3
1. MS MICROPROCESSOR CONTROL ··················································································································· 4
Indoor unit models Outdoor unit models
MS-A09/12WA MU-A09/12WA
1-1. COOL OPERATION ······································································································································· 4
1-2. DRY OPERATION ·········································································································································· 4
1-3. AUTO VANE OPERATION ····························································································································· 6
2. MSZ, MSY MICROPROCESSOR CONTROL ······································································································· 7
Indoor unit models Outdoor unit models
MSZ-A09/12/15/17/24NA MUZ-A09/12/15/17/24NA
MSY-A15/17/24NA MUY-A15/17/24NA
MSZ-FD09/12NA MUZ-FD09/12NA
MSZ-FE09/12/18NA MUZ-FE09/12/18NA
MSZ-D30/36NA MUZ-D30/36NA
MSY-D30/36NA MUY-D30/36NA
MSZ-GA24NA MUZ-GA24NA
MSY-GA24NA MUY-GA24NA
MSZ-GE06/09/12/15/18/24NA MUZ-GE09/12/15/18/24NA
MSY-GE09/12/15/18/24NA MUY-GE09/12/15/18/24NA
2-1. COOL OPERATION ······································································································································· 7
2-2. DRY OPERATION ·········································································································································· 8
2-3. HEAT OPERATION ········································································································································ 8
2-4. AUTO CHANGE OVER ··· AUTO MODE OPERATION ··············································································· 10
2-5. OUTDOOR FAN MOTOR CONTROL ·········································································································· 11
2-6. AUTO VANE OPERATION ··························································································································· 11
2-7. INVERTER SYSTEM CONTROL ················································································································· 12
2-8. OPERATIONAL FREQUENCY CONTROL OF OUTDOOR UNIT ······························································ 17
2-9. EXPANSION VALVE CONTROL (LEV CONTROL) ···················································································· 18
2-
10
. PRE-HEAT CONTROL ·································································································································
20
3. MXZ MICROPROCESSOR CONTROL ··············································································································· 21
Outdoor unit models
MXZ-2A20NA MXZ-3A30NA
MXZ-4A36NA
MXZ-2B20NA MXZ-3B24NA
MXZ-3B30NA MXZ-4B36NA
3-1. INVERTER SYSTEM CONTROL ················································································································· 21
3-2. EXPANSION VALVE CONTROL (LEV CONTROL) ···················································································· 23
3-3. OPERATIONAL FREQUENCY RANGE ······································································································ 29
3-4. HEAT DEFROSTING CONTROL ·················································································································
31
3-5.
DISCHARGE TEMPERATURE PROTECTION CONTROL ··················································································31
3-6. OUTDOOR FAN CONTROL ························································································································
32
3-7. PRE-HEAT CONTROL ·································································································································
33
3-8.
COOL OPERATION ···············································································································································33
3-9.
DRY OPERATION ··················································································································································34
3-
10
. HEAT OPERATION ······································································································································
34
4. MFZ MICROPROCESSOR CONTROL ··············································································································· 35
Indoor unit models
MFZ-KA09NA
MFZ-KA12NA
MFZ-KA18NA
4-1. COOL OPERATION ···································································································································· 35
4-2. DRY OPERATION ······································································································································· 35
4-3. HEAT OPERATION ····································································································································· 36
4-4. AUTO CHANGE OVER ··· AUTO MODE OPERATION ············································································· 37
4-5. INDOOR FAN MOTOR CONTROL ············································································································· 37
4-6. AUTO VANE OPERATION ·························································································································· 38