Operation Mode - Daikin SkyAir RZQ-P Series Service Manual

Operation Mode

1. Operation Mode

Indoor unit stop or
thermostat OFF
Startup control
•
Cooling startup
control
• Heating startup
control
Normal operation
• Compressor PI control
• Electronic expansion
valve PI control
• Protection control
Cooling or heating
Oil return starting
conditions are met.
Defrost starting
conditions are met.
12
Operation in
stop mode
Indoor unit thermostat ON
Pressure
equalization
prior to startup
Indoor unit thermostat ON
Error/Standby
operation
Yes
No
Yes
No
Yes
Operation
mode change
No
Error/Standby
(Compressor stop)
Indoor unit stop or
thermostat OFF
Indoor unit stop or
thermostat OFF
Error/Standby
Oil return operation
Defrosting operation
Note:
In the event 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.
SiUS28-902_B
Restart standby
Error/
Standby
Pump down
residual
operation
Function