage-f

stage-b

-18 -17 -15 -14 -12 -11 -9 -8 -6 -5 -3 -2

stage-a stage-b stage-c stage-d stage-e stage-f stage-g

Tcond

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.

It takes at least 9 minutes to detect.

Note 1) Note 2) Abnormality P8 is not detected in

drying mode.

Cooling range : Indoor pipe temperature

(TH2 or TH5) – room temperature (TH1) [ -3 :

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 : [ (Condenser/

Evaporator temperature(TH5) – room temperature(TH1))

Ambient temperature (TH7)

63 62 61 60 59 57 51

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 /

1~4 Check pipe <liquid or condenser / evapo-

rator> 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.

evaporator> thermistor

• Defective refrigerant circuit

2 Converse connection of extension pipe (on plural units

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

Conduct temperature check with outdoor controller circuit board after connecting

(

‘A-Control Service Tool(PAC-SK52ST)’.

Temperature display of indoor liquid pipe Indoor 1

1234 56

(on plural units connection) 4 Defective detection of indoor

room temperature and pipe

<condenser / evaporator> temperature thermistor

Temperature display of indoor liquid pipe Indoor 2

1234 56

5 Stop valve is not opened completely.

A-Control Service Tool SW2 setting

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

[ ]

Temperature display of indoor condenser/ evaporator pipe Indoor 1

OFF

123456

Temperature display of indoor condenser/ evaporator pipe Indoor 2

123456

)

OFF

Page 40

<M-NET communication error>

Error Code Abnormal point and detection method Case Judgment and action

(6600)

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.

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.

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

Search the unit with same address as abnormality occurred. If the same address is found, 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 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

Overtime error by signal collision damage

1. Abnormal if transmitting signal 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.

1 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 collides each other.

2 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.

2 Transmission quantity has

increased and transmission of signal is not possible because there was wiring mistake of terminal block for transmission wire (TB3) and terminal block for central control (TB7) in out-

door 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, 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.

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 41

Error Code Abnormal point and detection method Case Judgment and action

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).

(6607)

2. If displayed address or attribute is outdoor 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).

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

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

(12m)

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 (1 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 42

From the previous page.

Error Code Abnormal point and detection method Case Judgment and action

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).

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 nonexistent.

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 43

Error Code Abnormal point and detection method Case Judgment and action

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).

(6608)

1 Transmitting condition is

repeated fault because of noise and the like.

2 Extension of transmission wire

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

• Maximum distance

•

Remote controller line

3 Extension 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

....

1.25mm2 or more

....

200m

(12m)

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.

11-5. 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

1Check 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 No.3 below. 2Check the following.

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

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

2. “PLEASE WAIT” display is remained on the remote controller.

3. When pressing 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.

1Normal operation 2Self-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. 4Check LED display on outdoor controller circuit board. Refer to 11-10. Check protection device connector (63L and 63H) for contact failure. Refer to 11-9.

1Normal operation

Page 44

Phenomena

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.

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.

Factor

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

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.

3Factor 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

Countermeasure

1Check the pair number settings.

1Normal operation 2Normal operation

3Check the phenomena of No.2. 1 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. 2Open suction 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 shield.

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 tempera-

ture and opening.

Check pipe connections for gas leakage.

3Check the insulation. 4Open suction 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 pres-

sure.

Clean the heat exchanger.

6Remove the shield. 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 45

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

Diagnosis flow Cause

Check the display time of “PLEASE WAIT”

after turning on the main power.

6 minutes or more

Check the LED display of the outdoor controller circuit board.

2 minutes

How long is “PLEASE WAIT”

kept being displayed on the

remote controller?

2 to 6 minutes

Are any error codes

displayed on the

remote controller?

YES

or less

“PLEASE WAIT”

• will be displayed during the start-up

diagnosis after turning

on the main power.

Inspection method and troubleshooting

• Normal. The start-up diagnosis will

be over in around 2 minutes.

Are any error codes

displayed on the LED?

YES

• Miswiring of indoor/ outdoor connecting wire

• Breaking of indoor/ outdoor connecting wire (S3)

• Defective indoor controller board

• Defective outdoor controller circuit board

• Defective indoor controller board

• Defective remote controller

• 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.

Page 46

Symptoms: Nothing is displayed on the remote controller 

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

Diagnosis flow Cause

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.

AC 198V to AC 264V?

YES

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

AC 198V to AC 264V?

YES

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

Inspection method and troubleshooting

• Check the power wiring to the outdoor unit.

• Check the breaker.

Check the voltage of indoor controller board (CN2D).

DC 12V to DC 16V?

YES

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

DC 12V to DC 16V?

YES

AC 198V to AC 264V?

YES

• Bad wiring of the outdoor controller board

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

• Bad wiring of the outdoor controller board

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

• Defective indoor controller board

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

• 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.

• 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.

• Replace the indoor controller board.

Check if there is miswiring

• or breaking of wire.

• Defective indoor power board

• Replace the indoor power board.

Page 47

Symptoms: Nothing is displayed on the remote controller 

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

Diagnosis flow Cause

Check the voltage between S1 and

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

of the outdoor unit.

AC 198V to AC 264V?

YES

Check the status of the indoor controller board LED3 display.

Blinking.

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

Is the refrigerant address “0”?

YES

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

S2 on the terminal block (TB4)

Not lighting.

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

Are there looseness or

disconnection of the indoor/

outdoor connecting wire?

YES

• Breaking or poor contact of the indoor/ outdoor connecting wire

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

Inspection method and troubleshooting

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

connecting wire.

• Set the refrigerant

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

Is anything displayed?

Displayed.

Is “EA” or “Eb” displayed?

YES

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

DC 17V to DC 28V?

YES

Not displayed.

Is “E8” displayed?

Can the unit be restarted?

Can all the indoor

unit be operated?

YES

• Defective outdoor controller circuit board

YES

• Defective outdoor controller circuit board

• Defective indoor controller board

• Influence of electromagnetic noise

• Defective outdoor power circuit board

• Defective indoor power board

• Replace the outdoor

controller circuit board.

• Replace the outdoor

controller circuit board.

Replace the indoor controller

• board of the indoor unit which

doesn’t operate.

• Not abnormal. There may be the influence

of electromagnetic noise.

Check the transmission wire

and get rid of the causes.

• Replace the outdoor

power circuit board.

• Replace the indoor

power board.

Page 48

Symptoms: Nothing is displayed on the remote controller 

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

Diagnosis flow Cause

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

DC 10V to DC 16V?

Check the status of the LED2.

Blinking

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

YES

Lighting

• Defective remote controller

• Breaking or poor contact of the remote controller wire

Inspection method and troubleshooting

• Replace the remote controller.

• 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.

Check the status of the LED2.

Blinking

Lighting

• The remote controller wire short-circuits

• Defective indoor controller board

• Check if the remote controller wire is short-circuited.

• Replace the indoor controller board.

Page 49

• Before repair Frequent calling from customers

Phone Calls From Customers How to Respond Note



Unit does not operate at all.

The operating display of remote

controller does not come on.

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

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

Remote controller

 Error code appears and blinks on the display of remote controller.



“PLEASE WAIT” is displayed

on the screen.



“FILTER” is displayed on the

screen.



“STANDBY” is displayed on the

screen.



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

 Error code will be displayed if any protection devices of the air conditioner are actuated. What is error code?

 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.

 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.

 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.

 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.

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. Regular filter: 100 hrs.

Page 50

Phone Calls From Customers How to Respond Note

The room cannot be cooled or heated sufficiently.

Sound comes out from the air conditioner.

Something is wrong with the blower…..

An gas escaping sound is heard



sometimes.

A cracking sound is heard



sometimes.

A buzzing sound is heard



sometimes.

A ticking sound is heard from



the outdoor unit sometimes.

A sound, similar to water



flowing, is heard from the unit.



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

The fan speed doesn’t match



the setting of the remote controller in HEAT operation.

 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.

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

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

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

 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.

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

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

 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.

dehumidification.

The up/down vane will be automatically set to horizontal blow in these cases listed up on the left (1)~3)). After a while, the up/down vane will be automatically moved according to the setting of the remote controller.

Page 51

Phone Calls From Customers How to Respond Note



Something is wrong with the blower…..

Something is wrong with the airflow direction….

Air blows out for a while after

HEAT operation is stopped.



The airflow direction is changed

during COOL operation.

The airflow direction is changed



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

The airflow direction doesn’t



change. (Up/down vane, left/right louver)

 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.

 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”.

 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.

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.

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 1) and 2). “DEFROST” will be displayed on the screen in case of 3).

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

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

 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

 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 “power failure automatic recovery ”.

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



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.

conditioner is under the control of external directive.

Check if any operations are ordered by distant

There might be a case that “CENTRALLY CONTROLLED

INDICATOR displayed.

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

” will not be

Page 52

Phone Calls From Customers How to Respond Note

A white mist is expelled from the indoor unit.

