Mitsubishi Electric MUY-TP-VF, MSY-TP35VF-E1, MSY-TP35VF-ET1, MSY-TP50VF-E1, MSY-TP50VF-ET1 Service 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 ··············· 9
8. SERVICE FUNCTIONS ··································· 10
9. MICROPROCESSOR CONTROL ····················11
10. TROUBLESHOOTING ····································· 17
11. DISASSEMBLY INSTRUCTIONS ···················· 27
MSY-TP35VF
-
E1
,
ET1
MSY-TP50VF
-
E1, ET1
Outdoor unit service manual
MUY-TP·VF Series (OBH817)
SERVICE MANUAL
No. OBH816
PARTS CATALOG (OBB816)
Models
INDOOR UNIT
2
<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.
Use the specied 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.
OBH816
3
1
TECHNICAL CHANGES
MSY-TP35VF -
E1
,
ET1
MSY-TP50VF -
E1
,
ET1
1. New model
OBH816
4
Operation indicator lamp
Remote control
receiving section
Horizontal vane
Air inlet
Air filter
Front panel
Air outlet
Heat exchanger
Emergency operation switch
ACCESSORIES
MSY-TP35VF MSY-TP50VF
Installation plate 1
Installation plate xing screw 4 × 25 mm 5
Felt tape (Used for left or left-rear piping) 1
2
PART NAMES AND FUNCTIONS
OBH816
5
Indoor model MSY-TP35VF MSY-TP50VF
Power supply Single phase 230 V, 50 Hz
Breaker Capacity A
10
Electrical data
Power input 1 (Total) Cooling W 760 1,450
Running current
1
(Total)
Cooling A 3.6 6.4
Power factor
1 (Total) Cooling % 91 98
Starting current
1 (Total) A 3.6 6.4
Fan motor
Model RC0J30-MD
Current
1 Cooling A 0.32
Dimensions W × H × D mm 923 × 305 × 250
Weight kg 12.5
Special remarks
Air direction 5
Airow
Cooling
Super High
m
3
/h
984 990
High 822
Med. 696
Low 606
Sound
level
Cooling
Super High
dB(A)
45
High 40
Med. 36
Low 31
Fan speed
Cooling
Super High
rpm
1,070 1,080
High 930
Med. 820
Low 740
Fan speed regulator 4
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
1 Measured under rated operating frequency.
Specifications and rated conditions of main electric parts
Fuse (F11) T3.15AL250V
Horizontal vane motor (MV) 12 V DC
Varistor
(NR11)
470 V
Terminal block (TB) 5P
3
SPECIFICATION
OBH816
6
4
NOISE CRITERIA CURVES
MSY-TP35VF MSY-TP50VF
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
NC-10
COOLING
FUNCTION
SPL(dB(A))
LINE
Super High
FAN SPEED
45
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
NC-10
COOLING
FUNCTION
SPL(dB(A))
LINE
Super High
FAN SPEED
45
INDOOR UNIT
WALL
MICROPHONE
0.8m
1m
Test conditions
Cooling : Dry-bulb temperature 27°C Wet-bulb temperature 19°C
OBH816
7
Unit: mm
5
OUTLINES AND DIMENSIONS
MSY-TP35VF MSY-TP50VF
Piping
Insulation Ø50 O.D
Liquid line Ø8 - 0.5m (Flared connection Ø6.35)
Gas line Ø12 - 0.45m (Flared connection Ø9.52)
Drain hose
Insulation Connected part Ø16 O.D
OBH816
8
6
WIRING DIAGRAM
MSY-TP35VF -E1 MSY-TP50VF -
E1
MSY-TP35VF -
ET1
MSY-TP50VF -
ET1
Terminal bloğu
Konektör
KANAT MOTORU
(YATAY)
TERMİK SİGORTA
(
102
Ý
4.5A
)
GÜÇ KAYNAĞI
DIŞ ÜNİTEYE
SİGORTA
3.
Sembolleri gösterir
2.
Sadece bakır besleme
kablosu kullanın
NOTLAR
:
1.
Dış ünite elektronik kablolaması için dış ünite
elektronik kablo devre şemasını referans alınız.
İÇ ÜNİTE GÜÇ
KARTI
İÇ ÜNİTE ELEKTRONİK
KONTROL KARTI
REAKTÖR
PARÇA ADI
SİGORTA
(T3.15AL250V)
FAN MOTORU
VARİSTÖR
ODA SICAKLIK
TERMİSTÖRÜ
BORU SICAKLIK
TERMİSTÖRÜ(ANA)
BORU SICAKLIK
TERMİSTÖRÜ(YARDIMCI)
TRAFO
TERMİNAL BLOĞU
KONTAKTÖR
TERMİNAL UCU
OBH816
9
MSY-TP35VF MSY-TP50VF
Unit: mm
7
REFRIGERANT SYSTEM DIAGRAM
Indoor
heat
exchanger
Flared connection
Room temperature
thermistor
RT 11
Flared connection
Refrigerant flow in cooling
Refrigerant pipe ø9.52
(with heat insulator)
Refrigerant pipe ø6.35
(with heat insulator)
Indoor coil
thermistor
RT12
Indoor coil
thermistor
RT13
OBH816
10
8-1. TIMER SHORT MODE
For service, the following set time can be shortened by bridging the timer short mode point on the electronic control P.C.
board. (Refer to 10-7.)
Set time : 3-minute → 3-second (It takes 3 minutes for the compressor to start operation. However, the starting time is
shortened by bridging the timer short mode point.)
NOTE: While the relay 52C is ON, the compressor starting time cannot be shortened.
MSY-TP35VF MSY-TP50VF
8
SERVICE FUNCTIONS
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 turned 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 the breaker from tripping 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.
JR77
Indoor electronic
control P.C. board
CN10ACN 111
CN151
CN112
CN110
8-2. 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.)
OBH816
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