Daikin Sky Air R-407C - Normal Outdoor Fan Control in Heating Mode

ESIE02–01 Overview of the heating mode functions
Part 2 – Functional Description 2–47
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3.8 Normal Outdoor Fan Control in Heating Mode
Applicable units RYP71-250B
Purpose The purpose of the normal outdoor fan control is to:
■ Reduce the chance of overload during high ambient temperature.
■ Reduce the chance of icing up.
Method Normal fan control operation is done after 5 min of starting fan control operation.
The operation range is divided into three areas (A, B and C).
Example For area A, the fans go:
■ From L speed to OFF at 52.3˚C
■ From OFF to L speed at 50.3˚C.
10 17 24 30
21
9
6
4,5
-1
-10
A
C
B
56.0
62.5
OFF
LOFF L
H
L
L
H
H
HH
L
OFF
55.0
54.0
53.0
52.3
50.3
47.3
AB C
Outdoor air
temp. (˚CDB)
Indoor air
temp.
(˚CDB)
Indoor heat
exchanger
temp.