Water or moisture is expelled from the outdoor unit.

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

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

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 recovered and drained out for once.

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

Page 53

11-6. HOW TO CHECK THE PARTS PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

Parts name

Check points

Thermistor (TH3) <Outdoor pipe>

Thermistor (TH4) <Discharge>

Thermistor (TH6) <Outdoor 2-phase pipe>

Thermistor (TH7) <Outdoor>

Thermistor (TH8) <Heatsink>

Thermistor (TH32) <Outdoor pipe>

Thermistor (TH33) <Outdoor pipe>

Fan motor(MF1,MF2)

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

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

TH4

Normal

160k~410k

Abnormal

TH3

TH6

TH7

4.3k~9.6k

Open or short

TH32

TH33

TH8

39k~105k

Refer to next page.

Measure the resistance between the terminals with a tester.



(At the ambient temperature 20

Normal

1435$150

)

Abnormal

Open or short

Motor for compressor (MC)

Linear expansion valve (LEV-A/LEV-B/LEV-C)

Gray

Orange

Red

Yellow

Black

1 2 3 4 5 6

Solenoid valve coil <Bypass valve> (SV)

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

Normal



)

Abnormal

HRP100, 125YHRP71, 100V

Open or short

0.188  0.302 

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

Normal

Gray - Black Gray - Red

Gray - Yellow

Gray - Orange

46$3

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

Normal

1197$10

Abnormal

Open or short

Abnormal

Open or short

Page 54

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

Notes



· High voltage is applied to the connecter (CNF1, 2) for the fan motor. Give 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 Self check



Symptom : The outdoor fan cannot turn around.

Fuse check

Check the fuse (F5) on outdoor controller board.

board and fan motor.)

Did the fuse blow?

Wiring contact check

Contact of fan motor connector (CNF1, 2)

Is there contact failure?

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

Measure the voltage in the outdoor controller circuit

TEST POINT

 : VDC (between 1 (+) and 4 (-) of the fan connector): VDC DC250~330V

Yes

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

Recover wiring.

board.

TEST POINT  : VCC (between 5 (+) and 4 (-) of the fan connector): VCC DC15V

Is the voltage normal?

Yes

Replace the fan motor.

Yes

Check the operation of fan. END

Replace outdoor

controller board.

Check the operation. END

Replace outdoor controller board.

Replace the fan motor.

Page 55

11-7. HOW TO CHECK THE COMPONENTS

Low temperature thermistors

• Thermistor <Outdoor pipe> (TH3)

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

• Thermistor <Outdoor> (TH7)

• Thermistor <Outdoor pipe> (TH32)

• Thermistor <Outdoor pipe> (TH33) Thermistor R0 = 15k' ± 3%

B constant = 3480 ± 2% R

t =15exp{3480(

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

1 1

273+t – 273

30: 4.3k' 40: 3.0k'

)}

Resistance (k)

-20-10 0 1020304050

Temperature ()

Medium temperature thermistor

• Thermistor <Heatsink> (TH8)

WHRP71, 100VHA only

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

t =17exp{4150(

1 1

273+t – 323

)}

0: 180k' 25: 50k' 50: 17k' 70: 8k' 90: 4k'

High temperature thermistor

• Thermistor <Discharge> (TH4) Thermistor R120 = 7.465k' ± 2%

B constant = 4057 ± 2%

t =7.465exp{4057(

R 20: 250k'

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

1 1

273+t – 393

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

200

150

100

Resistance (k)

25 50 75 100 125

Temperature ()

500

400

)}

Resistance (k)

300

200

100

50 75 100 120

Temperature ()

Page 56

Linear expansion valve

(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>

Outdoor controller board

DC12V

Gray

Orange

Red

Yellow

Black

Drive circuit

LEV

OFF

Output

5678

OFF



Output

(Phase)

234

OFF

(2) Linear expansion valve operation

Connector LEV-A

LEV-B LEV-C

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, 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.

Valve position (capacity)



Extra tightning (about 32 pulse)



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

Open

500 pulse Opening a valve all the way

Pulse number

Page 57

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

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

Stopper

Coil

Lead wire

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.

Main body

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 wounded 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.

Be sure to attach the stopper.

Page 58

11-8. EMERGENCY OPERATION

(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 opera tion switch (SWE) to ON and short-circuiting the connector (CN31) on outdoor controller board.

LWhen following abnormalities occur, emergency operation will be available.

Error code

E0 ~ E7

(2) Check the following items and cautions for emergency operation

1Make 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.) 2For 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. 3During 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. 4Do 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. 5Do not perform emergency cooling operation for more than 10 hours: Neglecting this could result in freezing the heat exchanger in indoor unit.

Inspected content

Open/short of pipe thermistor (TH3/TH6/TH7/TH32/TH33/TH8)

Open of pressure sensor (T63HS) (only V/YHA2)

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

Communicaiton error between outdoor controller board and M-NET board (Serial communication error)

(3) Emergency operation procedure

1Turn the main power supply off. 2Turn on the emergency operation switch (SWE) on indoor controller board. 3Set the shorting pins of emergency operation connector (CN31) on outdoor controller board to ON. 4Use SW4-2 on outdoor controller board to set the operation mode (cooling or heating). (SW4-1 is not used.)

OFF

CN31

Shorting pins

SW4

1 2 Cooling

Heating

5Turning the main power supply on will start the emergency operation.

(4) Releasing emergency operation

1Turn the main power supply off.

SW4

2Set the emergency operation switch (SWE) on indoor controller board to OFF. 3Set the shorting pins of emergency operation connector (CN31) on outdoor controller board to OFF. 4Set SW4-2 on outdoor controller board as shown in the right.

1 2 Cooling

wIf shorting pins are not set on emergency operation connector (CN31), the setting remains OFF.

Heating

Page 59

(5) Operation data during emergency operation

During emergency operation, no communication is performed with the indoor unit, so the data items needed for operation are set to the following values:

Operation mode

Operation data

COOL

Intake temperature (TH1)

Indoor pipe temperature (TH2)

Indoor 2-phase pipe temperature (TH5)

Set temperature

63HS

Pressure saturation temperature (T

)

Outdoor pipe temperature (TH3)

Outdoor discharge pipe temperature (TH4)

Outdoor 2-phase pipe temperature (TH6)

Outdoor air temperature (TH7)

Temperature difference code (intake temperature - set temperature) (Tj)

Discharge superheat (SHd)

Sub-cool (SC)

27

5

25

50

45

80

50

35

30deg

5deg

HEAT

20.5

45

50

22

50

5

80

5

7

30deg

5deg

(+1, +3)

(+1)

(+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 emegency operation with the values listed above.

+2: If one thermistor is set to open/short, the values for each will be different from the list above. +3: Only for VHA2, YHA2

[Example] When pipe temperature thermistor (TH3) has an open or short circuit.

Thermistor

TH3

COOL

45

HEAT

5

<VHA, YHA> Discharge superheat (SHd) Cooling = TH4 - TH6 = Tc - Ta Heating = TH4 - TH5 = Td - 50

TH6

Regard normal figure as effective data.

Degree of subcooling (SC) Cooling = TH6- TH3 = Ta -45 Heating = TH5- TH2 = 50 - 45 = 5 deg.

TH4

Regard normal figure as effective data.

<VHA2, YHA2> Discharge superheat (SHd) Cooling = TH4 - T

TH5

TH2

63HS

(+3)

5

50

45

Heating = TH4 - T

Degree of subcooling (SC) Cooling = T Heating = T

63HS

- TH3 = Te - 45

63HS

- TH2 = Tf - 45

Regard normal figure as effective data.

63HS

= Tc - Te

63HS

= Td - Tf

Page 60

11-9. TEST POINT DIAGRAM

<CAUTION> TEST POINT1 is high voltage.

