Mitsubishi PCFY-40VGM, PCFY-63VGM, PCFY-100VGM, PCFY-125VGM Service Manual

1997

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

No. OC122

REVISED EDITION-A

TECHNICAL & SERVICE MANUAL

Series PCFY Ceiling Suspended

<Indoor unit>

Models PCFY-40VGM

PCFY-63VGM

PCFY-100VGM

PCFY-125VGM

		CONTENTS
		1.	FEATURES ···········································2
		2. PART NAMES AND FUNCTIONS ········4
		3.	SPECIFICATION···································6
		4. OUTLINES AND DIMENSIONS············8
		5.	WIRING DIAGRAM·····························12
		6. REFRIGERANT SYSTEM DIAGRAM ···13
		7. TROUBLE SHOOTING·······················14
	INDOOR UNIT	8. DISASSEMBLY PROCEDURE···········19
		9.	PARTS LIST········································23

Revision

•Parts List has been partially modified.

•Please destroy OC122.

1 FEATURES

Series PCFY Ceiling Suspended

Indoor unit

	Models	Cooling capacity / Heating capacity
		W	Kcal/h
	PCFY-40VGM	4,700/5,200	4,000/4,500
	PCFY-63VGM	7,300/8,300	6,300/7,100
	PCFY-100VGM	11,600/13,000	10,000/11,200
	PCFY-125VGM	14,500/16,300	12,500/14,000

1. AIR OUTLET

New PCFY series models have 1 air outlet (auto vane switching of horizontal air flow / down flow by switched by auto vane) instead of 2 (horizontal, and down frows).

					Protruding portion A
	2. EASY TO CLEAN ; FLOCKLESS VANE				Unifies the air speed
			B		with the vane.
	With our original air current control mechanism, a flockless vane is				+
					Protruding portion B
	newly adapted.	Flockless vane
					Sending the air to the upper
	The flockless vane prevents the condensation on the vane.
				A	area of the vane
	By changing the vane to the flockless type, the unit can be cleaned				=
	much easier with mild household detergent.				Prevents the air comes from
			Air outlet
					outside the unit

3. NEW MATERIALS FOR BETTER OIL RESISTANCE

We have changed the materials of grill, filer, fan and fan casing from ABS to P.P. (polypropylene) for better oil resistance. As a result, oil crazing is cut in half.

2

4. SIMPLIFIED INSTALLATION WORK (DIRECT SUSPENDING METHOD)

Simplified the installation work by changing the suspending method to the direct suspending method (suspending the unit directly from the suspension fixture).

In this way, the unit can be attached to the suspension fixture without removing the installation parts off (Only the side cover is removed). This method is much simpler than the ¨One-time installation method¨.

5. IMPROVING EFFICIENCY OF PIPING WORK

1 Removed the knockout work by separating the piping space from the air outlet for efficiency of the piping work.

2 Improved the flexibility by making it possible for drainage pipe to exit not only from the right side back but also from the left side back.

Back panel	Side panel

G L

L Open G

D Open

U-cut

D

L : Liquid pipe

G: Gas pipe

D: Drain pipe

Drain pan

Rubber plug

Insulation cover Joint coupliy (attached) (attached)

Insulation		Drain pipe
cover	Band	(purchased locally)
	(attached)

Knockout work is needed for the top part. When optional drain-up machine is installed, the refrigerant pipe exits out from the top.

Please move the rubber plug for the unit to the right joint when drainage pipe exits from the left side.

6.ADVANCED MICROPROCESSOR [PAR-F25MA]

(1)Easy to use microprocessor 1)Ultra-thin remote controller

The streamlinde,square controller is designed to blend well with any interior.Also,the sophisticated microproceeor allows you to easily carry out a wide range of operations.

2)Attractive liquid crystal display(LCD)

The unit´s operation mode,set temperature,room temperature,timer setting,fan speed,louver oper-ation,and air flow direction are displayed on the remote controller´s easy-to-read Liquid Crystal Dis-play(LCD).

3)Convenient 24-hour ON-OFF timer

The timer switches Mr.SLIM on and off automati-cally at the time you set. Once the timer is set,the remaining time is shown on the LCD.

