Mitsubishi MSZ-A09YV-E1, MSZ-A12YV-E1 Service Manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

No. OB327

SERVICE MANUAL

Wireless type

Models

MSZ-A09YV - E1 (WH)

MSZ-A12YV - E1 (WH)

CONTENTS

	1. PART NAMES AND FUNCTIONS··········
	2. SPECIFICATION·················
	3. NOISE CRITERIA CURVES ············
	4. OUTLINES AND DIMENSIONS ···········
	5. WIRING DIAGRAM ················
Indication of model name	6. REFRIGERANT SYSTEM DIAGRAM ········
MSZ-A09YV - E1	7. SERVICE FUNCTIONS ··············
MSZ-A12YV - E1	8. TROUBLESHOOTING···············
	9. DISASSEMBLY INSTRUCTIONS ··········
	10. PARTS LIST···················
	11. OPTIONAL PARTS ················

NOTE:

This service manual describes technical data of the indoor units.

•Refer to the service manual OB328 when MSZ-A09YV- E1 or MSZ-A12YV- E1 is connected with MUZ-A09YV- E1 , MUZ-A12YV- E1 , MUZ-A09YVH- E1 or MUZ-A12YVH- E1 .

•Refer to the service manual OB319 when MSZ-A09YV- E1 or MSZ-A12YV- E1 is connected with MXZ-A18WV- E1 , MXZ-A26WV- E1 or MXZ-A32WV- E1 as multi system units.

1 PART NAMES AND FUNCTIONS

INDOOR UNIT

MSZ-A09YV - E1

MSZ-A12YV - E1

	Air cleaning filter	Front panel
	(white bellows type)	Air inlet
	Heat exchanger
	Panel	to Breaker
	Catechin air filter	Power supply cord
	(With deodorizer)
		Remote control
	Air outlet	receiving section
	Vertical vanes
	Line flow fan	Remote controller
	Horizontal vane
	Operation section	Display section
	(When the front panel is opened)

	Operation indicator lamp
Emergency operation switch	Remote control
	receiving section

ACCESSORIES

INDOOR UNIT

		MSZ-A09YV - E1
		MSZ-A12YV - E1
1	Installation plate	1
2	Installation plate fixing screw 4 o 25 mm	5
3	Remote controller holder	1
4	Fixing screw for 3 3.5 o 1.6 mm (Black)	2
5	Battery (AAA) for remote controller	2
6	Wireless remote controller	1
7	Felt tape (Used for left or left-rear piping)	1

2

MSZ-A09YV - E1

MSZ-A12YV - E1

Signal transmitting section

Operation display section

OPERATE /STOP (ON /OFF) button

Open the front lid.

VANE CONTROL button

OPERATION SELECT button

ECONO COOL button

RESET button

		PM
		AM
ON/OFF	TOO	TOO
	WARM	COOL

TEMPERATURE buttons

Indication of remote controller model

		AM
ON/OFF	TOO	TOO
	WARM	COOL

I FEEL

HEAT AUTO

DRY COOL

MODE

ECONO COOL

		FAN SPEED CONTROL button
FAN	STOP
		OFF-TIMER button
VANE	START
		ON-TIMER button
	HR.	HR. button
	MIN.	MIN. button
		(TIME SET button)
RESET CLOCK		CLOCK SET button

3

2

SPECIFICATION

Indoor model

MSZ-A09YV - E1

MSZ-A12YV - E1

Function

Cooling

Heating

Cooling

Heating

Power supply

Single phase

Single phase

230V,50Hz

230V,50Hz

Capacity Air flow(High/Med.W/LowW)

K /h

504/360W/222W

564/402W/246W

630/462W/288W

642/474W/312W

Power outlet

A

10

10

Electrical

Running current 1

A

0.17

0.19

data

Power input Rated frequency

W

35

40

Auxiliary heater

A(kW)

—

—

Power factor 1

%

88

95

94

94

Fan motor current

1

A

0.17

0.19

motor

Model

RC4V19-LA

RC4V19-KA

Fan

Winding

"

WHT-BLK 413

WHT-BLK 316

resistance(at20:)

BLK-RED 334

BLK-RED 299

Dimensions WOHOD

mm

815O278O244

815O278O244

Weight

kg

9

10

Air direction

5

5

Sound level(High/Med.W/LowW)

dB(A)

37/29W/21W

38/30W/21W

39/31W/22W

38/30W/22W

Special

remarks

Fan speed(High/Med.W/LowW)

rpm

1,010/770W/540W

1,110/840W/580W

1,030/800W/570W

1,050/820W/600W

Thermistor RT11(at25:)

k"

10

10

Fan speed regulator

3

3

Thermistor RT12(at25:)

k"

