Fisher FSKIF-121AE2-EU Service Manual page 126

Electrical Control Function
1.3.3.4 High evaporator coil temp.T2 protection:
Off: Compressor stops.
Decrease: Decrease the running frequency to the lower level.
Hold: Keep the current frequency.
Resume: No limitation for frequency.
.
1.3.4 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 ∆T (∆T =T1-Ts).
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.
1.3.5 Drying mode
Indoor fan speed is fixed at breeze and can't be changed.
All protections are active and the same as that in cooling mode.
Low indoor room temperature protection
In drying mode, if room temperature is lower than 10℃, the compressor will stop and not resume until room
temperature exceeds 12℃.
1.3.6 Timer function
1.3.6.1 Timing range is 24 hours.
1.3.6.2 Timer on. The machine will turn on automatically when reaching the setting time.
122
T2
TEstop
TEdown
TEnorm
∆T=T1-Ts
∆T＞2℃
-2<∆T≤2℃
∆T≤-2℃
Off
Decrease
Hold
Resume
Running mode
Cooling
Fan-only
Heating
Electrical Control System