Terminal Descriptions - Johnson Controls GLAS Installation Instructions Manual

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Terminal descriptions

Note: If you have only one R wire, connect to RC.

Note: If you are removing an existing thermostat, remove any jumper wires between R and

RH or RC and RH. You will not need these for GLAS.

First stage of cooling or first stage heat pump

Second stage of cooling or second stage heat pump

W1 First stage of conventional heating or first stage auxiliary heat for heat pump systems

W2 Second stage of conventional heating or second stage of auxiliary heat for heat

pump systems

Fan

GLAS smart thermostat installation instructions -

2018 Johnson Controls

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