COMMUNICATING WIRING
MODGAS-XWR-1 Technical Guide
16
Figure 13: 2 Modulating Valves, 1 Ignitor, 1 Stage Communicating Wiring Diagram
2 Modulating Valves, 1 Ignitor,
1 Stage (2V1IGN1S) -
Communicating Wiring
This confi guration operates as Stand-Alone (
Figure 5, page 8
) or
communicating with an AAON Unit Controller (
Figure 13, below
).
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. If additional fi xed stages
are required, these should be confi gured and wired to the
AAON Unit Controller’s relays.
For VCM-X Controllers, use an I
2
C Cable connecting to the appropriate
I
2
C port on the controller.
For all other controllers, use an E-BUS cable connecting to an E-BUS
port on the controller.
2V1IGN1S - Communicating Wiring
