Mitsubishi Electric MSZ-GF60VE User manual

CONTENTS
1. TECHNICAL CHANGES ··································· 3
2. PART NAMES AND FUNCTIONS····················· 4
3. SPECIFICATION················································ 5
4. NOISE CRITERIA CURVES ······························ 6
5. OUTLINES AND DIMENSIONS ························ 7
6. WIRING DIAGRAM············································ 8
7. REFRIGERANT SYSTEM DIAGRAM ··············· 8
8. SERVICE FUNCTIONS ····································· 9
9. MICROPROCESSOR CONTROL ····················11
10. TROUBLESHOOTING····································· 18
11. DISASSEMBLY INSTRUCTIONS ···················· 32
SPLIT-TYPE AIR CONDITIONERS
SERVICE MANUAL No. OBH634
INDOOR UNIT
PARTS CATALOG (OBB634)
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
Models
MSZ-GF60VE -E1
MSZ-GF71VE -E1
Outdoor unit service manual
MUZ-GF·VE Series (OBH635)
MXZ-D·VA Series (OBH626)
MXZ-6C122VA (OBH584)

2
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.
<Preparation before the repair service>
Prepare the proper tools.
Prepare the proper protectors.
Provide adequate ventilation.
After stopping the operation of the air conditioner, turn off the power-supply breaker and remove the power plug.
Discharge the capacitor before the work involving the electric parts.
<Precautions during the repair service>
Do not perform the work involving the electric parts with wet hands.
Do not pour water into the electric parts.
Do not touch the refrigerant.
Do not touch the hot or cold areas in the refrigeration cycle.
When the repair or the inspection of the circuit needs to be done without turning off the power, exercise great caution not to
touch the live parts.
OBH634

3
MSZ-GF60VE - E1
MSZ-GF71VE - E1
1. New model
These models are compatible with the outdoor units with low standby power control.
Connecting these models to the MUZ-GF·VE-series outdoor units enables the low standby power control. Refer to the techni-
cal guide (OBT17) about the low standby power control.
These models may be connected to the MUZ-GF·VE series after once connected to the MXZ series and operated, for exam-
ple because of relocation. In that case, the MUZ-GF·VE series outdoor units will not operate without taking a step. Follow the
procedure "Deleting the memorized abnormal condition" described in 10-2.1.
TECHNICAL CHANGES
1
OBH634

4
ACCESSORIES
PART NAMES AND FUNCTIONS
2
MSZ-GF60VE MSZ-GF71VE
Model MSZ-GF60VE
MSZ-GF71VE
Installation plate 1
Installation plate fixing screw 4 × 25 mm 7
Remote controller holder 1
Fixing screw for 3.5 × 16 mm (Black) 2
Battery (AAA) for remote controller 2
Wireless remote controller 1
Felt tape (For left or left-rear piping) 1
Operation indicator lamp
Remote control receiving section
Emergency operation switch (E. O. SW)
Horizontal vane Vertical vane
Air outlet
Fan
Air filter
(Nano platinum filter)
Air inlet
Heat exchanger
Front panel
Air cleaning filter
(Electrostatic anti-allergy
enzyme filter, option)
Display section
Fan guard Remote controller
OBH634

5
Indoor model MSZ-GF60VE MSZ-GF71VE
Power supply Single phase 230 V, 50 Hz
Electrical data
Power input
1
Cooling W48 58
Heating 62 58
Running
current 1
Cooling A0.43 0.51
Heating 0.53 0.51
Fan motor
Model RC0J56-AF
Current 1Cooling A0.43 0.51
Heating 0.53 0.51
Dimensions W × H × D mm 1100 × 325 × 238
Weight kg 16
Special remarks
Air direction 5
Airflow
Cooling
Super High 1,242 1,164
+ LONG + POWERFUL
Super High
m3/h
1,098 1,068
High 936 924
Med. 804 798
Low 678 690
Silent 588 582
Heating
Super High 1,242 1,164
+ LONG + POWERFUL
Super High
m3/h
1,098 1,068
High
936 (882 2)
924
Med. 804 798
Low 678 690
Silent 588 612
Sound level
Cooling
Super High 52 53
+ LONG + POWERFUL
Super High
dB(A)
49
High 45
Med. 41
Low 37
Silent 29 30
Heating
Super High 52
+ LONG + POWERFUL
Super High
dB(A)
49
High 45
Med. 41
Low 37
Silent 29 30
Fan speed
Cooling
Super High 1,280 1,300
+ LONG + POWERFUL
Super High
rpm
1,090 1,140
High 960 1,010
Med. 850 900
Low 740 800
Silent 660 700
Heating
Super High 1,280 1,300
+ LONG + POWERFUL
Super High
rpm
1,090 1,140
High
960 (910 2)
1,010
Med. 850 900
Low 740 800
Silent 660 730
Fan speed regulator 5
Remote controller model SG12D
NOTE: Test conditions are based on ISO 5151.
Cooling: Indoor Dry-bulb temperature 27°C Wet-bulb temperature 19°C
Outdoor Dry-bulb temperature 35°C
Heating: Indoor Dry-bulb temperature 20°C
Outdoor Dry-bulb temperature 7°C Wet-bulb temperature 6°C
1 Measured under rated operating frequency.
2 For multi system.
SPECIFICATION
3
OBH634

