AAON MODGAS-XWR2 - Page 22

22
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 congured
for two stages of heat. This can either be a modulating heat stage
or xed heat stage.
NOTE: In the 2V2IGN1S conguration, 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
congured for three stages of heat and will be a xed 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 congured
for four stages of heat and will be a xed heat stage.
INPUTS AND OUTPUTS
Inputs and Outputs