3

2 PART NAMES AND FUNCTION

● Indoor (Main) Unit

Left/right guide vanes

Air outlet

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	Air intake
	Intake grille

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.
● Operation buttons
TIMER button	TIME SETTING button		AIR SPEED button
This switches between continuous	This sets of switches the current time.		This sets the ventilation fan speed.
operation and the timer operation.	start time and stop time.
OPERATION SWITCH button			ON/OFF button
Press this button to switch the cooler			This swiches between the operation
electronic dry (dehumidify) automatic and			and stop modes each time it is
heater modes.			pressed. The lamp on this button
			lights during operation.
			AIR DIRECTION button
TEMP ADJUSTMENT button			This adjusts the vertical angle of the
			ventilation.
This sets the room temparature The
temparature setting can be performed in 1°C			FILTER button
units
Setting range			This resets the filter service indication
Cooler 19°C to 30°C			display.
LOUVER button		CHECK-TEST RUN button
This switches the horizontal fan		Only press this button to perform an
motion ON and OFF.		inspection check or test operation Do
(This button does not operate in this		not use it for nomal operation.
model)

4

● Display

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.

	CLOCK display	In this display example on the
		bottom left, a condition where all
	The current time , start time and stop	display lamps light is shown for
	time can be displayed in tensecond	explanation purposes although this
	intervals by pressing the time switch	differs from actual operation.
	button. The start time or stop time is
	always displayed during the timer
	operation.
		AIR DIRECTION display
		The selected fan speed is displayed.
		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.
		Operation lamp
	4	This lamp lights during operation,
		goes off when the unit stops and
		flashes when amalfunction occurs.
		CHECK MODE
		display
		TEST RUN
		This display lights in the check mode
		or when a test operation is
		performed.

CHECK display
This indicates when a malfunction		SET TEMPERATURE display		POWER display
has occurred in the unit which should		This displays the selected setting		This lamp lights when electricity is
be checked.
		temperature.		supplied to the unit.

Caution

FILTER display

This lamp lights when the filter need to be cleaned.

●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.

5

3 SPECIFICATIONS

3-1. Specification

Item

		Power		V•Hz
	Cooling capacity			kW
	Heating capacity			kW
	charocteristic	Power	Cooling	kw
		supply Heating		kW
		Startin Cooling		A
		g		A
	Electric	current Heating
		factor	Heating	%
		Power	Cooling	%
		Exteior		–
	(munsell symbol)
			Height	mm
	Outdimensions		Width	mm
			Depth	mm
	Heat exchanger			-
		Fan No		-
	F	Air flow #3		k/min
	a	External		Pa
	n
		static pressure
		Fan motor		kW
		Output
		Insulator

Air filter

	Gas	[mm
Pipe	side
dimensions	Liquid	[mm
	side
Drain pipe size		[mm
Noise level		dB(A)
Product weight		kg

PCFY-40VGM		PCFY-63VGM		PCFY-100VGM		PCFY-125VGM
		Single phase 220V-240V 50 HZ
4.7		7.3				14.5
				11.6
5.2		8.3		13.0		14.5
0.10		0.13		0.16		0.24
0.10		0.13		0.16		0.24
0.43		0.55		0.70		1.06
0.43		0.55		0.70		1.06
92		93		92		92
92		93		92		92
		Unit : Munsell<0.70Y 8.59/0.97>
210					270
1000		1310		1310
						1620
			680
			crosfin
Sirocco fan 2		Sirocco fan 3		Sirocco fan 3		Sirocco fan 4
12-11-10-8		18-16-14-12		25-23-20-18		35-32-28-26
			0
0.054		0.07
				0.09		0.15
		Polyethylene sheet
		PP honey comb
12.7<1/2”>		15.88<5/8”>		19.05<3/4”>
6.35<1/4”>		9.52<3/8”>		9.52<3/8”>
		PVC pipe VP-25 connectable
38-36-33-29		39-37-34-32
				43-41-38-36		44-42-39-37
27		34		37		43

Note 1.	Rating conditions(JIS B 8616)
	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
Note 2.	Air flow and the noise level are indicated as High-Middium 1-Middium 2-Low.

