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MODGAS-XWR2 Technical Guide
RLY4 - Heat 2
Once the MODGAS-XWR2 brings on heat, Heat 2 (RLY4) is
the second stage of heat if the MODGAS-XWR2 is configured
for two stages of heat. This can either be a modulating heat stage
or fixed heat stage.
NOTE:
In the 2V2IGN1S configuration, Heat 1 (RLY3)
and Heat 2 (RLY4) are one stage.
RLY5 - Heat 3
Once the MODGAS-XWR2 brings on heat, Heat 3 (RLY5) is
the second or third stage of heat if the MODGAS-XWR2 is
configured for three stages of heat and will be a fixed heat stage.
RLY6 - Heat 4
Once the MODGAS-XWR2 brings on heat, Heat 4 (RLY6) is the
third or fourth stage of heat if the MODGAS-XWR2 is configured
for four stages of heat and will be a fixed heat stage.
INPUTS AND OUTPUTS
Inputs and Outputs
