Mitsubishi PCFY-P100VGM, PCFY-P125VGM, PCFY-P40VGM, PCFY-P63VGM Service Manual

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·····························12

REFRIGERANT SYSTEM DIAGRAM

···13

7. TROUBLE SHOOTING·······················14

8. DISASSEMBLY PROCEDURE···········19

9. PARTS LIST········································23

PCFY-P40VGM PCFY-P63VGM PCFY-P100VGM PCFY-P125VGM

No. OC178

1998

[ Model name ]

INDOOR UNIT

Ceiling Suspended

Series PCFY

PCFY-P40VGM PCFY-P63VGM PCFY-P100VGM PCFY-P125VGM

[ Service Ref. ]

R407C

R22

SAFETY PRECAUTION

Cautions for using with the outdoor unit which adopts R407C refrigerant.

· Do not use the existing refrigerant piping.

-The old refrigerant and refrigerator oil in the existing piping contains a large amount of chlorine which may cause the refrigerator oil of the new unit to deteriorate.

· 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 refrigerator oil will result.

· Store the piping to be used during installation indoors and keep both ends of the piping 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.

· Use ESTER , ETHER or HAB as the refrigerator oil to coat flares and flange connection parts.

· Use liquid refrigerant to seal 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 refrigerator oil to deteriorate.

· Use a vacuum pump with a reverse flow check valve.

-The vacuum pump oil may flow back into the refrigerant cycle and cause the refrigerator oil to deteriorate.

[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 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

1 Gauge manifold ·Only for R407C.

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

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

2 Charge hose ·Only for R407C.

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

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

·Cylinder with syphon

8 Refrigerant recovery equipment

[2] Notice on repair service

·After recovering the all 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 the liquid refrigerant.

PART NAMES AND FUNCTION

● Indoor (Main) Unit

Air outlet

Intake grille

Air intake

Left/right guide vanes

Change the direction of airflow from the horizontal blower.

Long-life fillter

Removes dust and foreigh matter from air coming in through the grille (Recommended cleaning interval : Approx, every 2,500 operating hours)

Up/down guide vanes

Change the direction of airflow from the vartical blower.

● Remote controller

[PAR-F25MA]

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

This switches between continuous operation and the timer operation.

TIMER button

This sets the ventilation fan speed.

AIR SPEED button

Press this button to switch the cooler electronic dry (dehumidify) automatic and heater modes.

OPERATION SWITCH button

This sets the room temparature The temparature setting can be performed in 1°C units

Setting range

Cooler 19°C to 30°C

TEMP ADJUSTMENT button

This sets of switches the current time. start time and stop time.

TIME SETTING button

(This button does not operate in this model)

This switches the horizontal fan motion ON and OFF.

LOUVER button

This swiches between the operation and stop modes each time it is pressed. The lamp on this button lights during operation.

ON/OFF button

This adjusts the vertical angle of the ventilation.

AIR DIRECTION button

Only press this button to perform an inspection check or test operation Do not use it for nomal operation.

CHECK-TEST RUN button

This resets the filter service indication display.

FILTER button

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

malfunction.

● 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 “HO” is displayed on room temperature indecation (For max.2minutes). Please wait until this “HO” indication disappear then start the operation.

M2A

CENTRALLY CONTROLLED display

This indicates when the unit is

controlled by optional features such as central control type remote controller.

TIMER display

This indicates when the continous

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.

CLOCK display

The current time , start time and stop time can be displayed in tensecond 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 bottom 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 amalfunction occurs.

POWER display

This lamp lights when electricity is supplied to the unit.

SET TEMPERATURE display

This displays the selected setting temperature.

FAN SPEED display

This displays the air direction.

ROOM TEMPERATURE display

The temperature of the suction air is displayed during operation. The display range is 8° to 39°C. The display flashes 8°C when the actual temperature is less than 8° and flashes 39°C when the actual temperature is greater than 39°C.

display

This display lights in the check mode or when a test operation is performed.

CHECK MODE

TEST RUN

FILTER display

This lamp lights when the filter need to be cleaned.

AIR DIRECTION display

The selected fan speed is displayed.

Item

SPECIFICATIONS

3-1. Specification

PCFY-P40VGM PCFY-P63VGM PCFY-P100VGM PCFY-P125VGM

kW 4.7 7.3 11.6 14.5

kW 5.2 8.3 13.0 16.3

kw 0.10 0.13 0.16 0.24

kW 0.10 0.13 0.16 0.24

A 0.46 0.60 0.73 1.10

%91 90 91 91

– Unit : Munsell<0.70Y 8.59/0.97>

mm 210 270

mm 1000 1310 1310 1620

mm 680

- Cross fin (Aluminum plate fin and copper tube)

- Sirocco fan

2 Sirocco fan ✕ 3 Sirocco fan ✕ 3 Sirocco fan ✕ 4

k/min 12-11-10-8 18-16-14-12 25-23-20-18 35-32-28-26

Pa 0

kW 0.054 0.07 0.09 0.15

PP honey comb

[mm 12.7<1/2”> 15.88<5/8”> 19.05<3/4”>

[mm 6.35<1/4”> 9.52<3/8”> 9.52<3/8”>

[mm PVC pipe VP-25 connectable

dB(A) 38-36-33-29 39-37-34-32 43-41-38-36 44-42-39-37

kg 27 34 37 43

V•Hz Single phase 220V-240V 50Hz

Note : w1. Rating conditions

Cooling: Indoor: 27°C DB. 19.5°C WB

outdoor: 35°C DB. 24°C WB

Heating: Indoor: 21°C

outdoor: 7°C DB. 6°C WB

w2. Air flow and the noise level are indicated as High - Middium1 - Middium2 - Low.

