Mitsubishi PUHZ-SP140VHA, PUHZ-SP140YHA, PUHZ-SP125VHA, PUHZ-SP125YHA, PUHZ-SP100VHA.UK Service Manual

...

Download

SERVICE MANUAL

R410A

PUHZ-SP100VHA.UK PUHZ-SP100YHA.UK

CONTENTS

1. REFERENCE MANUAL

.................................

2. SAFETY PRECAUTION

.................................

3. FEATURES

.....................................................

4. SPECIFICATIONS

..........................................

5. DATA

...............................................................

6. OUTLINES AND DIMENSIONS

...................

7. WIRING DIAGRAM

......................................

8. WIRING SPECIFICATIONS

..........................

REFRIGERANT SYSTEM DIAGRAM

..............

10. TROUBLESHOOTING

..................................

11. FUNCTION SETTING

...................................

12. EASY MAINTENANCE FUNCTION

.............

13.

MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER

....

14. DISASSEMBLY PROCEDURE

...................

102

PARTS CATALOG (OCB566)

Outdoor unit [Model Name]

PUHZ-SP100VHA PUHZ-SP125VHA PUHZ-SP140VHA

PUHZ-SP100YHA PUHZ-SP125YHA PUHZ-SP140YHA

[Service Ref.]

PUHZ-SP100VHA.UK PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK

PUHZ-SP100YHA.UK PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

No. OCH566

REVISED EDITION-A

January 2015

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

Notes:

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

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

• Please void OCH566.

Revision:

•

Modified some descriptions in "8-1. FIELD ELECTRICAL WIRING" and "8-2. SEPARATE

INDOOR UNIT/OUTDOOR

UNIT POWER SUPPLIES" in

REVISED EDITION-A.

• Some other descriptions have been also modified.

REFERENCE MANUAL

INDOOR UNIT’S SERVICE MANUAL

SAFETY PRECAUTION

2-1. ALWAYS OBSERVE FOR SAFETY

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

Preparation before the repair service.

• Prepare the proper tools.

• Prepare the proper protectors.

• Provide adequate ventilation.

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

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

Precautions during the repair service.

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

• Do not pour water into the electric parts.

• Do not touch the refrigerant.

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

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

Model Name Service Ref. Service Manual No.

PLA-SP71/100/125/140BA PLA-SP71/100/125/140BA.UK

OCH565 OCB565

PEAD-SP100/125/140JA(L) PEAD-SP100/125/140JA(L).UK

―

BWE01408

OCH566A

Cautions for units utilizing refrigerant R410A

2-2. CAUTIONS RELATED TO NEW REFRIGERANT

Use new refrigerant pipes.

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

In case of using the existing pipes for R22, be careful with the following:

· Be sure to clean the pipes and make sure that the insides of the pipes are clean.

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

· Avoid using thin pipes.

Charge refrigerant from liquid phase of gas cylinder.

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

Do not use refrigerant other than R410A.

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

Use a vacuum pump with a reverse flow check valve.

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

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

The following tools are necessary to use R410A refrigerant.

Handle tools with care.

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

Do not use a charging cylinder.

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

Flare tool

Electronic refrigerant charging scale

Vacuum pump adaptor

Size adjustment gauge

Gauge manifold

Torque wrench

Gas leak detector

Charge hose

Tools for R410A

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

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

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

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

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

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

Never use any refrigerant other than that specified.

Doing so may cause a burst, an explosion, or fire when the unit is being used, serviced, or disposed of. Correct refrigerant is specified in the manuals and on the spec labels provided with our products. We will not be held responsible for mechanical failure, system malfunction, unit breakdown or accidents caused by failure to follow the instructions.

Use the specified refrigerant only.

OCH566A

Gravimeter

Unit

[3] Service tools

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

[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 a syphon type.

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

No.

Tool name

Specifications

Gauge manifold

· Only for R410A

· Use the existing fitting

specifications

. (UNF1/2)

· Use high-tension side pressure of 5.3 MPa·G or over.

Charge hose

· Only for R410A

· Use pressure performance of 5.09 MPa·G or over.

Electronic scale

—

Gas leak detector · Use the detector for R134a, R407C or R410A.

Adaptor for reverse flow check · Attach on vacuum pump.

Refrigerant charge base

—

Refrigerant cylinder

· Only for R410A · Top of cylinder (Pink)

· Cylinder with syphon

Refrigerant recovery equipment

—

OCH566A

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

1 Thickness of pipes

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

2 Dimensions of flare cutting and flare nut

The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that,

R410A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrigerants. Therefore, to enhance airtightness and strength, 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 have partly been changed to increase strength as shown below. Set copper pipe correctly referring to copper pipe flaring dimensions for R410A below. For 1/2 and 5/8 inch pipes, the dimension B changes. Use torque wrench corresponding to each dimension.

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

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

6.35

9.52

12.70

15.88

19.05

0.8

1.0

—

0.8

1.0

Nominal

dimensions(inch)

Diagram below: Piping diameter and thickness

Outside

diameter

(mm)

Thickness

(mm)

R410A R22

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

6.35

9.52

12.70

15.88

19.05

9.1

13.2

16.6

19.7

—

9.0

13.0

16.2

19.4

23.3

Nominal

dimensions(inch)

Flare cutting dimensions

Outside

diameter

Dimension A

( )

-0.4

(mm)

R410A R22

(mm)

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

6.35

9.52

12.70

15.88

19.05

17.0

22.0

26.0

29.0 *

—

17.0

22.0

24.0

27.0

36.0

Nominal

dimensions(inch)

Flare nut dimensions

Outside

diameter

Dimension B

(mm)

R410A

* 36.0mm for indoor unit of SP100,

125 and 140

R22

(mm)

Gauge manifold Charge hose Gas leak detector

Refrigerant recovery equipment Refrigerant cylinder Applied oil

Safety charger

Charge valve Vacuum pump

Flare tool

Bender Pipe cutter Welder and nitrogen gas cylinder Refrigerant charging scale Vacuum gauge or thermistor vacuum gauge and vacuum valve Charging cylinder

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

Prevent compressor malfunction when charging refrigerant by

spraying liquid refrigerant Prevent gas from blowing out

when detaching charge hose Vacuum drying and air purge

Flaring work of piping

Bend the pipes Cut the pipes Weld the pipes Refrigerant charge Check the degree of vacuum. (Vacuum valve prevents back flow of oil and refrigerant to thermistor vacuum gauge) Refrigerant charge

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

Tool exclusive for R410A Tools for other refrigerants can

be used if equipped with adapter for reverse flow check Tools for other refrigerants can be used by adjusting flaring dimension Tools for other refrigerants can be used Tools for other refrigerants can be used Tools for other refrigerants can be used Tools for other refrigerants can be used Tools for other refrigerants can be used

Tool exclusive for R410A

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

(Usable if equipped with adapter for rever se flow)

(Usable by adjusting flaring dimension)

Can R407C tools be used?

Ester oil: Alkylbenzene oil: minimum amount

(Usable if equipped with adapter for rever se flow)

(Usable by adjusting flaring dimension)

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

Dimension A

Dimension B

OCH566A

3 FEATURES

CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. (20 m (PUHZ-SP100), 30 m (PUHZ-SP125/140))

The refrigerant circuit with LEV (Linear Expansion Valve) and Accumulator always control the optimal refrigerant level regardless of the length (20 or 30 m maximum and 5 m minimum) of piping. The additional refrigerant charging work during installation which often caused problems heretofore is completely eliminated. This unique system improves the quality and reliability of the work done. It also helps to speed up the installation time.

PUHZ-SP100VHA.UK PUHZ-SP100YHA.UK

PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

OCH566A

4 SPECIFICATIONS

A A

/min(CFM

)

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

kg(lb) kg(lb)

L mm(in) mm(in)

Power supply (phase, cycle, voltage)

Running current Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices

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

Dimensions

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

Connection method Between the indoor &

outdoor unit

Mode

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

Service Ref.

PUHZ-SP100VHA.UK

Cooling

13.36 Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

TNB220FLHMT

2.9

Inverter

—

Plate fin coil

Propeller fan o 1

0.060

60(2120)

Reverse cycle

50 54

950(37-3/8)

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

943(37-1/8)

75(165)

R410A

3.0(6.6)

0.87(FV50S)

9.52(3/8)

15.88(5/8) Flared Flared

Maximum 30m Maximum 30m

Heating

15.02

HP switch

Comp. surface thermo

Single, 50Hz, 230V

OUTDOOR UNIT

REFRIGERANT PIPING

A A

/min(CFM

)

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

kg(lb) kg(lb)

L mm(in) mm(in)

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

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

Dimensions

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

Connection method Between the indoor &

outdoor unit

Mode

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

Service Ref.

PUHZ-SP140VHA.UK

PUHZ-SP125VHA.UK

Cooling

17.48 Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

TNB306FPGMT

Inverter

Plate fin coil

Propeller fan o 2

0.060+0.060 100(3,530)

Reverse cycle

950(37-3/8)

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

1,350(53-1/8)

99(218)

R410A

4.5(9.9)

0.87(FV50S)

9.52(3/8)

15.88(5/8) Flared Flared

Maximum 30m Maximum 40m

Heating

16.95

Cooling

21.65

29.5

3.9

Heating

20.81

HP switch

Comp. surface thermo

Single 50Hz, 230V

OUTDOOR UNIT

REFRIGERANT PIPING

3.4

52 56

51 55

OCH566A

A A

/min(CFM

)

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

kg(lb) kg(lb)

L mm(in) mm(in)

Power supply (phase, cycle, voltage)

Running current Max. current External finish Refrigerant control Compressor Model Motor output Starter type Protection devices

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

Dimensions

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

Connection method Between the indoor &

outdoor unit

Mode

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

Service Ref.

PUHZ-SP100YHA.UK

Cooling

4.78 Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

TNB220FLCMT

2.9

Inverter

—

Plate fin coil

Propeller fan o 1

0.060

60(2120)

Reverse cycle

50 54

950(37-3/8)

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

943(37-1/8)

77(170)

R410A

3.0(6.6)

0.87(FV50S)

9.52(3/8)

15.88(5/8) Flared Flared

Maximum 30m Maximum 30m

Heating

5.37

HP switch

Comp. surface thermo

3phase, 50Hz, 400V

OUTDOOR UNIT

REFRIGERANT PIPING

A A

/min(CFM

)

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

kg(lb) kg(lb)

L mm(in) mm(in)

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

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

Dimensions

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

Connection method Between the indoor &

outdoor unit

Mode

Cooling Heating

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

Service Ref.

PUHZ-SP140YHA.UKPUHZ-SP125YHA.UK

Cooling

6.18 Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

TNB306FPNMT

Inverter

Plate fin coil

Propeller fan o 2

0.060+0.060 100(3,530)

Reverse cycle

950(37-3/8)

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

1,350(53-1/8)

101(223)

R410A

4.5(9.9)

0.87(FV50S)

9.52(3/8)

15.88(5/8) Flared Flared

Maximum 30m Maximum 40m

Heating

5.99

Cooling

7.58 13

3.9

Heating

7.36

HP switch

Comp. surface thermo

3phase, 50Hz, 400V

OUTDOOR UNIT

REFRIGERANT PIPING

3.4

52 56

51 55

OCH566A

5 DATA

5-1. REFILLING REFRIGERANT CHARGE (R410A : kg)

5-2. COMPRESSOR TECHNICAL DATA

Piping length (one way)

10 m

20 m

30 m

40 m

Initial

charged

2.9

4.3

3.0

4.4

3.6

4.5

—

5.1

3.0

4.5

Service Ref.

PUHZ-SP100VHA.UK PUHZ-SP100YHA.UK

PUHZ-SP125VHA.UK PUHZ-SP125YHA.UK

PUHZ-SP140VHA.UK PUHZ-SP140YHA.UK

U-V U-W W-V

Service Ref.

Compressor model

Winding

Resistance

( " )

(at 20˚C)

TNB306FPGMT

0.53

TNB220FLHMT

0.88

PUHZ-SP100VHA.UK

PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK

U-V

U-W

W-V

Service Ref.

Compressor model

Winding

Resistance

( " )

PUHZ-SP100YHA.UK

PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

TNB220FLCMT

1.41

TNB306FPNMT

1.02

Additional charge is required for pipes longer than 20 or 30m.

OCH566A

5-3. NOISE CRITERION CURVES

1.5m

MICROPHONE

UNIT

GROUND

63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

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

BAND CENTER FREQUENCIES, Hz

PUHZ-SP100VHA.UK PUHZ-SP100YHA.UK

COOLING

MODE

HEATING

SPL(dB)

LINE

63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

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

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUHZ-SP125VHA.UK PUHZ-SP125YHA.UK

COOLING

MODE

HEATING

SPL(dB)

LINE

63 125 250 500 1000 2000 4000 8000

APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE

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

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUHZ-SP140VHA.UK PUHZ-SP140YHA.UK

COOLING

MODE

HEATING

SPL(dB)

LINE

OCH566A

5-4. STANDARD OPERATION DATA

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

TotalElectrical circuitRefrigerant circuitIndoor side

Outdoor

side

Representative matching

SHF

Mode

Capacity Input

Amperes

Phase , Hz Volts Current

Discharge pressure Suction pressure

Discharge temperature Condensing temperature Suction temperature Ref. pipe length

Intake air temperature

Discharge air temperature

Intake air temperature

MPa

(Of/F)

MPa

(Of/F)

°C °C °C

m °C °C

°C

°C °C

Indoor unit

D.B.

W.B.

D.B.

W.B.

PLA-SP125BA PLA-SP140BAPLA-SP100BA

PLA-SP100BA PLA-SP125BA PLA-SP140BA

Cooling

9,400

3.12

Heating

11,200

3.49

Cooling

12,300

4.08

Heating

13,500

3.96

Cooling

13,000

4.98

Heating

15,500

4.83

13.36 / 4.78

2.90

(29.6)

0.92

(9.4)

72.7

48.6

10.1 5

27 19

14.8

35 24

0.74

0.21

15.02 / 5.37

2.57

(26.2)

0.62 (6.3)

75.5

41.4

0.1 5

20 15

43.4

7 6

— —

17.48/ 6.18

2.68

(27.3)

0.86

(8.8)

67.8

45.5

6.8 5

27 19

13.6

35 24

0.71

0.18

16.95 / 5.99

2.56

(26.1)

0.68

(6.9)

64.5

43.4

1.3 5

20 15

44.2

7 6

— —

21.65 / 7.58

2.79

(28.5)

0.79

(8.1)

72.7

47.0

4.4 5

27 19

12.9

35 24

0.71

0.14

20.81 / 7.36

2.75

(28.1)

0.64 (6.5)

70.8

47.2

1.0 5

20 15

48.0

7 6

— —

1 / 3, 50

230 / 400

1 / 3, 50

230 / 400

PUHZ-SP100VHA PUHZ-SP100YHA

PUHZ-SP125VHA PUHZ-SP125YHA

PUHZ-SP140VHA PUHZ-SP140YHA

1 / 3 , 50

230 / 400

0.14

0.94

0.13

0.87

0.15

1.00

0.14

0.94

0.16

1.07

0.15

1.00

Outdoor unit

Phase , Hz Volts Input

1 , 50

230

1 , 50

230

1 , 50

230

OCH566A

6 OUTLINES AND DIMENSIONS

Unit : mm

417

56 41

(19)37028

175600175

330

2-12o36 oval holes

(Foundation Bolt M10)

Air Discharge

Rear Air Intake

Side Air Intake

2-U Shaped notched holes

(Foundation Bolt M10)

Installation Feet

Over

Less than

Piping and wiring connections

can be made from 4 directions:

front, right rear and below.

4 PIPING-WIRING DIRECTIONS

3 FOUNDATION BOLTS2 SERVICE SPACE

1 FREE SPACE (Around the unit)

Piping Knockout Hole Details

Example of Notes

1···Refrigerant GAS pipe connection (FLARE){15.88(5/8 inch)

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

w1 ···Indication of STOP VALVE connection location.

The diagram below shows a

basic example.

Explanation of particular details is

given in the installation manuals etc.

Over10

500

Over100

Dimensions of space needed

for service access are

shown in the below diagram.

Service space

Please secure the unit firmly

with 4 foundation (M10) bolts.

(Bolts and washers must be

purchased locally.)

Handle for moving

Side Air Intake

Front piping cover

Rear piping cover

14522030 145

81 219

145

Drain hole

(5-{33)

Bottom piping hole

(Knockout)

Air Intake

Rear Air Intake

Handle for moving

943

473

950

322

w1 447

w1 431

SP100VHA:670

SP100YHA:589

Terminal Connections

Left···Power supply wiring

Right···Indoor/Outdoor wiring

Earth terminal

Service panel

Handle for moving

19 55

23 27 92

4075

73 63

Right piping hole

(Knockout)

Right trunking hole

(Knockout)

Power supply wiring hole

(2-{27Knockout)

{

27 55

732363

Front piping hole

(Knockout)

Front trunking hole

(Knockout)

Power supply wiring hole

(2-{27Knockout)

{

4045

27 55 23 73 63

Rear piping hole

(Knockout)

Rear trunking hole

(Knockout)

Power supply wiring hole

(2-{27Knockout)

{

FOUNDATION

over 100mm

over 500mm

over 10mm

FREE

over 10mm

PUHZ-SP100VHA.UK PUHZ-SP100YHA.UK

OCH566A

Unit : mm

Less than

Over

Handle for moving

Side Air Intake

Front piping cover

Rear piping cover

Air intake

Rear Air Intake

Handle for moving

Terminal connection

Left···Power supply wiring

Right···Indoor/Outdoor wiring

Earth terminal

Service panel

Handle for moving

The diagram below shows a

basic example.

Explanation of particular details is

given in the installation manuals etc.

Dimensions of space needed

for service access are

shown in the below diagram.

Please secure the unit firmly

with 4 foundation (M10) bolts.

(Bolts and washers must be

purchased locally.)

Air Discharge

Rear Air Intake

Side Air Intake

1···Refrigerant GAS pipe connection (FLARE){15.88(5/8 inch)

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

w1 ···Indication of STOP VALVE connection location.

Example of Notes

Piping Knockout Hole Details

1 FREE SPACE (Around the unit)

2 SERVICE SPACE

3 FOUNDATION BOLTS

4 PIPING-WIRING DIRECTIONS

Piping and wiring connections

can be made from 4 directions:

front, right, rear and below.

FOUNDATION

150

500

Service space

600175 175

330

417

41 56

53 54

(19)28 370

2-U Shaped notched holes

(Foundation Bolt M10)

2-12 x 36 Oval holes

(Foundation Bolt M10)

Installation Feet

45 40

27 55

23 73 63

Rear piping hole

(Knockout)

Rear trunking hole

(Knockout)

Power supply wiring hole

(2-

{

27Knockout)

{

19 55

75 40

73 63 23 27 92

Right piping hole

(Knockout)

Right trunking hole

(Knockout)

Power supply wiring hole

(2-

{

27Knockout)

{

4540

27 55

73 63

Front piping hole

(Knockout)

Front trunking hole

(Knockout)

Power supply wiring hole

(2-

{

27Knockout)

{

14514522030 145

81 219

Bottom piping hole

(Knockout)

Drain hole

(5-{33)

1350

950

w1 447 w1 431

371 635

322

Handle for moving

Over 10mm

Over 150mm

Over 1000mm

FREE

SP125/140VHA: 1076

SP125/140YHA: 994

PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

OCH566A

7 WIRING DIAGRAM

1 2 3 4 5 6 7 8

OFF

100V

MODEL

SW6

*1 MODEL SELECT

*2 SW5 -1 to 5 : Function Switch *3 SP125/140 only

SW5-6 *2

OFF

1 2 3 4 5 6

1 2 3 4 5 6 7 8

OFF

125V

OFF

1 2 3 4 5 6

1 2 3 4 5 6 7 8

OFF

140V

OFF

1 2 3 4 5 6

TB1 MC MF1, MF2 21S4

TH3 TH6 TH7

DCL

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

63H High Pressure Switch

Thermistor <Liquid>

Thermistor <2-Phase Pipe>

Thermistor <Ambient> TH8 Thermistor (internal) <Heat Sink> TH32 Thermistor <Comp. Surface>

Linear Expansion Valve

Reactor

Main Smoothing Capacitor

CY1, CY2

Capacitor

Solenoid Valve (Bypass Valve)

Crankcase Heater

Controller Circuit Board

C.B.

SYMBOL NAME SYMBOL NAME SYMBOL NAME

Switch <Function Switch>

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

SW7

SW1 SW4

SW5 SW6

Switch <Function Switch>

SW8

Switch <Pump Down>

SWP

Connector <Emergency Operation>

CN31

LED1, LED2

F1, F2, F3, F4

LED <Operation Inspection Indicators>

CNM

CNDM

Connector <Connection for Option>

Fuse <T6.3AL250V

X51, X52, X54, X55

Relay

Connector <Connection for Option>

LEV-A

Power Module

Connection Terminal <Reactor>

Connection Terminal <Ground>

DCL1, DCL2 IGBT EI, E2, E3, E4

P.B.