Outdoor controller circuit board PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA

SW7

Demand control setting

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,C

Linear expansion valve

63L Low pressure switch

TH4

Thermistor <Discharge>

TH3

Thermistor <Outdoor pipe>

TH7/6

Thermistor <Outdoor/ 2-phase pipe>

63H

High pressure switch

TH32, TH33

Thermistor <Outdoor pipe>

VFG

(Voltage between right pins of PC5C and PC5D, pin 3 and pin 4) (Same as

7(+)-4(-))

(CNF1

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: 280V 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)

SW1

Forced defrost, detect history record reset, refrigerant address

CNDC

280V DC (1+, 3-) (Outdoor power circuit board for HRP71, 100V) (Noise filter circuit board for HRP100, 125Y)

+ -

Communication power supply D71 Voltage 24V DC

CN51

External signal output

• Compressor operating signal

• Abnormal signal

CNDM

1 to 2: Input of low-level sound priority mode 1 to 3: Input of external contact point

CN52C

Connect to the noise filter circuit board (CN52C) (HRP71,100V)

CN4

Transmission to outdoor power circuit board (CN4)

SV2

Bypass valve

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 (HRP100, 125Y)

18V DC (HRP71, 100V)

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)

CNS

S1-S2: 220-240V AC

Page 61

Outdoor controller circuit board PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

SW7

Demand control setting

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,C

Linear expansion valve

Pressure sensor (63HS)

63L Low pressure switch

TH4

Thermistor <Discharge>

TH3

Thermistor <Outdoor pipe>

TH7/6

Thermistor <Outdoor/ 2-phase pipe>

TH32, TH33

Thermistor <Outdoor pipe>

(Voltage between right pins of PC5C and PC5D, pin 3 and pin 4) (Same as

(CNF1

7(+)-4(-))

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: 280V 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)

SW1

Forced defrost, detect history record reset, refrigerant address

CNDC

280V DC (1+, 3-) (Outdoor power circuit board for HRP71, 100V) (Noise filter circuit board for HRP100, 125Y)

+ -

Communication power supply D71 Voltage 24V DC

CN51

External signal output

• Compressor operating signal

• Abnormal signal

CNDM

1 to 2:

Input of low-level sound priority mode 1 to 3: Input of external contact point

CN52C

Connect to the power circuit board (HRP71,100V)

CN4

Transmission to outdoor power circuit board (CN4)

SV2

Bypass valve

21S4

Four-way valve

63H

High pressure switch

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 (HRP100, 125Y)

18V DC (HRP71, 100V)

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)

CNS

S1-S2: 220-240V AC

Page 62

Outdoor noise filter circuit board PUHZ-HRP71VHA PUHZ-HRP100VHA

RS1

CNAC1, CNAC2 220-240V AC (Connect to the outdoor controller circuit board (CNAC))

CN52C 52C driving signal (Connect to the outdoor controller circuit board (CN52C).)

LO, NO Voltage of 220-240V AC is output (Connect to the outdoor power circuit board (TABS, TABT))

EI Connect to the earth

E2 Connect to the earth

CN5 Primary current (Connect to the outdoor power circuit board (CN5))

LI, NI Voltage of 220-240V AC is input (Connect to the terminal block(TB1)).

Page 63

Outdoor noise filter circuit board PUHZ-HRP100YHA PUHZ-HRP125YHA

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 (Connect to the outdoor power circuit board (TB-L1, L2, L3))

Page 64

Outdoor power circuit board PUHZ-HRP71VHA PUHZ-HRP100VHA

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 diode bridge TABP1-TABS, TABN1-TABS, TABP1-TABT,TABN1-TABT

2. Check of DIP-IPM P-U, P-V, P-W, N-U, N-V, N-W

CN2 Connect to the outdoor controller circuit board (CN2) 1-5:Transmitting signal to the outdoor controller circuit board (0~5V DC) 2-5:Zero cross signal (0~5V DC) 3,4:18V DC 6-5:16V DC 7-5:16V DC

CN3 Thermistor (TH8) <Heatsink>

CN5 Detection of primary current Connect to the outdoor noise filter circuit board (CN5)

CN4 Connect to the outdoor controller circuit board (CN4)

CNAF Connect to ACTM

DIP-IPM

CNDC 280-380V DC (1+, 3–) Connect to the outdoor controller circuit board

TABS/TABT Connect to the outdoor noise filter circuit board Voltage among phases:220240V AC

TABP1 Connect to 52C

TABN1 Connect to ACTM

TABP2/SC-P2 Connect to the ACTM

TABN Connect to the smoothing capacitor CB –

TABP Connect to the smoothing capacitor CB +

TABU/V/W Connect to the compressor (MC) Voltage among phases:10V~180V AC

TABN2 Connect to ACTM

Page 65

Outdoor power circuit board PUHZ-HRP71VHA2 PUHZ-HRP100VHA2

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 66

Outdoor power circuit board PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

CN5

Detection of primary current (Connect to the outdoor noise filter circuit board (CNCT))

CN4

Connect to the outdoor controller circuit board (CN4)

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.

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

TAB connecter on X52A Connect to the RS resistor

R22

N2N1P2

TB-U, TB-V, TB-W

Connect to the compressor (MC) Voltage among phases: 10V-400V AC

TB-L1, TB-L2, TB-L3

Connect to the outdoor noise filter circuit board (L1-L01, L2-L02, L3-L03) 380V-415V AC

TB-N1

Connect to the smoothing capacitor CB2

–

Connect to DCL

TB-P2

Connect to the smoothing capacitor CB1

TB-C1

Connect to the smoothing capacitor

– , CB2 +

CB1

POWER MODULE

Page 67

Outdoor converter circuit board PUHZ-HRP100YHA PUHZ-HRP125YHA PUHZ-HRP100YHA2 PUHZ-HRP125YHA2

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 68

Active filter module

PUHZ-HRP71VHA PUHZ-HRP100VHA

P Connect to the outdoor power circuit board (TABP2)

L1, L2 Connect to the DCL (Reactor)

Upper side

Connect to the outdoor power circuit board (TABP1)

Connect to the outdoor

–

power circuit board (TABN1)

Connect to the outdoor power circuit board (CNAF)

1 : GND 2-1 : 15 V DC 3-1 : Control signal 4, 5 : Not used 6-1 : Control signal

N1 Non-connect

Lower side

N2 Non-connect

lo Connect to the outdoor power circuit board (TABN2)

Connection and internal circuit diagram

(+)

(- )

Tester check points of Acive ﬁ lter module

Error condition Normal value (reference)

(–) and Io open less than 1

(–) and L2

P and L2

P and Io

L2 and Io

1.The symptom when the unit is in open error condition is described to determine open error by tester check.

2.SW2 setting : Code "20" display

short 100k" ~ 1M open short 100k" ~ 1M open short 100k" ~ 1M open short 100k" ~ 1M open

ON OFF

DCL

L1 L2

The unit does not operate (can not be switched ON)

The breaker operates

The unit does not operate (can not be switched ON) 2U9 Abnormal stop (W2)

The breaker operates

The unit does not operate (can not be switched ON) 2U9 Abnormal stop (W2)

The breaker operates

The unit does not operate (can not be switched ON) 2U9 Abnormal stop (W2)

The breaker operates

The unit does not operate (can not be switched ON) 2U9 Abnormal stop (W2)

ACTM

N1 N2

Symptom when the unit is in trouble

Load

Page 69

11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS

(1) Function of switches

Typ e

switch

Dip

switch

Push

switch

Switch

SW1

SW4

SW8

SWP

No.

Function Effective timing

Action by the switch operation

ON OFF

Forced defrost

Abnormal history clear

Refrigerant address

1 Start Normal

Clear Normal off or operating

123

456ON123456ON123456ON123456

012 3

123

456ON123456ON123456ON123456

456 7

setting

Replacement operation

Separate indoor/outdoor

Test run Operating OFF

Test run mode setting Heating Cooling

Use of existing pipe Used Not used

unit power supplies

123

456ON123456ON123456ON123456

891011

123

456ON123456ON123456ON123456

12 13 14 15

Start

Used Not used

Pump down Start Normal

Normal

When compressor is working in heating operation. +1

When power supply ON

Under suspension

Always

Under suspension

When power supply ON

Under suspension

w1 Forced defrost should be done as follows.

1Change the DIP SW1-1 on the outdoor controller board from OFF to ON. 2Forced defrost will start by the above operation 1 if all these conditions written below are satisfied.

• Heat mode setting

• 10 minutes have passed since compressor started operating or previous forced defrost finished.

• Pipe temperature is less than or equal to 8:. 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.

Page 70

Type of

Switch

Dip

switch

Switch

SW5

SW7

SW9

SW6

SW5

No.

3,4,5

Function Effective timing

No function

Power failure

automatic recovery +2

No function

Model select

Setting of demand

control +3

<V/YHA>Max Hz setting (cooling)

<V/YHA2>Defrost Hz setting

Max Hz setting (heating)

Breaker capacity setting

3,4

Defrost setting

No function

Function switch

No function

Model select

Auto recovery

Max Hz(cooling)

Defrost Hz

Max Hz(heating)

For high humidity

MODEL

71V

OFF

100V

OFF

Action by the switch operation

ON OFF

—

No auto recovery

—

Following SW5-6 reference

SW7-1 SW7-2

OFF

0.54

Power consumption (Demand switch ON)

0% (Operation stop)

0.8

50%

75%

32A

—

Valid

—

SW6

123 64745 8

SW5-6

ON OFF

123456

ON OFF

123456

—

Normal

40A

Normal

—

Normal

—

MODEL

100Y

125Y

ON OFF

123 64745 8

ON OFF

123 64745 8

—

When power supply ON

—

Always

When power supply ON

Always

—

Always

—

ON OFF

123456

ON OFF

123456

SW5-6

SW6

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 SW7-1,2 are used for demand control. SW7-1,2 are effective only at the demand control. (Refer to next page : Special function (b))

w4 Please do not use SW7-3, 4 ,6 usually. Trouble might be caused by the usage condition. w5 Only for HRP100VHA2 (For HRP71VHA/71VHA2/100VHA model, breaker capacity should be 32A regardless of SW7-5

setting.)

