Mitsubishi Electronics MS-AWA, MSY-ANA, MSZ-ANA, MSZ-FDNA, MU-AWA, MUY-ANA, MUZ-ANA, MUZ-ANA - U, MUZ-FDNA, MUZ-FDNA - U

Revision A:

• MXZ-3A30NA- 1 has been added.

Revision B:

• MXZ-2A20NA- 1, MXZ-4A36NA, MSZ-FD, MSZ-D and MSY-D have been added.

Contents

Main SERVICE TECHNICAL GUIDE Page Page MS MICROPROCESSOR CONTROL 1-1. COOL ( ) OPERATION MS-AWA MU-AWA 1-2. DRY ( ) OPERATION Page 1-3. AUTO VANE OPERATION MSZ,MSY MICROPROCESSOR CONTROL 2-1. COOL ( ) OPERATION MSZ-A MSY-A MSZ-FD MSZ-D MSY-D MSZ-ANA MSY-ANA MUZ-ANA MUY-ANA MSZ-FDNA MSY-DNA MUZ-FDNA MUY-DNA MSZ-DNA MUZ-DNA 2-2. DRY ( ) OPERATION 2-3. HEAT ( ) OPERATION (MSZ) Page <Outdoor unit> <Indoor unit> Time chart of defrosting in HEAT mode (reverse type) 2-4. AUTO CHANGE OVER AUTO MODE OPERATION (MSZ) 2-5. OUTDOOR FAN MOTOR CONTROL 2-6. AUTO VANE OPERATION 2-7. INVERTER SYSTEM CONTROL Page Page Page 2-8. OPERATIONAL FREQUENCY CONTROL OF OUTDOOR UNIT 2-9. EXPANSION VALVE CONTROL (LEV CONTROL) Page Page MXZ MICROPROCESSOR CONTROL 3-1. INVERTER SYSTEM CONTROL MXZ-ANA 3-2. EXPANSION VALVE CONTROL (LEV CONTROL) Page Page Page MXZ-2A20NA- MXZ-2A MXZ-3A MXZ-4A MXZ-2A20NA MXZ-3A30NA MXZ-3A30NA- 1 MXZ-4A36NA 3-3. OPERATIONAL FREQUENCY RANGE MXZ-2A20NA- 3-6. OUTDOOR FAN CONTROL 3-5. DISCHARGE TEMPERATURE PROTECTION CONTROL 3-4. HEAT DEFROSTING CONTROL MXZ-3A30NA- 1 MXZ-4A 3-7. PRE-HEAT CONTROL MXZ-2A20NA- 1 MXZ-3A30NA- 1 MXZ-4A36NA 3-8. COOL OPERATION 3-9. DRY OPERATION 3-10. HEAT OPERATION

Mitsubishi Electronics manual - page 2