Function General; Operation Mode - Daikin RQYQ140-180PY1 Service Manual

Function General

1. Function General

1.1

Operation Mode

2-1. Stop
Indoor unit
stop or
thermostat
OFF
Pressure
equalization prior
to startup
2.4. Startup control
Startup control
[Cooling startup control,
Heating startup control]
*
2.5. Normal Operation
(1) List of Functions in Normal
Operation
(2) Compressor PI Control
(3) Compressor Step Control
(4) Electronic Expansion
Valve PI Control
(5) Step Control of
Outdoor Unit Fans
(6) Heat Exchanger
Control
(7) Control of Refrigerant
Amount
2.6. Protection Control
(1) High Pressure
Protection Control
(2) Low Pressure
Protection Control
(3) Discharge Pipe
Protection Control
(4) Inverter Protection
Control
35
operation
Thermostat ON
(If test run has not been completed, the error code "U3" is displayed and the
unit will not operation. However this does not apply to test run operation in
service mode, refrigerant charging operation, and pump-down operation.)
Retry
Indoor unit
stop or
thermostat
OFF
2.3. Outdoor Unit
Rotation
In Operation
Oil return IN
conditions are
met
No
Defrost IN
conditions are
met *
No
Cooling / Heating
change *
No
Indoor unit thermostat ON
Indoor unit
stop or
thermostat
OFF
Retry
2.7. Special Control
Yes
Yes
* This function does not used
Yes
because there is no heating
operation.
SiBE341001
2.2. Standby
(1)
Restart Standby
(2)
Crankcase
Heater Control
Retry
Pump-down
Residual
Operation
Indoor unit
stop or
thermostat
OFF
(1) Oil return Operation
(2) Defrost Operation *
Function