(2) Function of connector

Action by open/ short operation

Types

Connector

CN31

Function Effective timing

Short Open

Emergency operation

Start

Normal

When power supply ON

Page 71

Special function

(a) Low-level sound priority mode (Local wiring) Unit enters into Low-level sound priority mode by external signal input setting. Inputting external signals to the outdoor unit decreases the outdoor unit operation sound 3 to 4 dB lower than that of usual. Adding a commercial timer or on-off switch contactor setting to the CNDM connector which is optional contactor for demand

input located on the outdoor controller board enables to control compressor operation frequency.

W The performance depends on the load of conditioned outdoor temperature. How to wire

<Low-level sound priority mode circuit>

Purchased locally

Relay supply

SW1

Insulate this point securely as this is not used.

Adapter for external signal input (PAC-SC36NA)

Red 3

Brown 2

Orange 1

Outdoor unit controller board

  

CNDM

SW1 : Switch X : Relay (Contact spec. : DC1mA)

Max. 10 m including local wiring

1) Make the circuit as shown above with adapter for external signal input(PAC-SC36NA).

2) Turn SW1 to on for Low-level sound priority mode. Turn SW1 to off to release Low-level sound priority mode and normal operation.

(b) On demand control (Local wiring) Demand control is available by external input. In this mode, power consumption is decreased within the range of usual

0~100%.

How to wire Basically, the wiring is same with (a). Connect an SW 1 which is procured locally between Orange and Red(1 and 3) of the adapter for external signal input(PAC-SC36NA), and insulate the tip of the brown lead wire.

It is possible to set it to the following power consumption (compared with ratings) by setting the SW7-1, 2.

SW7-1 SW7-2

OFF

Power consumption

(SW1 on)

0% (Operation stop)

50%

75%

Page 72

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.

[Display] (1)Normal condition

Unit condition

When the power is turned on When unit stops When compressor is warming up When unit operates

(2)Abnormal condition

Indication Error

Outdoor controller board

LED1 (Green) LED2 (Red)

1 blinking 2 blinking

2 blinking 1 blinking

2 blinking

3 blinking

4 blinking

5 blinking

1.Error code displayed on remote controller 2.Refer to service manual for indoor unit.

Connector(63L) is open. Connector(63H) is open. 2 connectors are open.

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

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.

Error code is not defined.

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

Outdoor controller board A-Control Service Tool

LED1 (Green) LED2 (Red) Error code

Lighted Lighted Lighted Lighted

Lighted

Contents Inspection method

Not lighted Not lighted

Lighted

Error code



Check if connector (63H or 63L) on the outdoor controller

board is not disconnected.



Check continuity of pressure switch (63H or 63L) by tester.

—



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.

00, etc. 08, etc.

C5, H7 etc.

—



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.

—

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 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 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.

A0~A8

Indication of the display

Alternately blinking display

Operation mode

Detailed

reference

page

P. 3 2 P. 3 2 P. 3 3 P. 3 3

(EA)

P. 3 3 (Eb) P. 3 3

(EC)

P. 3 8 (E8)

P. 3 8 (E9)

P. 3 7

P. 3 8

P. 3 7

P. 3 8

P.40~

P. 4 3

Page 73

Indication Error

Outdoor controller board

LED1 (Green)

3 blinking 1 blinking

LED2 (Red)

Abnormality of shell thermostat and discharging temperature (TH4)

Abnormality of superheat due to low discharge temperature

2 blinking

Abnormal high pressure (High pressure switch 63H worked.) Abnormal low pressure (Low pressure switch 63L worked.)

3 blinking

Abnormality of outdoor fan motor rotational speed

Protection from overheat operation(TH3),

Contents Inspection method

Error code

Check if stop valves are open.

Check if connectors (TH4, 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.

Check if indoor/outdoor units have a short cycle on their air ducts.

Check if connector Check if heat exchanger and filter is not dirty. Measure resistance values among terminals on linear expansion valve

using a tester.

Check the outdoor fan motor.

Check if connector (TH3) (63HS) on outdoor controller board is disconnected.

(T63HS : only V/YHA2)

4 blinking

5 blinking

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)

Open/short of outdoor thermistors (TH3, TH32, TH33, TH6, TH7

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.

UH U6

Check if connectors

controller board and connector

disconnected. Measure resistance value of outdoor thermistors.

and TH8)

Check if indoor/outdoor units have a short cycle on their air ducts.

Measure resistance value of outdoor thermistor(TH8).

compressor wiring.



Measure resistance value among terminals on compressor using a tester

Check if power supply voltage decreases. Check the wiring of CN52C. Check the wiring of CNAF.

Check if connectors (CN20, CN21, CN29 and CN44) on indoor

controller board are not disconnected.

Measure resistance value of indoor thermistors.

4 blinking

6 blinking

7 blinking

1 blinking

Abnormality of heatsink temperature

Abnormality of voltage Check looseness, disconnection, and converse connection of

Abnormality of room temperature thermistor (TH1) Abnormality of pipe temperature thermistor /Liquid (TH2) Abnormality of pipe temperature thermistor/Condenser-Evaporator

2 blinking

3 blinking

4 blinking

Abnormality of drain sensor (DS) Float switch connector open (FS)

Indoor drain overflow protection

Freezing (cooling)/overheating (heating) protection

Abnormality of pipe temperature

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-up machine using

a tester.

Check if drain-up machine works. Check drain function.

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.



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)

1 Error code displayed on remote controller 2 Refer to service manual for indoor unit.

(63H)(63L)

on outdoor controller board is not disconnected.

(TH3,TH32,TH33,TH4, and TH7/6)

(CN3)

on outdoor power board are not

on outdoor

Detailed

reference

page

P. 3 4

P. 3 5

P. 3 4

P. 3 7

P. 3 6

P. 3 6 P. 3 7 P. 3 6 P. 3 5 P. 3 4 P. 3 5

P. 3 5

P. 3 6

2 2 2

2

P. 3 9

Page 74

<Outdoor unit operation monitor function> [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

1ON23456

Display detail

Explanation for display Unit

(Be sure that 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.

1 second

interval

Wait for 4 minutes at the longest. (2) When the display lights (Normal operation) 1Operation mode display.

(Lighting)

SW2

LED1

1ON23456

The tens digit : Operation mode

Display Operation Model

OFF / FAN

COOLING / DRY +

HEATING

DEFROSTING

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.

Display Contents to be inspected (During operation)

Abnormal high pressure (63H worked)

Abnormal high discharging temperature, shortage of refrigerant

Open/short circuit of discharging thermistor(TH4)

Open/short of outdoor unit thermistors(TH3, TH32, TH33, 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

Display Inspection unit

Outdoor unit

Indoor unit 1

Indoor unit 2

Abnormal low pressure(63L worked)

Compressor overcurrent interruption

Abnormality of indoor units

P1~P8

Communication error of M-NET system

A0~A7

The ones digit : Relay output

Display

Warming-up Compressor

—

Compressor

—

4-way valve

(Initial setting)

—

Solenoid valve

—

Display Contents to be inspected (When power is turned on)

63L connector(red) is open.

63H connector(yellow) is open.

2 connectors(63H/63L) are 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

E0~E7

Page 75

SW2 setting

1ON23456

Display detail

Pipe temperature / Liquid(TH3) – 40~90

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.

1ON23456

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

1ON23456

Compressor operating frequency 0~225

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)

1ON23456

Pulse

Code

display

Code

display

Page 76

SW2 setting

1ON23456

Display detail

Pipe temperature / Liquid(TH3) on error occurring – 40~90

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.

1ON23456

Compressor temperature (TH4) or discharge temperature (TH4) on error occurring 3~217

Compressor operating current on error occurring 0~20

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.

0~20

When no error history, “ 0 ” and “– –” are displayed by turns.

Code

display

Code

display

1ON23456

Thermo 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 77

SW2 setting

1ON23456

Display detail

The number of connected indoor units

Explanation for display

0~3 (The number of connected indoor units are displayed.)

Unit

1ON23456

Capacity setting display

Outdoor unit setting information

Indoor pipe temperature / Liquid (TH2(1)) Indoor 1 – 39~88

Displayed as an outdoor capacity code.

Capacity

HRP71V HRP100V, 100Y HRP125Y

Code

14 20 25

• The tens digit (Total display for applied setting)

Setting details

H·P /

Cooling only

Single phase / 3 phase

0 : H·P 1 : Cooling only

0 :

Display details

Single phase

2 : 3 phase

• The ones digit Setting details

Defrosting switch

(Example) When heat pump, 3 phase and defrosting (normal) are set up, “20” is displayed.

– 39~88 (When the temperature is 0: or less, “–” and temperature are displayed by turns.)