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

Connection Terminal <N-Phase>

Connection Terminal <L-Phase>

U/V/W

Switch <Function Switch>

SW9

CN5

(WHT)

3 1

TB7

CND

(WHT)

CN2M

(WHT)

M-NET ADAPTER

M-NET

A B S

When M-NET adapter is connected

CNVMNT

(WHT)

CNDM

(WHT)

CN51

(WHT)

CNMNT

(WHT)

CNM

(WHT)

LEV-A

(WHT)

LEV-A

C. B.

TH7/6 (RED)

63H

(YLW)

TRANS

X51

TH3

(WHT)

CNDC

(PNK)

TH7 TH6 TH3

41 21

SW7

SW6SW1

SW9

CN31

141

CN2

(WHT)

CNS

(WHT)

CNAC (WHT)

CN4

(WHT)

21S4

(GRN)

LED1

LED2

X52

*1*1

SW5SW8SW4 SWP

21S4 SV

3 1

t° t° t°

TH32

(BLK)

TH32

t°

SV2

(BLU)

SV1 /CH

(GRY)

X5513X54

13 13

CN52C

(RED)

331

63H

DCL2

IGBT

MS 3~

CN2

(WHT)

CN4

(WHT)

P. B.

CNDC (PNK)

BLK

WHT

CY1 CY2

LINI

POWER SUPPLY ~/N 230V 50Hz

INDOOR UNIT

TB1

L N S1 S2 S3

REDRED

CNAC1

(WHT)

CNAC2

(RED)

CN52C

(RED)

52C

BLU

YLW

GRN/YLW

ORN

BRN

RED

WHT

RED

BLK

RED

BRN ORN

WHT

DCL1

DCL

t°

TH8

BLK

WHT

MF1

CNF1

(WHT)

CNF2

(WHT)

MF2

The black square ( ) indicates a switch position.

PUHZ-SP100VHA.UK PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK

OCH566A

PUHZ-SP100YHA.UK

The black square ( ) indicates a switch position.

SYMBOL NAME SYMBOL NAME SYMBOL NAME TB1 Terminal Block <Power Supply> RS Rush Current Protect Resistor SW4 Switch <Test Operation> TB2 Terminal Block <Indoor/Outdoor> CY1, CY2 Capacitor SW5 Switch <Function Switch, Model Select> MC Motor for Compressor P.B. Power Circuit Board SW6 Switch <Model Select> MF1 Fan Motor TB-U/V/W

Connection Terminal

<U/V/W-Phase> SW7 Switch <Function Switch>

21S4 Solenoid Valve (Four-Way Valve)

TB-L1/L2/L3 Connection Terminal <L1/L2/L3-Power Supply>

SW8 Switch <Function Switch>

63H High Pressure Switch TB-P1/P3

Connection Terminal

SW9 Switch <Function Switch>

TH3 Thermistor <Liquid>

X52CA/B

52C Relay SWP Switch <Pump Down> TH6 Thermistor <2-Phase Pipe> N.F. Noise Filter Circuit Board CN31 Connector <Emergency Operation> TH7 Thermistor <Ambient>

LI1/LI2/LI3/NI

Connection Terminal <L1/L2/L3/N-Power Supply>

SS Connector <Connection for Option>

TH8 Thermistor <Heat Sink>

LO1/LO2/LO3

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

CNDM Connector <Connection for Option>

TH32 Thermistor <Comp. Surface> GD1, GD2

Connection Terminal

<Ground> CNM Connector <Connection for Option>

LEV-A Linear Expansion Valve C.B. Controller Circuit Board

LED1, LED2

LED <Operation Inspection Indicators>

DCL Reactor

SW1

Switch <Manual Defrost, Defect History,

Record Reset, Refrigerant Address>

F1, F2, F3, F4

Fuse <T6.3AL250V>

ACL4 Reactor

X51, X52, X54, X55

Relay

TB7 Terminal Block <M-NET connection>

SYMBOL NAME

CN5

Connector <Transmission>

CND

Connector <Power Supply>

CN2M

Connector <M-NET communication>

M-NET ADAPTER

TH8

t°

LEV-A (WHT)

CNVMNT

(WHT)

CN4

(WHT)

CNMNT (WHT)

3151

CN5

(WHT)

3 1

TB7

CND

(WHT)

CN2M (WHT)

M-NET

When M-NET adapter is connected

CNS

(WHT)

21S4

(GRN)

MF1

TRANS

CNF1

(WHT)

CNDC

(PNK)

CN2

(WHT)

CNAC (WHT)

SV2

(BLU)

X55

X51

X52

(WHT)

ACL4

BLK

WHT

RED

BLK

BLU

GRN/YLW

WHT

RED

CNAC1

(WHT)

CNCT (RED)

CNAC2

(RED)

CNL

(BLU)

CNDC

(PNK)

P.B.

C.B.

N.F.

LO1

GD2

LO2

LO3

LI1

LI2

LI3

TB1

TB2

POWER SUPPLY 3N~ 400V 50Hz

INDOOR UNIT

TH7/6 (RED)

63H

(YLW)

TH3

(WHT)

TH7 TH6 TH3

41 21

t° t° t°

TH32 (BLK)

TH32

t°

63H

72 2

3121

LEV-A

LED1

LED2

CNM

(WHT)

CNDM

(WHT)

CN51

(WHT)

SW7

SW6SW1

SW9

CN31

*1*

SW5SW8SW4 SWP

21S4

A B S

1331

L1 L2 L3

S1 S2 S3

YLW

CY2

CY1

ORN

BLK

BRN

M-NET ADAPTER

BLK

GD1

SV1

/CH

(GRY)

X54

1 2 3 4 5 6 7 8

OFF

100Y

MODEL

SW6

1 MODEL SELECT

2 SW5 -1 to 5 : Function Switch

SW5-6 *2

OFF

1 2 3 4 5 6

CN6

(WHT)

CN5

(RED)

CN2

(WHT)

CN4

(WHT)

TB-U

TB-V

TB-W

DCL

RED

WHT

BLK

WHT

RED

BLK

RED

X52CA

BLK

71 2122 11

TB-P3

TB-P1

TB-L3

TB-L2

L3IN

TB-L1

+ + + + + +

X52CB

L3OUT

OCH566A

PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

TB1

MC MF1, MF2 21S4

TH3 TH6 TH7

LEV-A ACL4

Terminal Block<Power Supply >

TB2 Terminal Block<Indoor/Outdoor >

Motor for Compressor Fan Motor Solenoid Valve (Four-Way Valve)

63H High Pressure Switch

Crankcase Heater

Solenoid Valve (Bypass Valve)

Thermistor<Liquid>

Thermistor<2-Phase Pipe>

Thermistor<Ambient> TH8 Thermistor (internal) <Heat Sink> TH32 Thermistor<Comp. Surface>

Electronic Expansion Valve

Reactor

DCL

Reactor

Rush Current Protect Resistor

CY1,CY2

Capacitor

CB1, CB2

Main Smoothing Capacitor

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

P.B.

TB-U/V/W

Noise Filter Circuit Board Connection Terminal

<L1/L2/L3/N-Power Supply

N.F.

LI1/LI2/LI3/NI

Connection Terminal

<L1/L2/L3/N-Power Supply

LO1/LO2/LO3

Controller Circuit Board

SW8

Connector<Emergency Operation>

CN31

C.B.

Connection Terminal<Ground>

GD1, GD2

SYMBOL NAME SYMBOL NAME SYMBOL NAME

Connection Terminal

TB-P1

Connection Terminal

<L1/L2/L3-Power Supply

TB-L1/L2/L3

Switch<Function Switch>

SW9

Switch<Pump Down>

SWP

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

Switch<Function Switch, Model Select>

Switch<Function Switch> Switch<Function Switch>

SW1

SW5

Switch<Model Select>

SW6 SW7

Switch<Test Operation>

SW4

LED1,LED2

LED<Operatiion Inspection Indicators>

CNM

Connector<Connection for Option>

CNDM

Connector<Connection for Option>

FUSE<T6.3AL250V>

F1,F2,F3,F4

Connection Terminal

TB-P2

Connection Terminal

TB-C1

Connection Terminal

TB-N1

52C Relay

X52A

X51,X52,X54,X55

Relay

TB7 Terminal Block <M-NET connection>

SYMBOL NAME

CN5

Connector <Transmission>

CND

Connector <Power Supply>

CN2M

Connector <M-NET communication>

M-NET ADAPTER

1 2 3 4 5 6 7 8

MODEL

SW6

*1 MODEL SELECT

*2 SW5 -1 to 5 : Function Switch

SW5-6 *2

OFF

125Y

OFF

1 2 3 4 5 6

OFF

140Y

is the switch position

LEV-A (WHT)

CNVMNT

(WHT)

CN4

(WHT)

CNMNT

(WHT)

3151

2 1

CNS

(WHT)

21S4

(GRN)

MF1

TRANS

CNF1 (WHT)

CNF2 (WHT)

CNDC

(PNK)

CN2

(WHT)

CNAC (WHT)

SV2

(BLU)

X55

X51

X52

(WHT)

+ +

ACL4

DCL

X52A

TB-P1

CN2

(WHT)

TB-P2

CB1 CB2

TB-C1 TB-N1

TB-W

BLK WHT RED

RED

BLK WHT RED

BLK

WHT

RED

BLK

BLU

GRN/YLW

WHT

RED

TB-V

TB-U

TB-L3 TB-L2 TB-L1

V U

CN4

(WHT)

CNAC1

(WHT)

CN5

(RED)

CNCT (RED)

CNAC2

(RED)

CNL

(BLU)

CNDC (PNK)

P.B.

C.B.

N.F.

LO1

GD1

GD2

LO2

LO3

LI1

LI2

LI3

TB1

TB2

POWER SUPPLY 3N~ 400V 50Hz

INDOOR UNIT

TH7/6 (RED)

63H

(YLW)

TH3

(WHT)

TH7 TH6 TH3

41 21

t° t° t°

TH32 (BLK)

TH32

t°

63H

RED

WHT

BLK

3121

LEV-A

LED1

LED2

CNM

(WHT)

CNDM

(WHT)

CN51

(WHT)

SW7

SW6SW1

SW9

CN31

*1*1

SW5SW8SW4 SWP

SV21S4

1331

L1 L2 L3

S1 S2 S3

YLW

CY2

CY1

ORN

BRN

SV1 /CH

(GRY)

X54

CN5

(WHT)

3 1

TB7

CND

(WHT)

CN2M (WHT)

M-NET

When M-NET adapter is connected

A B S

M-NET ADAPTER

t°

TH8

MF2

OCH566A

8 WIRING SPECIFICATIONS

Outdoor unit model Outdoor unit power supply

Outdoor unit input capacity

Main switch (Breaker)

Outdoor unit power supply Indoor unit-Outdoor unit *2 Indoor unit-Outdoor unit earth *2 Remote controller-Indoor unit *3 Outdoor unit L-N (single)

Outdoor unit L1-N, L2-N, L3-N (3 phase) Indoor unit-Outdoor unit S1-S2 *4 Indoor unit-Outdoor unit S2-S3 *4 Remote controller-Indoor unit *4

Wiring

Wire No. o

size (mm

)

Circuit rating

SP100, 125V SP140V

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

230 V 230 V

32 A 40 A

3 o Min. 4 3 o Min. 6

3 o 1.5 (Polar) 3 o 1.5 (Polar)

1 o Min. 1.5 1 o Min. 1.5

2 o 0.3 (Non-polar) 2 o 0.3 (Non-polar)

230 V AC

24 V DC

SP100/125/140Y

3N~ (3ph,4-wires),

50Hz, 400 V

16 A

5 o Min. 1.5

3 o 1.5 (Polar)

1 o Min. 1.5

2 o 0.3 (Non-polar)

*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use earth leakage breaker(NV).

*2. Refer to “8-3. INDOOR – OUTDOOR CONNECTING CABLE”. *3. The 10 m wire is attached in the remote controller accessory. *4. The figures are NOT always necessarily the voltage to ground.

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

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

2. Power supply cords and Indoor/Outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flexible cord. (Design 60245 IEC 57)

3. Install an earth longer than other cables.

Warning: In case of A-control wiring, there is high v oltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between po wer 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.

A-Control

Outdoor Unit

3 poles isolator

Power supply

Isolator

A-Control

Indoor Unit

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

Make sure that the current leakage breaker is one compatible with higher harmonics. Always use a current leakage breaker that is compatible with higher harmonics as this unit is equipped with an inverter. The use of an inadequate breaker can cause the incorrect operation of inverter.

230 V AC

230 V AC 230 V AC 230 V AC

24 V DC

12 V DC

8-1. FIELD ELECTRICAL WIRING (power wiring specifications)

1 2

S1 S2 S3

Indoor/outdoor unit connection cable

Indoor unit

Unit power supply

Outdoor unit

Remote controller

B Earth leakage breaker C wiring circuit breaker or

isolating switch

1:1 system

OCH566A

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

L N

1 2

L N

S1 S2 S3

JEB

H

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

A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit E Indoor unit/outdoor unit connecting cords F Remote controller G Indoor unit H Option J Indoor unit power supply

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.

ON OFF 1 2

(SW8)

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

Indoor unit specifications

Required Required

Required

*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV). *2. Maximum 120 m *3. The 10 m wire is attached in the remote controller accessory. Maximum 500 m *4. The figures are NOT always necessarily the voltage to ground.

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

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

3. Install an earth longer than other cables.

Indoor unit model Indoor unit power supply Indoor unit input capacity

Main switch (Breaker)

Indoor unit power supply Indoor unit power supply earth Indoor unit-Outdoor unit

Indoor unit-Outdoor unit earth Remote controller-Indoor unit

Indoor unit L-N *4

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

SP100/125/140

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

16 A

2 o Min. 1.5 1 o Min. 1.5 2 o Min. 0.3

–

2 o 0.3 (Non-polar)

230 V DC

– 24 V DC 12 V DC

Circuit

rating

Wiring

Wire No. o size

(mm

)

Electric heater (For models with heater)

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

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

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

Connectors

Indoor unit

control board

Separate indoor unit/outdoor unit power supplies

Electric heater (For models with heater)

S1 S2 S3

BLUE

YELLOW

CND or

CN01

S1 S2 S3

YELLOW

BLUE

YELLOW

Indoor unit

control board

There are three types of labels (labels A, B and C). Affix the appropriate labels to the units according to the wiring method.

Set the SW8-3 to ON.

;

CND or

CN01

Note:

8-2. SEPARATE INDOOR UNIT/OUTDOOR UNIT POWER SUPPLIES

OCH566A

8-3. INDOOR – OUTDOOR CONNECTING CABLE

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

Indoor unit-Outdoor unit

Outdoor power supply

Max. 45m

3 o 1.5 (polar)

1 o Min. 1.5

Max. 50m

3 o 2.5 (polar)

1 o Min. 2.5

Max. 80m

3 o 2.5 (polar) and S3 separated

1 o Min. 2.5

Indoor unit-Outdoor unit earth

Wire No. o Size (E)

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 earth or a poor electrical contact at the intermediate connection point.

Indoor unit-Outdoor unit

Indoor/Outdoor separate power supply

Max. 120m

2 o Min. 0.3

—

Indoor unit-Outdoor unit earth

Wire No. o Size (E)

*Note: The optional indoor power supply terminal kit is necessary.

*1 : In case that cable with stripe of yellow and green is available. *2 : In case that the flat cables are connected as this picture, they can be used up to 80m.

*3 : In case of regular polarity connection (S1-S2-S3), wire size is 1.5mm

. *4 : In case of regular polarity connection (S1-S2-S3) *5 : Mentioned cable length is just a reference value. It may be different depending on the condition of installation, humidity or materials, etc.

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

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

Cross section

of cable

Round

2.5

1.5

2.5

Not

applicable

Flat

Round

Wire size

(mm

)

Number

of wires

Clockwise : S1-S2-S3

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

Not applicable (Because center wire has no cover finish)

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

Polarity L(m) *5

(3C Flat cable × 2)

S1 S2 S3

OCH566A

8-4. M-NET WIRING METHOD

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

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

(2) Terminal block (TB7) for transmission wires should never be connected to V power supply. If it is connected, electronic

parts on M-NET P.C. board may burn out.

(3) Use 2-core × 1.25 mm² shield wire (CVVS, CPEVS) for the transmission wire. Transmission signals may not be sent or

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

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

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

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

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

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

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

not form 1 circuit.

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

installation manual.

Centralized controller

Refrigerant address 00

M-NET address 01

A-control remote

controller

A-control remote controller

A-control remote

controller

Refrigerant address 00

M-NET address 02

Refrigerant address 00

M-NET address 03

Power

supply unit

Centralized

controller

M-NET transmission wire

5 Bad example (Multi spot earthing of shield wire)

Good example 1 (Single spot earthing of shield wire)

Power

supply unit

M-NET type outdoor unit

M-NET transmission wire

M-NET type outdoor unit

M-NET transmission wire

M-NET type outdoor unit

Good example 2 (Single spot earthing of shield wire)

Centralized

controller

Centralized

controller

Power

supply unit

Power

supply unit

OCH566A

8-4-3. Regulations in address settings

In the 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.

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

* 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”.

8-4-1. M-NET address setting

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

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

8-4-2. Refrigerant address setting

In the 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”.)]

1 2

M-NET Address No.

Switch setting

SW11 1s digit

SW12 10s digit

OFF

Refrigerant address

The black square (

■

) indicates a switch position.

OFF

A-control remote controller

Group A Group B Group C

A-control remote controller

TB5

A-control remote controller

Refrigerant address 00

M-NET address 01

Refrigerant address 00

M-NET address 02

Refrigerant address 01

M-NET address 03

Refrigerant address 00

M-NET address 04

Power

supply unit

Centralized

controller

Power

supply unit

A-control remote controller

TB5

Group A Group B

Refrigerant address 00

M-NET address 01

Refrigerant address 01

M-NET address 02

Refrigerant address 00

M-NET address 04

Refrigerant address 01

M-NET address 03

Refrigerant address 02

M-NET address 05

Centralized

controller

M-NET wiring

(1) Use 2-core × 1.25 mm² 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 trans-

mission wire (no-polarity) to A terminal and the other to B. Peel the shield wire,

twist the shield part to a string and connect it to S terminal. (3) In the system which several outdoor units are being connected, the terminal (A, B, S) on M-NET terminal block should be individually wired to the other outdoor unit’s terminal, i.e. A to A, B to B and S to S. In this case, choose one of those outdoor units and drive a screw

to fix an ground wire on the plate as shown on the right figure.

Transmission

wire

Shield part

M-NET terminal block

Earth wire

A B S

OCH566A

9 REFRIGERANT SYSTEM DIAGRAM

Unit : mm (inch)

Accumulator

Compressor

Refrigerant GAS pipe

15.88

mm([

5/8)

Refrigerant LIQUID pipe

9.52

mm([

3/8)

4-way valve

Service port (check)

High pressure protect switch

Linear expansion valve

Muffler

Stop valve

(#50)

Strainer

(#100)

Strainer

(#100)

Stop valve

(with service port)

Strainer (#40)

Thermistor (TH3)

Capillary tube (

[

4.0o[3.0o-L200)o2

Thermistor (TH6)

Distributor

Bypass valve

Outdoor heat exchanger

Thermistor (TH3)

Thermistor (TH6)

Distributor

Service port (check)

Accumulator

Compressor

Refrigerant GAS pipe

15.88mm([5/8)

Refrigerant LIQUID pipe

9.52mm([3/8) Stop valve

(with service port)

4-way valve

Service port (check)

High pressure protect switch

Linear expansion valve

Thermistor (TH32)

Muffler

Stop valve

(#50)

Strainer

(#100)

Strainer

Strainer (#40)

(#100)

Strainer

Refrigerant flow in cooling Refrigerant flow in heating

PUHZ-SP100VHA.UK PUHZ-SP100YHA.UK

PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

OCH566A

9-2. START AND FINISH OF TEST RUN

• Operation from the indoor unit

Execute the test run using the installation manual for the indoor unit.

• Operation from the outdoor unit

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

1 Set the operation mode (cooling/heating) using SW4-2.

2 Turn on SW4-1 to start the test run with the operation mode set by SW4-2. 3 Turn off SW4-1 to finish the test run.

•

There may be a faint knocking sound around the machine room after power is supplied. However, this is not a 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. However, this is not a problem with product because the check valve itself gener-

ates the sound due to small pressure difference in the refrigerant circuit.

