Mitsubishi Electric PKFY Series Betriebsanleitung

TECHNICAL & SERVICE MANUAL

SPLIT-TYPE,HEAT PUMP AIR CONDITIONERS

CONTENTS

1. SAFETY PRECAUTION .............................2

2. PART NAMES AND FUNCTIONS.............4

3. SPECIFICATIONS .....................................6

4. OUTLINES AND DIMENSIONS ................8

5. WIRING DIAGRAM....................................9

6. REFRIGERANT SYSTEM DIAGRAM.....10

7. TROUBLE SHOOTING............................ 11

8. DISASSEMBLY PROCEDURE................16

9. PARTS LIST ............................................19

PKFY-P32VGM

PKFY-P40VGM

PKFY-P50VGM

No. OC179

REVISED EDITION-B

[ Model names ]

Indoor unit

[ Service Ref. ]

PKFY-P32VGM

PKFY-P40VGM

PKFY-P50VGM

February 2012

Revision:

• The indicated No. of CORNER

COVER (page 19) in the illus-

tration have been corrected in

REVISED EDITION-B.

• Some descriptions have been

modified.

• Please void OC179

REVISED EDITION-A.

R407C R22

1SAFETY PRECAUTION

Cautions for units utilizing refrigerant R407C

CAUTIONS RELATED TO NEW REFRIGERANT

Do not use the existing refrigerant piping.

The old refrigerant and lubricant in the existing piping

contains a large amount of chlorine which may cause the

lubricant deterioration of the new unit.

Use “low residual oil piping”

If there is a large amount of residual oil (hydraulic oil, etc.)

inside the piping and joints, deterioration of the lubricant

will result.

Use ESTR , ETHER or HAB as the lubricant to

coat flares and flange connection parts.

If large amount of mineral oil enters, that can cause

deterioration of refrigerant oil etc.

Use liquid refrigerant to charge the system.

If gas refrigerant is used to seal the system, the composition

of the refrigerant in the cylinder will change and performance

may drop.

Do not use a refrigerant other than R407C.

If another refrigerant (R22, etc.) is used, the chlorine in the

refrigerant may cause the lubricant deterioration.

Use a vacuum pump with a reverse flow check valve.

The vacuum pump oil may flow back into the refrigerant

cycle and cause the lubricant deterioration.

Store the piping to be used indoors during

installation and both ends sealed until just

before brazing.

(Store elbows and other joints in a plastic bag.)

If dust, dirt, or water enters the refrigerant cycle,

deterioration of the oil and compressor trouble may result.

Ventilate the room if refrigerant leaks during

operation. If refrigerant comes into contact with

a flame, poisonous gases will be released.

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.

OC179B

[3] Refrigerant recharging

(1) Refrigerant recharging process

1Direct charging from the cylinder.

·R407C cylinder are available on the market has a syphon pipe.

·Leave the syphon pipe cylinder standing and recharge it.

(By liquid refrigerant)

(2) Recharge in refrigerant leakage case

·After recovering the all refrigerant in the unit, proceed to working.

·Do not release the refrigerant in the air.

·After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

Gravimeter

Unit

[1] Service tools

Use the below service tools as exclusive tools for R407C refrigerant.

No. Tool name Specifications

1Gauge manifold ·Only for R407C.

·Use the existing fitting SPECIFICATIONS. (UNF7/16)

·Use high-tension side pressure of 3.43MPa·G or over.

2Charge hose ·Only for R407C.

·Use pressure performance of 5.10MPa·G or over.

3Electronic scale

4Gas leak detector ·Use the detector for R134a or R407C.

5Adapter for reverse flow check. ·Attach on vacuum pump.

6Refrigerant charge base.

7Refrigerant cylinder. ·For R407C ·Top of cylinder (Brown)

·Cylinder with syphon

8Refrigerant recovery equipment.

[2] Cautions for service

• After recovering all the refrigerant in the unit, proceed to working.

• Do not release refrigerant in the air.

• After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

OC179B

PART NAMES AND FUNCTIONS

●Indoor Unit

PKFY-P32VGM

PKFY-P40VGM

PKFY-P50VGM

●Remote controller [PAR-F25MA]

Once the controls are set, the same operation mode can be repeated by simply pressing the on / off button.

