3
2. MSZ/MLZ MICROPROCESSOR CONTROL······································································································ 11
Indoor unit models
Outdoor unit models
MSZ-GC22/25/35VA
MUZ-GC25/35VA(H)
MSZ-HC25VA
MSZ-HC35VA(B)
MUZ-HC25VA
MUZ-HC35VA(B)
MSZ-CHC25/35VA
MSZ-FD25/35/50VA(S)
MUZ-FD25/35VA(H)(BH) MUZ-FD50VABH
MSZ-GE22/25/35/42/50VA
MUZ-GE25/35/42/50VA(H)
MSZ-CGE22/25/35/42/50VA
MLZ-KA25/35/50VA
2-1. COOL OPERATION ··································································································································· 11
2-2. DRY OPERATION ······································································································································ 12
2-3. HEAT OPERATION ···································································································································· 12
2-4. AUTO CHANGE OVER ··· AUTO MODE OPERATION············································································· 15
2-5. OUTDOOR FAN MOTOR CONTROL ········································································································ 15
2-6. AUTO VANE OPERATION ························································································································· 15
2-7. DRAIN PUMP/FLOAT SENSOR CONTROL ····························································································· 16
2-8. INVERTER SYSTEM CONTROL ··············································································································· 17
2-9. OPERATIONAL FREQUENCY CONTROL OF OUTDOOR UNIT ···························································· 20
2-10. PRE-HEAT CONTROL ····························································································································· 21
2-11. EXPANSION VALVE CONTROL/LEV CONTROL ··················································································· 22
NOTE:
As for the multi system type models or MU/MUH-GA type models, refer to the appropriate service technical
guide as well as this service technical guide.
1. MSC/MS/MSH MICROPROCESSOR CONTROL· ······························································································· 4
Indoor unit models
Outdoor unit models
MSC-GE20VB
MSC-GE25VB
MSC-GE35VB
MS-GD80VB MU-GD80VB
MS-GE50VB MU-GE50VB
MSH-GD80VB MUH-GD80VB
MSH-GE50VB MUH-GE50VB
1-1. COOL OPERATION ····································································································································· 4
1-2. DRY OPERATION ········································································································································ 5
1-3. HEAT OPERATION ······································································································································ 5
1-4. INDOOR FAN MOTOR CONTROL ·············································································································· 8
1-5. AUTO VANE OPERATION ··························································································································· 8
1-6. EXPANSION VALVE CONTROL (LEV CONTROL) ·················································································· 10
