Mitsubishi PUHZ-RP 1.6VHA, PUHZ-RP 2VHA, PUHZ-RP 2.5VHA, PUHZ-RP 3VHA, PUHZ-RP 4VHA Service Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

R410A

Outdoor unit [model names]

PUHZ-RP1.6VHA PUHZ-RP2VHA PUHZ-RP2.5VHA

PUHZ-RP3VHA

PUHZ-RP4VHA

PUHZ-RP5VHA

PUHZ-RP6VHA

PUHZ-RP4YHA PUHZ-RP5YHA PUHZ-RP6YHA

[Service Ref.]

PUHZ-RP1.6VHA PUHZ-RP2VHA PUHZ-RP2.5VHA PUHZ-RP2.5VHA PUHZ-RP3VHA PUHZ-RP3VHA

1

PUHZ-RP4VHA PUHZ-RP4VHA

1

PUHZ-RP5VHA PUHZ-RP5VHA

1

PUHZ-RP6VHA PUHZ-RP6VHA

1

PUHZ-RP4YHA PUHZ-RP5YHA PUHZ-RP6YHA

1

2004

No.OC294

REVISED-EDITION-D

Revision:

• PUHZ-RP4YHA, PUHZ-RP5YHA, PUHZ-RP6YHA are added in REVISED EDITION-D.

• Some descriptions have been modified.

• Please void OC294 REVISED

EDITION-C.

PUHZ-RP2.5VHA PUHZ-RP3VHA

Model name indication

CONTENTS

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

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

3.

COMBINATION OF INDOOR AND OUTDOOR UNITS

4. PART NAMES AND FUNCTIONS··················7

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

6. DATA·····························································12

7. OUTLINES AND DIMENSIONS····················14

8. WIRING DIAGRAM·······································17

9. WIRING SPECIFICATIONS··························20

10.

REFRIGERANT SYSTEM DIAGRAM

11. TROUBLESHOOTING···································28

12. DISASSEMBLY PROCEDURE ·····················81

13. PARTS LIST················································108

14. OPTIONAL PARTS························Back Cover

··············22

···7

1 TECHNICAL CHANGES

PUHZ-RP4VHA ➞ PUHZ-RP4VHA1

PUHZ-RP5VHA ➞ PUHZ-RP5VHA1 PUHZ-RP6VHA ➞ PUHZ-RP6VHA1

1. Reduced Design Pressure: Design Pressure has been changed from 4.41MPa to 4.15MPa. (High Pressure Switch has been changed.)

2. Partial Change on Refrigerant Circuit: Only 1 distributor is adopted on the Heat Exchanger. (Previously 2)

3. Partial Change on Electrical Wiring: Change of reactor (DCL). Only 1 reactor (DCL) is adopted. (Previously 2)

4. New Service Parts as a result of the structural improvement:

• Power Receiver

• Separator

• Rubber Mount (for a Compressor)

• Thermistor (2 phase pipe, Outdoor temperature)

• Thermistor (Discharge)

• Linear Expansion Valve Coil

5. Reduced Refrigerant Amount The Charged Refrigerant Amount has been reduced from 5.5kg to 5.0kg

6. Wider Operation Range:

A change is made on the Minimum Capacity. (For details, please refer to the Service Manual for indoor units.)

PUHZ-RP2.5VHA ➞ PUHZ-RP2.5VHA1 PUHZ-RP3VHA ➞ PUHZ-RP3VHA1

1. The parts below have been changed.

• Thermistor (Outdoor pipe / TH3)

• Linear expansion valve coil

2. The refrigerant circuit has been changed.

• High pressure switch (4.41MPa

• Charge plug

➞ 4.14MPa)

2

2 SAFETY PRECAUTION

Use new refrigerant pipes.

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

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

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

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

· For RP4, 5 and 6, be sure to perform replacement opera tion before test run.

· 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.

Keep the tools with care.

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

If large amount of mineral oil enter, 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.

2-1. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R410A

[1] Cautions for service

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

Be sure to use a filter drier for new refrigerant.

[2] Additional refrigerant charge

When charging directly from cylinder

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

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

3

Unit

Gravimeter

[3] Service tools

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

No. Specifications

1 Gauge manifold ·Only for R410A

·Use the existing fitting

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

2 Charge hose ·Only for R410A

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

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

8 Refrigerant recovery equipment

specifications

Cylinder with syphon

. (UNF1/2)

4

2-2. CHANGED POINT

Connecting a new air conditioner

1Flaring work should be done so that flare meets the dimension for R410A. Use flare nut provided with indoor and outdoor unit.

2When using gas piping of [19.05mm for RP4, 5 or 6. Make sure that DIP SW8-1 on outdoor unit controller board is set to ON. WThis is to keep the pressure on pipes within permissible range.

●Use different diameter joint or adjust the piping size by brazing. 3When using pipes larger than specified size for RP1.6, 2, 2.5 or 3.

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

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

●Use different diameter joint or adjust the piping size by brazing. 4When existing pipes are specified size.

The pipes can be reused referring to table 1 on page 18.

●Use different diameter joint or adjust the piping size by brazing. ★When using existing pipes for RP4, 5 and 6.

Make sure that DIP SW8-2 on outdoor unit controller board is set to ON and perform replacement operation. wChemical compounds containing chlorine left in existing pipes are collected by rep lace filter.

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

Measure the existing pipe thickness and check for damage.

Check if existing air conditioner can operate.

Existing air conditioner can operate.

Disconnect existing air conditioner from piping.

Existing pipes can be reused.

In case the unit is RP1.6, 2,

2.5 ro 3 which utilizes AB oil.

In case the unit is RP4, 5 or 6 which utilize ester oil.

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

Use a refrigerant recovery equipment to collect the refrigerant.

Check the oil condition when collecting the refrigerant.

Disconnect existing air conditioner from pipes and clean pipes using cleaning device.

Existing air conditioner cannot operate.

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

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

Oil is clean.

Connect a new air conditioner. Connect a new air conditioner.

Perform replacement operation.

Oil is dirty.

Attach a filter drier.

When the compressor bearings are glazed, rotation scratches are present, or the compressor breaks down, iron particles or oil deterioration will blacken the oil.

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

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

Existing pipes cannot be reused. Use new pipes.

