Johnson Controls GLAS User Manual

2-Wire Auxiliary Device without C Terminal
An auxiliary device that has two terminals with the same label (HUM, DEHUM, or
AUX) and no C terminal requires a relay pack for operation.
1. Connect the relay pack coil between the auxiliary device and C terminal on your
GLAS device.
2. Connect the switch side of the relay pack to the two terminals on the AUX device.

Johnson Controls GLAS Specifications

General

Brand	Johnson Controls
Model	GLAS
Category	Thermostat
Language	English