Table Of Contents - Mitsubishi Electric MSC-CA20VB Service Technical Manual

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Revision D:
• MXZ-5A100VA -
Revision C:
• MXZ-2A30VA -
Revision B:
• MSZ-CB•VA -
• MSZ-HA•VA -
• MSZ-GB•VA -
• MXZ-2A40/52VA -
Revision A:
• MFZ-KA•VA -
1. MSC MICROPROCESSOR CONTROL·························································6
Indoor unit models
MSC-CA20VB MSC-CB20VB MSC-GA20VB MU-GA20VB MUH-GA20VB MUX-2A28VB
MSC-CA25VB MSC-CB25VB MSC-GA25VB MU-GA25VB MUH-GA25VB MUX-2A59VB
MSC-CA35VB MSC-CB35VB MSC-GA35VB MU-GA35VB MUH-GA35VB MUX-3A60VB
1-1. COOL OPERATION················································································6
1-2. DRY OPERATION ··················································································7
1-3. FAN OPERATION···················································································8
1-4. HEAT OPERATION ················································································8
1-5."I FEEL CONTROL" OPERATION ·························································9
1-6. INDOOR FAN MOTOR CONTROL ······················································11
1-7. AUTO VANE OPERATION ···································································11
1-8. TIMER OPERATION·············································································12
1-9. EMERGENCY / TEST OPERATION ····················································13
1-10. OUTDOOR UNIT ACTUATOR CONTROL ··········································14
2. MS MICROPROCESSOR CONTROL ·························································15
Indoor unit models
Outdoor unit models
2-1. "I FEEL CONTROL" OPERATION ······················································15
2-2. COOL OPERATION··············································································18
2-3. DRY OPERATION ················································································19
2-4. FAN OPERATION·················································································19
2-5. INDOOR FAN MOTOR CONTROL ······················································19
2-6. AUTO VANE OPERATION ···································································19
2-7. TIMER OPERATION·············································································22
2-8. EMERGENCY / TEST OPERATION ····················································23
2-9. EXPANSION VALVE CONTROL (LEV CONTROL) ····························24
2-10. FUNCTION OF SOFT START RELAY ·················································25
3. MSH MICROPROCESSOR CONTROL·······················································26
Indoor unit models
3-1. "I FEEL CONTROL" OPERATION ······················································26
3-2. COOL OPERATION··············································································32
3-3. DRY OPERATION ················································································32
3-4. HEAT OPERATION ··············································································32
3-5. INDOOR FAN MOTOR CONTROL ······················································32
3-6. AUTO VANE OPERATION ···································································33
3-7. TIMER OPERATION·············································································35
3-8. EMERGENCY / TEST OPERATION ····················································36
3-9. EXPANSION VALVE CONTROL (LEV CONTROL) ····························37
3-10. FUNCTION OF SOFT START RELAY ·················································38
and MXZ-4A80VA -
E
and MXZ-2A40VA -
E
E2
has been added.
E
has been added.
E
has been added.
E
has been added.
E
has been added.
E
Outdoor unit models
have been added.
E2
have been added.
Outdoor unit models
2
MUX-2A70VB
MUX-3A63VB
MUX-4A73VB

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