6
NOISE CRITERIA CURVES
4
MSZ-GF60VE MSZ-GF71VE
Test conditions
Cooling: Dry-bulb temperature 27°C
Wet-bulb temperature 19°C
Heating: Dry-bulb temperature 20°C
INDOOR UNIT
WALL
MICROPHONE
0.8m
1m
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION SPL(dB(A)) LINE
Super High
FAN SPEED
HEATING
49
49
NC-10
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION SPL(dB(A)) LINE
Super High
FAN SPEED
HEATING
49
49
NC-10
Specifications and rated conditions of main electric parts
Fuse (F11) T3.15AL250V
Horizontal vane motor (MV1) 12 VDC
Vertical vane motor (MV2) 12 VDC
Varistor (NR11) S10K300E3K1 (ERZV14D471)
Terminal block (TB) 3P
Relay (X1)
OBH634

7
Unit: mm
OUTLINES AND DIMENSIONS
5
MSZ-GF60VE MSZ-GF71VE
1090 5
1100
45 238.5
258.5
3
280
225 225
129
239.5
281
44
49.5 500.5 439.5
199.5199.5
110.5
65
63
76 843 181
65
65
30
63
60
193
18
65
67
63
325
3
100
125
160
110
(
70° )
238
5
210
21.5
184
12
Piping
Insulation Ø50 O.D
Liquid line Ø9.52 - 0.5m (Flared connection Ø9.52)
Gas line Ø12 - 0.43m (Flared connection Ø15.88)
Drain hose Inslation Ø28 Connected part Ø16 O.D
Piping
Insulation Ø50 O.D
Liquid line Ø9.52 - 0.5m (Flared connection Ø6.35)
Gas line
Ø12 - 0.43m (Flared connection Ø15.88)
Drain hose Inslation Ø28 Connected part Ø16 O.D
Air out
Piping
Drain hose
11×26 Oblong hole 11×20 Oblong hole
Installation plate
Indoor unit
Wall hole
Ø 75
Air in Installation plate
MSZ-GF60VE
MSZ-GF71VE
OBH634

8
WIRING DIAGRAM
6
MSZ-GF60VE MSZ-GF71VE
REFRIGERANT SYSTEM DIAGRAM
7
Unit: mm
MSZ-GF60VE MSZ-GF71VE
Indoor
heat
exchanger
Flared connection
Room temperature
thermistor
RT11
Flared connection
Refrigerant pipe ø15.88
(with heat insulator)
Refrigerant pipe ø6.35 (MSZ-GF60VE)
ø9.52 (MSZ-GF71VE)
(with heat insulator)
Indoor coil
thermistor
RT12 (main)
Indoor coil
thermistor
RT13 (sub)
Refrigerant flow in cooling
Refrigerant flow in heating
OBH634

9
8-1. TIMER SHORT MODE
For service, the following set time can be shortened by short circuit of JPG and JPS on the electronic control P.C. board.
(Refer to 10-7.1.)
The set time for the ON/OFF timer can be reduced to 1 second for each minute.
After the breaker is turned on, the time for starting the compressor, which normally takes 3 minutes, can be reduced to 1
minute. Restarting the compressor, which takes 3 minutes, cannot be reduced.
8-2. 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:
•
•
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 accept 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 is turned OFF, or the power supply is shut down.
Please conduct the above setting once again after the power has restored.
MSZ-GF60VE MSZ-GF71VE
SERVICE FUNCTIONS
8
MSZ-GF60VE MSZ-GF71VE
J1 J2 NOTE: For modification, take out the batteries
and press the OPERATE/STOP (ON/
OFF) button 2 or 3 times at first.
After modification, put back the batteries
then press the RESET button.
OBH634

10
8-3. 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. “AUTO RESTART FUNCTION” automatically starts operation
in the same mode just before the shutoff of the main power.
Operation
If the main power has been cut, the operation settings remain.
After the power is restored, the unit restarts automatically according to the memory.
(However, it takes at least 3 minutes for the compressor to start running.)
How to disable “AUTO RESTART FUNCTION”
Turn off the main power for the unit.
Cut the jumper wire to JR77 on the indoor electronic control P.C. board. (Refer to 10-7.1.)
CN111
CN112
CN152
CN10A
Indoor electronic
control P.C. board
JR77
CN151
NOTE:
• The operation settings are memorized when 10 seconds have passed after the indoor unit was operated with the remote
controller.
• If main power is turned OFF or a power failure occurs while AUTO START/STOP timer is active, the timer setting is can-
celled.
• If the unit has been off with the remote controller before power failure, the auto restart function does not work as the
power button of the remote controller is OFF.
• To prevent breaker OFF due to the rush of starting current, systematize other home appliance not to turn ON at the same
time.
• When some air conditioners are connected to the same supply system, if they are operated before power failure, the
starting current of all the compressors may flow simultaneously at restart.
Therefore, the special counter-measures are required to prevent the main voltage-drop or the rush of the starting current
by adding to the system that allows the units to start one by one.
OBH634