0 : Normal 1 :

Display details

For high humidity

Code

display

Code

display

1ON23456

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 78

SW2 setting

1ON23456

Display detail

Indoor setting temperature 17~30

Explanation for display Unit

17~30

1ON23456

Outdoor pipe temperature / Cond./ Eva. (TH6) (V/YHA)

-39~88 Pressure saturation temperature (T63HS) (V/YHA2)

-39~88 Outdoor outside temperature (TH7)

-39~88

Outdoor heatsink temperature (TH8)

-40~200

Discharge superheat SHd 0~255 Cooling = TH4-TH6

Heating = TH4-TH5 Cooling = TH4-T

Heating = TH4-T63HS

63HS

(V/YHA)

(V/YHA2)

Sub cool. SC 0~130 Cooling = TH6-TH3 Heating = TH5-TH4

Cooling = T63HS-TH3 Heating = T63HS-TH2

(V/YHA)

(V/YHA2)

Input current of outdoor unit

-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.)

0~500 (When it is 100 or more, hundreds digit, tens digit and ones digit are displayed by turns.)

°C

0.1 A

1ON23456

LEV-B opening pulse 0~480

Targeted operation frequency 0~255

DC bus voltage 180~370

0~480 (When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns.)

0~255 (When it is 100Hz or more, hundreds digit, tens digit and ones digit are displayed by turns.)

180~370 (When it is 100V or more, hundreds digit, tens digit and ones digit are displayed by turns.)

Pulse

Page 79

SW2 setting

1ON23456

Display detail

Capacity save 0~255 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

Explanation for display

0~255 (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.

Unit

Code

display

1ON23456

Error postponement code history (3) of outdoor unit

Error code history (3) (Oldest) Alternate display of abnormal unit number and code

Error thermistor display When there is no error thermistor,

“–“ is displayed.

Operation frequency on error occurring 0~255

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.

3: Outdoor pipe temperature /Liquid (TH3, TH32) 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.

Code

display

Code

display

Code

display

1ON23456

Fan step on error occurring 0~10

Outdoor pipe temperature(TH33)

-39~88

0~10

-39~88 (When the temperature is 0: or less, “–” and temperature are displayed by turns.)

Step

Page 80

SW2 setting

1ON23456

Display detail

LEV-A opening pulse on error occurring 0~480

Explanation for display

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.

Unit

Pulse

1ON23456

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 (V/YHA)

-39~88 Pressure saturation temperature (T

63HS)

on error occurring (V/YHA2)

-39~88

Outdoor pipe temperature / Cond./ Eva. (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.

1ON23456

Outdoor outside 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 81

SW2 setting

1ON23456

Display detail

Discharge superheat on error occurring SHd 0~255 Cooling = TH4-TH6

Heating = TH4-TH5 Cooling = TH4-T

Heating = TH4-T63HS

63HS

(V/YHA)

(V/YHA2)

Explanation for display

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.

Unit

1ON23456

Sub cool on error occurring SC 0~130 Cooling = TH6-TH3 Heating = TH5-TH4

Cooling = T

63HS-TH3

Heating = T63HS-TH2

(V/YHA)

(V/YHA2)

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

1ON23456

Replacement operation WIf replacement operation is conducted even once, “1” is displayed. If replacement operation time is less than 2 hrs. “0” is displayed.

U9 Error status during the Error postponement period

1: Conducted. 0: Not yet.

Description Detection point Display

Normal Overvoltage error Undervoltage error Input current sensor error L

1-phase open error

Abnormal power synchronous signal ACTM error (HRP71, 100V) Undervoltage

 Display examples for multiple errors: Overvoltage (01) + Undervoltage (02) = 03 Undervoltage (02) + Power-sync signal error (08) = 0A L1 phase open error (04) + ACTM error (20) = 24

Power circuit board Controller circuit board

Controller circuit board

Power circuit board Check CNAF wiring. Defective ACTM/ P.B.

–

—

00 01 02

Code

display

Page 82

SW2 setting

Display detail

Controlling status of compressor operating frequency

Explanation for display

The following code will be a help to know the operating status of unit.

•

The tens digit

Display

Compressor operating frequency control

Primary current control

Secondary current control

Unit

1ON23456

LEV-C opening pulse 0~480

•The ones digit

activated control is displayed.)

Display

(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

0~480 (When it is 100 pulse or more, hundreds digit, tens digit and ones digit are displayed by turns.)

(In this digit, the total number of

Compressor operating frequency control

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 radiator panel

LED



Code

display

Pulse

Page 83

12 FUNCTION SETTING

12-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER

Each function can be set according to necessity 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. (1) Functions available when setting the unit number to 00 (Select 00 referring to 4 setting the indoor unit number.) W1 The functions below are available only when the wired remote controller is used. The functions are not available for

floor standing models.

<Table 1> Function selections

Function

Power failure automatic recovery Indoor temperature detecting 1

LOSSNAY connectivity

Power supply voltage Auto operating mode Frost prevention temperature Humidifier control (Heating mode) 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 Supported 240V 220V, 230V Auto energy-saving operation ON Auto energy-saving operation OFF 2 (Normal) 3 When the compressor operates, the humidifier also operates. When the fan operates, the humidifier also operates. Standard For high humidity 80% 60%

(Indoor unit does not intake outdoor air through LOSSNAY (Indoor unit intakes outdoor air through LOSSNAY)

Meaning of "Function setting" Mode02:indoor temperature detecting

OUTDOOR

Settings

OUTDOOR

)

Mode No.

Setting No.

1 2 1 2 3 1 2 3 1 2 1 2 1 2 1 2 1 2 1 2

OUTDOOR

: Initial setting

(when sent from the factory)

Remarks

The setting is applied to all the units in the same refrigerant system.

OUTDOOR

No.

Indoor temperature(ta)=

No.1

Average data of the sensor on all the indoor units

No.2

Data of the sensor on the indoor unit that connected with remote controller

No.3

Data of the sensor on main remote controller.

INDOOR

REMOTE (MAIN)

Initial

ta=(A+B)/2 ta=(A+B)/2 ta=A ta=A

INDOOR

REMOTE (SUB)

INDOOR

REMOTE (MAIN)

INDOOR

REMOTE (SUB)

INDOOR

REMOTE (MAIN)

REMOTE (SUB)

setting

ta=A ta=B ta=A ta=A

ta=C ta=C ta=C ta=C

INDOOR

REMOTE (MAIN)

Page 84

(2) Functions available when setting the unit number to 01-03 or AL (07 in case of wireless remote controller)

• When setting functions for an indoor unit in an independent system, set the unit number to 01 referring to 4 Set the indoor unit number of Operating Procedure.

• When setting functions for a simultaneous twin indoor unit system, set the unit number to 01 to 02 for each indoor 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 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.

unit in

: Initial setting (Factory setting

- : Not available

Mode

Function Settings

Filter sign 100h 1

Air flow (

Fan speed

No.of air outlets 4 directions 1 - -

Optional high efficiency filter Vane setting

Energy saving air Disabled flow(Heating mode

Optional humidifier (

PLA only

Vane differential setting in heating mode (

cold wind prevention

Swing Not available Swing

Set temperature in heating mode(4 deg up

Fan speed when the Extra low 1 heating thermostat is OFF

Fan speed when the cooling thermostat is OFF

Detection of abnormality of the pipe temperature (P8)Not available

)

2500h 07 2

No filter sign indicator Quiet Standard High ceiling

3 directions 09 2 - 2 directions Not supported Supported

No vanes(Vane No.3 setting : PLA only Vane No.1 setting Vane No.2 setting

)

Enabled Not supported Supported

No.1 setting (TH5: 24-28

No.2 setting (Standard,TH5:28-32

)

No.3 setting (TH5: 32-38

Available Wave air flow Available Not available

Stop Set fan speed Set fan speed Stop Available

Temperature correction: Valid Temperature correction: Invalid

)

PLA-BA(2)

}

)

PLA-BA(2)

}

Setting

No.

3 1--

08 2 - -

3--

3-1

2 1--

11 2 - -

3-1

2 1

2 1-

14 2 -

2 1

25 2

3 1

2 1

4-Way

cassette

PLA-BA(2)

Ceiling

concealed

PEAD-EA(2)

PEAD-GA

)

Wall

mounted

PKA-GAL

PKA-FAL(2)

Mode No.11

Setting No. Settings PLA-BA(2)

Vane No.3 setting No Vanes

2 Vane No.1 setting Standard

3 Vane No.2 setting

* Be careful of the smudge on ceiling.

Less smudging (

Downward position than the standard

Less draft * (

Upward position than the standard

)

Page 85

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

Mode number



Refrigerant address Unit number













Selecting functions using the wired remote controller



Check the function selection setting.



Switch to function setting mode.

(Press



and  at the same time

For modes 15 and higher, press

with the remote controller stopped.)



Specify refrigerant address 00 (outdoor unit).