●Operation buttons

TIMER button

This switches between continuous

operation and the timer operation.

AIR SPEED button

This sets the ventilation fan speed.

TIME SETTING button

This sets or switches the current

time, start time and stop time.

OPERATION SWITCH button

This switches the cooler electronic

dry (dehumidify), automatic and

heater modes.

TEMP ADJUSTMENT button

This sets the room temperature.

The temperature setting can be per-

formed in 1°C units.

Setting range :

Cooler 19°C to 30°C

Heater 17°C to 28°C

CHECK-TEST RUN button

Only press this button to perform an

inspection check or test operation.

Do not use it for normal operation

FILTER button

This resets the filter service indica-

tion display

AIR DIRECTION button

This adjusts the vertical angle of the

ventilation.

ON/OFF button

This switches between the opera-

tion and stop modes each time it is

pressed. The lamp on this button

lights during operation.

The model name of the remote con-

troller is indicated.

LOUVER button

This switches the horizontal fan

motion ON and OFF.

(This button does not operate in this

model.)

Air intake Air intake grill

Filter

Air outlet

Guide vane

Auto vane

OC179B

●Display

Caution

Only the Power display lights when the unit is stopped and power supplied to the unit.

When power is turned ON for the first time the (CENTRAL CTRL) display appears to go off momentarily but this is not a mal-

function.

When the central control remote control unit, which is sold separately, is used the ON-OFF button, Operation switch button

and iTEMP button do not operate.

“NOT AVAILABLE” is displayed when the Air speed button and the Louver button are pressed. This indicates that this room

unit is not equipped with the fan direction adjustment function and the louver function.

When power is turned ON for the first time, it is normal that “ HO ” is displayed on the room temperature indication (For max.

2 minutes). Please wait until this “ HO ” indication disappear then start the operation.

CENTRALLY

CONTROLLED display

This indicates when the unit is con-

trolled by optional features such as

central control type remote controller.

TIMER display

This indicates when the continuous

operation and time operation modes

are set.

It also display the time for the timer

operation at the same time as when

it is set.

OPERATION MODE display

This indicates the operation mode.

STANDBY display

This indicates when the standby

mode is set from the time the sleep

operation starts until the heating air

is discharged.

DEFROST display

This indicates when the defrost

operation is performed.

CHECK display

This indicates when a malfunction

has occurred in the unit which should

be checked.

POWER display

This display lights when the filter

need to be cleaned.

SET TEMPERATURE display

This displays the selected setting

temperature.

CLOCK display

The current time, start time and stop

time can be displayed in ten-second

intervals by pressing the time switch

button. The start time or stop time

is always displayed during the timer

operation.

FAN SPEED display

The selected fan speed is displayed.

In this display example on

the bottom left, a condition

where all display lamps light

is shown for explanation

purposes although this differs

from actual operation.

display

This display lights in the check mode

or when a test operation is per-

formed.

CHECK MODE

TEST RUN

ROOM TEMPERATURE display

The temperature of the suction air is

displayed during operation. The dis-

play range is 8° to 39°C. The display

flashes 8°C when the actual tem-

perature is less than 8° and flashes

39°C when the actual temperature is

greater than 39°C.

Operation lamp

This lamp lights during operation,

goes off when the unit stops and

flashes when malfunction occurs.

OC179B

3SPECIFICATIONS

3-1. Specification

12 - 11 - 10 - 9

15.88 <5/8">

9.52 <3/8">

43 - 40 - 37 - 34

Power

consumption

Current

Type ×No.

