Operation Mode - Daikin RMXS-L Series Service Manual

Operation Mode

1. Operation Mode
Indoor unit stop or
thermostat OFF
Normal operation
• Compressor PI control
• Electronic expansion
valve PI control
• Protection control
41
Operation in
stop mode
Indoor unit thermostat ON
Pressure
equalization
prior to startup
Startup control
• Cooling startup
control
• Heating startup
control
Cooling or heating
operation
Yes
Oil return IN
conditions are met.
No
Yes
Defrost IN
conditions are met.
No
Yes
Operation
mode change
No
Malfunction/Standby
Indoor unit stop or
thermostat OFF
Indoor unit thermostat ON
Malfunction/Standby
Indoor unit stop or
thermostat OFF
Malfunction/
Standby
Oil return operation
Defrosting operation
Note:
If the indoor unit stops or the thermostat turns OFF while
in oil return operation or defrosting operation, pump-down
residual operation is performed on completion of the oil
return operation or defrosting operation.
SiUS181305E
Restart standby
(Compressor stop)
Malfunction/
Standby
Pump-down
residual
operation
(R12924)
Function