Specify unit No. 00. (indoor unit)

(Use



and .)



Enter the setting.

(Press



Select mode No. 02



(Specified indoor unit: FAN operation)

(room temperature detection position).



Select setting No. 03 (remote controller fixed).

(Use



and .)





and  at the same time.

Modes 01 to 14 can be activated by pressing buttons



and



simultaneously, and modes 15 to



28 by pressing buttons

and .

YES

Change refrigerant address or unit No.



Enter the setting.

(Press



Example: Selecting room temperature detection position

Finished

YES



End function display.

(Press



and  at the same time.)

The above procedure must be carried out only if changes are necessary.



Page 86

[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, then change them as necessary. For initial 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 at least 2 seconds. will start to blink,

then the remote controller's display content will change as shown below.

* If the unit stops after

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  ) then restart from step .

 Set the indoor unit number.

 Press the

area.

FILTER

Refrigerant address display section

FUNCTION SELECTION

ON/OFF

button so that "- -" blinks in the unit number display

Unit number

display section

FUNCTION SELECTION

blinked for 2 seconds or "88" blinks in the room temperature display area for 2 seconds, a transmission error may have occurred.

TEST

 Set the outdoor unit's refrigerant address.

 Press the [

refrigerant address. The refrigerant address changes from "00" to "15". (This operation is not possible for single refrigerant systems.)

 Press the [

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.

CLOCK] buttons ( and ) to select the desired

CLOCK] buttons ( and ) to select the unit number

* 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

number. After a while, "- - " will start to blink in the mode number display area.

* "88" will blink in the room temperature display area if the selected refrigerant

address does not exist in the system. Furthermore, if refrigerant address display area also blinks, 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.

 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

blink, so check the currently set content.

MODE

Mode number display section

button to confirm the refrigerant address and unit

"F"

appears and blinks in the unit number display area and the

button. The currently selected setting number will

 When the refrigerant address and unit number are confirmed by pressing the

MODE

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.

Example) When the refrigerant address is set to 00 and the unit number is 02.

Designate operation

* When grouping different refrigerant systems, if an indoor unit other than the

one to which the refrigerant address has been set to perform 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.

Mode number display section

 Press the [ TEMP] buttons ( and ) to select the desired setting

number.

button, the corresponding indoor unit will start fan operation. This

00 refrigerant address

Outdoor unit

Indoor unit

Unit number 01 Unit number 02

Remote controller

Mode number 02 = Indoor tempreture detection

Fan draft

Setting number display section

 Register the settings you have made in steps  to  .

 Press the

to blink and registration starts.

* If " - - - " is displayed for both the mode number and setting number and "

Check to see if there are any sources of noise or interference near the transmission path.

 If you wish to continue to select other functions, repeat steps  to  .

 Complete function selection.

 Hold down the ( mode is 15 to 28) and buttons

simultaneously for at least 2 seconds. After a while, the function selection screen will disappear and the air condi-

tioner OFF screen will reappear.

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.

MODE

button. The mode number and setting number will start

FILTER

Setting number 1 = Indoor unit operating average

The mode number and setting number will stop blinking and remain lit, indicating the end of registration.

" blinks in the room temperature display area, a transmission error may have occurred.

TEST

* 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.)

Setting number 3 = Remote controller built-in sensor

Page 87

12-1-2. Selecting functions using the wireless remote controller (Type C)

Kmi

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]

CHECK

SET

FAN

VAN E

LOUVER

RESET

TEMP

AUTO STOP

AUTO START

CLOCK

min

HOUR button

MINUTE button

ON/OFF button

Check button

ON/OFF

MODE

CHECK

TEST RUN

[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.

CHEC

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.

min

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 ping sound” 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 blink and beeps will be heard to indicate the current setting number. Current setting number: 1 = 1 beep (one second) 2 = 2 beeps (one second each) 3 = 3 beeps (one 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 ping sound” 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 blink 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 ping sound” 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.

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. The procedure is given after the flow chart.

 Check the function selection setting.

 Switch to function selection mode.

(Enter address "50" in troubleshooting mode, then press the HOUR button.)

Troubleshooting 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 troubleshooting mode, then press the MINUTE 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 troubleshooting mode, then press the HOUR button.)

 Select setting No. "02" (OFF). (Set address "02" while still in troubleshooting mode, then press the HOUR button.)

Finished

YES

 End function selection mode. (End troubleshooting mode.)

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.



YES

Change unit No.

Page 88

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")

Language setting to display

Operation function limit setting (operation lock) ("LOCKING FUNCTION")

(1) (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 /

Room air temperature display setting ("ROOM TEMP DISP SELECT")

(2)

(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),

[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.

(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 

Item 2



French (F)

[ ]

• 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 2 remote controllers are connected to 1 group, 1 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

°F")

• Setting the temperature unit ( or

• Setting the use or non-use of the display of indoor (room) air temperature

• Setting the use or non-use of the display of "Cooling" or "Heating" display

during operation with automatic mode

Item 3 (Setting content)

°F) to display



[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 n

• To switch the setting, press the [

umber setting for error situation

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.

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 [

)] button to move the cursor to the right (left). Press the [ CLOCK

( (

) and ( )] button to set the numbers.

[4] -4. Display change setting (1) Temper

ature display /

• To switch the setting, press the [

°F setting

ON/OFF] button.

  : The temperature unit  is used.  °F : The temperature unit °F is used.

(2) Room air temperature display setting

• To switch the setting, press the [

ON/OFF] button.

ON : The room air temperature is displayed. OFF : The room air temperature is not displayed.

(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.

TEMP. ( ) and

Page 89

[Function selection flowchart]

Setting language (English)

Change Language

Normal display (Display when the air conditioner is not running)

Hold down the button and press the button for 2 seconds.

Remote controller function selection mode



Item 2Item 1

English



German

Spanish

Russian





Italian

Chinese

French

Hold down the button and press the button for 2 seconds.

Press the operation mode button. Press theTIMER MENU button. Press theTIMER ON/OFF button.

Dot display



TEMP.



PAR-21MAA



MONITOR/SET

BACK DAY

CLOCK

ON/OFF

OPERATION

ON/OFF

CHECK

CLEAR



FILTER



TEST







Function selection

Mode selection

Display mode setting

Japanese

















Item 3



OFF

no1

Operation lock setting is not used. (Initial setting value)



Operation lock setting is except On/Off button.



no2



OFF



OFF



OFF



OFF



CALL-



°C



°F



OFF



OFF



Operation lock setting is 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.

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.

Fixed air flow direction mode

Not necessary to set this mode. Refer to OPERATION MANUAL of indoor unit for details on operation.

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)



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.

Page 90

MONITORING THE OPERA TION DA T A BY THE REMOTE CONTROLLER

13-1. HOW TO "MONITOR THE OPERATION DATA"

• Turn on the [Monitoring the operation data]





(3)



Example) Request code "004"

Discharge temperature 69 Refrigerant address "00"



(7)

(5)

(1)

(2)

(4)

(1) Press the

(2) Press the

Note)

Operating the service inspection monitor

- - - ] appears on the screen (at

[ (The display (at

(3) Press the [TEMP] buttons (

[Screen]

(4) Press the [CLOCK] buttons ( and ) to set the desired request code No.

(5) Press the

(The requested data will be displayed at  in the same way as in maintenance mode.)

Data collected during operation of the remote controller will be displayed. The collected data such as temperature data will not be updated automatically even if the data changes. To display the updated data, carry out step (4) again.

TEST

CHECK

It is not possible to switch to [Maintenance monitor] during data request in maintenance mode (i.e., while "

since no buttons are operative.



FILTER

button for 3 seconds so that [ Maintenance mode] appears on the screen (at ).

button for 3 seconds to switch to [Maintenance monitor].



) when [Maintenance monitor] is activated.

) now allows you to set a request code No.)

and ) to select the desired refrigerant address.

button to perform data request.

(6)

A: Maintenance mode B: Refrigerant address C: Data display area D: Request code display area

- - - -"

is blinking)

Canceling the Monitoring the operation data

(6) While [Maintenance monitor] is displayed, press the

(7) To return to normal mode, press the

ON/OFF

CHECK

button.

button for 3 seconds to return to maintenance mode.

Page 91

13-2. REQUEST CODE LIST

* Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed.

