Mitsubishi PKFY-P32VGM-A Betriebsanleitung

TECHNICAL & SERVICE MANUAL

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. RoHS PARTS LIST..................................19

[Model names]

PKFY-P32VGM-A

PKFY-P40VGM-A

PKFY-P50VGM-A

Series PKFY

Indoor unit

R407C

R22

[Service Ref.]

PKFY-P32VGM-A

PKFY-P40VGM-A

PKFY-P50VGM-A

March 2013

No. OC250

REVISED EDITION-A

Revision:

• The indicated No. of CORNER

COVER (page 19) in the illus-

tration has been corrected in

REVISED EDITION-A.

• Some descriptions have been

modified.

• Please void OC250.

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SPLIT-TYPE, AIR CONDITIONERS

Note:

• RoHS compliant products

have <G> mark on the spec

name plate.

• For servicing of RoHS com-

pliant products, refer to the

RoHS Parts List.

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

contain 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 a small amount of ESTER , 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 indoors, 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.

OC250A

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 3.43 MPa·G or over.

2Charge hose · Only for R407C

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

3Electronic scale —

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

5Adaptor 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 —

[3] Refrigerant recharging

(1) Refrigerant recharging process

1Direct charging from the cylinder.

• R407C cylinder 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 all the 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.

[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.

OC250A

2PART NAMES AND FUNCTIONS

●Indoor Unit

PKFY-P32VGM-A

PKFY-P40VGM-A

PKFY-P50VGM-A

●Remote controller [PAR-20MAA]

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

●Operation buttons

Air intake Air intake grille

Filter

Air outlet

Guide vane

Auto vane

PAR-20MAA

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK ON OFF

°C

CHECK

CHECK MODE

FILTER

TEST RUN

FUNCTION

°C

1Hr.

NOTAVAILABLE

STAND BY

DEFROST

FILTER

CHECK TEST

TEMP.

TIMER SET

Press this button to switch the cooler,

electronic dry (dehumidify), automatic

and heater modes.

OPERATION SWITCH button

This sets the room temperature. The

temperature setting can be performed

in 1units

Setting range

Cooler 19to 30

Heater 17to 28

TEMP. ADJUSTMENT button

This switches between continuous

operation and the timer operation.

TIMER button

This switches between the operation

and stop modes each time it is pressed.

The lamp on this button lights during

operation.

ON/OFF button

Only press this button to perform an

inspection check or test operation.

Do not use it for normal operation.

CHECK-TEST RUN button

This switch the horizontal fan motion

ON and OFF.

LOUVER button

This adjusts the vertical angle of the

ventilation.

AIR DIRECTION button

This resets the filter service indication

display

FILTER button

This sets the current time, start time

and stop time.

TIME SETTING button

This sets the ventilation fan speed.

AIR SPEED button

OC250A

Caution

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

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

and TEMP. adjustment button do not operate.

●“NOT AVAILABLE” is displayed when the Air speed 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 “H0” is displayed on the room temperature indication (For max. 2

minutes). Please wait until this “H0” 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

The [STANDBY] symbol is only

displayed from the time the heating

operation starts unit the heated air

begins to blow.

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.

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.

●Display

In this display example on the bot-

tom left, a condition where all display

lamps light is shown for explanation

purposes although this differs from

actual operation.

Operation lamp

This lamp lights during operation,

goes off when the unit stops and

flashes when a malfunction occurs.

POWER display

This lamp lights when electricity is

supplied to the unit.

SET TEMPERATURE display

This displays the selected setting

temperature.

AIR DIRECTION display

This displays the air direction.

ROOM TEMPERATURE display

The temperature of the suction air

is displayed during operation. The

display range is 8°C to 39°C. The

display flashes 8°C when the actual

temperature is less than 8°C and

flashes 39°C when the actual tem-

perature is greater than 39°C.

display

This display lights in the check mode

or when a test operation is per-

formed.

CHECK MODE

TEST RUN

This lamp lights when the filter need

to be cleaned.

