Fan Control; Liquid Compression Protection Function 2 - Daikin F-Series Service Manual

Si04-703A
3.8

Fan Control

Outline Fan control is carried out with following condition.
1. Fan ON control for electric component cooling fan
2. Fan control when defrosting
3. Fan OFF delay when stopped
4. Fan control for maintaining pressure difference
5. Fan control when the compressor starts for heating
6. Fan control in forced operation
7. Fan control in powerful mode
8. Fan control in low noise operation
9. Fan control in quiet mode
Detail Fan OFF Control when Stopped
3.9

Liquid Compression Protection Function 2

Outline In order to obtain the dependability of the compressor, the compressor must be stopped
according to the conditions of the temperature of the outdoor air and outdoor heat exchanger.
Detail Heat Pump Model
Compressor operation turns OFF under the conditions that the system is in cooling operation
and outdoor air temperature is below –12°C (0°C : 71-90FVMA).
Cooling Only Model
Compressor operation turns OFF under the condition that outdoor air temperature is below
–12°C (0°C : 71-90FVMA).
Function and Control
Fan OFF delay for 60 seconds must be made when the compressor is stopped.
Operation stops depending on the outdoor air temperature.
Operation stops depending on the outdoor air temperature.
Control Specification
51