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

OFF

1 2

<SW4>

A B

C D

A Stop C

Operation

B Cooling D Heating

9-1. REFRIGERANT COLLECTING (PUMP DOWN)

When relocating or disposing of the indoor/outdoor unit, pump down the system following the procedure below so that no refriger-

ant is released into the atmosphere.

1 Turn off the power supply (circuit breaker). 2 Connect the low-pressure valve on the gauge manifold to the charge plug (lowpressure side) on the outdoor unit. 3 Close the liquid stop valve completely. 4 Supply power (circuit breaker).

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

TRALLY CONTROLLED” is displayed, the refrigerant collecting (pump down) cannot be completed normally.

• Start-up of the indoor-outdoor communication takes about 3 minutes after the power (circuit breaker) is turned on. Start the pump-down operation 3 to 4 minutes after the power (circuit breaker) is turned on.

5 Perform the refrigerant collecting operation (cooling test run).

• Push the pump-down SWP switch (push-button type) on the control board of the outdoor unit. The compressor and ventilators (indoor and outdoor units) start operating (refrigerant collecting operation begins). (LED1 and LED2 on the control board of the outdoor unit are lit.)

• Only push the pump-down SWP switch if the unit is stopped. However, even if the unit is stopped and the pump-down SWP switch is pushed less than 3 minutes after the compressor stops, the refrigerant collecting operation cannot be performed. Wait until the compressor has been stopped for 3 minutes and then push the pump-down SWP switch again.

6 Fully close the stop valve on the gas pipe side of the outdoor unit when the pressure gauge on the gauge manifold shows 0.05

to 0 MPa [Gauge] (approx. 0.5 to 0 kgf/cm²) and quickly stop the air conditioner.

• Because the unit automatically stops in about 3 minutes when the refrigerant collecting operation is completed (LED1 off, LED2 lit), be sure to quickly close the gas stop valve. However, if LED1 is lit, LED2 is off, and the unit is stopped, open the liquid stop valve completely, close the valve completely after 3 minutes or more have passed, and then repeat step 5. (Open the gas ball valve completely.)

• If the refrigerant collecting operation has been completed normally (LED1 off, LED2 lit), the unit will remain stopped until the power supply is turned off.

• Note that when the extension piping is very long with a large refrigerant amount, it may not be possible to perform a pumpdown operation. In this case, use refrigerant recovery equipment to collect all of the refrigerant in the system.

7 Turn off the power supply (circuit breaker), remove the gauge manifold, and then disconnect the refrigerant pipes.

Warning:

When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes.

• If the refrigerant pipes are disconnected while the compressor is operating and the stop valve (ball valve) is open, the

pressure in the refrigeration cycle could become extremely high if air is drawn in, causing the pipes to burst, personal injury, etc.

OCH566A

10 TROUBLESHOOTING

Present and past check codes are logged, and they can be 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 in the field, are summa-

rized in the table below. Check the contents below before investigating details.

10-1. TROUBLESHOOTING

Unit conditions at service

Check code

Actions to be taken for service (summary)

The trouble is reoccurring.

Displayed

Not displayed

Judge what is wrong and take a corrective action according to “10-4. SELF-DIAGNOSIS ACTION TABLE”.

Conduct trouble shooting and ascertain the cause of the trouble according to “10-5. TROUBLESHOOTING OF PROBLEMS”.

The trouble is not reoccurring.

Logged

Not logged

1Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor, poor connection of wiring, noise, etc. Re-check the symptom, and check the installation environment, refrigerant amount, weather when the trouble occurred, matters related to wiring, etc. 2Reset check code logs and restart the unit after finishing service. 3There is no abnormality concerning of parts such as electrical component, controller board, remote controller, etc.

1Re-check the abnormal symptom. 2Conduct trouble shooting and ascertain the cause

of the trouble

according to “10-5. TROUBLESHOOTING OF PROBLEMS”. 3Continue to operate unit for the time being if the cause is not ascertained. 4There is no abnormality concerning of parts such as electrical component, controller board, remote controller, etc.

10-2. CHECK POINT UNDER TEST RUN

10-2-1. 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 500 V Megger

and check that it is 1.0 M" or over. *Do not use 500V Megger to indoor/outdoor connecting wire terminal block (S1, S2, S3) and remote controller terminal block (1,2). This may cause malfunction.

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

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

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

of settings 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.)

OCH566A

F1 F2 F3 F4

unem ecivreS

rosruC

:unem niaM

Test run Input maintenance info. Function setting Check Self check

F1 F2 F3 F4

Test run menu

Cursor

Service menu:

Test run Drain pump test run

Select "Service" from the Main menu, and press the button.

Select "Test run" with the F1 or F2 button, and press the button.

Select "Test run" with the F1

or F2 button, and press the button.

F1 F2 F3 F4

Cool

Pipe

Auto

Switch disp.

Mode Fan

RemainTest run

F1 F2 F3 F4

Remain

Vane

Cool mode: Check the cold air blow off. Heat mode: Check the heat blow off.

Press the F1

button to go through the operation modes in the order of "Cool

and Heat".

Check the auto vane with the F1

F2 buttons.

Press the

button to return to “Test run operation”.

Press the

button.

When the test run is completed, the “Test run menu” screen will appear. The test run will automatically stop after two hours.

Test run operation

Auto vane check

Press the button and open the Vane setting screen.

Function buttons

F1 F2 F3 F4

MENU RETURN SELECT ON/OFF

10-2-2. Test run for wired remote controller <PAR-31MAA>

Check the operation of the outdoor unit’s fan.

OCH566A

F1 F2 F3 F4

Error information

Error code Error unit IU Ref. address Unt# Model name Serial No.

ResetPage

Error information

Contact information Dealer Tel

ResetPage

Reset error: Reset button

blinks

Check code, error unit, refrigerant address, unit model name, and serial

number will appear.

The model name and serial number will appear only if the information have been registered.

Press the

button to go to the next page.

When an error occurs, the following screen will appear. Check the error status, stop the operation, and consult your dealer.

Contact information (dealer's phone number) will appear if the information have been registered.

F1 F2 F3 F4

Error information

Error reset

Error code Error unit IU Ref. address Unt# Model name Serial No.

ResetPage

Reset current error?

Error reset

OKCancel

Main menu:

Reset error: Reset button

blinks

Press the

button or the button to reset the error that is occurring.

Errors cannot be reset while the ON/OFF operation is prohibited.

Select "OK" with the

button.

Navigating through the screens

• To go back to the Main menu ..........

button

OCH566A

F1 F2 F3 F4

Main

Main display:

Cursor Page

Main menu

Restriction Energy saving Night setback Filter information Error information

blinks

While no errors are occurring, page 2/2 of the error information can be viewed by selecting "Error information" from the Main menu. Errors cannot be reset from this screen.

F1 F2 F3 F4

unem ecivreS

rosruC

:unem niaM

Test run Input maintenance info. Function setting Check Self check

Check menu

Cursor

Service menu:

Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Request code

F1 F2 F3 F4

Error history

Page

Delete

Check menu:

Error Unt#

dd/mm/yy

Error history

Cancel OK

Delete error history?

Error history

Check menu:

Error history deleted

Select "Error history" with the F1 or F2 button, and press the button.

Select "Check" with the F1

or F2 button, and press the button.

Select "Error history" from the Check menu, and press the button to view up to 16 error history records.

Four records are shown per page, and the top record on the rst page indicates the latest error record.

Error history

To delete the error history, press the F4 button (Delete) on the screen that shows error history.

A conrmation screen will appear asking if you want to delete the error history.

Press the F4

button (OK) to delete the history.

"Error history deleted" will appear on the screen.

Press the

button to go back to the Check menu screen.

Deleting the error history

Select "Service" from the Main menu, and press the button.

OCH566A

ON/OFF

TEMP

FAN

VANE

MODE

CHECK

LOUVER

TEST RUN

AUTO STOP

AUTO START

min

TEST RUN

RESET

SET

CLOCK

3,4

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 1.0 M".

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

(Start this operation from the status of remote controller display

turned off.)

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

check whether cool air blows out from the unit.

4 Press the ( ) button to activate mode, then

check whether warm air blows out from the unit.

5 Press the button and check whether strong air blows out

from the unit.

6 Press the button and check whether the auto vane operates

properly.

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

Note:

• Point the remote controller towards the indoor unit receiver

while following steps 2 to 7.

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

MODE

COOL

HEAT

TEST RUN

FAN

VANE

TEST RUN

10-2-3. Test run for wired remote controller <PAC-YT52CRA>

1 Before making a test run, refer to the “Test Run” section of the

indoor unit installation manual.

2 When the A button and B button are pressed

simultaneously for 2 seconds or

longer, test run is performed.

3 Stop the test run by pressing the A button. 4 If trouble occurred during the test run, refer to the “Test Run”

section of the indoor unit installation manual.

Indoor unit piping temperature

Display range: -20ºC (-4ºF) to 70ºC (158ºF) “-20ºC” or “70ºC” flashes on the display.

Test run time

The remaining time for test run is displayed. Display range: 2:00 to 0:01 After two hours, the test run stops automatically.

OFF

10-2-4. Test run for wireless remote controller

OCH566A

F1 F2 F3 F4

unem ecivreS

rosruC

:unem niaM

Test run Input maintenance info. Function setting Check Self check

kcehc fleS

:tceleS

Ref. address

sserddA

kcehc fleS

Ref. address

Return:

teseR

Error Unt #

CI.prG

Self check

Return:

Reset

Grp.

Error Unt #

Ref. address

When there is no error history

Self check

Delete error history?

Ref. address

Cancel OK

Self check

Return:

Ref. address

Error history deleted

With theF1orF2button, enter the refrigerant address, and press the button.

Select "Self check" with the F1 or F2 button, and press the button.

Select "Service" from the Main menu, and press the button.

Check code, unit number, attribute will appear.

"-" will appear if no error history is available.

Resetting the error history.

Press theF4button (Reset) on the screen that shows the error history.

A conrmation screen will appear asking if you want to delete the error history.

Press the

button (OK) to delete the error history.

If deletion fails, "Request rejected" will appear. "Unit not exist" will appear if no indoor units that are correspond to the entered address are found.

Navigating through the screens

• To go back to the Main menu ..........

button

• To return to the previous screen .......

button

10-3. HOW TO PROCEED "SELF-DIAGNOSIS"

10-3-1. Self-diagnosis <PAR-31MAA>

OCH566A

If operations cannot be completed with the remote controller, diagnose the remote controller with this function.

F1 F2 F3 F4

unem ecivreS

rosruC

:unem niaM

Maintenance password Remote controller check

F1 F2 F3 F4

Remote controller check

:nigeB

Start checking?

Remote controller check

:nigeB

Start checking?

Select "Service" from the Main menu, and press the button.

Select "Remote controller check" with the F1

or F2 button, and press

the

button.

Select "Remote controller check" from the Service menu, and press the but-

ton to start the remote controller check and see the check results.

To cancel the remote controller check and exit the Remote controller check menu screen, press the

or the button.

The remote controller will not reboot itself.

Check the remote controller display and see if anything is displayed (including lines). Nothing will appear on the remote controller display if the correct voltage (8.5 – 12 VDC) is not supplied to the remote controller. If this is the case, check the remote controller wiring and indoor units.

OK: No problems are found with the remote controller. Check other

parts for problems.

E3, 6832: There is noise on the transmission line, or the indoor unit or another

remote controller is faulty. Check the transmission line and the other remote controllers.

NG (ALL0, ALL1):

Send-receive circuit fault. Remote controller needs replacing.

ERC:

The number of data errors is the discrepancy between the number of bits in the data transmitted from the remote controller and that of the data that was actually transmitted over the transmission line. If data

errors are found, check the transmission line for external noise inter-

ference.

Remote controller check results screen

If the button is pressed after the remote controller check results are displayed, remote controller check will end, and the remote controller will automati-

cally reboot itself.

10-3-2. Remote controller check <PAR-31MAA>

OCH566A

10-3-3. Self-diagnosis <PAC-YT52CRA>

Retrieve the error history of each unit using the Simple MA controller.

1 Switch to the self-diagnosis mode.

When the A button and the button are pressed for 5 seconds or longer, the

figure shown below is

Set the address or refrigerant address No. you want to self-diagnosis. When the

and

are pressed, the address decreases and increases between 01 and 50 or 00 and 15.

Set it to the address No. or refrigerant address No. you want to self-diagnosis.

OFF

. .

Self-diagnosis address or self-diagnosis refrigerant address

Approximately three seconds after the change operation, the self-diagnosis refrigerant address changes from flashing to a steady light and selfdiagnosis begins.

Self-diagnosis result display <error history>

the contents of the check code, refer to the indoor unit installation

Check code 4 digits or check code 2 digits

Error detection attribute Address 3 digits or

unit address No. 2 digits

(Alternate display)

Error history reset The error history is displayed in 3 self-diagnosis results display. When the

D button is pressed two times successi

vely within 3 seconds, the self-

diagnosis object address

When the error history was reset, the display shown below appears. When error history reset is failed, the error contents are displayed again.

Self-diagnosis reset

There are the following two ways of resetting self-diagnosis. Press the

A button and the C button simultaneously for 5 seconds or longer.

→

Resets self-diagnosis and returns to the state before self-diagnosis.

Press the

button. → Self-diagnosis resets and indoor units stop.

prohibited, this operation is ineffective.)

OFF

displayed.

manual or service handbook.)

and refrigerant address flash.

(For

(When operation is

OCH566A

10-3-4. Remote Controller Check <PAC-YT52CRA>

When the air conditioner cannot be controlled from the Simple MA controller, use this function

to check the remote controller.

First, check the power mark.

When normal voltage (DC12V) is not applied to the remote

controller, the power mark goes off.

When the power mark is off, check the remote controller wiring and the indoor unit.

Switch to the remote controller check mode. When the B

button and

button are pressed simultaneously for 5 seconds or

longer, the figure

When the

button is pressed, remote controller check begins.

ON OFF

Remote controller check result

Since there is no problem at the remote controller, check for other causes.

(Error display 1) “NG” flashes →

Remote controller send/receive circuit abnormal

Remote controller switching is necessary.

When the problem is other than the checked remote controller

(Error display 2) “E3” “6833” “6832” flash

→

Cannot send

(Error display 3) “ERC” and data error count are displayed

→

Data error generation

There is noise on the transmission line, or the indoor unit or another remote controller is faulty. Check the transmission line and the other remote controllers.

“Data error count” is the difference between the number of bits of remote controller send data and the number of bits actually sent to the transmission line. In this case, the send data was disturbed by the noise, etc. Check the transmission line.

When data error count is 02

Remote controller send data Send data on transmission line

Remote controller check reset

When the

button and

button are pressed simultaneously for 5 seconds or

longer, remote controller

and run lamp flash for a certain period of time, and then the remote controller returns to its

diagnosis is

reset, the [HO]

shown below is displayed.

Power mark

state before diagnosis.

OCH566A

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

• Check that the remote controller's dis-

play 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 out-

door unit installation manual.)

• If an air conditioner error occurs, the

indoor unit's sensor emits an intermit-

tent buzzer sound, the operation light flashes, and the check code is output. (It takes 3 seconds at most for check code to appear.)

• The check mode is cancelled.

[Procedure]

1. Press the CHECK button twice.

2. Press the TEMP buttons.

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

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

<Malfunction-diagnosis method at maintenance service>

10-3-5. Self-diagnosis <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.

ON/OFF

TEMP

FAN

VANE

MODE

CHECK

LOUVER

TEST RUN

AUTO STOP

AUTO START

min

RESET

SET

CLOCK

CHECK

CHECK display

Temperature button

CHECK button

Refrigerant address display

HOUR button

ON/OFF button

OCH566A

[Output pattern A] Errors detected by indoor unit

[Output pattern B]

Notes:

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

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

the OPERATION INDICATOR lamp does not come on,

there are no error records.

2. If the beeper sounds 3 times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 seconds.)” after the initial two beeps to confirm the self-check start signal was received, the specified refrigerant address is incorrect.

OPERATION INDICATOR lamp

blink

pattern

Beep Beep Beep Beep Beep

Beep Beep

Off

Approx. 2.5 sOnApprox. 3 sOn0.5 sOn0.5 sOn0.5 s

0.5 s

Off

Approx. 2.5 sOnApprox. 3 sOn0.5 sOn0.5 s

··· Repeated

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

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

1st2nd3

1st2

Self-check starts (Start signal received)

Beeper sounds

[Output pattern B]

OPERATION INDICATOR lamp blink pattern

Beep

Beep Beep Beep Beep Beep Beep

Off

Approx. 2.5 sOn0.5 sOn0.5 sOn0.5 s

0.5 s

Off

Approx. 2.5 sOn0.5 sOn0.5 s

··· Repeated

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

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

1st2nd3

1st2

Self-check starts (Start signal received)

Beeper sounds

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

Beeper sounds/OPERATION

INDICATOR lamp blinks Check code

Symptom Remark

(Number of times)

Wireless remote controller

Wired remote controller

Beeper sounds/OPERATION

INDICATOR lamp blinks Check code

(Number of times)

Wireless remote controller

Wired remote controller

1 P1

Intake sensor error

P9 Pipe (TH5) sensor error

P2 Pipe (TH2) sensor error

3 E6,E7

Indoor/outdoor unit communication error 4 P4 Drain sensor error/Float switch connector (CN4F) open 5 P5 Drain pump error

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

–

– –

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

Symptom Remark

Indoor/outdoor unit communication error

(Transmitting error) (Outdoor unit)

Open/short of outdoor unit thermistors

Compressor overcurrent interruption (When compressor locked)

Abnormal high discharging temperature/49 operated/ insufficient refrigerant

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

Abnormal temperature of heatsink

Outdoor unit fan protection stop

Compressor overcurrent interruption/Abnormal of power module

Abnormality of superheat due to low discharge temperature

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

12 13

UP U3,U4 UF

U1,Ud

U8 U6 U7

U9,UH

Others

– –

Other errors

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

As for indoor unit, refer to indoor units service manual.

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

–

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

Remote controller transmission error

Abnormality of refrigerant circuit

Compressor overcurrent interruption

OCH566A

10-4. SELF-DIAGNOSIS ACTION TABLE

Note: Refer to indoor unit section for code P and code E.

Check code

Abnormal points and detection method

Case

Judgment and action

None —

1 No voltage is supplied to terminal

block (TB1) of outdoor unit.

a) Power supply breaker is

turned off.

b) Contact failure or

disconnection of power supply terminal

c) Open phase (L or N phase)

2 Electric power is not supplied

to power supply terminal of outdoor power circuit board.

a) Contact failure of power

supply terminal

b) Open phase on the outdoor

power circuit board :Disconnection of connector LI or NI (VHA)

3 Electric power is not supplied to

outdoor controller circuit board.

a) Disconnection of connector

(CNDC)

4 Disconnection of reactor (DCL)

5 Disconnection of outdoor noise

filter circuit board or parts failure in outdoor noise filter circuit board. (YHA)

6 Defective outdoor power circuit

board

7 Defective outdoor controller

circuit board

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 Disconnection of connector LI or NI (VHA) Refer to "10-9. TEST POINT DIAGRAM".

Check connection of the connector (CNDC)

on the outdoor controller circuit board. Check connection of the connector (CNDC) on the outdoor power circuit board (VHA) / the noise filter (YHA). Refer to "10-9. TEST POINT DIAGRAM".

4 Check connection of reactor (DCL). "DCL1" and "DCL2" on the power circuit

board (VHA).

5 a) Check connection of outdoor noise filter

circuit board.

b) Replace outdoor noise filter circuit board.

Refer to "10-9. TEST POINT DIAGRAM".

6 Replace outdoor power circuit board.

7 Replace outdoor controller circuit board (When

items above are checked but the units cannot be repaired).

(5201)

63H connector open

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

1 Disconnection or contact failure

of 63H connector on outdoor controller circuit board

2 Disconnection or contact failure

of 63H

3 63H is working due to defective

parts.

4 Defective outdoor controller

circuit board

1 Check connection of 63H connector on

outdoor controller circuit board.

Refer to "10-9. TEST POINT DIAGRAM".

2 Check the connecting wire on 63H side.

3 Check continuity by tester.

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

OCH566A

Abnormal points and detection method Judgment and action

(6845)

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.

(6846)

Start-up time over

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

Case

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 the 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 the case of group control) 8 Noise has entered into power

supply or indoor/outdoor unit connecting wire.

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”.

1 Check disconnection or looseness or polarity

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.

Note:

The descriptions above, 1–8, are for EA, Eb and EC.

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.

(6844)

Check code

OCH566A

Abnormal points and detection method Judgment and action

(1302)

High pressure (High-pressure switch 63H operated)

Abnormal if high-pressure switch 63H

operated (

) during compressor operation.

* 4.15 MPa

63H: High-pressure switch

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 fully open)

8 Clogged or broken pipe 9 Locked outdoor fan motor

0 Malfunction of outdoor fan

motor

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

defective inspection of outside temperature thermistor

(It detects lower temperature

than actual temperature.)