10

10

Thermistor RT13(at25:)

k"

10

10

Remote controller model

KG04A

KG04A

NOTE : Test conditions are based on ISO 5151

Cooling : Indoor

DB27: WB19:

Outdoor DB35: WB 24:

Heating : Indoor

DB 20: WB15:

Outdoor DB 7: WB 6:

Refrigerant piping length (one way): 5m

w Reference value

1 Measured under rated operating frequency.

Specifications and rating conditions of main electric parts

INDOOR UNIT

Item

Model

MSZ-A09YV - E1

MSZ-A12YV - E1

Indoor fan capacitor

(C11)

1.5+ 440V

Fuse

(F11)

250V 3.15A

Thermal fuse

(F12)

93:5A 250V

Vane motor

(MV)

MSBPC20 12V 250"

Varistor

(NR11)

ERZV10D471

Solid state relay

(SR141)

S201DH1Y

Terminal block

(TB)

5P

Contactor

(52C)

JM1aN-ZTMP-DC12V

Indoor fan motor thermal fuse

136:i3: 2A

4

3 NOISE CRITERIA CURVES

MSZ-A09YV - E1

MSZ-A12YV - E1

FAN SPEED FUNCTION SPL(dB(A))

LINE

COOLING 37

High

HEATING 38

FAN SPEED FUNCTION SPL(dB(A))

LINE

COOLING 39

High

HEATING 38

Test conditions,

Test conditions,

	Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19:
	Heating : Dry-bulb temperature 20: Wet-bulb temperature 15:										90
BAR	90									BAR
MICRO	80									MICRO	80
0.0002	70								NC-70	0.0002	70
dB re	60									dB re	60
LEVEL,										LEVEL,
									NC-60
	50										50
PRESSURE										PRESSURE
									NC-50
	40										40
									NC-40
SOUND										SOUND
	30										30
BAND									NC-30	BAND
	20	APPROXIMATE									20
OCTAVE										OCTAVE
		THRESHOLD OF
		HEARING FOR							NC-20
		CONTINUOUS
	10	NOISE									10
		63	125	250	500	1000	2000	4000	8000

Cooling : Dry-bulb temperature 27: Wet-bulb temperature 19: Heating : Dry-bulb temperature 20: Wet-bulb temperature 15:

							NC-70
							NC-60
							NC-50
							NC-40
							NC-30
APPROXIMATE
THRESHOLD OF
HEARING FOR							NC-20
CONTINUOUS
NOISE
63	125	250	500	1000	2000	4000	8000

BAND CENTER FREQUENCIES, Hz

BAND CENTER FREQUENCIES, Hz

INDOORUNIT

WALL

1m

0.8m

MICROPHONE

5

4 OUTLINES AND DIMENSIONS

MSZ-A09YV - E1

INDOOR UNIT	81.5

783	Installation
	plate
	Indoor unit
	41

Unit : mm

133.5		4.5
	231.5	271
2.5	42

815

81.5

326

326

81.5

278

60	606	149	more
58		19	7 or
		Power supply cord	30
162		Lead to right 1.0m
		Lead to left 0.3m

Air out

Wireless remote controller

	Wall hole [65
242	5
Air in	Installation plate
	Liquid line [6.35-0.5m
	Gas line [9.52-0.43m
	{Insulation [37 O.D
	[21 I.D
	90
	Drain hose [16
	110 (Connected part O,D)
244	Insulation [28

MSZ-A12YV - E1

Unit : mm

INDOOR UNIT	161.5			161.5		17.5
783	Installation
	plate				218.5	258
	Indoor
	unit
815	41			2.5	42
	81.5	326	326	81.5

278

60	606	149	more
58		19	7 or
162		Power supply cord	30
		Lead to right 1.0m

Lead to left 0.3m

Air out

Wireless remote controller

242	5	Wall hole [65
Air in		Installation plate

{Gas line [9.52-0.43m Insulation [37 O.D

[21 I.DLiquid line [6.35-0.5m

	90	Drain hose [16
	110
		(Connected part O,D)
	244	Insulation [28

6

5

WIRING DIAGRAM

MSZ-A09YV - E1

MSZ-A12YV - E1

MODELS WIRING DIAGRAM

INDOOR UNIT

RT13

TO OUTDOOR

CN

LTB

UNIT

BRN

112

RT12

CONNECTING

12V

3

RED

CN

RT11

CN201

T11

111

3

N

F12

3

3

BLK

1

BLU

BLU

52C

NR11

CN

GRY

230V~

1

2

4

2

BLU

BLU

121

YLW

2

2

1

3

MF

WHT

C11

1

BRN

4

LD103

F11

SR141 SR142

3

WHT

5

RED

5

6

CN

CN

CN

CN

GRN

CN211

151

1R1

109

125

GRN/YLW

ELECTRONIC CONTROL P.C. BOARD

POWER

3

2

SUPPLY

5

2

5

CORD

~/N 230V

FOR MXZ type

L

POWER MONITOR

50Hz

SAFETY

RECEIVER

12V

3

MV

PE

DEVICE (FAN)

