Daikin VRV S RXQ4/5ARV1 - Basic Control

Control for 4/5/10/12 HP Outdoor Unit SiAF332111E
56 Part 4 Functions and Control
1.2 Basic Control
1.2.1 Normal Control
Cooling Operation
Outdoor unit
actuator
Electric symbol
Operation Remarks
RXQ4ARV1 RXQ5ARV1
RXMQ
10/12ARY1
Compressor
M1C M1C M1C
Compressor PI
control
Used for high pressure protection control,
low pressure protection control, discharge
pipe temperature protection control, and
compressor operating frequency upper limit
control with inverter protection control.
Outdoor fan
M1F M1F
M1F
M2F
Cooling fan control ―
Electronic
expansion valve
(Main)
――Y1E
Fully open ―
Electronic
expansion valve
(Injection)
――Y2E
PI control ―
Hot gas bypass
valve
Y2S ― ―
OFF This valve turns on with low pressure
protection control.