4 Disconnection or contact failure

of connector (63H) on outdoor controller board

5 Disconnection or contact failure

of 63H connection

6 Defective outdoor controller

board

7 Defective action of linear

expansion valve

8 Malfunction of fan driving circuit

1~6 Check indoor unit and repair defect.

7 Check if stop valve is fully open.

8 Check piping and repair defect. 9–2 Check outdoor unit and repair defect.

3 Check the inspected temperature of outside

temperature thermistor on LED display.

(SW2 on A-Control Service Tool : Refer

to "10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS".)

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 "10-6. HOW TO CHECK THE PARTS".

8 Replace outdoor controller board.

Case

(1102)

High discharging temperature

(1) Abnormal if discharge temperature

thermistor (TH32) exceeds 125: or 110 : continuously for 5 minutes. Abnormal if condenser/evaporator temperature thermistor (TH5) exceeds 40: during defrosting and discharge temperature thermistor (TH32) exceeds 110 :.

(2) Abnormal if discharge super heat

(Cooling: TH32−H5 / Heating: TH32−TH6) increases. All the conditions in A or B are detected simultaneously for 10 minutes continuously after 6 minutes past from compressor start-up (including the thermostat indication or recovery from defrosting). <Condition A>

• Heating mode

• When discharge super heat is less

than 70:.

• When the TH6 temp is more than the

value obtained by TH7−5:.

• When the condensing temp of TH5 is

less than 35:.

• During comp operation (Cooling and Heating)

• When discharge super heat is less than 80: in Cooling.

• When discharge super heat is less than 90: in Heating.

• When condensing temp of TH6 is more than −40:. (In Cooling only.)

1 Over-heated compressor

operation 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

1 Check intake super heat. Check leakage of refrigerant. Charge additional refrigerant.

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

displayed 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 "10-6. HOW TO CHECK THE PARTS".

Check code

OCH566A

Thermistors

Open detection Short detection

Symbol

Name TH3 TH6 TH7 TH8

−40: or below

−27: or below

−35: or below

90: or above 90: or above

90: or above 102: or above 170: or above

Thermistor <Liquid> Thermistor <2-phase pipe> Thermistor <Ambient> Thermistor <Heat sink> (100YHA)

TH8

Internal thermistor (VHA, 125/140YHA)

Abnormal points and detection method

Case

Judgment and action

(4230)

Temperature of heatsink

Abnormal if heatsink thermistor(TH8) detects temperature indicated below. SP100-140V·············79: SP100-140Y·············85:

1 The outdoor fan motor is

locked.

2 Failure of outdoor fan motor 3 Airflow 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

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 microprocessor. (Thermistor/TH8: Refer to "10-6. HOW TO CHECK THE PARTS".) (SW2 on A-Control Service Tool: Refer to "10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS".)

6 Replace outdoor power circuit board.

7 Replace outdoor controller circuit board.

(5104)

Open/short circuit of discharge temperature thermistor (TH32)

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

1 Disconnection or contact failure

of connector (TH32) on the outdoor controller circuit board

2 Defective thermistor

Defective outdoor controller circuit

board

1 Check connection of connector (TH32) on

the outdoor controller circuit board. Check breaking of the lead wire for thermistor (TH32). Refer to "10-9. TEST POINT DIAGRAM"

Check resistance value of thermistor (TH32) or temperature by microcomputer. (Thermistor TH32: Refer to "10-6. HOW TO CHECK THE PARTS".)

(SW2 on A-Control Service Tool: Refer

to "10-10. FUNC-TION OF SWITCHES, CONNECTORS AND JUMPERS".)

3 Replace outdoor controller board.

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

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

Abnormal if open or short is detected during compressor operation. Open detection of thermistors TH3 and TH6 is inoperative for 10 seconds to 10 minutes after compressor starting and 10 minutes after and during defrosting.

Note:

Check which unit has abnormality in its thermistor by switching the mode of SW2. (PAC-SK52ST) (Refer to "10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS".)

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

the outdoor controller circuit board. Check connection of connector (CN3) on the outdoor power circuit board. Check breaking of the lead wire for thermistor (TH3,TH6,TH7,TH8). Refer to "10-9. TEST POINT DIAGRAM".

Check resistance value of thermistor (TH3,TH6,TH7,TH8) or check temperature by mic rocomput er. (Thermistor/TH3,TH6,TH7,TH8: Refer to "10-6. HOW TO CHECK THE PARTS".) (SW2 on A-Control Service Tool: Refer to "10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS".)

3 Replace outdoor controller circuit board.

Note:

Emergency operation is available in case of abnormalities of TH3, TH6 and TH7. Refer to "10-8. EMERGENCY OPERATION".

1 Disconnection or contact failure

of connectors

Outdoor controller circuit board:

TH3,TH6/TH7

Outdoor power circuit board:

CN3

2 Defective thermistor

3 Defective outdoor controller

circuit board

(4250)

Power module

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

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

converse of compressor wiring connection

4 Defective compressor 5 Defective outdoor power circuit

board

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

compressor. Refer to "10-9. TEST POINT DIAGRAM (Outdoor power circuit board)".

4 Check compressor referring to "10-6. HOW

TO CHECK THE PARTS".

5 Replace outdoor power circuit board.

(4400)

Outdoor fan motor

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

• Less than 100 rpm detected continuously

for 15 seconds at 20: or more outside air temperature

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

1 Failure in the operation of the

DC fan motor

2 Failure in the outdoor circuit

controller board

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 remedy 1 above.)

Check code

OCH566A

Abnormal point and detection method Case Judgment and action

Check code

(4220)

Detailed

codes

To find out the details about U9 error, turn ON SW2-1, 2-2, 2-3, 2-4, 2-5, 2-6 when U9 error occurs. To find out the detail history (latest) about U9 error, turn ON SW2-1, 2-2, 2-6. For more detail, refer to "10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS".

Overvoltage error

• Increase in DC bus voltage to

VHA model: 400V YHA model: 760V

1 Abnormal increase in power source

voltage

2 Disconnection of compressor wiring

Defective outdoor power circuit board

Compressor has a ground fault.

1 Check the field facility for the power

supply.

2 Correct the wiring (U

.V.

W phase) to

compressor. Refer to "10-9. TEST POINT DIAGRAM (Outdoor power circuit board)".

3 Replace outdoor power circuit board.

4 Check compressor for electrical

insulation. Replace compressor.

Undervoltage error

• Instantaneous decrease in DC bus voltage to VHA model: 200V YHA model: 350V

Decrease in power source voltage,

instantaneous stop.

Disconnection or loose connection of CN52C on the outdoor power circuit board/controller circuit board (VHA)

Defective converter drive circuit of outdoor power circuit board

(VHA)

Defective 52C drive circuit in outdoor power circuit board (VHA)/ noise lter circuit board (YHA)

Disconnection or loose connection of rush current protect resistor RS (YHA)

Defective rush current protect resistor

(YHA)

Disconnection or loose connection of main smoothing capacitor CB(VHA), CB1, CB2 (SP125/140YHA)

Disconnection or loose connection of CN2 on the outdoor power circuit board /controller circuit board (VHA)

Power circuit failure on DC supply for 18V DC output on outdoor controller circuit board (VHA)

Check the eld facility for the power

supply.

Check CN52C wiring. (VHA)

Replace outdoor power circuit board.

(VHA)

Replace outdoor power circuit board. (VHA) Replace outdoor noise lter circuit board (YHA)

Check RS wiring. (YHA)

Replace RS. (YHA)

Check CB or CB1,CB2 wiring. (VHA, SP125/140YHA)

Check CN2 wiring.(VHA)

Replace outdoor controller circuit board.

(VHA)

Input current sensor error/ L1-phase open error

• Decrease in input current through 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.

L1-phase open (YHA)

Disconnection or loose connection between TB1 and outdoor noise lter circuit board

(YHA)

Disconnection or loose connection of CN5 on the outdoor power circuit board/CNCT on the outdoor noise lter board

(YHA)

Defective ACCT(AC current trans) on the outdoor noise lter circuit board (YHA)

Defective input current detection

circuit of outdoor power circuit board

Defective outdoor controller circuit board

Check the eld facility for the power

supply. (YHA)

Check the wiring between TB1 and

outdoor noise lter circuit board (YHA)

Check CN5/CNCT wiring. (YHA)

Replace outdoor noise lter circuit

board. (YHA)

Replace outdoor power circuit board.

Replace outdoor controller circuit board.

Abnormal power synchronous signal

• No input of power synchronous signal to power circuit board

• Power synchronous signal of 44 Hz or less, or 65 Hz or more is detected on power circuit board.

Distortion of power source voltage, Noise superimposition.

Disconnection or loose connection of earth wiring

Disconnection or loose connection of CN2 on the outdoor power circuit board /controller circuit board

Defective power synchrous signal circuit in outdoor controller circuit board

Defective power synchrous signal circuit in outdoor power circuit board

Check the eld facility for the power supply.

Check earth wiring.

Check CN2 wiring.

Replace outdoor controller circuit board.

Replace outdoor power circuit board.

Continue to the next page.

OCH566A

Abnormal points and detection method

Case

Judgment and action

Check code

(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·V·W phase) to

compressor.

Refer to "10-9. TEST POINT DIAGRAM

(Outdoor power circuit board)".

4 Check compressor. Refer to "10-6. HOW TO CHECK THE PARTS". 5 Replace outdoor power circuit board.

(5300)

Compressor current sensor error or input current error

• Abnormal if compressor current sensor detects −1.5A to 1.5A during compressor operation. (This error is ignored in case of test run mode.)

• Abnormal if the input current of 38A is detected or the input current of 34A or more is detected for 10 seconds. (VHA)

1 Disconnection of compressor

wiring

2 Defective circuit of current

sensor on outdoor power circuit board

1 Correct the wiring (U·V·W phase) to

compressor. Refer to "10-9. TEST POINT DIAGRAM (Outdoor power circuit board)".

2 Replace outdoor power circuit board.

(1300)

Low pressure

Abnormal if the following conditions are detected for 3 minutes continuously after compressor starts heating operation for 10 minutes. (However, this abnormal detection is disregarded when the compressor driving time exceeds 30 minutes after power is on.) TH7-TH3 [ 4: TH5-Indoor room temperature [ 2: Thermistor TH3:Liquid pipe temperature

TH5:Indoor cond./eva. Temperature TH7:Ambient temperature

Note:

In the case of UL error, the compressor may be damaged if the unit is restarted by remote controller. To avoid the damage, unit has the system that is not able to be restarted unless the power is turned OFF once .

1 Stop valve of outdoor unit is

closed during operation.

2 Leakage or shortage of

refrigerant

3 Malfunction of linear expansion

valve

1 Check stop valve.

2 Check intake super heat.

Check leakage of refrigerant. Charge additional refrigerant. 3 Check linear expansion valve.

Refer to "10-6. HOW TO CHECK THE PARTS".

(1504)

Overheat protection

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

Defective outdoor fan (fan motor) or short cycle of outdoor unit during cooling operation.

2 Defective liquid thermistor

(TH3)

Defective outdoor controller board

1 Check outdoor unit air passage.

23 Turn the power off and on again to check

the check code. If U4 is displayed, follow the U4 processing direction.

PFC error (Overvoltage/ Undervoltage/Overcurrent)

• PFC detected any of the fol-

lowings

a) Increase in DC bus voltage

to 420V

b) Decrease in PFC control

voltage to 12 V DC or lower

c) Increase in input current to

50A peak (For models equipped with single-phase PFC only)

Not applicable for SP100, 125, 140VHA and SP100, 125, 140YHA models.

Check for the switch settings for Model Select on the outdoor controller circuit board.

ACTM/IGBT error (Undervoltage)

• When Compressor is running, DC bus voltage stays at 310V or lower for consecutive 10 seconds.

(VHA models only)

Incorrect switch settings on the outdoor controller circuit board for model select

Defective outdoor power circuit

board

Defective outdoor controller

circuit board

Correction of a model select

Replace outdoor power circuit board.

Replace outdoor controller circuit board.

(4220)

Detailed

codes

From the previous page.

OCH566A

Check code

Abnormal points and detection method

Judgment and action

Case

(4210)

Compressor overcurrent interruption

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

1 Stop valve of outdoor unit is

closed.

Decrease of power supply voltage

3 Looseness, disconnection or

converse of compressor wiring connection

4 Defective fan of indoor/outdoor

units

Short cycle of indoor/outdoor units

6 Defective input circuit of

outdoor controller board

7 Defective compressor

1 Open stop valve.

2 Check facility of power supply. 3 Correct the wiring (U·V·W phase) to

compressor. Refer to "10-9. TEST POINT DIAGRAM (Outdoor power circuit board)".

4 Check indoor/outdoor fan.

5 Solve short cycle. 6 Replace outdoor controller circuit board. 7 Check compressor.

Refer to "10-6. HOW TO CHECK THE PARTS".

Note:

Before the replacement of the outdoor controller

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

(6831

6834)

E2 (E1: 6201) (E2: 6202)

Remote controller control board

1 Abnormal if data cannot be read

normally from the nonvolatile memory of the remote controller control board.

(Check code: E1) 2 Abnormal if the clock function of remote

controller cannot be operated normally.

(Check code: E2)

1 Defective remote controller 1 Replace remote controller.

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

1 Abnormal if main or sub remote controller

cannot receive any transmission normally from indoor unit of refrigerant address “0” for 3 minutes.

(Check code : E0) 2 Abnormal if sub remote controller could

not receive any signal for 2 minutes. (Check code: E0)

1 Abnormal if indoor controller board

cannot receive any data normally from remote controller board or from other indoor controller board for 3 minutes. (Check code: E4)

2 Indoor controller board cannot receive

any signal from remote controller for 2 minutes. (Check code: E4)

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 cablex 3 or more.)

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

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

If the cause of trouble is not in 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 “RC E3”or “ERC 00-66”is displayed,

noise may be causing abnormality.

Note: If the unit is not normal after replacing

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

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 Mis-wiring of remote controller 4 Defective transmitting receiving

circuit of remote controller

5 Defective transmitting receiving

circuit of indoor controller board of refrigerant address “0”

6 Noise has entered into the

transmission wire of remote controller.

(6832

6833)

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

1 Abnormal if remote controller could not

find blank of transmission path for 6 seconds and could not transmit.

(Check code: E3) 2 Remote controller receives transmitted

data at the same time and compares the received and transmitted data. Abnormal if these data are judged to be different 30 continuous times. (Check code: E3)

1 Abnormal if indoor controller board could

not find blank of transmission path.

(Check code: E5) 2 Indoor controller board receives

transmitted data at the same time and compares the received and transmitted data. Abnormal if these data are judged to be different 30 continuous times. (Check code: E5)

1 Set a remote controller to main, and the

other to sub.

2 Connect remote controller with only one

indoor unit.

3 Change the address to a separate setting. 4–6 Diagnose remote controller.

a) When “RC OK” is displayed, remote

controllers 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

displayed, noise may be causing abnormality.

1 2 remote controllers are set as

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

2 Remote controller is connected

with 2 indoor units or more.

3 Repetition of refrigerant

address

4 Defective transmitting receiving

circuit of remote controller

5 Defective transmitting receiving

circuit of indoor controller board

6 Noise has entered into

transmission wire of remote

controller.

OCH566A

Check code

Abnormal points and detection method

Judgment and action

(6841)

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 three minutes.

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/

outdoor unit connecting wire.

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.

Case

(0403)

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.

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

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.

Serial communication error

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

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

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.

(6840)

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

(1) Abnormal if outdoor controller circuit

board could not receive anything normally for 3 minutes.

1 Contact failure of indoor/

outdoor 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 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.

(1110)

1 Slight temperature difference

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

• Shortage of refrigerant

• Disconnected holder of pipe <liquid or condenser/ evaporator> thermistor

• Defective refrigerant circuit

2 Converse connection of

extension pipe (on plural units connection)

3 Converse wiring of indoor/

outdoor unit connecting wire (on plural units connection)

4 Defective detection of indoor

room temperature and pipe <condenser/evaporator> temperature thermistor

5 Stop valve is not opened

completely.

Pipe temperature

<Cooling mode> Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes later of compressor start and 6 minutes later of the liquid or condenser/ evaporator pipe is out of cooling range. Note 1: It takes at least 9 min. to detect. Note 2: Abnormality P8 is not detected in

drying mode.

Cooling range : Indoor pipe temperature

(TH2 or TH5)−intake temperature (TH1) [ −3°C

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°C [ (Condenser/

Evaporator temperature(TH5)− intake temperature(TH1))

1–4 Check pipe <liquid or condenser/

evaporator> temperature with room temperature display on remote controller and outdoor controller circuit board.

Pipe <liquid or condenser/evaporator> temperature display is indicated by setting SW2 of outdoor controller circuit board as follows.

23 Check converse connection of extension

pipe or converse wiring of indoor/outdoor unit connecting wire.

Conduct temperature check with outdoor controller circuit board after connecting ‘A-Control Service Tool(PAC-SK52ST)’.

(

)

1 2 3 4 5 6

ON OFF

1 2 3 4 5 6

ON OFF

1 234 5 6

ON OFF

1 2 3 4 5 6

ON OFF

A-Control Service Tool SW2 setting

Temperature display of indoor liquid pipe Indoor 1

Temperature display of indoor liquid pipe Indoor 2

Temperature display of indoor condenser/ evaporator pipe Indoor 1

Temperature display of indoor condenser/ evaporator pipe Indoor 2

OCH566A

Abnormal points and detection method

Judgment and action

Case

Check code

Abnormal points and detection method

Case Judgment and action

(6600)

Duplicate address 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

transmission signal and signal was transformed.

Search the unit with same address as abnormality occurred. If the same address is found, turn off the power supply of outdoor unit, 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 wave form or noise on transmission wire.

(6602)

Hardware 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.

1 Error is detected if wave

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

2 Defective transmitting receiving

circuit of transmission processor

3 Transmission data is changed

by the noise on transmission.

1 If the work of transmission wire is done with

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

2 Check transmission wave form or noise on

transmission wire.

(6603)

BUS BUSY

1. Overtime error by signal collision damage

Abnormal if transmitting is not possible

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

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

Note: The address and attribute displayed

at remote controller indicate the controller that detected abnormality.

1 Transmission processor could

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

2 Transmission quantity has

increased and transmission is not possible because there was wiring mistake of terminal block for transmission wire (TB3) and terminal block for central control (TB7) in outdoor unit.

Transmission is mixed with others and occupation rate on transmission wire rose because of defective repeater (a function to connector or disconnect transmission of control and central control system) of outdoor unit, then abnormality is detected.

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 wave form or noise on

transmission wire.

<M-NET communication error>

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

(1514)

Abnormal refrigerant circuit

During Cooling, Dry, or Auto Cooling

operation, when the following are regarded as failures when detected for one second.

a) The compressor continues to run for 30

or more seconds.

b) The liquid pipe temperature or the

condense/evaporator temperature is 75°C or more.

These detected errors will not be cancelled until the power source is reset.

1 Abnormal operation of 4-way

valve

2 Disconnection of or leakage in

refrigerant pipes

3 Air into refrigerant piping 4 Abnormal operation (no rotation)

of indoor fan

· Defective fan motor.

· Defective indoor control board.

5 Defective refrigerant circuit

(clogging)

1 When this error occurs, be sure to

replace the 4-way valve.

2 Check refrigerant pipes for disconnection or

leakage.

3 After the recovery of refrigerant, vacuum

dry the whole refrigerant circuit.

4 Refer to "10-6. HOW TO CHECK THE

PARTS".

5 Check refrigerant circuit for operation.

To avoid entry of moisture or air into refrigerant circuit which could cause abnormal high pressure, purge air in refrigerant circuit or replace refrigerant.

Check code

OCH566A

Continued to the next page.

(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 processor

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 hardware.

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.

Abnormal points and detection method

Case Judgment and action

(6607)

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 is indicate the controller that did not 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......200m

•

Remote controller line

...(12m)

3 Extinction of transmission wire

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

Type.....

With shield wire-

CVVS, CPEVS

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

Diameter....1.25mm² or more

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-

generated controller

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

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

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-

generated address.

3 Check disconnection or looseness of

abnormality-generated or abnormalitydetected 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 the cause of trouble is in 1-5 above, repair the defective, then 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 the cause of trouble is not in 1–5 above in

single refrigerant system (one outdoor unit), controller of displayed address or attribute is defective.

• f the cause of trouble is not in 1–5 above

in different refrigerant system (two 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 controller board of displayed address or attribute. If the unit does not return normally, multicontroller board of outdoor unit may be defective (repeater circuit). Replace multi-controller board one by one to check if the unit returns normally.

