York VCH-25A, Installation Manual

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2.1 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
2 Wiring diagrams
2.1 Micro switch configuration
48