Daikin Super Multi Plus E-Series FFQ50B8V1B User Manual

Basic Control SiBE18-821_C
78 Function
2. Basic Control
2.1 Normal Operation
[Cooling Operation]
[Heating Operation]
★
Heating operation does not function when the outdoor temperature is above 24
°
CDB.
Actuator Operation Remarks
Compressor 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 Cooling fan control 
Four way valve (Y1S) OFF 
Main electronic expansion valve (Y1E) 480 pls 
Subcooling electronic expansion valve
(Y3E)
PI control 
Hot gas bypass valve (Y2S) OFF
This valve turns on with low pressure protection
control.
Actuator Operation Remarks
Compressor 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 STEP 7 or 8 
Four way valve (Y1S) ON 
Main electronic expansion valve (Y1E) PI control 
Subcooling electronic expansion valve
(Y3E)
PI control 
Hot gas bypass valve (Y2S) OFF
This valve turns on with low pressure protection
control.

Daikin Super Multi Plus E-Series FFQ50B8V1B Specifications

General

Brand	Daikin
Model	Super Multi Plus E-Series FFQ50B8V1B
Category	Air Conditioner
Language	English