6

3-2. Electrical parts specifications

Parts	Model	Symbol	PCFY-40VGM	PCFY-63VGM	PCFY-100VGM	PCFY-125VGM
name
Tranrsformer		T		(Primary) 50/60Hz 220-240V (Secondary) (18.4V 1.7A)
Room temperature
thermistor		TH21	Resistance: 0:/15k',10:/9.6k',20:/6.3k',25:/5.4k',30:/4.3k',40:/3.0k'
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	Resistance: 0:/15k',10:/9.6k',20:/6.3k',25:/5.4k',30:/4.3k',40:/3.0k'
Fuse		FUSE		250V 6.3A
(Indoor controller board)
Fan motor		MF1,2	4-Pole OUTPUT 54W 4-Pole Output 70W		4-Pole Output 90W	4-Pole Output 150W
(with Inner-thermostat)			D09B4P54MS	D09B4P70MS	D10B4P90MS	D10B4P150MS
			Inner-thermostat	OFF 130:±5:
Fan motor capacitor		C1	3uF x 440V	4uF x 440V	4uF x 440V	6uF x 440V
Vane motor		MV	MP35EA	MP35EA	MP42EA
			DC12V	DC12V	DC12V
			DC12V Stepping motor		DC12V Stepping motor drive
Linear expansion valve		LEV	drive		{ 5.2 (0~2000pulse)
			{ 3.2 (0~2000pulse)
					EDM-804ME
			EDM-402ME
Power supply
terminal block		TB2		(L,N,;) 330V 30A
Transmission
terminal block		TB5		(M1,M2,S) 330V 30A

7

8						5 Refrigerant-pipe connection (liquid pipe side/flared connection)										40VGM-PCFY	UNITINDOOR
1 Drainage pipe connection (26mm I.D.)
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.
								ceiling			6
	2	Electrical box [FRONT VIEW]			5	1 4				17
3		32		8				Gapto		150		80
							1
			Celling
179		161		3879		131	175			140	70	320
42				38	86		46
6-7
					138
					171
When electrical					263
			525		352
box is pulled								933 (suspension bolt pitch)
			928											85
down
									983
		Electrical box 70												15
											81	180	210	157
			1								76
				226	2			Air outlet	904					182	(3/8F) liquid

1000	201	(5/8F) gas
	241	(Drainage)
	680
	254
Air intake
918

DIMENSIONS AND OUTLINES 4

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.

2		Electnical box	[ FRONT VIEW ]	5	1 4		ceiling
							to
3			8
		32				1	Gap
			Celling
179		161	3879		131	175
42	6~7		38	86		46
				138
				171
				263
When electrical		525		416
box is pulled			1235
down

Electrical box	70

1

Air outlet

226 2

Air intake

150 17

140

1240 (suspension bolt pitch)

1290

1214

1310

1228

6

	80
70	320

85

15

										157
	76					180	210
				81

680

254

182 (3/8F liquid)

201 (5/8F gas)

241 (Drainage)

63VGM-PCFY

9

10

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

		Electnical box	[ FRONT VIEW ]			1	4	ceiling
	2				5			to
		93		8
3			Celling				1	Gap
239		160		38 140		192	236
42		6~7		38			45
						86
						138

	When electrical				171
	box is pulled
		263
	down
	525	687

1235

70

Electrical box

1

229					2			Air outlet

Air intake

	6
17
150		80
140	70	320

1240 (suspension bolt pitch)

87 16

								217
						270
	96		207
	81

1214

1310

680

254

1228

182 (3/8F liquid)

198 (5/8F gas)

245 (Drainage)

100VGM-PCFY

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.

2

3

239

42

When electrical box is pulled down

Electrical box		[ FRONT VIEW ]		5	1	4	ceiling
			8				Gapto
	93	Celling				1
	160		38 140		192	236
6~7			38			45
					86
					138
					171

263

525

687

1545

70

Electrical box

1

								Air outlet
229					2

Air intake

	6
18
150		80
140	70	320

1547(suspension bolt pitch)

87

16

81 96	207	270	217
1524			182
1620			198
			245
	680

254

1535

125VGM-PCFY

(3/8F liquid)

(3/4F gas)

(Drainage)

11