Standby Control; Restart Standby; Crankcase Heater Control - Daikin REYQ-XA Service Manual

Standby Control

3. Standby Control
3.1

Restart Standby

Used to forcedly stop the compressor for a period of 2 minutes, in order to prevent the frequent ON/OFF of the
compressor and equalize the pressure within the refrigerant system.
In addition, the outdoor fan carry out the residual control for a while to accelerate pressure equalizing and to
suppress melting of the refrigerant to the evaporator.
3.2

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.
Crankcase heater
107
Discharge pipe
temperature < 70˚C (158 ˚F)
OFF
Discharge pipe
temperature > 75˚C (167 ˚F)
Crankcase heater
ON
Functions and Control
SiUS371901E