• Precautions when reusing existing R22 refrigerant pipes (1) Flowchart

5

(2) Cautions for refrigerant piping work

1/4” 3/8” 1/2” 5/8” 3/4”

6.35

9.52

12.70

15.88

19.05

0.8

1.0

—

0.8

1.0

Nominal

dimensions

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

Flare cutting dimensions

Outside

diameter

Dimension A

( )

+0

-0.4

(mm)

R410A R22 1/4” 3/8” 1/2” 5/8” 3/4”

6.35

9.52

12.70

15.88

19.05

17.0

22.0

26.0

29.0

—

17.0

22.0

24.0

27.0

36.0

Nominal

dimensions

Flare nut dimensions

Outside

diameter

Dimension B

(mm)

R410A

w

w36.0mm for

indoor unit of RP4, 5 and 6

R22

Gauge manifold Charge hose Gas leak detector

Refrigerant recovery equipment Refrigerant cylinder Applied oil

Safety charger

Charge valve Vacuum pump

Flare tool

Bender Pipe cutter Welder and nitrogen gas cylinder Refrigerant charging scale

Vacuum gauge or thermistor vacuum gauge and vacuum valve Charging cylinder

Air purge and refrigerant charge Operation check and the two above Gas leak check Collection of refrigerant Refrigerant charge Apply to flared section

Prevent compressor malfunction when charging refrigerant by

spraying liquid refrigerant Prevent gas from blowing out

when detaching charge hose Vacuum drying and air purge

Flaring work of piping

Bend the pipes Cut the pipes Weld the pipes Charge refrigerant Check the degree of vacuum. (Vacuum

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

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

Tool exclusive for R410A Tools for other refrigerants can

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

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

Tool exclusive for R410A

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

(Usable if equipped

with adopter for rever se flow)

(Usable by adjusting flaring dimension)

Can R407C tools be used?

Ester oil: Alkylbenzene oil: minimum amount

(Usable if equipped

with adopter for rever se flow)

(Usable by adjusting

flaring dimension)

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

New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410Ais same as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure of R410A is 1.6 time higher than that of R22, their sizes of flared sections and flare nuts are different.

1Thickness of pipes

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

2Dimensions of flare cutting and flare nut

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

Use torque wrench corresponding to each dimension.

Dimension A

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

6

Dimension B

3 COMBINATION OF INDOOR AND OUTDOOR UNITS

Heat pump type

Outdoor unit

PUHZ-RP

PEAD-RP·EA.UK PEAD-RP·EA1.UK

PLA-RP·AA.UK PLA-RP·AA1.UK

PEAD-RP·GA.UK PLA-RP·AA

PLA-RP·AA1

—

OC293 REVISED EDITION-B

OC297 REVISED EDITION-D

PKA-RP·GAL

OC301 REVISED EDITION-A

PKA-RP·FAL

OC305

PCA-RP·GA

OC311

Indoor unit

Service

Manual No.

Service Ref.

4 5

Heat pump

without

electric heater

VHA

1

VHA

VHA1

YHA

VHA

VHA1

YHA

VHA

VHA1

YHA

6

3

2 2.5

VHA VHA VHA

VHA

1

1.6

— —

—

— ———

———

4 PART NAMES AND FUNCTIONS

CHARGELESS SYSTEM PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT. (Max.30m(PUHZ-RP1.6~RP6))

PUHZ-RP1.6VHA PUHZ-RP2VHA

PUHZ-RP2.5VHA PUHZ-RP2.5VHA1 PUHZ-RP3VHA PUHZ-RP3VHA1

PUHZ-RP4VHA PUHZ-RP4VHA1 PUHZ-RP5VHA PUHZ-RP5VHA1 PUHZ-RP6VHA PUHZ-RP6VHA1 PUHZ-RP4YHA PUHZ-RP5YHA PUHZ-RP6YHA

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

7

5 SPECIFICATIONS

Service Ref.

Function

Power supply (phase, cycle, voltage) External finish

Refrigerant control Compressor

Crankcase heater Heat exchanger Fan Fan(drive) o No.

OUTDOOR UNIT

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D. Connection method Between the indoor &

outdoor unit

REFRIGERANT PIPING

Running current

Model Motor output Starter type Protection devices

Fan motor output Airflow

Charge Oil (Model)

K

/min(CFM

Cooling Heating

W

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

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

kg(lbs) kg(lbs)

mm(in.) mm(in.)

A

kW

W

kW

dB dB

L

PUHZ-RP1.6VHA PUHZ-RP2VHA

Cooling

4.01

HP switch

Discharge thermo

)

Heating

Single, 50Hz, 220/230/240V

4.23 Munsell 3Y 7.8/1.1

Linear Expansion Valve

SNB130FLBH

0.8

Plate fin coil

Propeller fan o 1

Reverse cycle

800(31-1/2)

330+23(11-13/16+7/8)

600(23-5/8)

0.45(NEO22)

Hermetic

Line start

—

0.043

35(1,240)

44 46

45(99)

R410A

2.5(5.5)

6.35(1/4)

12.7(1/2) Flared Flared

Max. 30m Max. 50m

Cooling

6.16

Discharge thermo

Heating

6.47

1.1

HP switch

Notes1.Rating Conditions (ISO5151/13253 T1)

Cooling : Indoor : D.B. 27˚C(80˚F), W.B. 19˚C(66˚F) Outdoor : D.B. 35˚C(95˚F), W.B. 24˚C(75˚F) Heating : Indoor : D.B. 20˚C(68˚F) Outdoor : D.B. 7˚C(45˚F), W.B. 6˚C(43˚F) Refrigerant piping length (one way) : 5m (16ft)

2. Guaranteed operating range Indoor

Cooling

Heating

3. Guaranteed voltage 198~264V, 50Hz

4. Above data based on indicated voltage

5. Refer to the service manual of indoor unit for tha indoor unit's specifications.

Upper limit Lower limit Upper limit Lower limit

Indoor Unit 1 phase 230V 50Hz Outdoor Unit 1 phase 230V 50Hz

D.B. 35˚C, W.B. 22.5˚C

D.B. 19˚C, W.B. 15˚C

D.B. 28˚C D.B. 17˚C

Outdoor

D.B. 46˚C

D.B. -5˚C D.B. 21˚C, W.B. 15˚C D.B. -11˚C, W.B. -12˚C

8

Service Ref.

Function

Power supply (phase, cycle, voltage)

Running 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

OUTDOOR UNIT

Defrost method Noise level

Dimensions

Weight Refrigerant

Charge

Oil (Model) Pipe size O.D.

