Mitsubishi Electric MSZ-FA25VA User manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ····································2
2. PART NAMES AND FUNCTIONS······················3
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. TROUBLESHOOTING······································11
10. DISASSEMBLY INSTRUCTIONS·····················31
11. PARTS LIST······················································35
12. OPTIONAL PARTS···········································38
Wireless type
Models
MSZ-FA25VA - (WH)
MSZ-FA35VA - (WH)
E1
E1
No. OB371
SPLIT-TYPE, HEAT PUMPAIR CONDITIONERS
Indication of model name
MSZ-FA25VA -
MSZ-FA35VA - E1
E1
NOTE:
This service manual describes technical data of the indoor units.
•As for outdoor units MUZ-FA25VA- , MUZ-FA35VA- , MUZ-FA25VAH- and
MUZ-FA35VAH- , refer to service manual OB372.
•As for outdoor units MXZ-3A54VA- , MXZ-4A71VA- and MXZ-4A80VA- ,
refer to service manual OB377. E1E1E1
E1
E1E1E1
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2
1TECHNICAL CHANGES
MSZ-A09YV - ➔MSZ-FA25VA -
MSZ-A12YV - ➔MSZ-FA35VA - E1E1
E1E1
12. PLASMA DEODORIZING/AIR PURIFYING filter units have been added.
13. i-see Sensor has been added.
(i-see control operation and AREA setting have been added.)
14. Air cleaning filer has been removed.
15. Signal of remote controller has been changed. (It is not available for the conventional models.)
16. Symbol on terminal block has been changed (to S1/S2/S3).
NOTE:Do not remove the vane motor from the motor unit.
Do not disassemble the horizontal vane motor unit.
11. Front panel driving motor unit which opens and closes the front panel has been added.
Front panel opening/closing
output gear
NOTE: Do not disassemble the front panel driving motor unit.
Generalized stepping motor
10. The vertical vane motor unit has been added.
An external gear is added to the generalized stepping motor.
The unit is structured so that the driving torque and stopping torque would increase.
Generalized stepping motor
NOTE: Do not remove the vane motor from the motor unit.
Do not disassemble the vertical vane motor unit.
1. Indication of capacity has been changed.(BTU base ➔kW base)
2. Controller method between indoor and outdoor has been changed.
3. Power supply method has been changed (change to supply from outdoor unit).
4. Power supply cord has been removed.
5. Indoor electronic control P.C. board has been changed.
6. Position of terminal block has been changed.
7. Indoor fan motor has been changed. ( AC ➔DC)
8. Indoor heat exchanger has been changed.
9. The horizontal vane motor unit has been changed.
An external gear is added to the generalized stepping motor.
The unit is structured so that the driving torque and stopping torque would increase.
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3
PART NAMES AND FUNCTIONS
2
INDOOR UNIT
MSZ-FA25VA -
MSZ-FA35VA - E1
E1
Line flow fan
Air outlet
Vertical vane
Air inlet
Display section
Front panel
PLASMA DEODORIZING filter
Panel
Heat exchanger
Horizontal vane
Operation section
(When the front panel is opened)
Remote controller
POWER lamp
Remote control
receiving section
PLASMA AIR PURIFYING filter
Anti-mold air filter Fan guard
i-see Sensor
PLASMA/WASH lamp
AREA lamp
Emergency operation
switch
WASH reset switch
Auto front panel
When the unit starts operating, the
front panel opens automatically to
draw in air. When the unit stops
operating, the front panel closes
automatically.
AREA lamp indicate AREA setting
In AREA setting, the horizontal air flow
direction changes automatically according
to the detection of i-see Sensor which detects
the floor/ wall temperature to air-condition
the room evenly.
i-see control operation
i-see sensor constantly measure
floor/wall temperature to automatically
adjust to the set temperature by
estimating the temperature
actually perceived by a
person inside the room
("sensible temperature").
<Open> <Closed>
Auto front panel
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4
ACCESSORIES
1
2
3
4
5
6
7
Installation plate
Installation plate fixing screw 4 o25 mm
Remote controller holder
Fixing screw for 33.5 o1.6 mm (Black)
Battery (AAA) for remote controller
Wireless remote controller
Felt tape (Used for left or left-rear piping)
MSZ-FA25VA - E1
MSZ-FA35VA - E1
1
5
1
2
2
1
1
ON-TIMER button
CLOCK SET button
TIME SET buttons
FORWARD button
BACKWARD button
VANE CONTROL button
(Horizontal vane button)
OFF-TIMER button
i-see button
(This diagram shows an overall view.)