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

1 During group operation with

indoor unit of multi- refrigerant system, if remote controller transmit to indoor unit while outdoor unit power supply of one refrigerant system is put off or within two 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

Check code

OCH566A

Abnormal points and detection method

Case Judgment and action

(6607)

5. If displayed address or attribute is FRESH MASTER, indoor unit detects abnormality when indoor unit transmitted to FRESH MASTER and there was no reply (ACK).

1 During sequential operation

of indoor unit and FRESH MASTER of other refrigerant system, if indoor unit transmits 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

6. If displayed address or attribute is LOSSNAY, indoor unit detects abnormality when indoor unit transmitted to LOSSNAY and there was no reply (ACK).

1 If the power supply of

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

2 During sequential operation

of indoor unit and LOSSNAY of other refrigerant system, if indoor unit transmits 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. When 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 transmitted because the address of FRESH MASTER and LOSSNAY are changed after sequential operation of FRESH MASTER and LOSSNAY by remote controller.

From the previous page.

4. If displayed address or attribute is

remote controller, indoor unit detects abnormality when indoor unit transmitted to remote controller and there was no reply (ACK).

1 During group operation with

indoor unit of multi- refrigerant system, if indoor unit transmit to remote controller while outdoor unit power supply of one refrigerant system is turned off or within two 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

Check code

OCH566A

10-5. TROUBLESHOOTING OF PROBLEMS

Phenomena

Factor Countermeasure

1. Remote controller display does not work.

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.

1 After cancelling to select function from the remote

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

1 Normal operation

1 At longest 2 minutes after the power supply “PLEASE

WAIT” is displayed to start up.

2 Communication error between the remote controller

and indoor unit

3 Communication error between the indoor and out-

door unit

4 Outdoor unit protection device connector is open.

112 V DC is not supplied to remote controller.

(Power supply display is not indicated on LCD.) 212 to 15 V DC is supplied to remote controller, how-

ever, no display is indicated.

• “PLEASE WAIT” is not displayed.

• “PLEASE WAIT” is displayed.

1 Check LED2 on indoor controller board.

(1) When LED2 is lit.

Check the remote controller wiring for breaking or contact failure.

(2) When LED2 is blinking.

Check short circuit of remote controller wiring.

(3) When LED2 is not lit.

Refer to Phenomena No.3 below.

2 Check the following.

• Failure of remote controller if “PLEASE

WAIT” is not displayed

• Refer to Phenomena No.2 below if

“PLEASE WAIT” is displayed.

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

utes at most, in case of indoor/outdoor unit communication error. Check LED3 on indoor controller board. (1) When LED3 is not blinking.

Check indoor/outdoor connecting wire for miswiring.(Converse wiring of S1 and S2, or break of S3 wiring.)

(2) When LED3 is blinking.

Indoor/outdoor connecting wire is normal.

4 Check LED display on outdoor controller

circuit board. Refer to

"10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS".

Check protection device connector (63L and 63H) for contact failure. Refer to "10-9. TEST POINT DIAGRAM".

Abnormal points and detection method

Case Judgment and action

(6608)

M-NET NO RESPONSE

Abnormal if a message was transmitted and there was 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).

1 Transmitting condition repeats

fault because of noise and the like.

2 Extension of transmission wire

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

• Maximum distance......200m

•

Remote controller line

...(12m)

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.....1.25mm² or more

4 Accidental malfunction of

abnormality-generated controller

1 Check transmission wave form 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.

Check code

OCH566A

Phenomena

Factor

Countermeasure

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

1 Linear expansion valve fault

Opening cannot be adjusted well due to linear expansion valve fault.

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

1• Discharging temperature and indoor heat

exchanger temperature does not rise. Inspect the failure by checking discharging pressure.

• Replace linear expansion valve.

2• If refrigerant leaks, discharging

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

• Check pipe connections for gas leakage.

3 Check the insulation. 4 Open suction grill and check the filter.

Clean the filter by removing dirt or dust on it.

5• If the filter is clogged, indoor pipe

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

• Clean the heat exchanger.

6 Remove the blockage. 7

Check refrigerant system during operation.

8. 1 For 3 minutes after temperature

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

2 For 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.)

12 Normal operation

(For protection of compressor)

12 Normal operation

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.

1 The pair number settings of the wireless remote

controller and indoor controller board are mismatched.

1 Check the pair number settings.

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

1 No operation for 2 minutes at most after the power

supply ON

2 Local 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.

3 Refer to

Phenomena No.2 on previous page.

1 Normal operation

2 Normal operation

Check

Phenomena

No.2 on previous page.

6. Remote controller display works normally and the unit performs cooling operation, however, the capacity cannot be fully obtained. (The air does not cool well.)

1 Refrigerant shortage 2 Filter clogging 3 Heat exchanger clogging 4 Air duct short cycle

1• If refrigerant leaks, discharging

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

• Check pipe connections for gas leakage.

2 Open suction grill and check the filter.

Clean the filter by removing dirt or dust on it.

3• If the filter is clogged, indoor pipe

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

• Clean the heat exchanger.

4 Remove the blockage.

OCH566A

How long is “PLEASE WAIT”

kept being displayed on the

remote controller?

6 minutes or more

2 minutes or less

2 to 6 minutes

YES

Are any check codes

displayed on the

remote controller?

Are any check codes

displayed on the LED?

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

Check the display time of “PLEASE WAIT”

after turning on the main power.

•

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

diagnosis after turning

on the main power.

• Normal.

The start-up diagnosis will

be over in around 2 minutes.

• Mis-wiring of indoor/

outdoor connecting wire

• Breaking of indoor/

outdoor connecting wire (S3)

• Defective indoor

controller board

• Defective outdoor

controller circuit board

• Refer to “10-4. SELF-

DIAGNOSIS ACTION

TABLE” in order to

solve the trouble.

• In case of communication

errors, the display of remote controller may not match the LED display of the outdoor unit.

• Defective indoor

controller board

• Defective remote

controller

Check the LED display of the outdoor controller circuit board.

Diagnosis flow Cause

Inspection method and troubleshooting

OCH566A

198 to 264 V AC?

12 to 16 V DC?

YES

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

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

Check the voltage of indoor controller board (CN2D).

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

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

•

Troubles concerning

power supply

• Check the power wiring

to the outdoor unit.

• Check the breaker.

• Bad wiring of the

outdoor controller board

•

The fuses on the outdoor controller circuit board are blown.

• Check the wiring of the

outdoor unit.

• Check if the wiring is bad.

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

• Bad wiring of the

outdoor controller board

•

The fuses on the outdoor controller circuit board are blown.

• Check if miswiring, breaking

or poor contact is causing this problem. Indoor/outdoor connecting wire is polarized 3-core type. Connect the indoor unit and the outdoor unit by wiring each pair of

S1, S2 and S3 on the both

side of indoor/outdoor terminal blocks.

• Defective indoor

power board

• Replace the indoor

power board.

• Defective indoor

controller board

• Replace the indoor

controller board.

• Miswiring, breaking

or poor connection of indoor/outdoor connecting wire

•

Check if there is miswiring

or breaking of wire.

Symptoms: Nothing is displayed on the remote controller. 1

Diagnosis flow Cause

Inspection method and troubleshooting

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

OCH566A

198 to 264 V AC?

Are there looseness or

disconnection of the indoor/

outdoor connecting wire?

Is anything displayed?

17 to 28 V DC?

Is “E8” displayed?

Can all the indoor

unit be operated?

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

YES

Not lighting.

Blinking.

YES

Not displayed.

Displayed.

YES

Check the voltage between S1 and

S2 on the terminal block (TB4)

of the

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

outdoor unit.

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

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

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

Can the unit be restarted?

•

Breaking or poor contact of the indoor/outdoor connecting wire

• Fix the breaking or poor

contact of the indoor/outdoor

connecting wire.

• Defective outdoor

controller circuit board

• Replace the outdoor

controller circuit board.

• Normal

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

• Set the refrigerant

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

• Defective indoor

power board

• Replace the indoor

power board.

• Defective outdoor

power circuit board

• Replace the outdoor

power circuit board.

• Defective indoor

controller board

•

Replace the indoor controller

board of the indoor unit which

does not operate.

• Defective outdoor

controller circuit board

• Replace the outdoor

controller circuit board.

• Influence of

electromagnetic noise

• Not abnormal.

There may be the influence

of electromagnetic noise.

Check the transmission wire

and get rid of the causes.

Symptoms: Nothing is displayed on the remote controller. 2

Diagnosis flow Cause

Inspection method and troubleshooting

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

Check the status of the indoor controller board LED3 display.

Is the refrigerant address “0”?

YES

Is “EA” or “Eb” displayed?

OCH566A

10 to 16 V DC?

YES

Lighting

Blinking

Lighting

Blinking

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

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

• Defective

remote controller

• Replace the

remote controller.

• Breaking or poor

contact of the remote controller wire

• Check if there is breaking or poor contact of the

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

If it is not between DC 10V and DC16V, the indoor controller board must be defective.

• The remote controller

wire short-circuits

• Check if the remote

controller wire is short-circuited.

• Defective indoor

controller board

• Replace the indoor

controller board.

Diagnosis flow Cause

Inspection method and

troubleshooting

Symptoms: Nothing is displayed on the remote controller. 3

LED display of the indoor

controller board LED1 : LED2 : or LED3 : —

Check the status of the LED2.

OCH566A

The operating display of remote

controller does not come on.

Phone Calls From Customers How to Respond Note

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

supplied. 2 Unit cannot be restarted for a while after it has stopped.

2 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 or thermostat. 3 Error code appears and blinks

on the display of remote controller.

Refer to “10-4. SELFDIAGNOSIS 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.

3 Check code will be displayed if any protection

devices of the air conditioner are actuated.

What is check code?

“PLEASE WAIT” is displayed

on the screen.

1 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. 2

“FILTER” is displayed on the

screen.

2 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. 3

“STANDBY” is displayed on the

screen.

3 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. 4

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

4 The outdoor unit gets frosted when the outside temperature is low and the humidity is high. “DEFROSTING” 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 blower is stopped. The up/down vane will be automatically set to horizontal blow in order to prevent cold air from directly blowing out to human body. The display will turn into “STANDBY” when DEFROST operation ends.

Unit does not operate at all.

Remote controller

• Before repair

Frequent calling from customers

OCH566A

Phone Calls From Customers How to Respond Note

1 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.

2 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.

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

A gas escaping sound is heard

sometimes.

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

A cracking sound is heard

sometimes.

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

A buzzing sound is heard

sometimes.

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

A ticking sound is heard from

the outdoor unit sometimes.

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

A sound, similar to water

flowing, is heard from the unit.

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

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

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

2 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.

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

Sound comes out from the air conditioner.

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

1 This is not a malfunction. During the DRY operation, the blower’s ON/OFF is controlled by the microcomputer to prevent overcooling and to ensure efficient dehumidification. The fan speed cannot be set by the remote controller during DRY operation.

Something is wrong with the blower…..

The room cannot be cooled or heated sufficiently.

OCH566A

Air blows out for a while after

HEAT operation is stopped.

Phone Calls From Customers How to Respond Note

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

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

“STANDBY” will be displayed on the remote controller in case of 1 and 2. “DEFROSTING” will be displayed on the screen in case of 3.

The airflow direction is changed

during COOL operation.

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

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

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

1) At the beginning of the HEAT operation

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

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

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

3 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 does not have that function, “NOT AVAILABLE” will be displayed on the remote controller when “AIR DIRECTION” or “LOUVER” button is pressed.

Something is wrong with the blower…..

Something is wrong with the airflow direction….

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

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

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

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

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

There might be a case that “CENTRALLY CONTROLLED INDICATOR

” will not be

displayed.

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

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

OCH566A

Phone Calls From Customers How to Respond Note

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

A white mist is expelled from the indoor unit.

COOL: when pipes or piping joints are cooled, they get sweated and water drips down. HEAT: water drips down from the heat exchanger.

Note: Make use of optional parts “Drain Socket” and

“Drain pan” if these water needs to be collected and drained out for once.

Water or moisture is expelled from the outdoor unit.

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

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

OCH566A

1 2 3 4 5 6

Gray

Orange Red Yellow Black

Parts name

Check points

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

Thermistor (TH3) <Liquid>

Thermistor (TH6) <2-Phase Pipe>

Thermistor (TH7) <Ambient>

Thermistor (TH8) <Heat Sink>

Thermistor (TH32) <Comp.Surface>

Normal

160 to 410 k"

4.3 to 9.6 k"

39 to 105 k"

TH32

TH3 TH6 TH7 TH8

Abnormal

Open or short

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

)

Solenoid Valve Coil <Four-Way Valve> (21S4)

Motor for Compressor (MC)

Linear Expansion Valve (LEV-A)

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

Normal

Gray - Black Gray - Red

Gray - Yellow

Gray - Orange

Abnormal

46 ± 3 "

Open or short

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

Normal

1450 ± 150 "

Abnormal

Open or short

Solenoid Valve Coil <Bypass valve> (SV) For SP125, 140

Refer to the next page.

Fan Motor (MF1,MF2)

SP125/140V

SP100V

0.88 "

SP100Y

1.41 "

0.53 "

SP125/140Y

1.02 "

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

)

Normal Abnormal

Open or short

Normal

1500 ± 150 "

Abnormal

Open or short

10-6. HOW TO CHECK THE PARTS

PUHZ-SP100VHA.UK PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK PUHZ-SP100YHA.UK

PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

OCH566A

Notes

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

· Do not pull out the connector (CNF1, 2) for the motor with the power supply on. (It causes trouble of the outdoor controller circuit

board and fan motor.)

Self check Symptom : The outdoor fan cannot rotate.

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

Fail

Wiring contact check

Contact of fan motor connector (CNF1, 2)

Fuse check

Check the fuse (F5) on outdoor controller board.

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

Measure the voltage in the outdoor controller circuit

board.

TEST POINT

1 : VDC (between 1 (+) and 4 (−) of the fan connector): VDC 250–330 V DC

TEST POINT 2 : VCC (between 5 (+) and 4 (−) of the fan connector): VCC 15 V DC

Recover wiring.

Replace outdoor controller board.

Replace the fan motor.

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

Replace outdoor

controller board.

Replace the fan motor.

Is the voltage normal?

Is there no contact failure?

Yes

Did the fuse blow?

Yes

Check the operation of fan. END

Yes

Check the operation. END

OCH566A

10-7. HOW TO CHECK THE COMPONENTS

Low temperature thermistors

• Thermistor <Liquid> (TH3)

• Thermistor <2-Phase Pipe> (TH6)

• Thermistor <Ambient> (TH7)

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

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

30 : 4.3 k" 40 : 3.0 k"

Thermistor R0 = 15 k" ± 3%

B constant = 3480 ± 2%

t =15exp{3480(

273+t – 273

)}

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

t =17exp{4150(

273+t – 323

)}

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

Rt =7.465exp{4057(

273+t – 393

)}

Medium temperature thermistor

• Thermistor <Heat Sink> (TH8) : SP100YHA

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

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

High temperature thermistor

• Thermistor <Comp. Surface> (TH32)

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

Resistance (k")

200

150

100

25 50 75 100 125

Temperature (:)

Resistance (k")

500

400

300

200

100

50 75 100 120

Temperature (:)

Resistance (k")

OCH566A

(2) Linear expansion valve operation

Open

Extra tightening (about 32 pulse)

Pulse number

500 pulse Opening a valve all the way

Valve position (capacity)

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 phases 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.

· Sound can be detected by placing the ear against the screw

driver handle while putting the screw driver to the linear expan-

sion valve.

LEV

Gray

Orange

Red

Yellow

Black

Connector LEV-A

12 V DC

Outdoor controller board

Drive circuit

Linear expansion valve

(1) Operation summary of the linear expansion valve

• Linear expansion valve open/close 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>

ON OFF OFF OFF

ON OFF OFF

OFF

ON OFF OFF

OFF

ON ON

OFF

Output

(Phase)

Output

[2 [3

2 3 4

5 6 7 8

OFF OFF

OFF

OFF OFF

ON ON

OFF OFF OFF

ON OFF OFF

OCH566A

Main body

Lead wire

Stopper

Coil

(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.

Be sure to attach the stopper.

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 stop-

per to main body. (At this time, be careful that stress is not added to lead wire and main body is not wound by lead wire.) If the stopper is not firmly attached to main body, coil may be detached

from the main body and that can cause defective operation of lin-

ear 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.

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.

OCH566A

10-8. EMERGENCY OPERATION

(1)

When the check 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) on indoor controller board to ON and short-circuiting the connector (CN31) on outdoor controller board.

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

1 Make sure that there is no abnormality in outdoor unit other than the above abnormalities. (Emergency operation will not

be available when check code other than the above are indicated.)

2 For emergency operation, it is necessary to set the emergency operation switch (SWE) on indoor controller board. Refer

to the electrical wiring diagram of indoor unit for how to set the indoor unit.

3 During emergency operation, the air-conditioner will continuously be operated by supplying power and stopping it: It can

not be turned on or off by remote control, and temperature control is not possible.

4 Do not perform emergency heating operation for an extended period of time: If the outdoor unit starts defrosting during

this period, cold air will blow out from the indoor unit.

5 Do not perform emergency cooling operation for more than 10 hours: Neglecting this could result in freezing the heat

exchanger in indoor unit.

(3) Emergency operation procedure

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

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

SW4

1 2 Cooling

Heating

OFF

CN31

Shorting pins

(4) Releasing emergency operation

1 Turn the main power supply off. 2 Set the emergency operation switch (SWE) on indoor controller board to OFF. 3 Set the shorting pins of emergency operation connector (CN31) on outdoor controller

board to OFF.

4 Set SW4-2 on outdoor controller board as shown in the right.

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

SW4

1 2 Cooling

Heating

Inspected content Open/short of pipe thermistor (TH3/TH6)

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

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

Communication error other than outdoor unit

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

Check code

E0 ~ E7

lWhen following abnormalities occur, emergency operation will be available.

OCH566A

(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 data

Intake temperature (TH1) Indoor liquid pipe temperature (TH2) Indoor 2-phase pipe temperature (TH5) Set temperature Outdoor liquid pipe temperature (TH3) Outdoor 2-phase pipe temperature (TH6) Outdoor air temperature (TH7)

Temperature difference code (room temperature−set temperature)(Tj)

Discharge superheat (SHd) Sub-cool (SC)

Operation mode

COOL

27:

5: 25: 45: 50: 35:

30:

HEAT

20.5: 45: 50: 22:

5: 5: 5:

30:

(*1) (*1) (*1)

(*2) (*2)

Remarks

*1 If the thermistor temperature data is normal (not open/short), that data is loaded into the control as valid data. When the unit enters emergency operation and TH values are mismatched, set the thermistors to open/short. And the unit runs emergency operation with the values listed above. *2 If one thermistor is set to open/short, the value of SHd/SC will be different from the list above. [Example] When liquid temperature thermistor (TH3) has an open or short circuit.

COOL

45:

5: 5:

HEAT

50: 45:

Thermistor

TH3

TH6

TH5 TH2

Regard normal figure as effective data.

Degree of subcooling (SC) Cooling = TH6−TH3 = Ta−45

Heating = TH5−TH2 = 50−45 = 5:

OCH566A

<CAUTION> TEST POINT 1 is high voltage.