Connection method Between the indoor &

outdoor unit

REFRIGERANT PIPING

K

/min(CFM

Cooling Heating

W

D H

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

kg(lbs)

Liquid

Gas

mm(in.)

mm(in.) Indoor side Outdoor side Height difference Piping length

A

kW

W

kW

dB dB

L

PUHZ-RP2.5VHA PUHZ-RP2.5VHA

Cooling

6.61

)

1

Heating

Single, 50Hz, 220/230/240V

7.50 Linear Expansion Valve

TNB220FMBH

HP switch

Discharge thermo

Propeller fan o 1

0.060

55(1,940)

47 48

943(37-1/8)

75(165)

3.5(7.7)

0.87(NEO22)

Max. 50m

PUHZ-RP3VHA PUHZ-RP3VHA

Cooling

8.04

Heating

9.74

Munsell 3Y 7.8/1.1

Hermetic

1.61.4

Line start

—

Plate fin coil

Reverse cycle

950(37-3/8)

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

R410A

9.52(3/8)

15.88(5/8) Flared Flared

Max. 30m

1

PUHZ-RP4VHA PUHZ-RP4VHA

Cooling

12.33

1

Heating

13.94

ANV33FDAMT

1.9

HP switch LP switch

Discharge thermo

Propeller fan o 2

0.060+0.060 100(3,530)

49 51

1,350(53-1/8)

121(267)

5.5(12.1)·····RP4VHA

5.0(11.0)·····RP4VHA

1

1.40(MEL56)

Max. 75m

Notes1.Rating Conditions (ISO5151/13253 T1)

Cooling : Indoor : D.B. 27˚C(80˚F), W.B. 19˚C(66˚F) Outdoor : D.B. 35˚C(95˚F), W.B. 24˚C(75˚F) Heating : Indoor : D.B. 20˚C(68˚F) Outdoor : D.B. 7˚C(45˚F), W.B. 6˚C(43˚F) Refrigerant piping length (one way) : 5m (16ft)

2. Guaranteed operating range Outdoor

D.B. 46˚C

D.B. -5˚C D.B. 21˚C, W.B. 15˚C D.B. -11˚C, W.B. -12˚C

Cooling

Heating

Upper limit Lower limit Upper limit Lower limit

Indoor

D.B. 35˚C, W.B. 22.5˚C

D.B. 19˚C, W.B. 15˚C

D.B. 28˚C D.B. 17˚C

3. Guaranteed voltage 360~440V, 50Hz

4. Above data based on indicated voltage Indoor Unit 1 phase 230V 50Hz Outdoor Unit 1 phase 230V 50Hz

5. Refer to the service manual of indoor unit for tha indoor unit's specifications.

9

Service Ref.

Function

Power supply (phase, cycle, voltage)

Running 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

OUTDOOR UNIT

Noise level Dimensions

Weight Refrigerant

Charge

Oil (Model) Pipe size O.D.

Connection method Between the indoor &

outdoor unit

REFRIGERANT PIPING

/min(CFM

K

Cooling Heating

W

D H

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

kg(lbs)

Liquid

Gas

mm(in.)

mm(in.) Indoor side Outdoor side Height difference Piping length

A

kW

W

kW

dB dB

L

PUHZ-RP5VHA PUHZ-RP5VHA

Cooling

1

Heating

PUHZ-RP6VHA PUHZ-RP6VHA

Cooling

1

Heating

Single, 50Hz, 220/230/240V

15.80

17.50

20.73

20.37

Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

ANV33FDAMT

2.4

2.9

Line start

HP switch, LP switch, Discharge thermo

—

Plate fin coil

Propeller fan o 2

0.060 +0.060

)

100(3,530)

Reverse cycle

50 52

950(37-3/8)

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

1,350(53-1/8)

121(267)

R410A

5.5(12.1)·····RP5, 6VHA

5.0(11.0)·····RP5, 6VHA

1

1.40(MEL56)

9.52(3/8)

15.88(5/8) Flared Flared

Max. 30m Max. 75m

Notes1.Rating Conditions (ISO5151/13253 T1)

Cooling : Indoor : D.B. 27˚C(80˚F), W.B. 19˚C(66˚F) Outdoor : D.B. 35˚C(95˚F), W.B. 24˚C(75˚F) Heating : Indoor : D.B. 20˚C(68˚F) Outdoor : D.B. 7˚C(45˚F), W.B. 6˚C(43˚F) Refrigerant piping length (one way) : 5m (16ft)

2. Guaranteed operating range

Cooling

Heating

Upper limit Lower limit Upper limit Lower limit

Indoor

D.B. 35˚C, W.B. 22.5˚C

D.B. 19˚C, W.B. 15˚C

D.B. 28˚C D.B. 17˚C

Outdoor

D.B. 46˚C

D.B. -5˚C D.B. 21˚C, W.B. 15˚C D.B. -11˚C, W.B. -12˚C

3. Guaranteed voltage 198~264V, 50Hz

4. Above data based on indicated voltage Indoor Unit 1 phase 230V 50Hz Outdoor Unit 1 phase 230V 50Hz

5. Refer to the service manual of indoor unit for tha indoor unit's specifications.

10

Service Ref.

Function

Power supply (phase, cycle, voltage) External finish

Refrigerant control Compressor

Crankcase heater Heat exchanger Fan Fan(drive) o No.

OUTDOOR UNIT

Defrost method Noise level

Dimensions

Weight Refrigerant

Pipe size O.D. Connection method Between the indoor &

outdoor unit

REFRIGERANT PIPING

Running current

Model Motor output Starter type Protection devices

Fan motor output Airflow

Charge Oil (Model)

K

/min(CFM

Cooling Heating

W

D H

Liquid

Gas Indoor side Outdoor side Height difference Piping length

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

kg(lbs)

mm(in.) mm(in.)

A

kW

W

kW

dB dB

L

Cooling

)

PUHZ-RP4YHA

Heating

3.79

49 51

4.33

Cooling 3phase, 50Hz, 400V

4.85

Munsell 3Y 7.8/1.1

Linear Expansion Valve

ANV33FDBMT

Discharge thermo

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)

1.40(MEL56)

Hermetic

2.41.9

Line start

HP switch

LP switch

—

135(298)

R410A

5.0(11.0)

9.52(3/8)

15.88(5/8) Flared Flared

Max. 30m Max. 75m

Heating

5.41

50 52

PUHZ-RP6YHAPUHZ-RP5YHA

Cooling

6.49

Heating

6.37

2.9

Notes1.Rating Conditions (ISO5151/13253 T1)

Cooling : Indoor : D.B. 27˚C(80˚F), W.B. 19˚C(66˚F) Outdoor : D.B. 35˚C(95˚F), W.B. 24˚C(75˚F) Heating : Indoor : D.B. 20˚C(68˚F) Outdoor : D.B. 7˚C(45˚F), W.B. 6˚C(43˚F) Refrigerant piping length (one way) : 5m (16ft)

2. Guaranteed operating range Indoor

Cooling

Heating

3. Guaranteed voltage

342~456V, 50Hz

4. Above data based on indicated voltage

5. Refer to the service manual of indoor unit for tha indoor unit's specifications.

Upper limit Lower limit Upper limit Lower limit

Indoor Unit 1 phase 230V 50Hz Outdoor Unit 3 phase 400V 50Hz

D.B. 35˚C, W.B. 22.5˚C

D.B. 19˚C, W.B. 15˚C

D.B. 28˚C D.B. 17˚C

Outdoor

D.B. 46˚C

D.B. -5˚C D.B. 21˚C, W.B. 15˚C D.B. -11˚C, W.B. -12˚C

11

6 DATA

Piping length (one way)

10m

20m

30m

40m

50m

Factory charged

2.1

3.1

5.1

4.6

2.3

3.3

5.3

4.8

2.5

3.5

5.5

5.0

2.7

4.1

6.1

5.6

2.9

4.7

6.7

6.2

60m

— — — —

7.3

6.8

75m

— — — —

7.9

7.4

2.5

3.5

5.5

5.0

Service Ref.

