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  • GEM - Legacy - HVAC Status or Active Relays

GEM - Legacy - HVAC Status or Active Relays

Written by Melissa Mahler

Updated at April 27th, 2026

GEM shows the HVAC Status as Active Relays on a Legacy Site. 

When observing HVAC performance, us the below chart to decipher the Active Relays.

G Fan is on
W1 Heatstg1
W2 Heatstg2
Y1 Coolstg1
Y2 Coolstg2

 

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