AAON MODGAS-XWR - 2 V1 IGN1 S 2 Valves, 1 Ignitor, 1 Stage Stand Alone Wiring & Secondary Board Wiring

Zone
Zone
STAND-ALONE WIRING
MODGAS-XWR2 Technical Guide
8
2V1IGN1S - Stand-Alone Wiring
2 Modulating Valves, 1 Ignitor,
1 Stage (2V1IGN1S) - Stand-Alone
Wiring
This configuration operates as Stand-Alone (Figure 5, below) or
communicating with an AAON Unit Controller (Figure 13, page 16).
This conguration is used to control two modulating gas valves (one
on each header), in which the rst and second valves operate together
for one modulating stage. Both valves are connected to Heat 1 Relay.
NOTE: Up to 3 additional xed heat stages can be used by using
Heat Relays 2, 3 & 4 below and up to 12 more additional
xed stages can be added by using the 12-Relay E-BUS
Expansion Module. (Figure 8, page 11).
If using an MHGRV-X Controller along with the MODGAS-XW2
Controller in Stand-Alone, the SAT Sensor always attaches to the
MODGAS-XWR2 Controller.
Figure 5: 2 Modulating Valves, 1 Ignitor, 1 Stage Stand-Alone Wiring Diagram