Zone
Zone
STAND-ALONE WIRING
MODGAS-XWR-1 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 confi guration is used to control two modulating gas valves (one
on each header), in which the fi rst and second valves operate together
for one modulating stage. Both valves are connected to Heat 1 Relay.
NOTE:
Up to 3 additional fi xed heat stages can be used by using
Heat Relays 2, 3 & 4 below and up to 12 more additional
fi 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-XWR
Controller in Stand-Alone, the SAT Sensor always attaches to the
MODGAS-XWR Controller.
Figure 5: 2 Modulating Valves, 1 Ignitor, 1 Stage Stand-Alone Wiring Diagram
