Mitsubishi Electric MUZ-HR VF Series User manual

Models
MSZ-HR25VF -E1 , ER1 , ET1
MSZ-HR35VF -E1 , ER1 , ET1
MSZ-HR42VF -E1 , ER1 , ET1
MSZ-HR50VF -E1 , ER1 , ET1
MSZ-HR60VF -E1 , ER1 , ET1
MSZ-HR71VF -E1 , ER1 , ET1
INDOOR UNIT
No. OBH822
REVISED EDITION-B
Outdoor unit service manual
MUZ-HR∙VF Series (OBH823)
MXZ-HA∙VF Series (OBH828)
PARTS CATALOG (OBB822)
CONTENTS
1. TECHNICAL CHANGES ······························2
2. PART NAMES AND FUNCTIONS··················3
3. SPECIFICATION ········································4
4. NOISE CRITERIA CURVES··························6
5. OUTLINES AND DIMENSIONS·····················8
6. WIRING DIAGRAM·····································9
7. REFRIGERANT SYSTEM DIAGRAM ··········· 10
8. SERVICE FUNCTIONS······························ 11
9. MICROPROCESSOR CONTROL ················ 13
10. TROUBLESHOOTING ······························· 17
11. DISASSEMBLY INSTRUCTIONS················· 34
SERVICE MANUAL
MSZ-HR25VF
Revision B:
• MSZ-HR60/71VF- ER1 have been added.
OBH822 REVISED EDITION-A is void.

2
Use the specied 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.
TECHNICAL CHANGES
1
MSZ-HR25VF - E1 , ER1 , ET1
MSZ-HR35VF - E1 , ER1 , ET1
MSZ-HR42VF - E1 , ER1 , ET1
MSZ-HR50VF - E1 , ER1 , ET1
MSZ-HR60VF - E1 , ER1 , ET1
MSZ-HR71VF - E1 , ER1 , ET1
1. New model
<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.
Revision A:
• MSZ-HR60/71VF- E1 , ET1 have been added.
Revision B:
• MSZ-HR60/71VF- ER1 have been added.
OBH822B

3
PART NAMES AND FUNCTIONS
2
MSZ-HR25VF MSZ-HR35VF MSZ-HR42VF MSZ-HR50VF
ACCESSORIES
Model
MSZ-HR25VF MSZ-HR35VF
MSZ-HR42VF MSZ-HR50VF
MSZ-HR60VF MSZ-HR71VF
Installation plate 1
Installation plate xing screw 4 × 25 mm 5
Wireless remote controller 1
Felt tape (For left or left-rear piping) 1
Battery (AAA) for remote controller 2
Remote controller
Heat exchanger
Air inlet
Front panel
Air lter
Air outlet
Operation indicator lamp
Emergency operation switch
Remote control receiving section
Air cleaning lter
Horizontal vane
Remote controller
MSZ-HR60VF MSZ-HR71VF
Air inlet
Heat exchanger
Front panel
Air lter
Air cleaning lter
Horizontal vane Air outlet
Remote control receiving section
Operation indicator lamp
Emergency operation switch
(Silver-ionized air purier lter, option)
(Silver-ionized air purier lter,
option)
OBH822B

4
SPECIFICATION
3
Indoor model MSZ-HR25VF MSZ-HR35VF MSZ-HR42VF MSZ-HR50VF
Power supply Single phase 230 V, 50 Hz
Electrical data
Power input
*1
Cooling W20 28 32 39
Heating 20 28 32 39
Running
current *1
Cooling A0.20 0.27 0.30 0.36
Heating 0.20 0.27 0.30 0.36
Fan motor
Model RC0J30-CV RC0J30-CV RC0J30-CV RC0J30-CV
Current *1 Cooling A0.20 0.27 0.30 0.36
Heating 0.20 0.27 0.30 0.36
Dimensions W × H × D mm 838 × 280 × 228 838 × 280 × 228 838 × 280 × 228 838 × 280 × 228
Weight kg 8.5 8.5 9.0 9.0
Special remarks
Air direction 5 5 5 5
Airow
Cooling
Super High
m3/h
582 702 786 786
High 432 468 648 672
Med. 324 336 522 522
Low 216 216 360 384
Heating
Super High 606 630 804 870
High 444 444 648 672
Med. 324 324 474 498
Low 198 198 336 366
Sound level
Cooling
Super High
dB(A)
43 46 45 45
High 37 38 39 40
Med. 30 31 34 36
Low 21 22 24 28
Heating
Super High 43 44 46 47
High 37 37 40 41
Med. 30 30 32 34
Low 21 21 24 27
Fan speed
Cooling
Super High
rpm
1,120 1,280 1,130 1,130
High 900 950 970 1,000
Med. 730 750 830 860
Low 550 550 630 660
Heating
Super High 1,150 1,180 1,150 1,220
High 920 920 970 1,000
Med. 730 730 770 800
Low 520 520 600 640
Fan speed regulator 4444
Remote controller model RH18A RH18A RH18A RH18A
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 Wet-bulb temperature 24°C
Heating: Indoor Dry-bulb temperature 20°C Wet-bulb temperature -
Outdoor Dry-bulb temperature 7°C Wet-bulb temperature 6°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) 3P
OBH822B