PUHZ-SP100VHA.UK PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK PUHZ-SP100YHA.UK

PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

10-9. TEST POINT DIAGRAM Outdoor controller circuit board

CNS

S1-S2: 230 V AC

CNAC

2 to 4: Power supply for outdoor controller circuit board (230 V AC) 1 to 3: Power supply for indoor and outdoor unit connection wire (230 V AC)

21S4

4-way valve

CN4

Transmission to outdoor power circuit board (CN4)

CN51

External signal output

• Compressor operating signal

• Abnormal signal

CN2

Connect to the outdoor power circuit board (CN2) 1–5: Reception from

power circuit board

2–5: Zero cross signal (0–5 V DC)

3,4: Not used 6–5: 16 V DC 7–5: 16 V DC

CN52C

(Connect to the noise filter circuit board (CN52C)) (VHA)

SV1/CH

Crankcase heater (SP125/140 only)

SV2

Bypass valve (SP125/140 only)

Communication power supply D71 Voltage 24 V DC

CNF1, CNF2 Connect to the fan motor

1–4: 250–330 V DC 5–4: 15 V DC 6–4: 0–6.5 V DC 7–4: 15 V DC(When stopped)

7.5 V DC(When operated) (0–15 V pulse)

CNDC

280 V DC (1+, 3−) (Outdoor power circuit board for VHA) (Noise filter circuit board for YHA)

+ −

63H

High Pressure Switch

SW4

Test operation

SW6

Model select

SW5

Function switch

SW1

Forced defrost, detect history record reset, refrigerant address

TH3

Thermistor <Liquid>

TH7/6

Thermistor <Ambient/ 2-phase pipe>

VFG

(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): 0 V DC (when stopped),

1–6.5 V (when operated)

LEV-A

Linear Expansion Valve

SWP

Pump down

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)

TH32

Thermistor <Comp. Surface>

CNDM

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

SW7

Demand control setting

OCH566A

LI1, LI2, LI3, NI

POWER SUPPLY

LI1-LI2/LI-LI3/LI3-LI1 : 400 V AC input LI1-NI/LI2-NI/LI3-NI : 230 V AC input (Connect to the terminal block (TB1))

GD1

Connect to the earth

CNAC2 230 V AC

(Connect to the outdoor controller circuit board (CNAC))

CNDC

(Connect to the outdoor controller circuit board (CNDC))

LO1, LO2, LO3

POWER SUPPLY

LO1-LO2/LO2-LO3/LO3-LO1: 400 V AC OUTPUT (Connect to the outdoor power circuit board (TB-L1, TB-L2, TB-L3))

CNCT

Primary current

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

CNL

Connect to the ACL4

GD3

Connect to the earth

Outdoor noise filter circuit board

PUHZ-SP100YHA.UK

OCH566A

Outdoor noise filter circuit board

PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

LI1, LI2, LI3, NI

POWER SUPPLY

LI1-LI2/LI-LI3/LI3-LI1: 400 V AC input LI1-NI/LI2-NI/LI3-NI: 230 V AC input (Connect to the terminal block (TB1))

GD1

Connect to the earth

CNAC1, CNAC2 230 V AC

(Connect to the outdoor controller circuit board (CNAC))

CNDC

(Connect to the outdoor controller circuit board (CNDC))

CNL

Connect to the ACL4

GD2

Connect to the earth

LO1, LO2, LO3

POWER SUPPLY

LO1-LO2/LO2-LO3/LO3-LO1: 400 V AC OUTPUT

Connect to the outdoor power circuit board (TB1-L1, L2, L3)

CNCT

Primary current

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

OCH566A

S R

W V U L2 P N1 L1

Brief Check of POWER MODULE

Usually, they are in a state of being short-circuited if they are broken. Measure the resistance in the following points (connectors, etc.). If they are short-circuited, it means that they are broken.

1. Check of POWER MODULE 1 Check of DIODE circuit

R - L1 , S - L1 , R - N1 , S - N1 2 Check of IGBT circuit L2 - N1 3 Check of INVERTER circuit P - U , P - V , P - W , N1 - U , N1 - V , N1 - W

Note: The marks R , S , L1 , L2 , P , N1 , U , V and W

shown in the diagram are not actually printed on the board.

Outdoor power circuit board

PUHZ-SP100VHA.UK PUHZ-SP125VHA.UK PUHZ-SP140VHA.UK

CNAC1, CNAC2

230 V AC Connect to the outdoor controller circuit board (CNAC)

NI, LI

Voltage of 230 V AC is input (Connect to the terminal block (TB1))

EI, E4

Connect to the earth

DCL1, DCL2

Connect to DCL

Connect to the smoothing capacitor CB +

U/V/W

Connect to the compressor (MC) Voltage among phases: 10–180 V AC

CNDC

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

E2, E3

Connect to the earth

CN52C

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

CN2 Connect to the outdoor controller circuit board (CN2)

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

Connect to the smoothing capacitor CB −

CN4 Connect to the outdoor controller circuit board (CN4)

OCH566A

Brief Check of POWER MODULE

1. Check of DIODE MODULE

L1 - P1 , L2 - P1 , L3 - P1 , L1 - N1 , L2 - N1 , L3 - N1

2. Check of DIP-IPM 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.

Outdoor power circuit board

PUHZ-SP100YHA.UK

CN5

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

CN4

Connect to the outdoor controller circuit board (CN4)

CN2 Connect to the outdoor controller circuit board (CN2)

1–5: Power circuit board

→ Transmitting

signal to the controller board (0–5 V DC)

2–5: Zero cross signal (0–5 V DC) 3–4: Not used 6–5: 16 V DC 7–5: 16 V DC

[ 5 : – 1, 2, 6, 7 : + ]

TB-U, TB-V, TB-W

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

TB-P3

Connect to the DCL

Diode module

U P2VW

L3 N1L1P1 L2

DIP-IPM

TAB connector on X52CA

Connect to the RS resistor

CN6

Thermistor <Heat sink> (TH8)

TB-L1, TB-L2, TB-L3 Connect to the outdoor noise filter circuit board (LO1, LO2, LO3) 400 V AC

L3OUT-L3IN

Lead connect

TB-P1

Connect to the DCL

OCH566A

Outdoor power circuit board

PUHZ-SP125YHA.UK PUHZ-SP140YHA.UK

N2N1P2

Brief Check of POWER MODULE

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.

TB-U, TB-V, TB-W

Connect to the compressor (MC) Voltage among phases: 10

–400 V AC

TB-L1, TB-L2, TB-L3

Connect to the outdoor noise filter circuit board (LO1, LO2, LO3) 400 V AC

TB-N1

Connect to the smoothing capacitor CB2

–

POWER MODULE

TB-C1

Connect to the smoothing capacitor CB1

– , CB2 +

TB-P2

Connect to the smoothing capacitor CB1

+ , reactor(DCL)

CN5

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

CN4

Connect to the outdoor controller circuit board (CN4)

CN2 Connect to the outdoor controller circuit board (CN2)

1–5: Power circuit board

→ Transmitting

signal to the controller board (0–5 V DC)

2–5: Zero cross signal (0–5 V DC) 3–4: Not used 6–5: 16 V DC 7–5: 16 V DC

TAB connecter on X52A Connect to the RS resistor

[ 5 : – 1, 2, 6, 7 : + ]

OCH566A

The black square (■) indicates a switch position.

Switch

Type

switch

Dip

switch

SW1

1 2

No.

Function Effective timing

Action by the switch operation

Compulsory defrosting

Start Normal

When compressor is working in heating operation.

Abnormal history clear

When power supply ON

Clear Normal off or operating

SW4

Test run Operating OFF

Under suspension

Test run mode setting Heating Cooling

ON OFF

1 2 3 4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6

Refrigerant address setting

0 1 2 3

1 2 3

4 5 6 7

4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6

1 2 3

8 9 10 11

4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6

1 2 3

12 13 14 15

4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6ON1 2 3 4 5 6

*1. Compulsory defrosting should be done as follows.

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

• Heat mode setting

• 10 minutes have passed since compressor started operating or previous compulsory defrosting finished.

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

• Compulsory defrosting will finish if certain conditions are satisfied.

*2. Compulsory defrosting 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.

10-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS

(1) Function of switches

*3. ‘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 not all units have DIP SW.

Please refer to the indoor unit installation manual.

*4. SW7-1,2 are used for demand control. SW7-1,2 are effective only at the demand control.

(Refer to the next page : Special function (b))

*5. Please do not use SW7-3 to 5 ordinarily. Trouble might be caused by the usage condition.

1 2

3,4,5

3 4 5 6 1 2 3 1 2

3,4

ON OFF

No.

Function Effective timing

Action by the switch operation

No function

Power failure

automatic recovery *3

No function

model select

Max Hz setting (cooling) Max Hz setting (heating)

No function

Defrost Hz setting

No function No function No function No function

Function switch

No function

Pump down

Switch

SW5

SW7

Dip

switch

SW8

SW9

Push

switch

SWP

Type of

Switch

—

Auto recovery

—

Max Hz(cooling)

0.8

Max Hz(heating)

0.8

—

For high humidity

— — — —

Valid

—

Start

—

No auto recovery

—

Refer to next page.

Normal Normal

—

Normal

— — — —

Normal

—

Normal

—

When power supply ON

—

Always

Always Always

—

Always

— — — —

Always

—

Under suspension

Setting of demand control

SW7-1 SW7-2

OFF

0% (Operation stop)

75%

50%

OFF

OFF OFF

Power consumption (Demand switch ON)

OCH566A

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. * The performance depends on the load of conditioned outdoor temperature.

How to wire

1) Make the circuit as shown above with Adaptor 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 at field to the between Orange and Red (1 and 3) of the Adaptor 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.

(2) Function of connectors and switches

CN31

Types

Connector

Switch

Function

Effective timing

Connector

SW6

SW5-6

SW6-1

SW6-2

SW6-3

SW6-4

SW6-5

SW6-6

SW6-7

SW6-8

SW5-6

Start

Short Open

Action by open/short operation

Model select

Emergency operation

When power supply ON

Normal

The black square (■) indicates a switch position.

1 2 3 4 5 6 7 8

OFF

SP100VHA

MODEL

SW6 SW5-6

OFF

1 2 3 4 5 6

1 2 3 4 5 6 7 8

OFF

SP125VHA

OFF

1 2 3 4 5 6

1 2 3 4 5 6 7 8

OFF

SP140VHA

OFF

1 2 3 4 5 6

1 2 3 4 5 6 7 8

OFF

SP100YHA

OFF

1 2 3 4 5 6

1 2 3 4 5 6 7 8

OFF

SP125YHA

OFF

1 2 3 4 5 6

1 2 3 4 5 6 7 8

OFF

SP140YHA

OFF

1 2 3 4 5 6

CNDM

SW1

Max. 10 m including local wiring

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

Relay supply

Red 3

Brown 2

Orange 1

Purchased locally

Adaptor for external signal input (PAC-SC36NA)

Outdoor unit controller board

3 2 1

Insulate this point securely as this is not used.

<Low-level sound priority mode circuit>

SW7-1 SW7-2

OFF

0% (Operation stop)

75%

50%

OFF

OFF OFF

Power consumption

(SW1 on)

OCH566A

The blinking patterns of both LED1 (green) and LED2 (red) indicate the types of abnormality when it occurs. Types of abnor-

mality can be indicated in details by connecting an optional part ‘A-Control Service Tool (PAC-SK52ST)’ to connector CNM on outdoor controller board.

—

E6 E7

—

E0 E3 E4 E5

–

A0–A8

[Display] (1) Normal condition

(2) Abnormal condition

Unit condition

Outdoor controller board A-Control Service T ool

LED1 (Green) LED2 (Red) Check code

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

Lighted Lighted Lighted Lighted Lighted

Not lighted

Indication of the display

Alternately blinking display

Operation mode

Not lighted

Lighted

00, etc. 08, etc.

C5, H7, etc.

Indication Error

Check

code

Outdoor controller board

Contents Inspection method

LED1 (Green) LED2 (Red) 1 blinking 2 blinking

2 blinking 1 blinking

2 blinking

3 blinking

4 blinking

5 blinking

Connector(63H) is open.

Startup time over

Other check codes

Check code is not defined.

Miswiring of indoor/outdoor unit connecting wire, excessive number of indoor units (4 units or more)

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

Indoor/outdoor unit communication error (signal receiving error) is detected by indoor unit.

Indoor/outdoor unit communication error (transmitting error) is detected by indoor unit.

Indoor/outdoor unit communication error (signal receiving error) is detected by outdoor unit.

Indoor/outdoor unit communication error (transmitting error) is detected by outdoor unit.

Remote controller signal receiving error is detected by remote controller.

Remote controller transmitting error is detected by remote controller.

Remote controller signal receiving error is detected by indoor unit.

Remote controller transmitting error is detected by indoor unit.

Serial communication error <Communication between outdoor controller board and outdoor power board> <Communication between outdoor controller board and M-NET P.C. board>

Communication error of M-NET system

*1. Check code is displayed on remote controller. *2. Refer to service manual for indoor unit.

Check if indoor/outdoor connecting wire is connected correctly.

Check if 4 or more indoor units are connected to outdoor unit. 3Check if noise entered into indoor/outdoor connecting wire or power supply.

4Re-check error by turning off power, and on again.

Check if connector (63H) on the outdoor controller board is not disconnected.

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

Check if connector (CN4) on outdoor controller board and outdoor power board is not disconnected.

Check if there is poor connection of connector on outdoor controller board (CNMNT and CNVMNT).

Check M-NET communication signal.

For details, refer to check

codes of the wired remote controller or check the displays on the A-Control Service Tool (PAC-SK52ST) which is connected to the outdoor controller board as shown on the page 63.

1Check if connecting wire of indoor unit or remote controller is connected correctly. 2Check if noise entered into transmission wire of remote controller.

3Re-check error by turning off power, and on again.

Check if indoor/outdoor connecting wire is connected correctly.

Check if noise entered into indoor/outdoor connecting wire or

power supply.

Check if noise entered into indoor/outdoor controller board.

Re-check error by turning off power, and on again.

P.35

P.36 (EA) P.36 (Eb)

P36

(EC)

*2 *2

P.42 (E8)

P.42 (E9)

P.41 P.41 P.41 P.41

–

P.43

P.42

P.43–

P.46

Detailed

reference

page

1Be sure to replace the 4-way valve. 2Check refrigerant pipes for disconnection or leakage. 3After the recovery of refrigerant, vacuum dry the whole

refrigerant circuit.

4Refer to “10-6. HOW TO CHECK THE PARTS”. 5Check refrigerant circuit for operation.

OCH566A

U8 Ud

UF UP

U6 U3 U4

U5 U9

P1 P2 P9

P4 P5 P6

Indication Error

Check code

Outdoor controller board

Contents Inspection method

LED1 (Green)

LED2 (Red)

3 blinking 1 blinking

2 blinking

3 blinking

*1. Check code displayed on remote controller *2. Refer to service manual for indoor unit.

4 blinking

5 blinking

6 blinking

7 blinking

1 blinking

2 blinking

3 blinking

4 blinking

Abnormality of shell thermostat and discharging temperature (TH32)

1 Check if stop valves are open. 2 Check if connectors (TH32, LEV-A) on outdoor controller board are not

disconnected.

3 Check if unit fills with specified amount of refrigerant. 4 Measure resistance values among terminals on indoor valve and outdoor linear

expansion valve using a tester.

Abnormal high pressure (High pressure switch 63H operated.)

Abnormality of outdoor fan motor rotational speed

1 Check if indoor/outdoor units have a short cycle on their air ducts. 2 Check if connector (63H) on outdoor controller board is not disconnected. 3 Check if heat exchanger and filter are not dirty. 4 Measure resistance values among terminals on linear expansion valve using a

tester.

1 Check if stop valves are open. 2 Check looseness, disconnection, and converse connection of compressor wiring. 3 Measure resistance values among terminals on compressor using a tester. 4 Check if outdoor unit has a short cycle on its air duct.

Compressor over current breaking (Start-up locked) Compressor over current breaking Abnormality of current sensor (P.B.) Abnormality of power module

Open/short of discharge thermistor (TH32) Open/short of outdoor thermistors

(TH3, TH6, TH7 and TH8)

Check if connectors (TH3 or TH32, TH6 and TH7) on outdoor controller board

and connector (CN3) on outdoor power board are not disconnected.

Measure resistance value of outdoor thermistors.

Abnormality of heatsink temperature

1 Check if indoor/outdoor units have a short cycle on their air ducts. 2 Measure resistance value of outdoor thermistor(TH8).

1 Check the outdoor fan motor.

2 Check if the connector of TH3 on outdoor controller board is disconnected.

Abnormality of voltage 1 Check looseness, disconnection, and converse connection of compressor wiring.

2 Measure resistance value among terminals on compressor using a tester. 3 Check the continuity of contactor (52C). 4 Check if power supply voltage decreases. 5 Check the wiring of CNAF.

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

1 Check if connectors (CN20, CN21, CN29 and CN44) on indoor controller board are not disconnected. 2 Measure resistance value of indoor thermistors.

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

1 Check if connector (CN31)(CN4F) on indoor controller board is not disconnected. 2 Measure resistance value of indoor thermistors. 3 Measure resistance value among terminals on drain-up machine using a tester. 4 Check if drain-up machine works. 5 Check drain function.

Freezing (cooling)/overheating (heating) protection

1 Check if indoor unit has a short cycle on its air duct. 2 Check if heat exchanger and filter is not dirty. 3 Measure resistance value on indoor and outdoor fan motors. 4 Check if the inside of refrigerant piping is not clogged.

Abnormality of pipe temperature

1 Check if indoor thermistors (TH2 and TH5) are not disconnected from holder. 2 Check if stop valve is open. 3 Check converse connection of extension pipe. (on plural units connection) 4 Check if indoor/outdoor connecting wire is connected correctly. (on plural units

connection)

P.37

P.38

P.40 P.41 P.40 P.38 P.38 P.38

P.38 P.39

*2 *2 *2

Detailed

reference

page

Protection from overheat operation (TH3)

OCH566A

<Outdoor unit operation monitor function> [When option 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 check code by control-

ling DIP SW2 on ‘A-Control Service Tool’.

SW2 setting

1ON2 3 4 5 6

Display detail

Explanation for display Unit

Operation indicator SW2 : Indicator change of self diagnosis

(Be sure the 1 to 6 in the SW2 are set to OFF.)

(1) Display when the power supply ON.

When the power supply ON, blinking displays by turns. Wait for 4 minutes at the longest.

(2) When the display lights. (Normal operation)

1 Operation mode display.

1ON2 3 4 5 6

(Initial setting)

SW2

1 second

interval

LED1

(Lighting)

Display Operation Model

The tens digit : Operation mode

The ones digit : Relay output

C H d

Display

0 1 2 3 4 5 6 7 8 A

Compressor

Warming-up Compressor

4-way valve

Solenoid valve

— — —

— ON ON ON ON

—

— — — — — — —

— ON ON

—

— ON ON

—

— ON ON

— ON

—

— —

OFF / FAN

COOLING / DRY

HEATING

DEFROSTING

2 Display 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 (When power is turned on)

F5 E8 E9 EA Eb

E0–E7

63H connector(yellow) is open. Indoor/outdoor communication error (Signal receiving error) (Outdoor unit) Indoor/outdoor communication error (Transmitting error) (Outdoor unit) Miswiring of indoor/outdoor unit connecting wire, excessive number of indoor units (4 units or more) Miswiring of indoor/outdoor unit connecting wire(converse wiring or disconnection) Startup time over Communication error except for outdoor unit

Display

Inspection unit 0 1 2 3

Outdoor unit

Indoor unit 1

Indoor unit 2

Indoor unit 3

Display Contents to be inspected (During operation)

U1 U2 U3 U4 U5 U6 U8 Ud UF

P1–P8

A0–A7

Abnormal high pressure (63H operated) Abnormal high discharging temperature, shortage of refrigerant Open/short circuit of discharging thermistor (TH32) Open/short of outdoor unit thermistors (TH3, TH6, TH7 and TH8) Abnormal temperature of heatsink Abnormality of power module Abnormality in outdoor fan motor Overheat protection Compressor overcurrent interruption (When Comp. locked) Current sensor error Abnormal low pressure Compressor overcurrent interruption Abnormality of indoor units Abnormality of refrigerant Communication error of M-NET system

OCH566A

SW2 setting

Display detail

Explanation for display Unit

The black square (■) indicates a switch position.

1ON2 3 4 5 6

Liquid temperature (TH3)

−40 to 90

−40 to 90 (When the coil thermistor detects 0: or below, “-” and temperature are displayed by turns.) (Example) When −10:;

0.5 s 0.5 s 2 s

1ON2 3 4 5 6

Comp. surface temperature (TH32) 3 to 217 <SP125/140>

−52 to 221 <SP100>

Output step of outdoor FAN 0 to 10

The number of ON / OFF times of com-

pressor 0 to 9999

Compressor integrating operation times 0 to 9999

3 to 217 <SP125/140>

−52 to 221 <SP100> (When the discharge thermistor detects 100 : or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 105 :;

0.5 s 0.5 s 2 s

Step

100 times

10 hours

0 to 10

0 to 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 s 0.5 s 2 s

0 to 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 s 0.5 s 2 s

1ON2 3 4 5 6

Compressor operating current 0 to 50

LEV-A opening pulse 0 to 480

0 to 50 Note: Omit the figures after the decimal fractions.

0 to 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 s 0.5 s 2 s

Pulse

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.

Code

display

1ON2 3 4 5 6

Compressor operating frequency 0 to 255

0 to 255 (When it is 100 Hz or more, hundreds digit, tens digit and ones digit are displayed by turns. (Example) When 125 Hz;

0.5 s 0.5 s 2 s

1ON2 3 4 5 6

OCH566A

SW2 setting

Display detail

Explanation for display Unit

The black square (■) indicates a switch position.

1ON2 3 4 5 6

Liquid temperature (TH3) on error occur-

ring

−40 to 90

−40 to 90 (When the coil thermistor detects 0: or below, “-” and temperature are displayed by turns.) (Example) When −15:;

0.5 s 0.5 s 2 s

1ON2 3 4 5 6

Compressor operating current on error occurring 0 to 20

Error history (1) (latest) Alternate display of abnormal unit number and code

Error history (2) Alternate display of error unit number and code

3 to 217 <SP125/140>

−52 to 221 <SP100> (When the temperature is 100: or more, the hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 130:;

0.5 s 0.5 s 2 s

Code

display

Code

display

0 to 20

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

1ON2 3 4 5 6

Thermo ON time 0 to 999

Test run elapsed time 0 to 120

0 to 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 s 0.5 s 2 s

0 to 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 s 0.5 s 2 s

Minute

1ON2 3 4 5 6

Code

display

Operation mode on error occurring Operation mode of when operation stops due to

error is displayed by setting SW2 like below.