Power source

Cooling capacity

Heating capacity

Cooling

Heating

Cooling

Heating

Cooling

Heating

Exterior

(munsell symbol)

Height

Width

Depth

Heat exchanger

Air filter

Gas side

Refrigerant

pipe

dimensions

Drain pipe size

Noise level w2

Product weight

Liquid

side

Fan motor

Output

Type ✕ No

Air flow w2

External

static pressure

Dimensions

Electric characteristic

Power

consum

ption

current

Power factor

Fan

Power supply terminal block TB2 (L,N,;) 330V 30A

Transmission terminal block TB5 (M1,M2,S) 250V 20A

3-2. Electrical parts specifications

Model

Parts

name

Symbol PCFY-P40VGM PCFY-P63VGM PCFY-P100VGM PCFY-P125VGM

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

Room temperature thermistor TH21

Liquid pipe thermistor TH22

Resistance : 0:/15k' , 10:/9.6k' , 20:/6.3k' , 25:/5.4k' , 30:/4.3k' , 40:/3.0k

Gas pipe Thermistor TH23

Fuse FUSE 250V 6.3A

Fan motor MF

Inner-thermostat

Fan motor capacitor C1 3= x 440V 4= x 440V 4= x 440V 6= x 440V

Vane motor MV

Linear expansion valve LEV

(Indoor controller board)

(with Inner-thermostat)

OFF 130:±5:

MP35EA

DC12V

MP42EA

DC12V

DC12V Stepping motor drive { 3.2 (0~2000pulse)

DC12V Stepping motor drive { 5.2 (0~2000pulse)

4-Pole Output 54W D09B4P54MS

4-Pole Output 90W D10B4P90MS

4-Pole Output 150W D10B4P150MS

4-Pole Output 70W D09C4P70MS

OUTLINES AND DIMENSIONS4

INDOOR UNIT PCFY-P40VGM

(Suspension bolt pitch)

Air intake

When electrical box

is pulled down

Electrical box

Air outlet

Electrical box

(Drainage)

(1/2F)gas

(1/4F)liquid

( FRONT VIEW )

Ceiling

56506

161 90

904

933

157

210

226

241

201

182

180

680

254

150 17

70140

320 80

918

1000

983

6 ~ 7

928

525

42 179

161 32

175

131

352

171

138

263

1 Drainage pipe connection (26mm I.D.) 5 Refrigerant-pipe connection (liquid pipe side/flared connection)

2 Drainage pipe connection (for the left arrangement) 6 Knock out hole for upper drain pipe arrangement

3 Knock out hole for left drain-piping arrangement 7 Knock out hole for left drain pipe arrangement

4 Refrigerant-pipe connection (gas pipe side/flared connection) 8 Knock out hole for wining arrangement

NOTES:

1. Use M10 or W3/8 screws for anchor bolt.

2. Please be sure when installing the drain-up machine (option parts).

refrigerant pipe will be only upper drain pipe arrangement.

Unit : mm

PCFY-P63VGM

(Drainage)(Drainage)

(5/8F)gas(5/8F)gas

(3/8F)liquid(3/8F)liquid

Air intakeAir intake

Air outletAir outlet

(Suspension bolt pitch)(Suspension bolt pitch)

Electrical boxElectrical box

When electrical boxWhen electrical box

is pulled downis pulled down

CeilingCeiling

( FRONT VIEW ) VIEW )

Electrical boxElectrical box

506 56

90161

1240

157

1228

1310

1214

1290

210

226

241

201

182

180

680

254

150 17

70140

320 80

6 ~ 7

1235

416525

42 179

161 32

175

131

171

138

263

1 Drainage pipe connection (26mm I.D.) 5 Refrigerant-pipe connection (liquid pipe side/flared connection)

2 Drainage pipe connection (for the left arrangement) 6 Knock out hole for upper drain pipe arrangement

3 Knock out hole for left drain-piping arrangement 7 Knock out hole for left drain pipe arrangement

4 Refrigerant-pipe connection (gas pipe side/flared connection) 8 Knock out hole for wining arrangement

NOTES:

1. Use M10 or W3/8 screws for anchor bolt.

2. Please be sure when installing the drain-up machine (option parts).

refrigerant pipe will be only upper drain pipe arrangement.

Unit : mm

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