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Installation Instructions
3
The Explorer Mini Thermostat Backplate
R
24 VAC return
G
Fan relay
W1/O/B
1st stage heat circuit
W2
2nd stage heat circuit
Y1
1st stage compressor relay
Y2
2nd stage compressor relay
C
24 VAC common
CK1
Dry Contact
IMPORTANT: This thermostat requires both R (24 VAC Return) and C (24 VAC
Common) wires be connected to the backplate terminals to operate properly.
To remove the thermostat backplate:
Gently separate the display from the
base by pulling from the center.
R
G
Y1
W2
W1/O/B
Y2
C
CK1
