Kaisai KFU-09HRDN1-QRC8GW, Service Manual

Page: 48 / 69

48
8.4.3.5 Evaporator coil temperature protection
TEstop
T2
Resume
Off
Decrease
TEdown
TEnorm
Hold
Off: Compressor stops.
Decrease: Decrease the running frequency to the lower level.
Hold: Keep the current frequency.
Resume: No limitation for frequency.
8.4.4 Auto-mode
This mode can be chosen with remote controller and the setting temperature can be changed between 17~30
℃
.
In auto mode, the machine will choose cooling, heating or fan-
only mode according to ΔT (ΔT =T1-Ts).
ΔT=T1-Ts
Running mode
ΔT
＞
1
℃
Cooling
-
1<ΔT≤1
℃
Fan-only
ΔT≤-1
℃
Heating
Indoor fan will run at auto fan of the relevant mode.
The louver operates same as in relevant mode.
If the machine switches mode between heating and cooling, the compressor will keep stopping for 15 minutes
and then choose mode according to T1-Ts.
If the setting temperature is modified, the machine will choose running function again.
8.4.5 Drying mode
8.4.5.1 Indoor fan speed is fixed at breeze and can’t be changed. The louver angle is the same as in
cooling mode.
8.4.5.2 Compressor running rules