PUHZ-RP4VHA PUHZ-RP5VHA

PUHZ-RP1.6VHA PUHZ-RP2VHA

PUHZ-RP2.5VHA PUHZ-RP2.5VHA

1

PUHZ-RP3VHA PUHZ-RP3VHA

1

PUHZ-RP4VHA1 PUHZ-RP4YHA

PUHZ-RP5VHA

1

PUHZ-RP5YHA PUHZ-RP6VHA1

PUHZ-RP6YHA

PUHZ-RP6VHA

U-V

U-W

W-V

Unit

Compressor model

Winding

Resistance

( " )

ANV33FDAMT

(at 20°C)

0.266

SNB130FLBH

0.300 ~ 0.340

PUHZ-RP4,5,6VHA

ANV33FDBMT

1.064

PUHZ-RP4,5,6YHA

PUHZ-RP1.6,2VHA

TNB220FMBH

0.865 ~ 0.895

PUHZ-RP2.5,3VHA

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

6-2. COMPRESSOR TECHNICAL DATA

Longer pipe than 30m, additional charge is required.

12

6-3. NOISE CRITERION CURVES

90

80

70

60

50

40

30

20

10

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-RP4VHA, VHA1 PUHZ-RP4YHA

COOLING

MODE

HEATING

49

SPL(dB)

51

LINE

90

80

70

60

50

40

30

20

10

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-RP5VHA, VHA1 PUHZ-RP6VHA, VHA1 PUHZ-RP5YHA PUHZ-RP6YHA

COOLING

MODE

HEATING

50

SPL(dB)

52

LINE

90

80

70

60

50

40

30

20

10

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-RP1.6VHA PUHZ-RP2VHA

COOLING

MODE

HEATING

44

SPL(dB)

46

LINE

MICROPHONE

1m

1.5m

UNIT

GROUND

PUHZ-RP2.5VHA, VHA1 PUHZ-RP3VHA, VHA1

90

80

MODE

COOLING

HEATING

SPL(dB)

47 48

LINE

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

70

60

50

40

30

APPROXIMATE

20

THRESHOLD OF HEARING FOR CONTINUOUS NOISE

10

63 125 250 500 1000 2000 4000 8000

BAND CENTER FREQUENCIES, Hz

NC-70

NC-60

NC-50

NC-40

NC-30

NC-20

13

7 OUTLINES AND DIMENSIONS

Service panel for charge plug

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

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

Minimum installation space for outdoor unit

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

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

w 2

w 1

100 mm or more

500 mm or more

Basically open

100 mm or more

Free space around the outdoor unit (basic example)

350 mm or more

w 1

Air intake

Air discharge

Air intake

Connection for gas pipe

Service port

Connection for liquid pipe

Service panel

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

[33 drain hole

43.6

152

155

400

347.5

45.4

365

330

300

40

Handle for moving

600

10

300

150

287.5 Installation bolt pitch: 500

800

69

35

43

183

90

155

23

32.5

18

1. FOUNDATION BOLTS

2. PIPING-WIRING DIRECTION

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

3. ATTACHING THE CONDUIT

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

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

18 or below

40

20

60

80

w Conduit hole

w The position and the size of

conduit hole depend on the conduit to be used.

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

FOUNDATION

PUHZ-RP1.6VHA PUHZ-RP2VHA

Unit : mm15Unit : mm

14

PUHZ-RP2.5VHA

Over 10mm

FRE

E

Over 500mm

Over 100mm

Over 10mm

PUHZ-RP2.5VHA1 PUHZ-RP3VHA PUHZ-RP3VHA1

2

1

Handle for moving

Service panel

Handle for moving

Rear Air Intake

Air intake

Rear piping cover

Front piping cover

Side Air Intake

Handle for moving

Piping Knock-Out Hole Details

Example of Notes

• • •

Refrigerant GAS pipe connction (FLARE)[15.88 (5/8F)

• • •

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

w1

• • •

Indication of STOP VALVE connection location.

1

2

Side Air Intake

Rear Air Intake

Air Discharge

600175 175

37028 19

45

5653

66

42

417

330

Installation Feet

2-12o36 Oval holes

(Foundation Bolt M10)

2-U Shaped notched holes

(Foundation Bolt M10)

30

637323

5527

92

65

4045

Power supply wiring hole

(2-[27Knock-Out)

Rear trunking hole

(Knock-Out)

Rear piping hole

(Knock-Out)

[92

922723

6373

4075

92

5519

Power supply wiring hole

(2-[27Knock-Out)

Right trunking hole

(Knock-Out)

Right piping hole

(Knock-Out)

[92

637323

5527

40 45

65

92

Power supply wiring hole

(2-[27Knock-Out)

Front trunking hole

(Knock-Out)

Front piping hole

(Knock-Out)

[92

81 219

14514522030 145

71

Drain hole

(5-[33)

Bottom piping hole

(Knock-Out)

A

322

635371

w1 443

w1 447

950

23

1350

Handle for moving

Earth terminal

Terminal connection

Left • • • Power supply wiring

Right • • Indoor/Outdoor wiring

A

1,076

930

RP·VHA

1

RP·YHA

PUHZ-RP4VHA PUHZ-RP4YHA

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)

Please secure the unit firmly

with 4 foundation (M10) bolts.

(Bolts and washers must be

purchased locally.)

Dimensions of space needed

for service access are

shown in the below diagram.

The diagram below shows a

basic example.

Explantion of particular details are

given in the installation manuals etc.

FREE

Over 10mm

Over 150mm

30

FOUNDATION

10

500

100

Service space

PUHZ-RP4VHA

1 PUHZ-RP5YHA

PUHZ-RP5VHA PUHZ-RP6YHA PUHZ-RP5VHA

1

PUHZ-RP6VHA PUHZ-RP6VHA

1

Unit : mm

16

8 WIRING DIAGRAM

MODELS

SW6

W1 MODEL SELECT

1.6V

2V

MODELS

SW6

2.5V

3V

1

ON

OFF

2 3 4 5 6

1

ON

OFF

2 3 4 5 6

1

ON

OFF

2 3 4 5 6

1

ON

OFF

2 3 4 5 6

PUHZ-RP1.6VHA PUHZ-RP2VHA PUHZ-RP2.5VHA PUHZ-RP2.5VHA1 PUHZ-RP3VHA PUHZ-RP3VHA1

W1

W2 Only PUHZ-RP2.5, 3VHA.

W2

17

PUHZ-RP4VHA

MODELS

SW6

W1 MODEL SELECT

4V

5V

6V

1

ON

OFF

2 3 4 5 6

1

ON

OFF

2 3 4 5 6

1

ON

OFF

2 3 4 5 6

PUHZ-RP4VHA1 PUHZ-RP5VHA PUHZ-RP5VHA1 PUHZ-RP6VHA PUHZ-RP6VHA1

W1

Only PUHZ-RP4VHA1

PUHZ-RP5VHA1 PUHZ-RP6VHA1

18

PUHZ-RP4YHA

TB1 MC

MF1,MF2 21S4

63H 63L TH3 TH4 TH6 TH7 LEV ACL1~ACL4

Terminal Block <Power Supply >

TB7 Terminal Block <M-NET connection > CN5 Connector <Transmission> CND Connector <Power Supply> CN2M Connector <M-NET communication> SW1 Switch <Status of communication> SW11 Switch <Address setting: 1st digit>

SW12 Switch <Address setting. 2nd digit > LED1 LED <Power Supply: DC5V> LED2 LED <Connection to Outdoor Unit> LED3 LED <Transmission: Sending> LED4 LED <Transmission: Receiving> LED5 LED <Power Supply: DC12V>

TB2 Terminal Block <Indoor/Outdoor >

Motor for Compressor Fan Motor

Solenoid Valve (Four-Way Valve)

High Pressure Switch

SV Solenoid Valve (Bypass Valve)

Low Pressure Switch

Thermistor <Outdoor Pipe>

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

Reactor

RS

Rush Current Protect Resistor

CB1,CB2

Main Smoothing Capacitor

CK

Capacitor Power Circuit Board

Connection Terminal <U/V/W-Phase>

Connector

P.B.

TB-U/V/W

Noise Filter Circuit Board Connection Terminal <L1/L2/L3/N-Power Supply>

N.F.

LI1/LI2/LI3/NI

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

LO1/LO2/LO3/NO

Controller Circuit Board

Switch <Pump Down> Connector <Emergency Operation>

Switch <Function Switch>

SW8

SWP CN31

C.B.

CN2

CNAC1

ConnectorCNAC2 ConnectorCNCT ConnectorCNDC

ConnectorN-IN ConnectorCK-OU ConnectorCN7

ConnectorCNL Connection Terminal <Ground>GD1

Connection Terminal <L1-Power Supply>L1-A1/IN

SYMBOL

M-NET ADAPTER

NAME SYMBOL

NAME

SYMBOL NAME

Connection Terminal

TB-P2

Connection Terminal

TB-C1

Connection Terminal

TB-N1

ConnectorCN4 ConnectorCN5 ConnectorCN7

Current Trans

CT1, CT2

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

TB-L1/L2/L3

Switch <Function Switch>

SW9

Switch <Model Select>

SW10

Connection Terminal <L1-Power Supply>L1-A2/OU Connection Terminal <L2-Power Supply>L2-A2/OU Connection Terminal <L3-Power Supply>L3-A2/OU

Converter Circuit Board

CONV.B

FUSE <6.3 A> Switch

<Forced Defrost, Defect History Record

Reset, Refrigerant Adress>

Switch <Function Switch> Switch <Function Switch>

F1,F2 SW1

SW5

Switch <Model Select>

SW6 SW7

FUSE <6.3 A>

F3,F4

Switch <Test Operation>

SW4

CNAC CNDC

CNS

Connector Connector

Connector

CN2

Connector

CN4

Connector

LEV-A/LEV-B

Connector <LEV>

63H

Connector <High Pressure Switch>

63L

Connector <Low Pressure Switch>

TH3

Connector <Thermistor>

TH4

Connector <Thermistor>

TH7/6

Connector <Thermistor>

CNF1/CNF2

Connector <Fan Motor Operation>

LED1/LED2

LED <Operatiion Inspection Indicators>

21S4

Connector <Four-Way Valve>

CNM

SV2

CNMNT

CNVMNT

Connector <A-Control Service Inspection Kit>

Connector <Bypass Valve>

Connector <Connect to Optional M-NET Adapter Board>

CN3S

Connector < Connection for Option>

CNDM

Connector < Connection for Option>

CN51

Connector < Connection for Option>

SS

Connector <Connection for Option>

LEV-A (WHT)

LEV

4 56321

31

321

3

321

3 1

31

2121

21

13

LEV-B (RED)

LEV

4 56321

CNVMNT

(WHT)

CN4

(WHT)

CNMNT

(WHT)

CNM

CN3S

(WHT)

CNDM

(WHT)

CN51

(WHT)

321

321321

4 5321

CN5

(WHT)

1 23

LED2

SW1

SW11

SW12

LED3 LED4

TB7

LED1

LED5

4 5321

21

CND

(WHT)

CN2M

(WHT)

M-NET

A B S

M-NET ADAPTER (OPTION)

SW7

SW6

SW1

SW9

SW4

SW10

SWP SW5SW8

CN31

w1

1110 121314

65 7 8 91 2 3 4

65 71 2 3 4

1 2 3 4

2 1

LED1

LED2

TH7/6 (RED)

CN3N

63L

(RED)

63H

(YLW)

TH3

(WHT)

CNS

(WHT)

13

21S4

(GRN)

TH4

(WHT)

TH7 TH6 TH3 TH4

63H 63L

4321 21 21

4 5671

MF1

TRANS

MF2

CNF1

(WHT)

CNF2

(WHT)

13

CNDC (PNK)

CN2

(WHT)

CNAC (WHT)

21S4

13

SV2

(BLU)

X55

X51

X52

13

SS

(WHT)

SV

+

-

+

ACL1

ACL2

ACL3

ACL4

CN7

(WHT)

CN2

(WHT)

CT2

TB-P2

CB1 CB2 CK

TB-C1

L3-OU

L2-OU

L1-OU

L3-A2

L2-A2

L1-A2

L1-A1

L1-IN

N-IN

CK-OU

TB-N1

TB-W

BLK WHT RED

BLK

BLU

WHT

RED

BLK

BLU

WHT

RED

TB-V

TB-U

TB-L3 TB-L2 TB-L1

CT1

W

V

U

MC

CN4

(WHT)

RED

ORN

CNAC1 (WHT)

CN7

(WHT)

CN5

(RED)

CNCT (RED)

CNAC2

(RED)

CNL

(BLU)

31

CNDC (PNK)

RS

P.B.

C.B.

N.F.

CONV.B.

LO1

GD1

GD2

LO2

LO3

NO

LI1

LI2

LI3

NI

L1

L2

L3

N

TB1

NO FUSE BREAKER

TB2

S1 S2 S3

POWER SUPPLY 3N~ 400V 50Hz

INDOOR UNIT

12

F2

F5

F1

F3

F4

31

MODELS

RP4Y

SW6 SW10

RP5Y

RP6Y

ON

OFF

123456

ON

OFF

12

ON

OFF

12

ON

OFF

12

ON

OFF

123456

ON

OFF

123456

PUHZ-RP5YHA PUHZ-RP6YHA

19

9 WIRING SPECIFICATIONS

Indoor unit – Outdoor unit wiring for PUHZ-RP1.6-6VHA and PUHZ-RP1.6-6VHA1

The cable shall not be lighter than design 245 IEC or 227 IEC. The cable length may vary depending on the condition of installation, humidity or materials, etc.

Cross section

of cable

Wire size

2

)

(mm

Number

of wires

Polarity L(m) ✽5

Round

2.5

3

Clockwise : S1-S2-S3

Flat

2.5

3

Not applicable (Because center wire has no cover finish)

Flat

1.5

4

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

Round

2.5

4

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

✽1 : In case that cable with stripe of yellow and green is available. ✽2 : In the flat cables are connected as this picture, they can be used up to 30m.

(30)

✽1

Not

applicable

✽2

(18)

✽3

30

✽4

(3C Flat cable ✕ 2)

S1 S2 S3

2

✽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.

Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections). Intermediate connections can lead to communication errors if water enters the cables and causes insufficient insulation to ground or a poor electrical contact at the intermediate connection point. (If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)

20

Indoor unit – Outdoor unit wiring for PUHZ-RP4, 5, 6YHA

The cable shall not be lighter than design 245 IEC or 227 IEC.

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

Indoor unit-Outdoor unit

Max. 45m

3 o 1.5 (polar)

1 o Min. 1.5

If 1.5E used, Max. 45m. If 2.5E used, Max. 50m. If 2.5E used and S3 separated, Max. 80m.

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 ground or a poor electrical contact at the intermediate connection point. (If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)

For 4, 5, 6Y application, use shield wire. (For EMC DIRECTIVE) The shield part must be grounded with the indoor unit or the outdoor unit, not with both.

When the shield line is not used, several dB is exceeded with 30 ~ 40 MHz . (There is a possibility to be used by the wireless for the ship etc. though it is not used for radio and TV.)

21

10 REFRIGERANT SYSTEM DIAGRAM

Distributor

Thermistor TH7 (Outdoor)

Heat exchanger

Refrigerant GAS pipe connection(5/8F)

Refrigerant LIQUID pipe connection(3/8F)

Stop valve (with service port)

Strainer #100

Power receiver

Linear expansion valve B

Linear expansion valve A

Strainer #100

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

Charge plug (Low pressure)

Charge plug (High pressure)

High pressure switch 63H

Bypass valve

Oil separator

Thermistor TH4 (Discharge)

Muffler

Strainer #50

4-way valve

Compressor

Ball valve

Capillary tube O.D.4.0OI.D.2.4OL500

Capillary tube O.D.2.5OI.D.0.6OL1000

Thermistor TH7 (Outdoor)

Heat exchanger

Refrigerant GAS pipe connection(1/2F)

Refrigerant LIQUID pipe connection(1/4F)

Stop valve

Strainer #100

Power receiver

Linear expansion valve B

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

Charge plug

High pressure switch 63H

Thermistor TH4 (Discharge)

Compressor

Strainer #50

Solenoid valve (Four-way valve)

Muffler

Distributor

Linear expansion valve A

Strainer #100

Muffler

Stop valve (with service port)

PUHZ-RP1.6VHA PUHZ-RP2VHA

PUHZ-RP2.5VHA PUHZ-RP2.5VHA1 PUHZ-RP3VHA PUHZ-RP3VHA1

22

PUHZ-RP4VHA

Distributor

Thermistor TH7 (Outdoor)

Heat exchanger

Refrigerant GAS pipe connection(5/8F)

Refrigerant LIQUID pipe connection(3/8F)

Stop valve (with service port)

Strainer #100

Power receiver

Linear expansion valve B

Linear expansion valve A

Strainer #100

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

Charge plug (Low pressure)

Charge plug (High pressure)

High pressure switch 63H

Replace filter

Thermistor TH4 (Discharge)

Compressor

Strainer #50

Solenoid valve (Four-way valve)

Capillary tube (O.D.4.0OI.D.3.0OL200)O2pcs

Strainer #100

Low pressure switch 63L

Muffler

Ball valve

Restrictor valve

Solenoid valve (Bypass valve)

Distributor

Thermistor TH7 (Outdoor)

Heat exchanger

Refrigerant GAS pipe connection(5/8F)

Refrigerant LIQUID pipe connection(3/8F)

Stop valve (with service port)

Strainer #100

Power receiver

Linear expansion valve B

Linear expansion valve A

Strainer #100

Thermistor TH6 (Outdoor 2-phase pipe)

Thermistor TH3 (Outdoor pipe)

Charge plug (Low pressure)

Charge plug (High pressure)

High pressure switch 63H

Replace filter

Thermistor TH4 (Discharge)

Compressor

Strainer #50

Solenoid valve (Four-way valve)

Strainer #100

Low pressure switch 63L

Muffler

Ball valve

Restrictor valve

Solenoid valve (Bypass valve)

PUHZ-RP5VHA PUHZ-RP6VHA

PUHZ-RP4VHA1 PUHZ-RP4YHA PUHZ-RP5VHA PUHZ-RP6VHA

1 PUHZ-RP5YHA 1 PUHZ-RP6YHA

23

Applicable extension pipe for each model

15

30m or

above

31 — 40m

0.2kg

0.6Kg

0.6kg

10m or below

41 — 50m

0.4kg

1.2Kg

1.2kg

51 — 60m

— —

1.8kg

61 — 75m

— —

2.4kg

<Table 2> Additional refrigerant charging amount for pipe of standard diameter

Outdoor unit

Permitted

pipe length

Additional refrigerant charging amount for pipe

length exceeding 30 m (kg)

PUHZ-RP1.6, 2VHA PUHZ-RP2.5, 3VHA, 2.5, 3VHA

1

PUHZ-RP4-6VHA, RP4-6VHA1, RP4-6YHA

Outdoor unit

Number of

bends

Height

difference

50m or less 50m or less

75m or less

Permitted

pipe length

50m or less

75m or less

2.1

3.1

5.1

4.6

11 — 20m 21 — 30m

2.3

3.3

5.3

4.8

2.5

3.5

5.5

5.0

31 — 40m

2.7

(0.2)

4.1

(0.6)

6.1

(0.6)

5.6

(0.6)

2.9

(0.4)

4.7

(1.2)

6.7

(1.2)

6.2

(1.2)

— — — —

7.3

(1.8)

6.8

(1.8)

— — — —

7.9

(2.4)

7.4

(2.4)

41 — 50m 51 — 60m 61 — 75m

Recharge refrigerant amount or additional amount in parentheses

PUHZ-RP1.6, 2VHA

PUHZ-RP2.5, 3VHA PUHZ-RP2.5, 3VHA

1

PUHZ-RP4-6VHA

1

PUHZ-RP4-6YHA

Liquid

pipe

(mm)

Gas pipe

(mm)

[6.35

[9.52 [12.7

[9.52

OD

Thick-

ness

OD

Thick-

ness

RP1.6 RP2 RP2.5 RP3 RP4 RP5 RP6

t0.8

[12.7

t0.8

[15.88

t1.0

[12.7

t0.8

[15.88

t1.0

[19.05

t1.0

[15.88

t1.0

[19.05

t1.0

t0.8

: Standard piping : It can be used, however, additional refrigerant charge is required when the pipe length exceeds 20m. Refer to <table 4>. : It cannot be used. : It can be used. : It can be used, however, the capacity is lowered. Refer to (c) Capacity correction.

<Table 1> Pipe length for 1:1 system

*1: Set DIP SW8-1 on outdoor unit controller board to ON. *2: The maximum length is 50 m in case of using existing pipes.

[Marks in the table above]

50m

t0.8

30m 30m

10m 30m 30m

50m

30m

50m 50m

10m

50m

(*1)

75m

(*2)

50m

10m 30m 30m10m 50m

75m

(*2)

75m

(*2)

50m

(*1)

30m

(*1)

50m

(*1)

50m

(*1)

50m

(*1)

50m

(*1)

50m10m 30m 30m 30m

(*1)

Required additional charge when the pipe size is larger than the standard diameter

[9.52 [12.7 [12.7

RP1.6, 2 RP2.5, 3 RP4-6

Liquid pipe dia

Chargeless

30m 30m 50m

60 g per 1 m longer than 20 m 100 g per 1 m longer than 20 m 100 g per 1 m longer than 20 m

20m 20m 20m

Max. pipe length

Refrigerant amount to be added

The height difference between indoor and outdoor unit should be kept within 30 m for all models. (1) 1:1 system (a) Maximum pipe length

(b) Adjusting the amount of refrigerant

• Additional refrigerant charge is not necessary for the pipe length up to 30 m. When the pipe length exceeds 30 m or service

(refrigerant replacement) is performed, charge proper amount of refrigerant for each pipe length referring to table below. Use refrigerant R410A. Use charge hose exclusive for R410A.

• When charging additional refrigerant, charge the refrigerant from low-pressure side of the port valve using a safety charger.

• Make sure that air purge for this unit at refrigerant replacement is performed from both high-pressure check valve and ser-

vice port. If air purge is performed only from one of them, air in not purged enough.

• When replacing refrigerant, charge the refrigerant from service port. When charged refrigerant is less than specified amount, charge the refrigerant again from low pressure side of the port valve using a safety charger.

• Tighten the service port cap (nut) of stop valve firmly. The tightening torque is 12 to 16 N·m. (to prevent slow-leak)

• Check additional refrigerant charging amount referring to table 4 when liquid pipe is one size larger than standard diameter,

and table 2 when the pipe is standard diameter.

24

(c) Capacity correction

Cooling Heating

Cooling and heating capacity is lowered according to pipe length. Capacity can be obtained by referring to the capacity curves below. When the diameter of gas pipe is one size smaller than standard diameter, cooling capacity is lowered comparing to the standard diameter. The lowered capacity can be obtained by referring to capacity curves for gas pipe which is one size smaller than standard size.

Corrected pipe length (m) = actual pipe length (m) + number of bends x 0.3 (m)

11

Capacity curves for PUHZ-RP • HA model <Standard size>

100

95

90

85

80

Capacity ratio [%]

75

Note: The permitted pipe length is up to 55m for RP1.6, 2, 2.5, 3 model.

70

5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80

Corrected pipe length

22

Capacity curve for PUHZ-RP1.6, 2 models

100

Cooling RP1.6, 2.5 models Cooling RP3 model

Heating RP1.6, 2, 2.5, 3, 4, 5 and 6 models (Up to 55m for RP1.6, 2, 2.5, 3 model)

Cooling RP2, 4 models

Cooling RP5 model

Cooling RP6 model

Heating RP1.6, RP2

95

90

Cooling RP2

Capacity ratio [%]

85

Cooling RP1.6

80

5 10 15 20 25 30 35 40 45 50 55

Corrected pipe length

25

33

Capacity curve for PUHZ-RP2.5, 3 models

100

95

90

Capacity ratio [%]

85

80

5 10 15 20 25 30 35 40 45 50 55

Heating RP2.5, RP3

Cooling RP2.5

Cooling RP3

Corrected pipe length

44

When gas pipe is one size larger than standard size for PUHZ-RP4, 5 and 6.

1 Capacity can be obtained by referring to capacity curves of standard size.

26

1. Refrigerant collecting (pump down)

TEST RUN

OFF

1 2

ON

<SW4>

A B

C D

A Stop C operation B Cooling D Heating

Perform the following procedures to collect the refrigerant when moving the indoor unit or the outdoor unit. 1Before collecting the refrigerant, first make sure that the all of the SW5 DIP switches for function changes on the control

board of the outdoor unit are set to OFF. If all of the SW5 switches are not set to OFF, record the settings and then set all of the switches to OFF. Now, start refrigerant collecting operation. After moving the unit to a new location and completing the test run, set the SW5 switches to the previously recorded settings.

2Turn on the power supply (circuit breaker).

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

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

3After the liquid stop valve is closed, set the SWP switch on the control board of the outdoor unit to ON. The compressor

(outdoor unit) and ventilators (indoor and outdoor units) start operating and refrigerant collecting operation begins. LED1 and LED2 on the control board of the outdoor unit are lit. wSet the SWP switch (push-button type) to ON in order to perform refrigerant collecting operation only when the unit is

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

4Because the unit automatically stops in about two to three minutes after the refrigerant collecting operation (LED1 is not lit

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

repeat step 3 three minutes later.