5
Indoor model MSZ-HR60VF MSZ-HR71VF
Power supply Single phase 230 V, 50 Hz Single phase 230 V, 50 Hz
Electrical
data
Power input *1 Cooling W55 55
Heating 55 55
Running current *1 Cooling A0.50 0.50
Heating 0.50 0.50
Fan motor
Model RC0J40-SA RC0J40-SA
Current *1 Cooling A0.50 0.50
Heating 0.50 0.50
Dimensions W × H × D mm 923 × 305 × 262 923 × 305 × 262
Weight kg 12.5 12.5
Special remarks
Air direction 5 5
Airow
Cooling
Super High
m3/h
1,176 1,176
High 924 924
Med. 756 756
Low 624 624
Heating
Super High
m3/h
1,176 1,176
High 1,002 1,002
Med. 786 786
Low 642 642
Sound level
Cooling
Super High
dB(A)
50 50
High 44 44
Med. 38 38
Low 33 33
Heating
Super High
dB(A)
50 50
High 44 44
Med. 38 38
Low 33 33
Fan speed
Cooling
Super High
rpm
1,220 1,220
High 1,000 1,000
Med. 850 850
Low 730 730
Heating
Super High
rpm
1,220 1,220
High 1,070 1,070
Med. 880 880
Low 750 750
Fan speed regulator 4 4
Remote controller model RH18A RH18A
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.
Specifications and rated conditions of main electric parts
Fuse (F11) T3.15AL250V
Horizontal vane motor (MV) 12 V DC
Varistor
(NR11) 470V
Terminal block (TB) 3P
OBH822B

6
NOISE CRITERIA CURVES
4
MSZ-HR25VF MSZ-HR35VF
MSZ-HR42VF MSZ-HR50VF
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
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION SPL(dB(A)) LINE
45
HEATING 46
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
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
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION SPL(dB(A)) LINE
45
HEATING 47
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
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
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION SPL(dB(A)) LINE
43
HEATING 43
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
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
BAND CENTER FREQUENCIES, Hz
COOLING
FUNCTION SPL(dB(A)) LINE
46
HEATING 44
OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR
OBH822B

7
MSZ-HR60VF MSZ-HR71VF
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
50
50
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
50
50
NC-10
INDOOR UNIT
WALL
MICROPHONE
0.8m
1m
Test conditions
Cooling : Dry-bulb temperature 27°C Wet-bulb temperature 19°C
Heating : Dry-bulb temperature 20°C
OBH822B

8
OUTLINES AND DIMENSIONS
5
MSZ-HR25VF MSZ-HR35VF MSZ-HR42VF MSZ-HR50VF Unit: mm
Unit: mm
403.5 38658
42 221.5
263
93 225 225 93
220.5
240.5 21.5
262
3
43
75.5
220 205
909
923
7
(5) 403.5
3.543
305
57
5262
65
63
65
53
63
93
71
18.5
65
56 19
132
65
709 161(53)
100
116.5
133
175.5
PIPING
INSULATION φ50 O.D
LIQUID LINE φ8 - 0.50m (FLARED CONNECTION φ6.35)
GAS LINE φ12 - 0.45m (FLARED CONNECTION φ12.7)
DRAIN HOSE INSULATION φ29 CONNECTED PART φ16 O.D
IN CASE OF LEFT, LEFT REAR,OR LEFT UNDER PIPING (USING SPACER), MIN 125.5mm
MIN 75mm
MIN 40mm
MIN 7mm MIN 89.5mm
DRAIN HOSE
PIPING
AIR OUT
AIR IN
26×11 OBLONG HOLE 11×20 OBLONG HOLE
INSTALLATION PLATE
INDOOR UNIT
WALL HOLE 75
INSTALLATION PLATE
MSZ-HR60VF MSZ-HR71VF
OBH822B

9
MSZ-HR25VF MSZ-HR35VF MSZ-HR42VF MSZ-HR50VF
WIRING DIAGRAM
6
MSZ-HR60VF MSZ-HR71VF
OBH822B

10
REFRIGERANT SYSTEM DIAGRAM
7
Unit: mm
MSZ-HR25VF MSZ-HR35VF
Indoor
heat
exchanger
Flared connection
Room temperature
thermistor
RT11
Flared connection
Refrigerant pipe ø9.52
(with heat insulator)
Refrigerant pipe ø6.35
(with heat insulator)
Indoor coil
thermistor
RT12
Indoor coil
thermistor
RT13
Refrigerant flow in cooling
Refrigerant flow in heating
Indoor
heat
exchanger
Flared connection
Room temperature
thermistor
RT11 Flared connection
Refrigerant pipe ø9.52
(with heat insulator)
Refrigerant pipe ø6.35
(with heat insulator)
Indoor coil
thermistor
RT12
Indoor coil
thermistor
RT13
Refrigerant flow in cooling
Refrigerant flow in heating
MSZ-HR42VF MSZ-HR50VF MSZ-HR60VF MSZ-HR71VF
Indoor
heat
exchanger
Flared connection
Room temperature
thermistor
RT11
Flared connection
Refrigerant pipe ø9.52
(with heat insulator)
Refrigerant pipe ø6.35
(with heat insulator)
Indoor coil
thermistor
RT12
Indoor coil
thermistor
RT13
Refrigerant flow in cooling
Refrigerant flow in heating
Indoor
heat
exchanger
Flared connection
Room temperature
thermistor
RT11
Flared connection
Refrigerant flow in cooling
Refrigerant flow in heating
Refrigerant pipe ø12.7
(with heat insulator)
Refrigerant pipe ø6.35
(with heat insulator)
Indoor coil
thermistor
RT12
Indoor coil
thermistor
RT13
OBH822B