Daikin Skyair FHC35K Service Manual page 84

Si-71A
Control
During heating, a defrosting request is made by the indoor unit when defrosting conditions have been
realized. The control method are as following.
Note: 4. Defrosting completion
5. Defrosting completion for motor operated valve.
6. Defrosting completion for outdoor unit fan
7. Indoor unit fan
„ Temperature conditions
„ Defrost complete condition
If one of the following conditions is met after defrosting function has been operating for one minute or
longer, the defrosting operation stops.
Outdoor unit heat exchanger temperature ≥ 10°C
Discharge pipe temperature > 120°C
Explanation of Function Operation
Defrosting ends when outdoor unit heat exchange temperature rises above 10°C and a minimum of 10
minutes elapses from the time defrosting begins, or when discharge pipe temperature rises above
120°C.
Operated at best initial opening and opening speed according to operating conditions at the start of
defrosting.
Operated at best fan tap according to operating conditions at the start of defrosting.
Hot start standby is carried out until 40 seconds elapses from the time defrosting ends, or until the
indoor unit heat exchange temperature rises.
Function Details
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