Request content

Request code

Operation state

Compressor-Operating current (rms)

Compressor-Accumulated operating time

Compressor-Number of operation times

Discharge temperature (TH4)

Outdoor unit - Liquid pipe 1 temperature (TH3)

Outdoor unit - Liquid pipe 2 temperature

Outdoor unit-2-phase pipe temperature (TH6)

Outdoor unit-Suction pipe temperature (TH32)

Outdoor unit-Outside air temperature (TH7)

Outdoor unit-Heatsink temperature (TH8)

Discharge superheat (SHd)

Sub-cool (SC)

Pressure saturation temperature (T63HS)

Compressor-Operating frequency

Compressor-Target operating frequency

Outdoor unit-Fan output step

Outdoor unit-Fan 1 speed

(Only for air conditioners with DC fan motor)

Outdoor unit-Fan 2 speed

(Only for air conditioners with DC fan motor)

LEV (A) opening

LEV (B) opening

LEV (C) opening Primary current

DC bus voltage

Number of connected indoor units

Indoor unit-Setting temperature

Indoor unit-Intake air temperature <Measured by thermostat>

Indoor unit-Intake air temperature (Unit No. 1)

Indoor unit-Intake air temperature (Unit No. 2)

Indoor unit-Intake air temperature (Unit No. 3)

Indoor unit-Intake air temperature (Unit No. 4)

Indoor unit - Liquid pipe temperature (Unit No. 1)

Indoor unit - Liquid pipe temperature (Unit No. 2)

Indoor unit - Liquid pipe temperature (Unit No. 3)

Indoor unit - Liquid pipe temperature (Unit No. 4)

Indoor unit-Cond./Eva. pipe temperature (Unit No. 1)

Indoor unit-Cond./Eva. pipe temperature (Unit No. 2)

Indoor unit-Cond./Eva. pipe temperature (Unit No. 3)

Indoor unit-Cond./Eva. pipe temperature (Unit No. 4)

Thermostat ON operating time

Test run elapsed time

Description

(Display range)

Refer to 13-2-1. Detail Contents in Request Code.

0 – 50

0 – 9999

3 – 217

-40 – 90

-39 – 88

-40 – 200

0 – 255

0 – 130

-39 – 88

0– 255

0– 10

0 – 9999

0– 500

0– 500 0– 50

180 – 370

0– 4

17 – 30

8– 39

-39 – 88

0 – 999

0– 120

Unit Remarks

10 hours

100 times

   

  

Step

rpm

Pulses

Units

 



   

Minutes

–

"0" is displayed if the air conditioner is a single-fan

type.

"0" is displayed if the target unit is not present.

is displayed if the target unit is not present.

"0"

is displayed if the target unit is not present.

"0"

Not possible to activate maintenance mode during the test run.

Page 92

Request content

Request code

Indoor unit-Control state

Outdoor unit-Control state

Compressor-Frequency control state

Outdoor unit-Fan control state

Actuator output state

Error content (U9)

Signal transmission demand capacity

Contact demand capacity

External input state (silent mode, etc.)

Outdoor unit-Capacity setting display

Outdoor unit-Setting information

Outdoor unit-SW1 setting information

Outdoor unit-SW2 setting information

Outdoor unit-SW4 setting information

Outdoor unit-SW5 setting information

Outdoor unit-SW6 setting information

Outdoor unit-SW7 setting information

Outdoor unit-SW8 setting information

Outdoor unit-SW9 setting information

Outdoor unit-SW10 setting information

M-NET adapter connection (presence/absence)

Display of execution of replace/wash operation

Outdoor unit-Microcomputer version information

Outdoor unit-Microcomputer version information (sub No.)

Outdoor unit - Error postponement history 1 (latest)

100

Outdoor unit - Error postponement history 2 (previous)

101

Outdoor unit - Error postponement history 3 (last but one)

102

Description

(Display range)

Refer to 13-2-1.Detail Contents in Request Code.

0 – 255

Refer to 13-2-1.Detail Contents in Request Code.

"0000": Not connected "0001": Connected

"0000": Not washed "0001": Washed

"0501"

Auxiliary information (displayed after

version information)

Displays postponement code. (" - - " is

displayed if no postponement code is present)

Displays postponement code. (" - - " is

displayed if no postponement code is present)

Displays postponement code. (" - - " is

displayed if no postponement code is present)

"A000"

Code

Unit Remarks

–

Ver

–

Page 93

Request content

Request code

Error history 1 (latest)

103

Error history 2 (second to last)

104

Error history 3 (third to last)

105

Abnormal thermistor display

106

(TH3/TH6/TH7/TH8)

Operation mode at time of error

107

Compressor-Operating current at time of error

108

Compressor-Accumulated operating time at time of error

109

Compressor-Number of operation times at time of error

110

Discharge temperature at time of error

111

Outdoor unit - Liquid pipe 1 temperature (TH3) at time of error

112

Outdoor unit - Liquid pipe 2 temperature at time of error

113

Outdoor unit-2-phase pipe temperature (TH6) at time of error

114

115

Outdoor unit-Outside air temperature (TH7) at time of error

116

Outdoor unit-Heatsink temperature (TH8) at time of error

117

Discharge superheat (SHd) at time of error

118

Sub-cool (SC) at time of error

119

Compressor-Operating frequency at time of error

120

Outdoor unit at time of error

121

• Fan output step

Outdoor unit at time of error

122

• Fan 1 speed (Only for air conditioners with DC fan)

Outdoor unit at time of error

123

• Fan 2 speed (Only for air conditioners with DC fan)

124

LEV (A) opening at time of error

125

LEV (B) opening at time of error

126

127

128

Pressure saturation temperature (T

129

Thermostat ON time until operation stops due to error

130

131

Indoor - Liquid pipe temperature at time of error

132

Indoor-2-phase pipe temperature at time of error

133

Indoor at time of error

134

• Intake air temperature <Thermostat judge temperature>

135

136

137

138

139

140

146

147

148

149

Indoor-Actual intake air temperature

150

Indoor - Liquid pipe temperature

151

Indoor-2-phase pipe temperature

152

63HS) at time of error

Description

(Display range)

Displays error history. (" - - " is displayed if no history is present.)

: TH3

6 : TH6

7 : TH7

8 : TH8

0 : No thermistor error

Displayed in the same way as request code "0".

0– 50

0 – 9999

3– 217

-40 – 90

-39 – 88

-40 – 200

0– 255

0– 130

0– 255

0– 10

0 – 9999

0– 500

-39 – 88

0 – 999

-39 – 88

Unit Remarks

Code

Sensor

number

–

10 hours

100 times

   

Step

rpm

Pulses



Minutes



  

"0" is displayed if the air conditioner is a single-

fan type.

Average value of all indoor units is displayed if the air condi-

tioner consists of two or more indoor units (twin, triple, quad).

Average value of all indoor units is displayed if the air condi-

tioner consists of two or more indoor units (twin, triple, quad).

Page 94

Request content

Request code

153

Indoor-Fan operating time

154

(After filter is reset)

Indoor-Total operating time

155

(Fan motor ON time)

156

Indoor fan output value (Sj value)

157

Indoor fan output value

158

(Pulsation ON/OFF)

Indoor fan output value (duty value)

159

160

161

Indoor unit-Model setting information

162

Indoor unit-Capacity setting information

163

Indoor unit-SW3 information

164

Wireless pair No. (indoor control board side) setting

165

Indoor unit-SW5 information

166

167

189

Indoor unit-Microcomputer version information

190

Indoor unit-Microcomputer version information (sub No.)

191

192

764

Stable operation (Heat mode)

765

Stable operation (Cool mode)

766

Stable operation cancellation

767

Description

(Display range)

0 – 9999

0–

255

Fan control data

00 **" "**" indicates fan control data.

"00 **" "**" indicates fan control data.

Refer to 13-2-1 Detail Contents in Request Code.

Undefined

Refer to

13-2-1 Detail Contents in Request Code.

Undefined

Auxiliary information (displayed after version information)

This request code is not provided to collect data. It is used to fix the operation state.

This request code is not provided to collect data. It is used to cancel the operation state that has been

fixed by request codes "765" and "766".

Unit Remarks

1 hour

10 hours

For indoor fan phase control

–

For indoor fan pulsation control

–

For indoor DC brushless motor control

–

Ver

–

Page 95

13-2-1. Detail Contents in Request Code





[Operation state] (Request code ":0")

Data display

Relay output state

Operation mode

Display Operation mode

0STOP • FAN C COOL • DRY HHEAT

d DEFROST

[Indoor unit – Control state] (Request code :" 50 ")

Data display

Unit No. 4 state

Unit No. 3 state

Unit No. 2 state

Unit No. 1 state





Relay output state

Display

0 1 2 3 4 5 6 7 8 A

Display State

0 Normal 1 Preparing for heat operation 2– 3– 4 Heater is ON. 5 Anti-freeze protection is ON. 6 Overheat protection is ON. 7 Requesting compressor to turn OFF F There are no corresponding units.