AIR SPEED display

The selected fan speed is displayed.

FILTER display

PAR-20MAA

ON/OFF

CENTRALLY CONTROLLED

ERROR CODE

CLOCK ON OFF

°C

CHECK

CHECK MODE

FILTER

TEST RUN

FUNCTION

°C

1Hr.

NOTAVAILABLE

STAND BY

DEFROST

FILTER

CHECK TEST

TEMP.

TIMER SET

OC250A

3SPECIFICATIONS

3-1. SPECIFICATION

Item

V•Hz

—

G/min

—

:mm(in.)

:mm

Cooling capacity

Power

Heat exchanger

Insulator

Air filter

Fan × No

Air flow *2

Pipe

dimensions

Unit drain pipe size

Noise level *2

Product weight

Exterior

(munsell symbol)

Fan motor

output

External

static pressure

Liquid

side

Gas

side

Heating capacity

Dimensions

Height

Width

Depth

Electric characteristic

Input

Cooling

Heating

Cooling

Heating

Current

PKFY-P32VGM-A PKFY-P40VGM-A PKFY-P50VGM-A

Single phase 220V-230V-240V · 50Hz / 220V · 60Hz

3.6

4.0

4.5

5.0

0.07

0.32

Plastic , white : <0.70Y 8.59/0.97>

340

990

235

Cross fin (Aluminum plate fin and copper tube)

Linflow fan × 1

0.03

Polyethylene sheet

PP honey comb

O.D.20 (PVC pipe VP-20 connectable)

5.6

6.3

12-11-10-9

15.88(5/8")

9.52(3/8")

43-40-37-34

11.5-10.5-9.5-8

12.7(1/2")

6.35(1/4")

41-38-36-33

Note 1.Rating conditions

Cooling :Indoor D.B. 27°C W.B. 19.0°C

Outdoor D.B. 35°C W.B. 24°C

Heating : Indoor D.B. 20°C

Outdoor D.B. 7°C W.B. 6°C

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

OC250A

3-2. ELECTRICAL PARTS SPECIFICATIONS

Room temperature thermistor

Liquid pipe temperature thermistor

Gas pipe temperature 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

MA remote controller terminal block

Symbol

TH21

TH22

TH23

FUSE

LEV

TB2

TB5

TB15

PKFY-P32VGM-A PKFY-P40VGM-A

Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.2kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ

250V 6.3A

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

4 pole Output 30W

OFF 1255

°C

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

(1,2) 250V 10A

Model

Parts name PKFY-P50VGM-A

Inner-thermostat

OC250A

4 OUTLINES AND DIMENSIONS

Knockout hole for right piping

Refrigerant pipe.Drain pipe.

Wiring hole

Gas pipe

Liquid pipe

Address board

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

Installation plate

balance point hole

49 - :5 hole

for tapping screw

Knockout 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

1Sleeves are available on the market.

2This 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

Knockout 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

Unit : mm

PKFY-P32VGM-A

PKFY-P40VGM-A

PKFY-P50VGM-A

OC250A

WIRING DIAGRAM

PKFY-P32VGM-A , PKFY-P40VGM-A , PKFY-P50VGM-A

(GRN)

LED2

5432

TH22

1 1234567891023456

LEV

TH21

The black square ( ) indicates a switch position.

TH23

SW4

0N SW3SW2

0FF 0FF

P.B

TRANS CN2S

DC13.1V

(RED)

AC220v~240V

CNSK

CNDK CN2D WHT

ORN

1CN41 4

135151

X4 LED1

FAN

F.C

CND FUSE

250V

6.3A

ZNR

CN51

CN31

I.B

CN3A

DRAIN

{

TB15 1

{

CN6V

VANE

(GRN) ADDRESS

(RED)

CN81 ADDRESS

(RED)

CN42

See fig:+1

REMOTE

INDICATION

CN52

CENTRALLY

CONTROL

(WHT) (WHT)

LEV

CN60

(WHT)

CN32

REMOTE

SWITCH

(RED)

