Mitsubishi MUZ-GE25VA User manual

SERVICE MANUAL
CONTENTS
1. TECHNICAL CHANGES ··································· 3
2. PART NAMES AND FUNCTIONS····················· 4
3. SPECIFICATION················································ 5
4. NOISE CRITERIA CURVES······························ 7
5. OUTLINES AND DIMENSIONS ························ 8
6. WIRING DIAGRAM············································ 9
7. REFRIGERANT SYSTEM DIAGRAM············· 15
8. PERFORMANCE CURVES····························· 17
9. ACTUATOR CONTROL··································· 31
10. SERVICE FUNCTIONS···································· 32
11. TROUBLESHOOTING····································· 32
12. DISASSEMBLY INSTRUCTIONS···················· 50
Models
SPLIT-TYPE AIR CONDITIONERS
MUZ-GE25VA - E1
MUZ-GE25VAH - E1
MUZ-GE35VA - E1
MUZ-GE35VAH - E1
MUZ-GE42VA - E1
MUZ-GE42VAH - E1
MUZ-GE50VA - E1
MUZ-GE50VAH - E1
NOTE:
RoHS compliant products have <G> mark on the spec name plate.
HFC
utilized
R410A
No. OBH516
REVISED EDITION-A
OUTDOOR UNIT
Indoor unit service manual
MSZ-GE•VA Series (OBH515)
MSZ-CGE•VA Series (OBH523)
PARTS CATALOG (OBB516)
MUZ-GE25/35/42VA
Revision A:
• MUZ-GE42/50VA(H) - E1 has been added.
Please void OBH516.

2
Revision A:
• MUZ-GE42/50VA(H) - E1 has been added.

3
MUZ-GE25VA - E1 MUZ-GE25VAH - E1
MUZ-GE35VA - E1 MUZ-GE35VAH - E1
MUZ-GE42VA - E1 MUZ-GE42VAH - E1
MUZ-GE50VA - E1 MUZ-GE50VAH - E1
1. New model
TECHNICAL CHANGES
1

4
Air outlet
Drain outlet
Piping
Drain hose
Air inlet
(back and side)
MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAH
MUZ-GE42VA MUZ-GE42VAH
MUZ-GE50VA MUZ-GE50VAH
Piping
Air outlet
Air inlet
(back and side)
Drain hose
Drain outlet
(GE50VA)
PART NAMES AND FUNCTIONS
2
ACCESSORIES
MUZ-GE25/35/42VA MUZ-GE50VA
Drain socket 1 1
Drain cap - 2

5
Outdoor model MUZ-GE25VA
MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAH MUZ-GE42VA MUZ-GE42VAH MUZ-GE50VA MUZ-GE50VAH
Power supply Single phase, 230 V, 50 Hz
Capacity
Rated frequency (Min.-Max.)
Cooling kW 2.5 (1.1 - 3.5) 3.5 (1.1 - 4.0) 4.2 (0.9 - 4.8) 5.0 (1.4 - 5.5)
Heating 3.2 (1.3 - 4.5) 4.0 (1.6 - 5.3) 5.4 (1.4 - 6.0) 5.8 (1.4 - 7.3)
Breaker Capacity A 10 16
Electrical data
Power input 1 (Total) Cooling W545 865 1,215 1,515
Heating 700 955 1,460 1,565
Running current 1
(Total)
Cooling A2.9 4.2 5.6 6.8
Heating 3.7 4.6 6.6 7.0
Power factor 1 (Total) Cooling %82 90 94 96
Heating 82 90 96 97
Starting current 1 (Total) A 3.7 4.6 6.6 7.0
Coefficient of performance
(COP) 1 (Total)
Cooling 4.59 4.05 3.46 3.30
Heating 4.57 4.19 3.70 3.71
Compressor
Model KNB073FFDHC KNB092FFAHC SNB130FGBHT
Output W 550 650 900
Current 1 Cooling A2.44 3.56 4.99 6.09
Heating 3.20 4.06 5.98 6.32
Refrigeration oil (Model) cc 320 (NEO22) 450 (NEO22)
Fan motor
Model RC0J50-DB RC0J50-EA RC0J60-AA
Current 1Cooling A0.24 0.35 0.32 0.32
Heating 0.27 0.31 0.31
Dimensions W × H × D mm 800 × 550 × 285 840 × 850 × 330
Weight kg 30 33 36 54
Special remarks
Dehumidification Cooling /h 0.2 0.9 1.4 1.8
Air flow 1
Cooling Med.
m3/h
1,806 1,872 1,872 2,940
Low 1,170 1,776 1,086 1,740
Heating
High 2,106 2,016 2,016 –
Med. 1,806 1,776 1,776 2,940
Low 1,452 1,386 1,386 2,142
Sound level 1 Cooling dB(A) 47 50 54
Heating 48 51 56
Fan speed
Cooling Med.
rpm
740 810 810 780
Low 490 770 490 480
Heating
High 860 870 870 –
Med. 740 770 770 780
Low 600 610 610 580
Fan speed regulator 3 2
Refrigerant filling capacity (R410A) kg 0.80 1.15 1.55
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
Refrigerant piping length (one way): 5 m
1 Measured under rated operating frequency.
SPECIFICATION
3