Fan Speed Control For Outdoor Unit; Fin Thermistor Control - Daikin E Series Service Manual

Control Specification
3.5

Fan Speed Control for Outdoor Unit

Outline The fan speed control regulates the speed of the outdoor fan.
Detail Fan control is carried out according to the following conditions.
1. Fan ON control for electric component cooling fan
2. Fan control when defrosting
3. Fan OFF delay when stopped
4. ON/OFF control when cooling operation
5. Fan control during heating operation
Cooling
Class
28
42
50
The fan speed is fixed.
Heating
Class
28
42
50
The fan speed is fixed.
3.6

Fin Thermistor Control

Outline This function is only applicable for inverters. The temperature sensor is located on the top of the
radiation fins connected to the power elements of the electronic inverter circuit (PAM & PWM).
Detail
Step down area :
66
Outdoor temperature
Inverter fan ON
0˚C
Inverter fan OFF
Cooling
800rpm
850rpm
850rpm
Heating
750rpm
760rpm
810rpm
86˚C
83˚C
81˚C
73˚C
67˚C
The frequency decreases with 2 Hz every 15 seconds.
(R5921)
Stop area
Step down area
Steady area
Return area
SiBE04-624
(R5916)
Function and Control