1ON2 3 4 5 6

(SW2)

Comp. surface temperature (TH32) 3 to 217 <SP125/140>

−52 to 221 <SP100>

OCH566A

SW2 setting

1ON2 3 4 5 6

Display detail

Explanation for display

Unit

Capacity setting display

Displayed as an outdoor capacity code.

Code

display

1ON2 3 4 5 6

Outdoor unit setting information

Indoor liquid pipe temperature (TH2(1)) Indoor 1

−39 to 88

Code

display

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

1ON2 3 4 5 6

Indoor intake temperature (TH1) 8 to 39

Capacity

SP100 SP125 SP140

Code

20 25 28

Setting details

• The tens digit (Total display for applied setting)

• The ones digit

H·P /

Cooling only

Single phase / 3 phase

Display details

0 : H·P 1 : Cooling only

0 :

Single phase

2 :

3 phase

Setting details

Defrosting switch

Display details

0 : Normal 1 : For high humidity

(Example) When heat pump, 3 phase and defrosting

(normal) are set up, “20” is displayed.

1ON2 3 4 5 6

Indoor cond./eva. temperature (TH5(1)) Indoor 1

−39 to 88

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

8 to 39

1ON2 3 4 5 6

The number of connected indoor units

Unit

0 to 1

(The number of connected indoor units are dis-

played.)

The black square (■) indicates a switch position.

1ON2 3 4 5 6

Indoor setting temperature 17 to 30

Outdoor 2-phase pipe temperature (TH6)

−39 to 88

17 to 30

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

OCH566A

SW2 setting

Display detail

Explanation for display Unit

The black square (■) indicates a switch position.

1ON2 3 4 5 6

°C

Discharge superheat. SHd 0 to 255

Cooling = TH32−TH6 Heating = TH32−TH5

0 to 255 (When the temperature is 100°C or more, hundreds digit, tens digit and ones digit are displayed by turns.)

0.1 A

Input current of outdoor unit

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

Normal Overvoltage error Undervoltage error Input current sensor error L

1-phase open error

Abnormal power synchronous signal ACTM/IGBT error (VHA) Undervoltage

• Display examples for multiple errors: Overvoltage (01) + Undervoltage (02) = 03 Undervoltage (02) + Power-sync signal error (08) = 0A L

1 phase open error (04) + ACTM/IGBT error (20) = 24

Description Display

00 01 02

04 08 20

DC bus voltage 180 to 370

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

1ON2 3 4 5 6

Outdoor heatsink temperature (TH8)

−40 to 200

−40 to 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.)

Outdoor air temperature (TH7)

−39 to 88

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

2 cycles

Number of defrost cycles 0 to FFFE

0 to FFFE (in hexadecimal notation) (When more than FF in hex (255 in decimal), the number is displayed in order of 163's and 162's, and 161's and 160's places. (Example) When 5000 cycles;

0.5 s 0.5 s 2 s

U9 error detail history (latest)

Code

display

OCH566A

SW2 setting

Display detail

Explanation for display Unit

1ON2 3 4 5 6

Capacity save 0 to 100 When air conditioner is connected to M-NET and capacity save mode is demanded, “0” to ”100” is displayed.

When there is no setting of capacity save “100” is displayed.

0 to 100 (When the capacity is 100% hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 100%;

0.5 s 0.5 s 2 s

Code

display

Error postponement code history (2) of outdoor unit

Postponement code display Blinking: During postponement Lighting: Cancellation of postponement “00” is displayed in case of no postponement.

Code

display

Error postponement code history (3) of outdoor unit

Postponement code display Blinking: During postponement Lighting: Cancellation of postponement “00” is displayed in case of no postponement.

Code

display

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

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

3: Outdoor pipe temperature/Liquid (TH3) 6: Outdoor pipe temperature/2-phase (TH6) 7: Outdoor outside temperature (TH7) 8: Outdoor heatsink (TH8)

1ON2 3 4 5 6

Error thermistor display

When there is no error thermistor, “–“ is displayed.

Code

display

Operation frequency on error occurring 0 to 255

0 to 255 (When it is 100 Hz or more, hundreds digit, tens digit and ones digit are displayed by turns.) (Example) When 125 Hz;

0.5 s 0.5 s 2 s

1ON2 3 4 5 6

Fan step on error occurring 0 to 10

0 to 10

1ON2 3 4 5 6

Step

The black square (■) indicates a switch position.

OCH566A

SW2 setting

Display detail

Explanation for display Unit

1ON2 3 4 5 6

Pulse

LEV-A opening pulse on error occurring 0 to 480

0 to 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 s 0.5 s 2 s

Indoor intake temperature (TH1) on error occurring 8 to 39

8 to 39

Indoor liquid pipe temperature (TH2) on error occurring

−39 to 88

−39 to 88 (When the temperature is 0 °C or less, “-” and temperature are displayed by turns.) (Example) When - 15 °C;

0.5 s 0.5 s 2 s

Indoor cond./eva. temperature (TH5) on error occurring

−39 to 88

−39 to 88 (When the temperature is 0°C or less, “–” and temperature are displayed by turns.) (Example) When −15°C;

0.5 s 0.5 s 2 s

Outdoor 2-phase pipe temperature (TH6) on error occurring

−39 to 88

−39 to 88 (When the temperature is 0°C or less, “-” and temperature are displayed by turns.) (Example) When −15°C;

0.5 s 0.5 s 2 s

Outdoor air temperature (TH7) on error occurring

−39 to 88

−39 to 88 (When the temperature is 0°C or less, “-” and temperature are displayed by turns.) (Example) When −15°C;

0.5 s 0.5 s 2 s

Outdoor heatsink temperature (TH8) on error occurring

−40 to 200

−40 to 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.)

1ON2 3 4 5 6

The black square (■) indicates a switch position.

OCH566A

SW2 setting

Display detail

Explanation for display Unit

0 to 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 s 0.5 s 2 s

Sub cool on error occurring. SC 0 to 130

Cooling = TH6−TH3 Heating = TH5−TH2

0 to 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 s 0.5 s 2 s

Thermo-on time until error stops 0 to 999

0 to 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 s 0.5 s 2 s

1ON2 3 4 5 6

Minute

1ON2 3 4 5 6

Normal Overvoltage error Undervoltage error Input current sensor error L

1-phase open error

Abnormal power synchronous signal ACTM/IGBT error (VHA) Undervoltage

• Display examples for multiple errors: Overvoltage (01) + Undervoltage (02) = 03 Undervoltage (02) + Power-sync signal error (08) = 0A L

1 phase open error (04) + ACTM/IGBT error (20) = 24

Description Display

00 01 02

04 08 20

Code

display

Discharge super heat on error occurring SHd 0 to 255

Cooling = TH32−TH6 Heating = TH32−TH5

The black square (■) indicates a switch position.

U9 error details (To be shown while error call is deferred.)

OCH566A

11 FUNCTION SETTING

Function

Settings

Mode No.

Setting No.

Initial setting

(when sent from the factory)

Remarks

Power failure automatic recovery Indoor temperature detecting

LOSSNAY connectivity

Power supply voltage Frost prevention temperature Humidifier control

Change of defrosting control

OFF ON Average data from each indoor unit Data from the indoor unit with remote controller Data from main remote controller* Not supported Supported

(Indoor unit does not intake outdoor air through LOSSNAY

)

Supported

(Indoor unit intakes outdoor air through LOSSNAY) 240V 220V,230V 2: (Normal) 3: When the compressor operates, the humidifier also operates. When the fan operates, the humidifier also operates. Standard For high humidity

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

04 15 16 17

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

11-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER

Each function can be set as necessary using the remote controller. The setting of function for each unit can only be done by the remote controller. Select function available from the table 1.

<Table 1> Function selections

(1) Functions available when setting the unit number to 00 (Select 00 referring to 4 setting the indoor unit number.)

Mode02: indoor temperature detecting

No.

Indoor temperature(ta)=

No.1

Average data of the sensor on all the indoor units

Initial setting

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

No.2

The data of the sensor on the indoor unit that connected with remote controller

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

No.3

The data of the sensor on main remote controller.

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

OUTDOOR

INDOOR

REMOTE (MAIN)

REMOTE (SUB)

INDOOR

OUTDOOR

INDOOR

REMOTE (MAIN)

REMOTE (SUB)

OUTDOOR

INDOOR

REMOTE (MAIN)

OUTDOOR

INDOOR

REMOTE (MAIN)

REMOTE (SUB)

INDOOR

*2 Can be set only when the outdoor unit is an inverter type.

*The functions is available only when the wired remote controller is used. The functions is not available for floor standing models.

<Table 2> Meaning of "Function setting"

OCH566A

Function Settings

No.

Mode

No.

Setting

: Initial setting (Factory setting

)

- : Not available 4-Way

cassette

PLA-BA

Filter sign 100h 1

2500h 07 2

No filter sign indicator

Air flow

Quiet

(

Fan speed

)

Standard

08 2

High ceiling

No.of air outlets 4 directions 1

3 directions 09 2 2 directions

Optional high efficiency

Not supported

filter

Supported

Vane setting

No vanes (Vane No.3 setting : PLA only

)

Vane No.1 setting

11 2

Vane No.2 setting

Optional humidifier

Not supported

(

PLA only

)

Supported

Vane differential setting

No.1 setting (TH5: 24-28:

)

in heating mode

No.2 setting (Standard, TH5:28-32:

)

14 2

(

cold wind prevention

)

No.3 setting (TH5: 32-38:

)

Swing

Not available Swing

Available Wave air flow

Set temperature in heating

Available

mode (4 deg up

)

Not available

2 Fan speed during the Extra low 1 heating thermo OFF

Stop

25 2

Set fan speed

3 Fan speed during the

Set fan speed

1 cooling thermo OFF

Stop

2 Detection of abnormality of

Available

1 the pipe temperature (P8)Not available

}

PLA-BA

(2) Functions available when setting the unit number to 01-03 or AL (07 in the 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 setting the

indoor unit number of Operating Procedure.

•

When setting functions for a simultaneous- Twin Triple indoor unit system, set the unit number to 01 to 03 for each indoor unit in the case of selecting different functions for each unit referring to 4 setting the indoor unit number of Operating Procedure.

• When setting the same functions for an entire simultaneous Twin Triple-indoor unit system, set refrigerant address to AL (07

in the case of wireless remote controller) referring to 4 setting the indoor unit number of Operating Procedure.

<Table 4> Available functions and settings for PEAD-SP

•

JA(L)

Function Settings

No.

Mode

No.

Setting

: Initial setting (

Factory setting

)

Filter sign 100h 1

2500h 07 2

No filter sign indicator

External static pressure

35/50/70/100/150Pa

08 10

1 2

Extra low

Fan speed during the heating thermo OFF

Stop

Set fan speed

1 2

Detection of abnormality of the pipe

Set temperature in heating

mode (4 deg up

)

Refer to the right table

External static pressure

35/50/70/100/150Pa

Refer to the right table Available Not available

Fan speed during the cooling thermo OFF

Set fan speed Stop

Available Not available

External static

pressure

Setting No.

Initial setting

(

Factory setting

)

35Pa 50Pa 70Pa 100Pa 150Pa

2 3 1 2 3

Mode No. 08 Mode No. 10

1 1 2 2 2

<Table 3> Available functions and settings for PLA-BA

OCH566A

Main

Main display:

Cursor Page

Main menu

Maintenance Initial setting Service

F1 F2 F3 F4

Service menu

Cursor

Select:

Enter maintenance password

unem ecivreS

rosruC

:unem niaM

Test run Input maintenance info. Function setting Check Self check

Maintenance password Remote controller check

Service menu

Service menu:

Not available.

Please stop the unit.

When the Service menu is selected, a window will appear asking for the pass-

word.

To enter the current maintenance password (4 numerical digits), move the cursor to the digit you want to change with the F1

or F2 button.

Set each number (0 through 9) with the

orF4button.

Then, press the

button.

Select "Service" from the Main menu, and press the button.

*At the main display, the menu buttom and select "Service" to make the

maintenance setting.

Maintenance password is required

Note: The initial maintenance password is "9999". Change the default

password as necessary to prevent unauthorized access. Have the password available for those who need it.

: If you forget your maintenance password, you can initialize the

password to the default password "9999" by pressing and holding the

and

buttons simultaneously for three seconds on the

maintenance password setting screen.

If the password matches, the Service menu will appear.

The type of menu that appears depends on the connected indoor units’ type.

Note: Air conditioning units may need to be stopped to make certain set-

tings. There may be some settings that cannot be made when the system is centrally controlled.

A screen will appear that indicates the setting has been saved.

Navigating through the screens

• To go back to the Main menu ..................

button

• To return to the previous screen ...............

button

11-1-1. Selecting functions using the wired remote controller <PAR-31MAA>

OCH566A

F1 F2 F3 F4

unem ecivreS

rosruC

:unem niaM

Test run Input maintenance info. Function setting Check Self check

F1 F2 F3 F4

Function setting

Cursor Address

Monitor:

Ref. address Unit No.

Grp./1/2/3/4/All

Function setting

Cursor Cursor

Request:

Ref. address Mode 1 Mode 2 Mode 3 Mode 4

Grp.

F1 F2 F3 F4

Function setting

Cursor Cursor

Request:

Ref. address Mode 1 Mode 2 Mode 3 Mode 4

Unit #1

Set the indoor unit refrigerant addresses and unit numbers with the F1

through F4 buttons, and then press the button to confirm the current setting.

Select "Function setting" with the F1

or F2 button, and press the button.

When data collection from the indoor units is completed, the current settings

appears highlighted. Non-highlighted items indicate that no function settings are made. Screen appearance varies depending on the "Unit No." setting.

Use the F1 or F2 button to move the cursor to select the mode number,

and change the setting number with the F3

or F4 button.

Select "Service" from the Main menu, and press the button.

When the

button is pressed, the target indoor unit will start fan operation.

If the unit is common or when running all units, all indoor units for the selected

refrigerant address will start fan operation.

F1 F2 F3 F4

Function setting

Ref. address

Sending data

Grp.

When the settings are completed, press the button to send the setting

data from the remote controller to the indoor units.

When the transmission is successfully completed, the screen will return to the Function setting screen.

Note: • Make the above settings only on Mr. Slim units as necessary.

•

The above function settings are not available for the City Multi units.

•

Table 1 summarizes the setting options for each mode number. Refer to the indoor unit Installation Manual for the detailed information about initial settings, mode numbers, and setting numbers for the indoor units.

•

Be sure to write down the settings for all functions if any of the initial settings has been changed after the completion of installation work.

OCH566A

11-1-2. Selecting functions using the wired remote controller <PAC-YT52CRA>

Make the following settings for Mr. SLIM if necessary. Set the functions of each indoor unit from the remote controller, as required. The functions of each indoor unit can be

Set the functions by selecting the necessary items from “Table 1. Function selection”, “Table 3. Available functions and settings

for PLA-BA” or “Table 4. Available functions and settings for PEAD-SP•JA(L)” in the previous pages.

selected only from the remote controller.

First grasp the function selection flow. The following describes setting of “Thermistor selection” of Table 1 as an example.

(For the actual setting procedure, see <Setting procedure>  1 to  .) 0

1 Check the function selection set contents. 2

Switch to the FUNCTION SELECTION mode*. (Press and simultaneously in the remote controller OFF state.)

3 Refrigerant address specification

→ 00 (Outdoor unit specification) (Unnecessary for single refrigerant system)

4 Unit address No. specification

(Buttons and ) → 00 (Indoor unit specification)

5 Register (Press button .)

6 Mode No. Selection

→ 02 (Thermistor selection)

7 Setting No. selection

→ 3 (Built-in sensor on the remote controller)

8 Register (Press button .)

(Specified indoor unit

→ Fan operation)

End?

Ending function display*

(Press buttons and simultaneously.)

Change

refrigerant

address and unit

address No.?

Yes

 0

D C

B, C D

(Buttons and ) B, C D

<Setting Procedure> (Set only when change is necessary.)

Check the set contents of each mode. When the set contents of a mode were changed by function selection, the functions

Check the set contents as described in steps to

and change the setting based on the entries

in the Table 1 check field.

For the initial settings, refer to the indoor unit installation manual.

of that mode also change.

2 7

Set the remote controller to Off. Press and hold down the and the

buttons (for modes 15 to 28, add the B

time for 2 seconds or longer.

“ (FUNCTION)” blinks for a while, then the remote controller display changes to the display shown below.

Refrigerant address

display

D C

Set the outdoor unit refrigerant address No.

When the B

and C

buttons are pressed, the refrigerant address No.

decreases and increases

Set it to the refrigerant address No. whose function you want to select. (This step is unnecessary for single refrigerant system.)

between 00 and 15.

If the remote controller enters the OFF state after the “ (FUNCTION)” and room temperature displays “ ” have

flashes for 2 seconds, communication is probably abnormal. Make sure there

are no noise sources near the transmission line.

Note: If you make a mistake during operation, end function selection by step and repeat selection from step

 0

Set the indoor unit address No. Press the

button. The unit address No. display “– –” flashes.

When the and C buttons are pressed, the unit address No. changes in the order of

00↔ 01 ↔ 02 ↔ 03 ↔ 04 ↔ AL. Set it to the unit address No. of the indoor unit for which functions you want to set.

Unit address No. display

1. When setting mode 1 to 6 or 15 to 22, set the unit address No. to “00”.

2. When setting modes 7 to 14 or 23 to 28:

- When setting for each indoor unit, set the unit address No. to “01-04”.

- When batch setting for all indoor units, set the unit address No. to “AL”.

Notes:

*For modes 15 and higher, press

B,C and D simultaneously.

Modes 01 to 14 can be activated by pressing buttons

C and D simultaneously, and modes 15 to 28 by pressing buttons

B,C and D

simultaneously.

at the same

)

OCH566A

Refrigerant address and unit address No. registration Press the A

button. The refrigerant address and unit address No. are registered.

After a while, the mode No. display “– –” flashes.

OFF

Mode No. display

When “ ” flashes at the room temperature display, the selected refrigerant address is not in the system.

When “F” is displayed at the unit address No. display, and when it flashes together with the refrigerant address display,

the selected unit address No. does not exist.

Correctly set the refrigerant address and unit address No. by repeating steps 3 and 4. .

When registered using the A , the registered indoor unit begins fan operation. When you want to know the location of the indoor units of the unit address No. for which functions were selected, check here. When the unit address No. is 00 or AL, all the indoor units of the selected refrigerant address perform the fan operation.

OFF

I.e., When refrigerant address 00, unit address No. = 02 registered

Refrigerant address 00

Indoor unit

Outdoor unit

Registration

Simple MA Controller

Fan operation

Unit address

No. 01

Unit address

No. 02

Unit address

No. 03

When grouping by different refrigerant systems and an indoor unit other than the specified refrigerant address performs,

the fan operation

the refrigerant address set here is probably duplicated.

Recheck the refrigerant address at the outdoor unit DIP switches. Mode No. selection

Select the mode No. you want to set with the

buttons. (Only the modes which can be set

and C

is selected.)

Mode No. display

Mode No. 02 = Thermistor selection

Select the setting contents of the selected mode.

When the button is pressed, the current setting No. flashes. Use this to check the currently set contents.

Select the setting No. using the

buttons. and C

. .

Setting No. display

Setting No. 1 = Average temperature reading of the indoor units in operation

Setting No. 3 = Built-in sensor on the remote controller

The contents set at steps 3 to 7 are registered.

When the A

button is pressed, the mode No. and setti

ng No. flash and registration begins.

The flashing mode No. and setting No. change to a steady light and setting ends.

OFF

When “ ” flashes at the Mode No. display, communication is probably abnormal. Make sure there are no noise sources near the transmission line.

To select more functions, press theD

and repeat steps

to 8

End function selection.

Press and hold down the and

buttons at the same time

After a while, the function selection display disappears and the remote controller returns to the air conditioner off display. Do not operate the air conditioner from the remo

te controller for 30 seconds after the end of function selection.

Note:

Note: When the indoor unit functions were

changed using the function selection after

installation is complete,

always indicate the set contents by entering check marks or

other marks in the appropriate check field of Table 1.

(for modes 15 to 28, add the B

)

for 2 seconds or longer.

OCH566A

ON/OFF

TEMP

FAN

VANE

MODE

CHECK

LOUVER

TEST RUN

AUTO STOP

AUTO START

min

CHECK

RESET

SET

CLOCK

Flow of function selection procedure

The flow of the function selection procedure is shown below. This example shows how to turn off the function that raises the set temperature by 4 degrees during HEAT operation. (Mode 24: 2) The procedure is given after the flow chart.

