Standby - Daikin VRV II RXYQ8MY1K Service Manual

Si39-502A
3.5

Standby

3.5.1 Restart Standby
Used to forcedly stop the compressor for a period of five minutes, in order to prevent the frequent ON/OFF of the
compressor and equalize the pressure within the refrigerant system.
Actuator
Compressor
Outdoor unit fan
Four way valve
Main motorized valve (EV1)
Subcooling motorized valve (EV2)
Hot gas bypass valve (SVP)
Receiver gas discharging valve (SVG)
Non-operating unit liquid pipe stop
valve (SVSL)
Ending conditions
3.5.2 Crankcase Heater Control
In order to prevent the refrigerant from melting in the compressor oil in the stopped mode, this mode is used to control
the crankcase heater.
Function
Operation
OFF
Ta>30°C: STEP4
Ta≤30°C: OFF
Holds
0 pls
0 pls
OFF
OFF
ON
5 min.









˚C
˚C
Special Control
Remarks
65