4.1 Micro switch configuration
The micro switches are used to establish the following configurations:
A T T E N T I O N
In order to update the new configuration of the micro switches the power supply has to be shut off
MICRO SWITCH CONFIGURATION
Number
Status
Description
1 / 2
OFF/OFF
Defrosting time 0'
ON/OFF
Defrosting time 30'
OFF/ON
Defrosting time 60'
ON/ON
Defrosting time 90'
3
ON
Crossed coils
OFF
Independent coils
4
ON
Selection of 2 compressors (tandem) ‑ 1 circuit
OFF
Selection of 1 compressor ‑ 1 circuit
5
ON
Cold selection
OFF
Heat pump selection
6
ON
4-way valve active in heat
OFF
4-way valve active in cold
7
ON
Receives signal B from thermostat (active in heat)
OFF
Receives signal O from thermostat (active in cold)
8
ON
Fan enabled during defrost
OFF
Fan disabled during defrost
Wiring diagrams
4
Micro switch configuration
4.1
55
