– 4 –
SM830076
2-9
Auto. Mode for Automatic Heating/Cooling Switching ........................................ 35
2-10 Defrosting Control, Outdoor Heat Exchanger Coil (Heating).............................. 37
2-11 4-Way Valve, Solenoid Control ...........................................................................38
(A) Normal Control Mode .................................................................................... 38
(B) AUTO Control Mode ...................................................................................... 39
2-12 Automatic Restart after Power Interruption ........................................................ 39
2-13 Electronic Expansion Valve ................................................................................40
2-14 Compressor Discharge Gas Temperature ......................................................... 40
(A) Cooling .......................................................................................................... 40
(B) Heating (Except During Defrosting) ...............................................................40
2-15 Compressor Current Detection Circuit ................................................................41
2-16 Electronic Expansion Valve Control ....................................................................42
2-17 Voltage Detection Control ................................................................................... 43
3. ELECTRICAL DATA .................................................................................................... 45
3-1
Indoor Unit (Electric Wiring Diagram, Schematic Diagram) ............................... 46
3-2
Outdoor Unit (Electric Wiring Diagram, Schematic Diagram)............................. 48
4. SERVICE PROCEDURES ........................................................................................... 53
4-1
Troubleshooting .................................................................................................. 54
4-2
Checking the Electrical Components ..................................................................87