1 Check the function selection setting.

2 Switch to function selection mode.

(Enter address "50" in check mode,

then press the button.)

Check mode is the mode entered when you press the CHECK button twice to display "CHECK".

3 Specify unit No. "01" (since the function applies to unit 01). (Set address "01" while still in check mode, then press the button.) Note: You cannot specify the refrigerant address.

Select mode No. "24" (function that raises set temperature by 4 degrees during HEAT operation).

(Set address "24" while still in check mode, then press the button.)

Finished

8 End function selection mode. (End check mode.)

YES

Note: When you switch to function selection mode on the wireless remote controller's operation area, the unit ends function selection mode automatically if nothing is input for 10 minutes or longer.

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

Change unit No.

YES

min

[Flow of function selection procedure]

11-1-3. Selecting functions using the wireless remote controller (Type C)

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.

By setting unit number with the button, specified indoor unit starts performing fan operation. Detect which unit is assigned to which number using this function. If unit number is set to AL, all the indoor units in same refrigerant system start performing fan operation simultaneously.

[Operating instructions]

1 Check the function settings. 2 Press the button twice continuously. → CHECK is lit and “00” blinks.

Press the TEMP button once to set “50”. Direct the wireless remote controller toward the receiver of the indoor unit and press the button. 3 Set the unit number. Press the TEMP button to set the unit number. (Press “01” to specify the indoor unit whose unit number is 01.) Direct the wireless remote controller toward the receiver of the indoor unit and press the button.

Notes:

1. If a unit number that cannot be recognized by the unit is entered, 3 beeps of 0.4 seconds will be heard. Re-enter the unit number setting.

2. If the signal was not received by the sensor, you will not hear a beep or a “double beep” may be heard. Re-enter the unit number setting. 4 Select a mode. Press the TEMP button to set a mode. Press “24” to turn on the function that raises the set temperature by 4 degree during heat

operation. Direct the wireless remote controller toward the sensor of the indoor unit and press the button. → The sensor-operation indicator will flash and beeps will be heard to indicate the current setting number. Current setting number: 1 = 1 beep (1 second) 2 = 2 beeps (1 second each) 3 = 3 beeps (1 second each)

Notes:

1. If a mode number that cannot be recognized by the unit is entered, 3 beeps of 0.4 seconds will be heard. Re-enter the mode number.

2. If the signal was not received by the sensor, you will not hear a beep or a “double beep” may be heard. Re-enter the mode number. 5 Select the setting number. Press the TEMP button to select the setting number. (02: Not available) Direct the wireless remote controller toward the receiver of the indoor unit and press the button. → The sensor-operation indicator will flash and beeps will be heard to indicate the 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)

Notes:

1. If a setting number that cannot be recognized by the unit is entered, the setting will turn back to the original setting.

2. If the signal was not received by the sensor, you will not hear a beep or a “double beep” may be heard. Re-enter 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.

CHECK

minhh

min

OCH566A

Function buttons

F1 F2 F3 F4

Press to turn ON/OFF the indoor unit.

ON / OFF button

When the backlight is off, pressing any button turns the backlight on and does not perform its function. (except for the

(ON / OFF) button)

The functions of the function buttons change depending on the screen. Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen. When the system is centrally controlled, the button function guide that corresponds to the locked button will not appear.

Press to save the setting.

SELECT button

Press to return to the previous screen.

RETURN button

Press to bring up the Main menu.

MENU button

Operation settings will appear. When the backlight is off, pressing any button turns the backlight on and it will stay lit for a certain period of time depending on the screen.

Backlit LCD

This lamp lights up in green while the unit is in operation. It blinks while the remote controller is starting up or when there is an error.

ON / OFF lamp

Main display : Press to change the operation mode. Main menu : Press to move the cursor down.

Function button

Main display : Press to decrease temperature. Main menu : Press to move the cursor up.

Function button

Main display : Press to increase temperature. Main menu : Press to go to the previous page.

Function button

Main display : Press to change the fan speed. Main menu : Press to go to the next page.

Function button

Fri

Room

Set temp.

Mode Temp. Fan

Cool Auto

Main

Main display:

Cursor Page

Main menu

Vane·Louver·Vent. (Lossnay) High power Timer Weekly timer OU silent mode

Function guide

11-2. FUNCTION SELECTION OF REMOTE CONTROLLER

11-2-1. PAR-31MAA

OCH566A

Not all functions are available on all models of indoor units.

Energy saving

Auto return

Schedule

Night setback

Main menu

Press the

button.

Move the cursor to the desired item with the

and

buttons, and press the

SELECT

button.

Vane · Louver · Vent. (Lossnay)

High power

Weekly timer

Restriction

Maintenance

Initial setting

On / Off timer

Auto-Off timer

Temp. range

Operation lock

Manual vane angle

Main / Sub

Timer

Main display

Contrast

Display details

Auto mode

Administrator password

Language selection

Service

Input maintenance info.

Function setting

Check

Self check

Maintenance password

Remote controller check

Test run

Clock

Auto descending panel

Filter information Error information

OCH566A

Setting and display items Setting details

Vane · Louver · Vent. (Lossnay) Use to set the vane angle.

• Select a desired vane setting from ve different settings.

Use to turn ON / OFF the louver.

• Select a desired setting from "ON" and "OFF."

Use to set the amount of ventilation.

• Select a desired setting from "Off," "Low," and "High."

High power Use to reach the comfortable room temperature quickly.

• Units can be operated in the High-power mode for up to 30 minutes.

Timer On/Off timer* Use to set the operation On/Off times.

• Time can be set in 5-minute increments.

Auto-Off timer Use to set the Auto-Off time.

• Time can be set to a value from 30 to 240 in 10-minute increments.

Weekly timer* Use to set the weekly operation On / Off times.

• Up to 8 operation patterns can be set for each day. (Not valid when the On/Off timer is enabled.)

Restriction Temp. range Use to restrict the preset temperature range.

• Different temperature ranges can be set for different operation modes.

Operation lock Use to lock selected functions.

• The locked functions cannot be operated.

Energy saving Auto return Use to get the units to operate at the preset temperature after performing energy-save operation for a

specied time period.

• Time can be set to a value from 30 and 120 in 10-minute increments. (This function will not be valid when the preset temperature ranges are restricted.)

Schedule* Set the start/stop times to operate the units in the energy-save mode for each day of the week, and set the

energy-saving rate.

• Up to 4 energy-save operation patterns can be set for each day.

• Time can be set in 5-minute increments.

• Energy-saving rate can be set to a value from 0% or 50 to 90% in 10% increments.

Night setback* Use to make Night setback settings.

• Select "Yes" to enable the setting, and "No" to disable the setting. The temperature range and the start/stop times can be set.

Filter information Use to check the lter status.

• The lter sign can be reset.

Error information Use to check error information when an error occurs.

• Check code, error source, refrigerant address, unit model, manufacturing number, contact information (dealer's

phone number) can be displayed.

(The unit model, manufacturing number, and contact information need to be registered in advance to be displayed.)

Maintenance Auto descending panel Auto descending panel (Optional parts) Up / Down you can do.

Manual vane angle Use to set the vane angle for each vane to a xed position.

Initial setting Main/Sub When connecting two remote controllers, one of them needs to be designated as a sub controller.

Clock Use to set the current time. Main display Use to switch between "Full" and "Basic" modes for the Main display.

• The initial setting is "Full."

Contrast Use to adjust screen contrast. Display details Make the settings for the remote controller related items as necessary.

Clock: The initial settings are "Yes" and "24h" format. Temperature: Set either Celsius (°C) or Fahrenheit (°F). Room temp. : Set Show or Hide. Auto mode: Set the Auto mode display or Only Auto display.

Auto mode Whether or not to use the Auto mode can be selected by using the button.

This setting is valid only when indoor units with the Auto mode function are connected.

Administrator password

The administrator password is required to make the settings for the following items.

• Timer setting • Energy-save setting • Weekly timer setting

• Restriction setting • Outdoor unit silent mode setting • Night set back

Language selection Use to select the desired language.

Service Test run Select "Test run" from the Service menu to bring up the Test run menu.

• Test run • Drain pump test run

Input maintenance Select "Input maintenance Info." from the Service menu to bring up the Maintenance information screen.

The following settings can be made from the Maintenance Information screen.

• Model name input • Serial No. input • Dealer information input

Function setting Make the settings for the indoor unit functions via the remote controller as necessary. Check Error history: Display the error history and execute “delete error history”.

Refrigerant leak check: Refrigerant leaks can be judged. Smooth maintenance: The indoor and outdoor maintenance data can be displayed.

Request code: Details of the operation data including each thermistor temperature and error history can be checked. Self check Error history of each unit can be checked via the remote controller. Maintenance password Use to change the maintenance password. Remote controller check

When the remote controller does not work properly, use the remote controller checking function to trou-

blushoot the problem.

* Clock setting is required.

OCH566A

12 EASY MAINTENANCE FUNCTION

12-1. SMOOTH MAINTENANCE

12-1-1. PAR-31MAA

Maintenance data, such as the indoor/outdoor unit’s heat exchanger temperature and compressor operation current can be displayed with “Smooth maintenance”.

This function cannot be executed during test operation. Depending on the combination with the outdoor unit, this function may not be supported by some models.

F1 F2 F3 F4

Check menu

Cursor

Service menu:

Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Request code

Smooth maintenance

Begin:

Smooth maintenance

Exit:

Ref.address Stable mode

Cursor

−

Address

＋

Ref.address Stable mode

Stabilization→Collecting

Cool / Heat/ Normal

Smooth maintenance

Return:

Smooth maintenance

Return:

Smooth maintenance

Return:

Page

COMP. current COMP. run time COMP. On / Off COMP. frequency

Hr times

Ref. address

Cool

Ref.address

Cool

Ref.address

Cool

Sub cool OU TH4 temp. OU TH6 temp. OU TH7 temp.

IU air temp. IU HEX temp. IU filter time

Select "Smooth maintenance" with the F1 or F2 button, and press the button.

Select "Check" with the F1

or F2 button, and press the button.

Select "Service" from the Main menu, and press the

button.

Set each item.

Select the item to be changed with the

F1orF2

button.

Select the required setting with the

button.

■

<Ref.address>setting [ 0 ]–[ 15 ]

■

<Stable mode>setting [ Cool ] / [ Heat ] / [ Normal ]

Press the

button, Fixed operation will start.

* Stable mode will take approx. 20 minutes.

The operation data will appear.

The Compressor-Accumulated operating (COMP. run) time is 10-hour unit, and the Compressor-Number of operation times (COMP. On / Off) is a 100-time unit (fractions discarded).

Navigating through the screens

• To go back to the Main menu ..........

button

• To return to the previous screen .......

button

12-1-2. PAC-YT52CRA

Smooth maintenance is not available for this model of remote controller.

OCH566A

MONITORING THE OPERATION DAT A BY THE REMOTE CONTROLLER

Details on the operation data including each thermistor temperature and error history can be conrmed with PAR-31MAA. This function is not available for PAC-YT52CRA.

F1 F2 F3 F4

Check menu

Cursor

Service menu:

Error history Refrigerant volume check Refrigerant leak check Smooth maintenance Request code

Select "Request code" with the F1 or F2 button, and press the button.

Select "Check" with the F1

or F2 button, and press the button.

Set the Refrigerant address and Request code.

Select the item to be changed with the

button.

Select the required setting with the

button.

■

<Ref.address>setting [ 0 ]–[ 15 ]

■

<Request code>setting

Press the

button, Data will be collected and displayed.

F1 F2 F3 F4

Request code

Request:

Request code

Ref.address

Request code

Cursor −＋

Ref.address

Request code

Cursor

−＋

Request code: 004

Discharge temperature: 69˚C

Select "Service" from the Main menu, and press the button.

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

OCH566A

13-2. REQUEST CODE LIST

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

Request code

Request content

Description

(Display range)

Unit Remarks

0 1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16 17 18

20 21

22 23 24 25 26 27 28 29 30 31

35 36

37 38 39 40 41 42 43 44 45 46 47 48 49

Operation state Compressor-Operating current (rms) Compressor-Accumulated operating time Compressor-Number of operation times Discharge temperature (TH4 or TH32) Outdoor unit - Liquid pipe 1 temperature (TH3) Outdoor unit - Liquid pipe 2 temperature Outdoor unit-2-phase pipe temperature (TH6)

Outdoor unit-Outside air temperature (TH7) Outdoor unit-Heat sink temperature (TH8)

Discharge super heat (SHd) Sub-cool (SC)

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

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) <Heat mode-4-deg correction> Indoor unit-Intake air temperature (Unit No. 2) <Heat mode-4-deg correction> Indoor unit-Intake air temperature (Unit No. 3) <Heat mode-4-deg correction> Indoor unit-Intake air temperature (Unit No. 4) <Heat mode-4-deg correction>

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

Refer to 13-2-1. Detail Contents in Request Code. 0–50 0–9999 0–9999 3–217

−40–200

0–9999

−39–88

– A

10 hours

100 times

: : : :

: :

Hz Hz

Step

rpm

Pulses Pulses

A V

Units

: :

: : : :

Minutes Minutes

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

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

"0"

is displayed if the target unit is not present.

"0"

is displayed if the target unit is not present.

Not possible to activate maintenance mode during the test run.

0–50

0–999 0–120

−39–88

8–39

17–30

0–4

180–370

0–500

0–10

0–255

0–130

−39–88

−40–90

OCH566A

Request code

Request content

Description

(Display range)

Unit Remarks

50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83

84 85

86 87 88

89 90

92 93 94 95 96 97 98 99

100

101

102

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-Microprocessor version information

Outdoor unit-Microprocessor version information (sub No.)

Outdoor unit - Error postponement history 1 (latest)

Outdoor unit - Error postponement history 2 (previous)

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

0–255

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

"0000": Not connected

Examples) Ver 5.01 Auxiliary information (displayed after version information) Examples) Ver 5.01 A000

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)

– – – – – –

% – –

– –

– – – – – – –

–

Ver

–

Code

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

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

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

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

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

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

"0001": Connected

"0000": Not washed "0001": Washed

→ "0501"

→ "A000"

OCH566A

Request code

Request content

Description

(Display range)

Unit Remarks

103 104 105

106

107 108 109 110 111 112 113 114 115 116 117 118 119 120

121

122

123 124

125 126 127 128 129 130 131

132

133

134 135

136 137 138 139 140

~ 146 147 148 149 150 151 152

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

Code Code Code

Sensor

number

10 hours

100 times

: : : :

Step

rpm

Pulses 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 conditioner consists of two or more indoor units (twin, triple, quad). Average value of all indoor units is displayed if the air conditioner consists of two or more indoor units (twin, triple, quad).

Error history 1 (latest) Error history 2 (second to last) Error history 3 (third to last)

Abnormal thermistor display (TH3/TH6/TH7/TH8)

Operation mode at time of error Compressor-Operating current at time of error Compressor-Accumulated operating time at time of error Compressor-Number of operation times at time of error Discharge temperature at time of error

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

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

Outdoor unit-Outside air temperature (TH7) at time of error Outdoor unit-Heat sink temperature (TH8) at time of error Discharge super heat (SHd) at time of error Sub-cool (SC) at time of error Compressor-Operating frequency at time of error Outdoor unit at time of error

• Fan output step Outdoor unit at time of error

• Fan 1 speed (Only for air conditioners with DC fan) Outdoor unit at time of error

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

LEV (A) opening at time of error LEV (B) opening at time of error

Thermostat ON time until operation stops due to error

Indoor - Liquid pipe temperature at time of error

Indoor-2-phase pipe temperature at time of error

Indoor at time of error

• Intake air temperature <Thermostat judge temperature>

Indoor-Actual intake air temperature Indoor - Liquid pipe temperature Indoor-condenser/evaporator pipe temperature

0–9999 0–9999

3–217

−40–90

−39–88

−40–200

0–255 0–130 0–255

0–10

0–9999

0–500 0–500

0–999

−39–88

OCH566A

Request code

Request content

Description

(Display range)

Unit Remarks

153 154

155 156

157 158 159

160 161 162 163 164 165 166 167

~ 189 190 191

192

~ 764 765 766

767

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

Examples) Ver 5.01 →"0501" Auxiliary information (displayed after version information) Examples) Ver 5.01 A000

→"A000"

1 hour

10 hours

– – –

– – – – –

Ver

–

For indoor fan phase control For indoor fan pulsation control For indoor DC brushless motor control

Indoor-Fan operating time (After filter is reset) Indoor-Total operating time (Fan motor ON time)

Indoor fan output value (Sj value) Indoor fan output value (Pulsation ON/OFF) Indoor fan output value (duty value)

Indoor unit-Model setting information Indoor unit-Capacity setting information Indoor unit-SW3 information Wireless pair No. (indoor control board side) setting Indoor unit-SW5 information

Indoor unit-Microcomputer version information Indoor unit-Microcomputer version information (sub No.)

Stable operation (Heat mode) Stable operation (Cool mode)

Stable operation cancellation

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 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".

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

0–9999

0–255

OCH566A

Frequency control state 2

Display

Discharge temperature

Condensation temperature

Anti-freeze

Heatsink temperature

overheat prevention

protection control

overheat prevention 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

13-2-1. Detail Contents in Request Code

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

Data display

Relay output state Operation mode

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

Data display

Operation mode

Display Operation mode

0 STOP • FAN C COOL • DRY H HEAT d Defrost

Relay output state

Display

Power currently

Compressor Four-way valve Solenoid valve

supplied to compressor

Unit No. 4 state Unit No. 3 state

Unit No. 2 state Unit No. 1 state

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.

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

Data display State 0 0 0 0 Normal 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 1

Display Current limit control

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

–

ON ON

0 1 2 3 4 5 6 7 8 A

–

ON ON ON ON

–

ON ON

–

OCH566A

[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 0 0

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

Data display

Actuator output state 1 Actuator output state 2

Actuator output state 1

Display SV1 Four-way valve Compressor

0 1

2 3

4 5

6 7

8 9

A b

d E F

ON ON

ON ON ON ON

ON ON

ON ON ON ON

Actuator output state 2

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 1 Error content 2

Error content 1 : Detected

Display

Overvoltage Undervoltage L-phase

Power synchronizing

error error open error

signal error 0 1 2 3 4 5 6 7 8 9

E F

Error content 2 : Detected

Display

Converter Fo

PAM error

error 0 1 2 3

Compressor is

warming up

OCH566A

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

Data display

000

Setting content

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

Data display

000

Input state

Input state : Input present

Display

Contact demand Silent mode Spare 1 Spare 2

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

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

Data display

Capacity

10 50

9 35

11 60 14 71 20 100 25 125 28 140 40 200 50 250

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

Data display

Setting information 1 Setting information 2

Setting information 1

Display Defrost mode

0 Standard 1 For high humidity

Setting information 2

Display

Single-/ Heat pump/

3-phase

cooling only

Single-phase

Heat pump

Cooling only

3-phase

Heat pump

Cooling only

Setting content

Display Setting value

Setting

SW7-1 SW7-2 0 1 50%

2 75% ON

3 100%

OCH566A

100

SW1, SW2, SW6, SW7

123456 000000 00 00

100000 00 01 010000 00 02 110000 00 03 001000 00 04 101000 00 05 011000 00 06 111000 00 07 000100 00 08 100100 00 09 010100 00 0A 110100 00 0b 001100 00 0C 101100 00 0d 011100 00 0E 111100 00 0F 000010 00 10 100010 010010 110010 001010 101010 011010 111010 000110 100110 010110 110110 001110 101110 011110 11111 0 000001 100001 010001 110001 001001 101001 011001 111001 000101 100101 010101 110101 001101 101101 011101 111101 000011 100011 010011 110011 001011 101011 011011 111011 000111 100111 010111 110111 001111 101111 011111 11111 1

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

0: Switch OFF 1: Switch ON

Data display

SW5

1234 0000 00 00

1000 00 01 0100 00 02 1100 00 03 0010 00 04 1010 00 05 0110 00 06 1110 00 07 0001 00 08 1001 00 09 0101 00 0A 1101 00 0b 0011 00 0C 1011 00 0d 0111 00 0E 1111 00 0F

0: Switch OFF 1: Switch ON

Data display

SW8

123 000 00 00

100 00 01 010 00 02 110 00 03 001 00 04 101 00 05 011 00 06 111 00 07

0: Switch OFF 1: Switch ON

Data display

SW4, SW9, SW10

12 0 0 00 00

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

0: Switch OFF 1: Switch ON

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

OCH566A

Mitsubishi PUHZ-SP140VHA, PUHZ-SP140YHA, PUHZ-SP125VHA, PUHZ-SP125YHA, PUHZ-SP100VHA.UK Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual