Terminal descriptions
G
Fan
O/B
Heat pump reversing valve (supports both O type and B type)
AUX
Auxiliary - humidifier, dehumidifier, or ventilator
R
24 VAC Cool
Rh
24 VAC Hot
C
24 VAC Common
GLAS Smart Thermostat Installation Instructions
© 2017 Johnson Controls
Preliminary - This is information may change
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