Open the front lid.
PLASMA button
AREA button
RESET button
WIDE VANE button
(Vertical vane button)
Signal transmitting section
Operation display section
Temperature buttons
OPERATE/STOP
(ON/OFF) button
FAN SPEED CONTROL button
OPERATION SELECT button
ECONO COOL button
Indication of
remote controller
model is on back
MSZ-FA25VA -
MSZ-FA35VA - E1
E1
REMOTE CONTROLLER
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5
SPECIFICATION
3
T3.15AL250V
NSEJ001DA1 12V DC 100"(at 25˚C)
MP20Z 12V DC 300"(at 25˚C)
MSBPC20M16 12V DC 250"(at 25˚C)
MSBPC20M11 12V DC 300"(at 25˚C)
ERZV14D471
A2TPMI334F0V50HSOBA060P5L1J4S 5V DC
3P
INDOOR UNIT
Item Model
Fuse
Front panel driving motor
i-see Sensor motor
Horizontal vane motor
Vertical vane motor
Varistor
i-see Sensor
Terminal block
MSZ-FA25VA - E1 MSZ-FA35VA - E1
(F11)
(MP)
(MT)
(MV1)
(MV2)
(NR11)
(RR)
(TB)
Specifications and rating conditions of main electric parts
MSZ-FA25VA - E1 MSZ-FA35VA - E1
Indoor model
Function
Power supply Single phase
230V,50Hz
10
0.25
33
—
57
0.25
RC0J40-EB
780O298O198
10
4
42
36W/29W/21W
4
10
10
10
KM05A
Cooling
594
474W/354W/252W
1,220
1,010W/800W/610W
Heating
612
498W/384W/264W
1,250
1,050W/850W/640W
Single phase
230V,50Hz
10
0.25
33
—
57
0.25
RC0J40-EB
780O298O198
10
4
42
36W/29W/22W
4
10
10
10
KM05A
Cooling
594
474W/354W/258W
1,220
1,010W/800W/630W
Heating
612
498W/384W/276W
1,250
1,050W/850W/660W
Air flow(Super High)
Air flow(HighW/Med.W/LowW)
Power outlet
Running current ✽1
Power input ✽1
Auxiliary heater
Power factor ✽1
Fan motor current ✽1
Model
Dimensions WOHOD
Weight
Air direction
Sound level(Super High)
Sound level(HighW/Med.W/LowW)
Fan speed(Super High)
Fan speed(HighW/Med.W/LowW)
Fan speed regulator
Thermistor RT11(at25:)
Thermistor RT12(at25:)
Thermistor RT13(at25:)
Remote controller model
K/h
K/h
A
A
W
A(kW)
%
A
mm
kg
dB(A)
dB(A)
rpm
rpm
k"
k"
k"
Electrical data
Fan motor
Special remarks
Capacity
MSZ-FA25VA - E1 MSZ-FA35VA - E1
Indoor model
Function Cooling
546
450W/348W/252W
1,130
960W/790W/610W
Heating
540
420W/372W/264W
1,120
910W/830W/640W
Cooling
516W/390W/258W
1,080W/860W/630W
Heating
522W/402W/276W
1,090W/880W/660W
Air flow(Super High)
Air flow(HighW/Med.W/LowW)
Sound level(Super High)
Sound level(HighW/Med.W/LowW)
Fan speed(Super High)
Fan speed(HighW/Med.W/LowW)
K/h
K/h
dB(A)
dB(A)
rpm
rpm
Special remarks
Capacity
42
36W/29W/21W
642
42
36W/29W/22W
1,300
NOTE : Test conditions are based on ISO 5151
Cooling : Indoor Dry-bulb temperature 27:Wet-bulb temperature 19:
Outdoor Dry-bulb temperature 35:Wet-bulb temperature 24:
Heating : Indoor Dry-bulb temperature 20:Wet-bulb temperature 15:
Outdoor Dry-bulb temperature 7:Wet-bulb temperature 6:
Refrigerant piping length (one way): 5m
wReference value
✽1 Measured under rated operating frequency.
When outdoor unit is MXZ type.
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