Air flow +2

External stafic pressure

Fan motor output

Item

Power source

Cooling capacity

Heating capacity

Exterior <munsell symbol>

Dimensions

Heat exchanger

Fan

Air filter

Refrigerant

pipe dimensions

Drain pipe dimension

Noise level +2

Product weight

Unit

V · Hz

kcal/h

—

G/min

—

:mm

dB (A)

Cooling

Heating

Cooling

Heating

Height

Width

Depth

Gas side

Liquid side

PKFY-P32VGM

3150

3550

PKFY-P40VGM

4000

4500

Single phase 220-240V 50Hz / 220V 60Hz

0.07

0.32

Plastic , white : <0.70Y 8.59/0.97>

340

990

235

Cross fin(Aluminum plate fin and copper tube)

Lineflow fan ×1

0.03

PP Honey comb

Outer diameter 20 <PVC pipe VP-20 connectable>

Electric

characteristic

PKFY-P50VGM

5000

5600

11.5 - 10.5 - 9.5 - 8

12.7 <1/2">

6.35 <1/4">

41 - 38 - 36 - 33

Note : w1.Rating conditions

Cooling :Indoor 27°C DB. 19.5°C WB

Outdoor 35°C DB. 24°C WB

Heating : Indoor 21°C DB.

Outdoor 7°C DB. 6°C WB

W2.Air flow and the noise level are indicated as High - Medium1 - Medium2 - Low .

OC179B

3-2. Electrical parts specifications

Transformer

Room temperature thermistor

Liquid pipe thermistor

Gas pipe thermistor

Fuse

(Indoor controller board)

Fan motor

(with inner-thermostat)

Fan motor capacitor

Vane motor

Linear expansion valve

Power supply terminal block

Transmission terminal block

Symbol

TH21

TH22

TH23

FUSE

LEV

TB2

TB5

PKFY-P32VGM PKFY-P40VGM

(Primary) 50/60Hz 220 - 240V (Secondary) 18.4V 1.7A

Resistance

0C/15k, 10C/9.6k, 20C/6.3k, 25C/5.4k, 30C/4.3k, 40C/3.0k

250V 6.3A

PM4V30-K 220-240V/220V , 50/60Hz

4 pole Output 30W

OFF 125 ± 5

2.0F 440V

MP 35 EA DC12V

DC12V Stepping motor drive

Port dimension :3.2 (0 ~ 2000pulse)

(L, N, ) 330V 30A

(M1, M2, S) 250V 20A

Model

Parts name PKFY-P50VGM

Inner-thermostat

OC179B

OUTLINES AND DIMENSIONS4

Unit : mm

PKFY- P32VGM

PKFY- P40VGM

PKFY- P50VGM

Installation plate

balance point hole

49 - :5 hole

for tapping screw

Knock out hole for

right-rear piping Right-rear

piping hole

( Necessary clearance for Unit installation )

R52.5

R52.5 R52.5

Unit center

Right side

Allowing clearances

Front view

1 Sleeves are available on the market.

2 This size shows the lower end of through hole.

:90 ~ :100

:75 ~ :80

:90

:75

Through holeSleeve 1

32 , 40

Model

Details of installation plate

14 - :14 hole

for bolts

Left-rear

piping hole

Knock out hole for

left-rear piping

Less than 130

50 or more 150 or more

180 or more

30 or more

425

420

170

190

210

230

322

130

190

230

272

310

150

205

260

320

345

495

135

190

245

300

360

405

495

Knockout hole for right piping

Refrigerant pipe.Drain pipe.

Wiring hole

Gas pipe

Liquid pipe

Address board

Terminal block for

power supply

Terminal block for

remote control

Filter grip

Knockout hole for under piping

Refrigerant piping.Drain pipe.

Wiring hole

Service panel

(Power supply access)

5/8F

Gas pipe

1/2F

Liquid pipe

3/8F

1/4F

32 , 40

Model

( Flexible hose total length 800 ) ( Right side piping

installation )

( Left side piping

installation )

Drain pipe (VP-20)

(Front view( to open the grille ))

12 - Louvers ( manual )

Air outlet

(Lower side)

Auto vane

(Left side) (Front view)

Air intake

Knockout hole for left piping

Refrigerant pipe.Drain pipe.Wiring hole.

(Right side)

700 153

449 86

581 54

280

245

395400

190

70 35

160 40

705 235

Less than 15

198

245

235

340

715 225

340 80 280 233

990

OC179B

5WIRING DIAGRAM

PKFY-P32VGM, PKFY-P40VGM, PKFY-P50VGM

BLU

YLW

ORN

RED

BRN

SW3

109876

OFF 12345

SW2

OFF 123456

P32VGM

Models

OFF 123456

P40VGM 109876

OFF 12345

Models SW2

P50VGM ON

OFF 123456 54321

OFF

678910

SW3

<1 >

The black square (■) indicates a switch position.