Power currently

supplied to compressor

–

ON ON

Example) Request code "004"

A: Maintenance mode display B: Refrigerant address

C: Data display area D: Request code display area

Compressor Four-way valve Solenoid valve

Discharge temperature 69  Refrigerant address "00"

–

ON ON ON ON

–

ON ON

–

[Outdoor unit – Control state] (Request code ":51")

Data display State 0000Normal 0 0 0 1 Preparing for heat operation 0 0 0 2 Defrost

[Compressor – Frequency control state] (Request code ":52")

Data display

Frequency control state

Frequency control state 

Display Current limit control

0 No current limit 1 Primary current limit control is ON. 2 Secondary current limit control is ON.

Frequency control state 

Display





Discharge temperature

0 1 Controlled 2 Controlled 3 Controlled Controlled 4 Controlled 5 Controlled Controlled 6 Controlled Controlled 7 Controlled Controlled Controlled 8 Controlled 9 Controlled Controlled

A Controlled Controlled

b Controlled Controlled Controlled

C Controlled Controlled

d Controlled Controlled Controlled

E Controlled Controlled Controlled

F Controlled Controlled Controlled Controlled

Condensation temperature

overheat prevention

protection control

Anti-freeze

Heatsink temperature

overheat prevention

Page 96

[Fan control state] (Request code :" 53 ")

Data display

Fan step correction value by heatsink temperature overheat prevention control

Fan step correction value by cool condensation temperature overheat prevention control

Display Correction value

- (minus) – 1 00

+1 +2

[Actuator output state] (Request code :"54")

Data display

Actuator output state 

Actuator output state 

Actuator output state 

Display SV1 Four-way valve Compressor

0 1

2 3

4 5

6 7

8 9

A b

C d

E F

ON ON

Compressor is

warming up

ON ON

Actuator output state 

Display 52C SV2 SS

0 1

2 3 4 5 6 7

ON ON

ON ON ON ON

[Error content (U9)] (Request code :"55")

Data display

Error content 

Error content 

Error content  : Detected

Display

0 1 2 3 4 5 6 7 8 9 A b C d E F

Overvoltage Undervoltage L

error error open error

1-phase

Power synchronizing

signal error

Error content  : Detected

0 1 2 3

Converter Fo

error

PAM error

Display

Page 97

[Contact demand capacity] (Request code "61")

Data display

000

Setting content

[External input state] (Request code "62")

Data display

000

Input state

Setting content

Setting

Display Setting value

0 1 50% 2 75% ON 3 100%

Input state : Input present

Display

0 1 2 3 4 5 6 7 8 9 A b C d E F

Contact demand Silent mode Spare 1 Spare 2

input input input input

SW7-1 SW7-2

[Outdoor unit - Capacity setting display] (Request code : "70")

Data display

935 10 50 11 6 0 14 71 20 100 25 125 28 140 40 200 50 250

Capacity

[Outdoor unit - Setting information] (Request code "71")

Data display

Setting information 

Setting information 

Setting information 

Display Defrost mode

0 Standard 1 For high humidity

Setting information 

Display

0 1 2 3

Single-/ Heat pump/

3-phase

Single-phase

3-phase

cooling only

Heat pump Cooling only Heat pump

Cooling only

Page 98

[Outdoor unit switch setting display (SW1 to SW10, except SW3)] Request codes: 73 to 82

0: Swich OFF 1: Swich ON

SW1, SW2, SW6, SW7

123456

000000 0000 100000 0001 010000 0002 11 0 000 0003 001000 0004 101000 0005 011000 0006 11 1 000 0007 000100 0008 100100 0009 010100 000A 11 0 100 000b 001100 000C 101100 000d 011100 000E 11 11 0 0 000F 000010 0010 100010 010010 11 0 010 001010 101010 011010 11 1 010 000110 100110 010110 11 0 11 0 001110 101110 011110 11 111 0 000001 100001 010001 11 0 001 001001 101001 011001 11 1 001 000101 100101 010101 11 0 101 001101 101101 011101 11 11 0 1 000011 100011 010011 11 0 011 001011 101011 011011 11 1 011 000111 100111 010111 11 0 11 1 001111 101111 011111 11 111 1

Data display

00 11 00 12 00 13 00 14 00 15 00 16 00 17 00 18 00 19 00 1A 00 1B 00 1C 00 1D 00 1E 00 1F 00 20 00 21 00 22 00 23 00 24 00 25 00 26 00 27 00 28 00 29 00 2A 00 2B 00 2C 00 2D 00 2E 00 2F 00 30 00 31 00 32 00 33 00 34 00 35 00 36 00 37 00 38 00 39 00 3A 00 3B 00 3C 00 3D 00 3E 00 3F

0: Swich OFF 1: Swich ON

SW5

1234

0000 0000 1000 0001 0100 0002 1 1 0 0 00 03 0010 0004 1010 0005 0110 0006 1 1 1 0 00 07 0001 0008 1001 0009 0101 000A 1 1 0 1 00 0b 0011 000C 1 0 1 1 00 0d 0111 000E 11 11 000F

0: Swich OFF 1: Swich ON

SW8

123

000 0000 100 0001 010 0002 11 0 0003 001 0004 101 0005 011 0006 11 1 0007

0: Swich OFF 1: Swich ON

SW4, SW9, SW10

0 0 00 00 1 0 00 01 0 1 00 02 1 1 00 03

Data display

Page 99

[Indoor unit – Model setting information] (Request code : 162)

Data display

See the table on the right.

Display Model setting state Display Model setting state

00 PSA-RP•GA, PSH-PGAH 20 01 21 02

PEAD-RP•EA(2)/GA, PEHD-P•EAH22PCA-RP•GA(2), PCH-P•GAH, PLA-RP•BA(2) 03 SEZ-KA• VA 23 04 24 05 SLZ-KA• VA(L) 25 06 PCA-RP• HA 26 07 27 08 28 09 29

0A 2A

0b 2b PKA-RP•GAL, PKH-P•GALH

0C 2C

0d 2d

0E 2E 0F 2F PLA-RP• AA

10 30 11 PEA-RP•EA 31 PLH-P•AAH 12 MEXZ-GA•VA(L) 32 13 33 14 34 15 35 16 36 17 37 18 38 19 39

1A 3A

1b 3b

1C 3C

1d 3d

1E 3E 1F 3F

PKA-RP•FAL(2), PKH-P•FALH

PLA-RP•AA2

[Indoor unit – Capacity setting information] (Request code 163 )

Data display

See the table on the right.

Display Capacity setting state Display Capacity setting state

00 12 10 112 01 16 11 125 02 22 12 140 03 25 13 04 28 14 05 32 15 06 35, 36 16 07 40 17 08 45 18 09 50 19

0A 56 1A

0b 63 1b

0C 71 1C

0d 80 1d

0E 90 1E 0F 100 1F

[Wireless pair No. (indoor control board side) setting] (Request code 165 )

Data display

See the table on the right.

Display Pair No. setting state

00 No. 0 01 No. 1 J41 disconnected 02 No. 2 J42 disconnected 03 No. 3 J41, J42 disconnected

Page 100

14 EASY MAINTENANCE FUNCTION

L Reduces maintenance work drastically. L Enables you to check operation data of the indoor and outdoor units by remote controller.

Furthermore, use of maintenance stable-operation control that fixes the operating frequency, allows smooth inspection, even for inverter models.

Smooth Maintenance Function

Easy maintenance information (unit)

Compressor Outdoor unit Indoor unit

Accumulated operating



time

(%10 hours) temperature () temperature ()

Number of ON/OFF Discharge



times (%10 times) temperature () temperature ()

Operating Outside air Filter operating current (A) temperature () time* (Hours)

* The filter operating time is the time that has elapsed since the filter was reset.

Heat exchanger





Discharge temperature 64

Intake air



Heat exchanger







L Conventional inspection work

Outdoor unit

Remove the service panel.

Measure the discharge temperature.

Indoor unit

Measure the intake air temperature.

Measure the outside air temperature

14-1. MAINTENANCE MODE OPERATION METHOD

If you are going to use 14-2. "GUIDE FOR OPERATION CONDITION", set the airflow to "High" before activating maintenance mode.

L Switching to maintenance mode

Maintenance mode can be activated either when the air conditioner is operated or stopped. It cannot be activated during test run. + Maintenance information can be viewed even if the air conditioner is stopped.

N Remote controller button information

  



Compressor information

Operation mode

(1) Press the

[Display

TEST



]

MAINTENANCE

button for 3 seconds to switch to maintenance mode.

If stable operation is unnecessary or if you want to check the data with the air conditioner stopped, skip to step (4).

Outdoor unit information

Indoor unit information

Confirm

Activate/cancel maintenance mode

L Fixed Hz operation

The operating frequency can be fixed to stabilize operation of inverter model. If the air conditioner is currently stopped, start it by this operation.

(2) Press the

[Display

(3) Press the

[Display

MODE



]

FILTER



] Waiting for stabilization

button to select the desired operation mode.

Stable cooling operation

COOL STABLE MODE

Stable heating operation

HEAT STABLE MODE

Stable operation cancellation

STABLE MODE CANCEL

( ) button to confirm the setting.

100

Stabilized

After 10 to 20 minutes

Mitsubishi PUHZ-HRP71VHA(2), PUHZ-HRP100VHA(2), PUHZ-HRP100YHA(2), PUHZ-HRP125YHA(2) Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual