Mitsubishi Electric Mr.Slim PUZ-HA42NKA Manuale utente

SERVICE MANUAL

CONTENTS

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

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

3. FEATURES ······················································ 6

4. SPECIFICATIONS ··········································· 7

5. DATA································································ 8

6. OUTLINES AND DIMENSIONS ···················· 10

7. WIRING DIAGRAM·········································11

8. WIRING SPECIFICATIONS··························· 12

REFRIGERANT SYSTEM DIAGRAM

·············· 16

10. TROUBLESHOOTING··································· 18

11. EASY MAINTENANCE FUNCTION··············· 71

12. FUNCTION SETTING ···································· 74

13.

MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER

············ 82

14. DISASSEMBLY PROCEDURE······················ 92

No. OCH567

R410A

August 2014

Note:

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PUZ-HA42NKA

PARTS CATALOG (OCB567)

[Model Name] [Service Ref.]

PUZ-HA42NKA

63/,77<3(+($73803$,5&21',7,21(56

2SAFETY PRECAUTION

1REFERENCE MANUAL

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

Preparation before the repair service.

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Precautions during the repair service.

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2-1. ALWAYS OBSERVE FOR SAFETY

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INDOOR UNIT SERVICE MANUAL

OCH567



Cautions for units utilizing refrigerant R410A

2-2. CAUTIONS RELATED TO NEW REFRIGERANT

Use new refrigerant pipes.

Make sure that the inside and outside of refrige-

rant 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.

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.

Contamination inside refrigerant piping can cause deterio-

ration of refrigerant oil, etc.

If large amount of mineral oil enters, that can cause deterio-

ration of refrigerant oil, etc.

Do not use refrigerant other than R410A.

If other refrigerant (R22, etc.) is used, chlorine in refrige-

rant 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 com-

pressor.

Do not use a charging cylinder.

If a charging cylinder is used, the composition of refrigera-

nt 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

Use the specified refrigerant only.

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.

Ventilate the room if refrigerant leaks during

operation. If refrigerant comes into contact with

a flame, poisonous gases will be released.

Store the piping indoors, and both ends of the

piping sealed until just before brazing.

(Leave elbow joints, etc. in their packaging.)

If dirt, dust or moisture enters into refrigerant cycle, that can

cause deterioration of refrigerant oil or malfunction of compressor.

OCH567



Gravimeter

Unit

[3] Service tools

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

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[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

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OCH567



2-3. CAUTIONS FOR REFRIGERANT PIPING WORK

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1/4

3/8

1/2

5/8

3/4

6.35

9.52

12.70

15.88

19.05

1/32 [0.8]

5/128 [1.0]

—

1/32 [0.8]

5/128 [1.0]

Nominal

dimensions

(in)

Diagram below: Piping diameter and thickness

Outside

diameter (mm)

Thickness : in [mm]

R410A R22

1/4

3/8

1/2

5/8

3/4

6.35

9.52

12.70

15.88

19.05

1/32 [0.8]

5/128 [1.0]

—

1/32 [0.8]

5/128 [1.0]

Nominal

dimensions

(in)

Diagram below: Piping diameter and thickness

Outside

diameter (mm)

Thickness : in [mm]

R410A R22 1/4

3/8

1/2

5/8

3/4

6.35

9.52

12.70

15.88

19.05

43/64 [17.0]

7/8 [22.0]

1-3/64 [26.0]

1-9/64 [29.0]

17.0

22.0

24.0

27.0

36.0

Nominal

dimensions (in)

Flare nut dimensions Outside

diameter(mm)

Dimension B

Unit: in [mm]

R410A 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 thermis-

tor vacuum gauge and

vacuum valve

Charging cylinder

Air purge, refrigerant charge

and operation check

Gas leak check

Recover 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

Recover refrigerant

Check the degree of vacuum. (Vacuum

valve prevents back flow of oil and refri-

gerant to thermistor vacuum gauge)

Recover refrigerant

Tool exclusive for R410A

Tool for HFC refrigerant

Tool exclusive for R410A

Ester oil and alkylbenzene

oil (minimum amount)

Tool exclusive for R410A

Tools for other refrigerants can

be used if equipped with adop-

ter for reverse flow check

Tools for other refrigerants

can be used by adjusting

flaring dimension

Tools can be used for other refrigerants

Tools can be used for other

refrigerants

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)

: 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.

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OCH567



3 FEATURES

HIGH HEATING CAPACITY

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HIGH SPEED HEATING START UP

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WIDE HEATING RANGE

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CHARGELESS SYSTEM

PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT.

Maximum 100 ft, 30 m

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PUZ-HA42NKA

Outdoor W.B. temp.

Heating capacity

-13°F

[-25°C] -4°F

[-20°C] 5°F

[-15°C] 14°F

[-10°C] 23°F

[-5°C] 32°F

[0°C]

A42

HA36

50,000

(Btu/h)

40,000

28,800 BTU/h

48,000 BTU/h

Performance

about 60%UP

33,000 Btu/h

(Outlet air temp.

105°F [41°C])

About 5min.

Stable

About 50% CUT

Elapsed time (min.)

Heating capacity(peak)

About 10 min.

When stabled,

hot air of Û)>Û&@

PUZ-A type:

Outlet air temp. Û)>Û&@

+$

2XWOHWDLUWHPSÛ)>Û&@w1

50,000

(Btu/h)

40,000

5100

w1 Condition

Room temp. 70°F [21°C](D.B.) Outdoor temp. 35°F [1.7°C](D.B.) / 33°F [0.6°C] (W.B.) : Hi notch

It doesn’t become

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when outside air temp.

is too low.

Expanded

Up to -13

°F

Outdoor wet-bulb temperature

A42 type

HA42 type

-13°F

10°F

-13°F

[-25°C] -4°F

[-20°C] 5°F

[-15°C] 14°F

[-10°C] 23°F

[-5°C] 32°F

[0°C]

OCH567



4SPECIFICATIONS

Service Ref.

Power supply Phase Single

Cycle 60Hz

Voltage 208/230V

MCA A 37

MOCP A 44

Breaker size A 40

External finish Munsell 3Y 7.8/1.1

Heat exchanger Plate fin coil

Defrost method Reverse cycle

Crankcase heater kW -

Compressor Hermetic

Model

Motor output kW 2.5

R.L.A. 19

L.R.A. 28

Starter type Inverter

Fan Fan(drive) oNo. Propeller fan o2

Fan motor output kW 0.086 + 0.086

Fan motor F.L.A. 0.40 + 0.40

Airflow m

/min 94

CFM 3,320

Sound level Cooling dB 49

Heating dB 51

Protection devices HP switch

LP switch

Discharge thermo

Comp. surface thermo

Dimension W

mm 1050

mm 330+30

mm 1,338

in 41 - 6/16

in 13 + 1-3/16

in 52 - 11/16

Weight kg

Refrigerant Charged kg 6.0

R410A

lb 13.4

Control Linear expansion valve

Oil Model Ether (FVC68D)

Charged L1.7

oz 57

Refrigerant Pipe size OD mm 9.52

piping Liquid in 3/8

Pipe size OD mm 15.88

Gas in 5/8

Connection method Indoor Flared

Connection method Outdoor Flared

Height difference mMaximum 30

IU - OU ft Maximum100

Piping length Maximum 75

Maximum 245

PUZ-HA42NKA

ANB42FJTMT

130

287

OCH567



Piping Length (one way)

Charged

Factory

Service Ref. 100 ft 110 ft 120 ft 130 ft 140 ft 150 ft 160 ft 165 ft

30 m 33 m 37 m 40 m 43 m 46 m 49 m 50 m

PUZ-HA42NKA

212 oz 218 oz 224 oz 230 oz 236 oz 242 oz 248 oz 255 oz 212 oz

6.0 kg 6.2 kg 6.5 kg 6.7 kg 6.9 kg 7.1 kg 7.2 kg 7.4 kg

180 ft 200 ft 210 ft 230 ft 245 ft

55 m 61 m 64 m 70 m 75 m

260 oz 272 oz 278 oz 290 oz 298 oz

7.7 kg 7.9 kg 8.2 kg 8.4 kg

6.4 kg 6.0 kg

For pipes longer than 100 ft, additional charge is required.

Service Ref.

Compressor model

(')

Winding Registance

U-V

U-W

W-V

(at 68°F [20°C] )

PUZ-HA42NKA

ANB42FJTMT

0.188

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

5-2. COMPRESSOR TECHNICAL DATA

5DATA

5-3. NOISE CRITERION CURVES

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

PUZ-HA42NKA

COOLING

MODE

HEATING

SPL(dB)

LINE

5 ft

3.3 ft

MICROPHONE

UNIT

GROUND

OCH567



Representative matching PLA-A42BA4

Mode COOLING HEATING

Total Capacity BTU/h 42,000

4,340 48,000

4,660

Input W

Electrical circuit

Indoor unit model PLA-A42BA4

Phase Single

Cycle 60Hz

Voltage 230V

Current

Outdoor unit model PUZ-HA42NKA

Phase Single

Cycle 60Hz

Voltage 230V

Current

Refrigerant circuit

Discharge pressure

MPa

Suction pressure

MPa

Discharge temperature

Condensing temperature

Suction temperature

Ref. Pipe length

Discharge pressure

PSIG

Suction pressure

PSIG

Discharge temperature

Condensing temperature

Suction temperature

Ref. Pipe length

side

Indoor Intake air temperature DB

Intake air temperature WB

Discharge air temperature DB

side

Outdoor Intake air temperature DB

Intake air temperature WB

side

Indoor Intake air temperature DB

°F

Intake air temperature WB

°F

Discharge air temperature DB

°F

side

Outdoor Intake air temperature DB

°F

Intake air temperature WB

°F

SHF

18.7 A

390

119

166

114

2.69

0.82

74.2

45.8

9.1

7.6

26.7

19.4

11.9

35.0

23.9

0.71

0.15

20.1 A

475

193

125

3.28

0.68

89.7

51.9

4.9

7.6

116

21.1

15.6

46.9

8.3

6.1

—

1.00 A 0.94 A

°F

°C

5-4. STANDARD OPERATION DATA

OCH567



6OUTLINES AND DIMENSIONS

Unit: mm<inch>

PUZ-HA42NKA

Conduit hole

(Ø24<15/16>Knock-Out)

Conduit hole

(Ø37<1-15/32>Knock-Out)

Rear trunking hole

(Knock-Out)

Rear piping hole

(Knock-Out)

75<2-15/16>

92<3-5/8>

73<2-7/8>

60<2-3/8>

5<3/16>

26<1-1/32>

27<1-1/16>

55<2-3/16>

55<2-3/16> 60<2-3/8>

Ø92

<3-5/8>

Rear Air Intake

Handle for

moving Handle for

moving

Ground for the power supply

("GR"marking position)

Service panel

Handle for moving

Terminal connection

Left・・・Power supply wiring

Right・・Indoor/Outdoor wiring

( )

Handle for moving

※1 450<17-23/32>

1068 <42-1/20>

1050 <41-11/32>

26<1-1/32>

369 <14-17/32> 632 <24-7/8>

1338 <52-11/16>

362<14-1/4>

※1 442<17-2/5>

Conduit hole

(Ø24<15/16>Knock-Out)

Front piping hole

(Knock-Out)

Front trunking hole

(Knock-Out)

Conduit hole

(Ø37<1-15/32>Knock-Out)

26<1-1/32>

92<3-5/8>

27<1-1/16> 55<2-3/16>

73<2-7/8>

75<2-15/16>

55<2-3/16>60<2-3/8>

Ø92

<3-5/8>

Right trunking hole

(Knock-Out)

Conduit hole

(Ø37<1-15/32>Knock-Out)

Conduit hole

(Ø24<15/16>Knock-Out)

Right piping hole

(Knock-Out)

73 <2-7/8> 61<2-3/8>

5<3/16>

29<1-5/32>

27<1-1/16>

26<1-1/32> 92

<3-5/8>

53<2-3/32> 60<2-3/8>

55<2-3/16>

92<3-5/8>

Ø92

<3-5/8>

Drain hole

（5-Ø33<1-5/16>)

Bottom piping hole

(Knock-Out)

136

<5-11/32>

154

<6-1/16>

160

<6-5/16>

160

<6-5/16>

160

<6-5/16>

110<14-11/32>

45<1-25/32>

81<3-3/16>

86<3-3/8>

Side Air Intake

Rear piping cover

Front piping cover

Air intake

Installation Feet

2-U Shaped notched holes

(Foundation Bolt M10<W3/8>)

2-12×36 Oval holes

(Foundation Bolt M10<W3/8>)

Side Air Intake

Rear Air Intake

Air Discharge

330<13>

<2-3/4>

417<16-13/32>

225

<8-27/32> 600<23-5/8> 225

<8-27/32>

370 <14-9/16>

<1-21/32>

<2-13/32>

25<31/32>

19<3/4>28<1-3/32>

53 <2-3/32>

40 <1-9/16>

56 <2-7/32>

1/2 Conduit

attachment

22.2<7/8>

27.8<1-3/32>

When installing the conduit.

Set the attachment to the

inner side of each panel.

3/4 Conduit

attachment

Scale 1:5

60<2-3/8> 22.5<7/8>

5<3/16>

24.7<31/32>

100

<3-15/16>

Piping and wiring connections

can be made from 4 directions:

FRONT, Right, Rear and Below.

4 PIPING-WIRING DIRECTIONS

FREE

Min. 15mm

<3/5> Min. 15mm

<3/5>

Min. 1000mm

<39-3/8> Min. 150mm

<5-29/32>

1 FREE SPACE (Around the unit)

The diagram below shows a basic example.

Explantion of particular details are

given in the installation manuals etc.

3 FOUNDATION BOLTS

Please secure the unit firmly

with 4 foundation (M10<W3/8>)

bolts.(Bolts and washers must

be purchased locally.)

Max.

FOUNDATION

30<1-3/16>

Min.

2 SERVICE SPACE

Dimensions of space needed

for service access are

shown in the below diagram.

Service space

Min.Min.

Min.

15<3/5>

<2>

500

<19-11/16>

500

<19-11/16>

150

<5-29/32>

Piping Knock-Out Hole Details

Example of Notes

 ・・・

Refrigerant GAS pipe connection (FLARE)

15.88（5/8F）

※１

・・・Indication of STOP VALVE connection location.

 ・・・

Refrigerant LIQUID pipe connection (FLARE)

Ø9.52（3/8F）

OCH567

Indice

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