See fig: 1

ORN

BLU

RED

BRN

WHT

YLW

(RED)

CN50

DRAIN

CN29

GAS

(BLK)

CN21

LIQUID

(WHT) (RED)

CN20

INTAKE

TB2

GRN/YLW

~ 220-240V 50Hz

~ 220V 60Hz

POWER SUPPLY

PULL BOX

BREAKER(15A)

FUSE(15A)

TO NEXT INDOOR UNIT

BLU

S(SHIELD)

REMOTE CONTROLLER

DC24-30V

{

BC CONTROLLER

TO OUTDOOR UNIT

TB5

(BLU)

M-NET

CN2M

AC220-240V

AC18.4V

RED

BLU

CN52

(WHT)

REMOTE

INDICATION CN51

CENTRALLY

CONTROL

(WHT)

LEV

(WHT)

CN60 CN32

REMOTO

SWITCH

(WHT)

BLU

RED

FUSE

250V

6.3A

CND

(RED) CN3T

(RED)

ADDRESS

(RED)

CN42

ADDRESS

(RED)

CN81

(GRN)

VANE

CN6V

RED

WHT

CNT

(WHT)

FAN1

(WHT)

WHT

BLK

RED

3RD

DIGIT 2ND

DIGIT 1ST

DIGIT CONNEC

(RED)

ADDRESS

CN82

CN43

(RED)

ADDRESS

240V220V SW5

SWC

CN26

135151

TH22

LED5LED2LED1LED3LED4

SW4

1234567891023456

SW3SW2

OFF12345678910

SW1

SW12 SW11

A.B

F.C

CN41

ZNR

SW14

0FF

LEV TH23 TH21

(WHT)

I.B

1.At servicing for outdoor unit,always follow the wiring diagram of outdoor unit.

2.Symbol[S] of TB5 is the shield wire connection.

3.Symbols used in wiring diagram above are, :terminal block, :connecter.

4.The setting of the SW2 dip switches differs in the capacity for the detail,see the table below.

5.Please set the switch SW5 according to the power supply voltare.

Set SW5 to 240V side when the power supply is 230 and 240 volts.

When the power supply is 220 volts, set SW5 to 220V side.

123456

123412345678561234

1221

12345

31 1

513

132

Note

-TION No.

PKFY-

Mode selection

A.B

SW12

SW11

SW1

SW14

SW5

SWC Option selector

Connection No.

Address setting 2nd digit

Address setting 1st digit

Voltage selection

Switch

Circuit board

Transmission

Power supply

(0/15,25/5.4)

Pipe temperature detection/Liquid

(0/15,25/5.4)

Pipe temperature detection/Gas

(0/15,25/5.4)

Transformer

Fan motor (with inner thermostat)

Capacitor (fan motor)

Room temperature detection

TH22

TH23

TH21 Thermistor

TB2

TB5

LEV block

Terminal

Linear expansion valve

MV Vane motor

Symbol Name Symbol NameNameSymbol

F.C Fan phase control

Fuse (6.3A)FUSE

I.B

ZNR

SW3

SW4

SW2

CN52

CN51

CN41

CN32 Indoor controller board

Connector

Aux.Relay (Fan motor)

Varistor

Mode selection

Capacity code

Remote indication

Centrally control

Remote switch

HA terminal-A

Switch

Model selection

OC179B

REFRIGERANT SYSTEM DIAGRAM6

Strainer (#50mesh)

Strainer (#100mesh)

Heat exchanger

Room temperature thermistor

TH21

Gas pipe thermistor

TH23

Liquid pipe thermistor

TH22

Linear expansion valve

Gas pipe

Flare connection

PKFY-P32VGM

PKFY-P40VGM

PKFY-P50VGM

Gas pipe

PKFY-P32VGM, PKFY-P40VGM

{12.7 <1/2F>

Liquid pipe {6.35 <1/4F>

Capacity

Item

Refrigeration pipe size (Flare connection size)

PKFY-P50VGM

[15.88<5/8F>

[9.52<3/8F>

OC179B

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