Service manual

ELECTRONIC FUNCTION
HKD DCI 42 Version - 1
Meanwhile, the maximum frequency is limited by the indoor fan speed.
Indoor fan speed
Maximum frequency
High speed/8 degree heating/ turbo function
No limit
Medium speed
FHeatMaxMidFan
Low speed/sleep mode
FHeatMaxLowFan
Silent mode
Fixed at F3
If users switch on AC by remote controller, the compressor will run at the Fmax frequency for 7
minutes according to outdoor ambient temp. During the 7 minutes, the frequency limitation is active.
7 minutes later, the compressor running frequency will be controlled as below:
+5.0
+4.5
+3.5
+3.0
+2.5
+2.0
+1.5
T1-Ts+ΔT
+1.0
I
G
F
E
D
C
B
A
+0.5
+4.0
H
J
While the zones of A,B,C... are corresponding to different compressor running frequency.
ΔT=0℃ as default.
Note:
When T1-Ts keeps in the same temp. zone for 3 minutes, the compressor will run as the below rules:
A: Increase the frequency to 3 grade higher until to FREMAX.
B~E: Increase the frequency to 2 grade higher until to FREMAX.
F~G: Increase the frequency to 1 grade higher until to FREMAX.
H: Keep the current frequency.
I: Decrease the frequency to the 1 grade lower until to F1.