TO OUTDOOR

N

P.C. BOARD

UNIT

2

REMOTE

CONNECTING

CONTROLLER

CIRCUIT BREAKER

SYMBOL	NAME	SYMBOL	NAME	SYMBOL	NAME
C11	INDOOR FAN CAPACITOR	NR11	VARISTOR	SR142	SOLID STATE RELAY
F11	FUSE (3.15A)	RT11	ROOM TEMPERATURE THERMISTOR	T11	TRANSFORMER
F12	THERMAL FUSE (93:)	RT12	INDOOR COIL THERMISTOR (MAIN)	TB	TERMINAL BLOCK
MF	INDOOR FAN MOTOR (INNER FUSE)	RT13	INDOOR COIL THERMISTOR (SUB)	52C	CONTACTOR
MV	VANE MOTOR	SR141	SOLID STATE RELAY

NOTE:1. About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing.

2.Use copper conductors only. (For field wiring)

3.Symbols below indicate.

/: Terminal block, : Connector

6 REFRIGERANT SYSTEM DIAGRAM

MSZ-A09YV - E1

MSZ-A12YV - E1

Unit:mm

INDOOR UNIT

Refrigerant pipe [9.52

INDOOR UNIT

Refrigerant pipe [9.52

(with heat insulator)

(with heat insulator)

Indoor coil

Indoor coil

Indoor

thermistor

Indoor

thermistor

heat

RT12(main)

heat

RT12(main)

exchanger

Flared connection

exchanger

Flared connection

Indoor coil

Indoor coil

thermistor

thermistor

RT13(sub)

RT13(sub)

Room temperature

Room temperature

thermistor

thermistor

RT11

RT11

Flared connection

Flared connection

Refrigerant flow in cooling

Refrigerant pipe

Refrigerant pipe

[6.35

[6.35

Refrigerant flow in heating

(with heat insulator)

(with heat insulator)

7

7 SERVICE FUNCTIONS

MSZ-A09YV - E1

MSZ-A12YV - E1

7-1. TIMER SHORT MODE

For service, set time can be shortened by short circuit of JPG and JPS the electronic control P.C. board. The time will be shortened as follows. (Refer to page 18.)

Set time : 1-minute 1-second

Set time : 3-minute 3-second (It takes 3 minutes for the compressor to start operation. However, the starting time is shortened by short circuit of JPG and JPS.)

7-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION

A maximum of 4 indoor units with wireless remote controllers can be used in a room.

In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be modified according to the number of the indoor unit.

How to modify the remote controller P.C. board

Remove batteries before modification.

The board has a print as shown below :

Remote controller model : KG04A	J2

NOTE : For remodelling, take out the batteries and press the OPERATE/STOP(ON/OFF) button twice or 3 times at first.

After finish remodelling, put back the batteries then press the RESET button.

J1

The P.C. board has the print “J1” and “J2”. Solder “J1” and “J2” according to the number of indoor unit as shown in Table 1.

After modification, press the RESET button.

Table 1

	1 unit operation	2 units operation	3 units operation	4 units operation
No. 1 unit	No modification	Same as at left	Same as at left	Same as at left
No. 2 unit	–	Solder J1	Same as at left	Same as at left
No. 3 unit	–	–	Solder J2	Same as at left
No. 4 unit	–	–	–	Solder both J1 and J2

How to set the remote controller exclusively for particular indoor unit.

After you turn the breaker ON, the first remote controller that sends the signal to the indoor unit will be regarded as the remote controller for the indoor unit.

The indoor unit will only accepts the signal from the remote controller that has been assigned to the indoor unit once they are set.

The setting will be cancelled if the breaker has turned off, or the power supply has shut down. Please conduct the above setting once again after the power has restored.

7-3. AUTO RESTART FUNCTION

When the indoor unit is controlled with the remote controller, the operation mode, the set temperature, and the fan speed are memorized by the indoor electronic control P.C. board. The “AUTO RESTART FUNCTION” sets to work the moment power has restored after power failure. Then, the unit will restart automatically.

However if the unit is operated in “I FEEL CONTROL” mode before power failure,

the operation is not memorized. In “I FEEL CONTROL” mode, the operation is decided by the initial room temperature.

8