CN20

INTAKE

CN21

LIQUID

(WHT)

CN29

GAS

(BLK)

CN2M

M-NET

(BLU)

BLU

(WHT) (WHT) (WHT) BLK

(WHT)

(RED) (RED)

(WHT)

RED

WHT

BLK

WHT

BLK

WHT

YLW

ORN

BLU

RED

BRN

CONTROLLER

DC8.7-13V

TO MA-REMOTE

S(SHIELD)

DC24-30V

BC CONTROLLER

RED

BLU

REMOTE CONTROLLER

TO OUTDOOR UNIT

~/N 220V 60Hz

BREAKER

(15A)

FUSE(15A)

~/N 220-230-240V 50Hz

TO NEXT INDOOR UNIT

PULL BOX

TB5

TB2

GRN/YLW

BLU

RED

1221 21

432165 87654321 4321

321

315

654321

A.B

SWC

SW5

220V 240V

2ND

DIGIT

CN82

ADDRESS

(RED)

OFF12345678910

SW1

SW12SW11

3RD

DIGIT

1ST

DIGIT

CONNECTION

NO.

SW14

ADDRESS

(RED)

CN43

SW3

OFF

345678910

PKFY-P50VGM-A ON

OFF 123456

<+1>

PKFY-P40VGM-A 654321

OFF

ON 654321

OFF

PKFY-P32VGM-A

Models SW2

54321

OFF

1098756

OFF 1234

1098756

OFF 1234 54321

OFF

54321

OFF

SW4

POWER SUPPLY

P.B Indoor power board

Power supply for MA-Remote controller

on →lamp is lit

Main power supply(Indoor unit:220-240V)

power on →lamp is lit

LED on indoor board for service

Power supply for

MA-Remote controller

Function

Main power supply

Meaning

LED2

LED1

Mark

NameNameName SymbolSymbolSymbol

Option selector

SWC

Linear expansion valve

LEV

Varistor

ZNR

Model selection

Capacity code

Mode selection

Remote indication

Centrally control

Remote switch

I.B Indoor controller board

Connector

CN32

CN51

CN52

Switch

SW2

SW3

SW4

Voltage selection

Address setting 2nd digit

Connection No.

Address setting 1st digit

Mode selection

Power supply

Vane motor

Switch

Terminal

block

SW5

A.B

SW1

SW11

SW12

SW14

TB2

Capacitor(fan motor)

FUSE (6.3A)

Pipe temperature,detection/Gas

Pipe temperature,detection/Liguid

Room temperature ,detection

Fan phase control

Thermistor

(0°C/15kΩ, 25°C/5.4kΩ)

F.C

FUSE

TH21

TH22

TH23

Aux.Relay Aux.Relay(Fan motor)

Fan motor(with inner thermo)

TB5 Transmission

TB15 MA-remote controller

CN41 HA terminal-A

Circuit board (Address)

(Remote controller wire is non-polar.)

In case of using MA-Remote controller,please connect to TB15.

In case of using M-NET,please connect to TB5.(Transmission line is non-polar.)

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

Please set the switch SW5 according to the power supply voltage.

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

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

The setting of the SW2 dip switches differs in the capacity for the detail,refer to the fig:+1.

Note

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

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

OC250A

6 REFRIGERANT SYSTEM DIAGRAM

Strainer (#50mesh)

Strainer (#100mesh)

Heat exchanger

Room temperature thermistor

TH21

Gas pipe temperature

thermistor TH23

Liquid pipe temperature

thermistor TH22

Linear expansion valve

Gas pipe

Liquid pipe

Flare connection

PKFY-P32VGM-A

PKFY-P40VGM-A

PKFY-P50VGM-A

Gas pipe

PKFY-P32VGM-A, PKFY-P40VGM-A

{12.7 (1/2”)

Liquid pipe {6.35 (1/4”)

Capacity

Item PKFY-P50VGM-A

[15.88(5/8”)

[9.52(3/8”)

OC250A

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