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

stopped until the power supply is turned off.

5Turn off the power supply (circuit breaker.)

2. Unit replacement operation

When reusing the existing pipes that carried R22 refrigerant for the RP4, RP5 and RP6 models, replacement operation must be performed before performing a test run.

1If new pipes are used, these procedures are not necessary. 2If existing pipes that carried R22 refrigerant are used for the RP3 model, these procedures are not necessary. (The replace-

ment operation cannot be performed.)

3During replacement operation, “C5” is displayed on “A-Control Service Tool(PAC-SK52ST)”. (This is applied to only RP4,

RP5 and RP6 models.)

• Replacement operation procedures

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

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

• During the replacement operation, is displayed on the remote controller and LED1 (green) and LED2 (red) on the control board of the outdoor unit flash together.

3Replacement operation requires at least two hours to complete.

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

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

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

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

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

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

3. Start and finish of test run

• Operation from the indoor unit

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

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

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

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

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

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.)

27

11 TROUBLESHOOTING

Unit conditions at service

Error code

Actions to be taken for service (summary)

The inferior phenomenon is reoccurring.

Displayed

Not displayed

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

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

The inferior phenomenon 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 and etc. Re-check the symptom, and check the installation environment, refrigerant amount, weather when the inferior phenomenon occurred, matters related to wiring and etc. 2Reset error code logs and restart the unit after finishing service. 3There is no abnormality concerning of parts such as electrical component, controller board, remote controller and etc.

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

inferior phenomenon according to “11-5. Troubleshooting by inferior phenomena”. 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 and etc.

11-1. TROUBLESHOOTING

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

28

11-2. CHECK POINT UNDER TEST RUN

PAR-20MAA

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK

ON OFF

˚C

CHECK

CHECK MODE

FILTER

TEST RUN FUNCTION

˚C

1Hr.

NOT AVAILABLE

STAND BY DEFROST

FILTER

CHECK TEST

TEMP.

TIMER SET

TEST RUN button

TEST RUN display

LIQUID PIPE TEMPERATURE display

(MA remote controller)

(1) Before test run

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

age, loosened connections and incorrect polarity.

• Measure impedance between the ground and the power supply terminal block(L, N) on the outdoor unit by 500V Merger and check that it is 1.0M" or over.

wDon’t use 500V Merger 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.

• Make sure that all of the SW5 switches for function changes on the control board of the outdoor unit are set to OFF. If all of

the SW5 switches are not set to OFF, record the settings and then set all of the switches to OFF. And perform emergency operation. After finishing emergency operation, set the SW5 switches to the recorded settings.

• Turn on power supply twelve 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.)

11-2-1. Test run by remote controller

Operating procedures

1. Turn on the main power supply.

2. Press TEST RUN button twice.

3. Press OPERATION SWITCH button.

4. Press AIR DIRECTION button.

5. Check the outdoor unit fan for correct running.

While the room temperature display on the remote controller is “H0”, the remote controller is disabled. Wait until “H0” disappears before using remote controller. “H0” appears for about 2 minutes after power supply is turned on. w1

The TEST RUN appears on the screen. Cooling mode:

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

Check for correct motion of auto-vanes. The outdoor unit features automatic capacity control to

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

Check if cool air blows and water is drained.

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

7. Turn off the main power supply.

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

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

• Check that all the indoor units are running properly in case of simultaneous twin and triple operation. Malfunctions may not be displayed regardless of incorrect wiring.

w1 After turning on the power supply, the system will go into startup mode, “H0” will blink on the display section of the room

temperature, and lamp(red) of the remote controller will flash. As to INDOOR BOARD LED, LED1 and LED2 will be lit up in case the address is 0, or turned off in case the address is not

0. LED3 will blink. As to OUTDOOR BOARD LED, LED1(green) and LED2(red) will light up. (After the startup mode of the system finishes, LED2(red) will be turned off.) In case OUTDOOR BOARD LED is digital display, — and — will be displayed alternately every second.

• If one of the above operations doesn’t function correctly, the causes written below should be considered. Find causes from the symptoms. The below symptoms are under test run mode. “startup” in the table means the display status of w1 written above.

Symptoms in test run mode

Remote Controller Display

Remote controller displays “H0”, and cannot be operated.

After power is turned on, “H0” is displayed for 3 minutes, then error code is displayed.

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

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

OUTDOOR BOARD LED Display

< > indicates digital display.

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

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

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

alternately. <F3, F4, F9> After “startup” is displayed,

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

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

29

Cause

• After power is turned on, “H0” is displayed for 2 minutes during system startup. (Normal)

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

• Outdoor unit’s safeguard installation connector is open.

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

• Remote controller transmission wire short.

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

• Remote controller transmission wire burnout.

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

wPress the remote controller’s CHECK button twice to perform self-diagnosis. See the table below for the

LCD

Contents of inferior phenomena

P1 P2 P4 P5 P6 P8 P9

Abnormality of room temperature thermistor Abnormality of pipe temperature thermistor/Liquid Abnormality of drain sensor Drain overflow protection is working. Freezing/overheating protection is working. Abnormality of pipe temperature Abnormality of pipe temperature thermistor/Cond./Eva

LCD

Contents of inferior phenomena

U1~UP

F3~F9 E0~E5

E6~EF

----

FFFF

Malfunction outdoor unit Malfunction

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

No error history No applied unit

LED1

(microcomputer power supply)

LED2

(remote controller)

LED3

(indoor/outdoor communication)

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

Flash when indoor and outdoor unit are communicating.

ON

SW4

1 2

A Stop B Cooling C Operation D Heating

A

C D

B

(Factory setting)

contents of LCD display.

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

11-2-2. Test run by outdoor unit SW4

The setting of test run (ON/OFF) and its operation mode (cooling/heating) can be set by SW4 on the controller board of outdoor unit. Check that SW5-1 is set to OFF before performing test run. If SW5-1 is set to ON, turn it OFF and then perform test run. After finishing test run, set SW5-1 back to ON.

1Set operation mode(cooling or heating) by SW4-2. 2Start test run by setting SW4-1 to ON ( ) with the indicated operation mode of SW4-2. 3Finish test run by setting SW4-1 to OFF ( ).

• Operation mode cannot be changed by SW4-2 during test run. Stop test run to change operation mode by SW4-1, and restart test run by SW4-1 after

the mode is changed.

• Test run automatically stops 2 hours later by 2-hour OFF timer function.

• Test run can be performed by the remote controller.

• The remote controller display of test run by outdoor unit is the same as that of test run by

remote controller.

30