MODGAS-XWR-1 Technical Guide
STAND-ALONE WIRING
5
1V1IGN1S - Stand-Alone Wiring
Figure 2: One Modulating Valve, One Ignitor, One Stage Stand-Alone Wiring Diagram
One Modulating Valve, One Ignitor,
One Stage (1V1IGN1S) -
Stand-Alone Wiring
This configuration operates as Stand-Alone (
Figure 2, below
) or
communicating with an AAON Unit Controller (
Figure 9, page 12
).
This confi guration is used to control one modulating valve, which must
be placed on the gas valve 1 header (attached 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.
