COMMUNICATING WIRING
MODGAS-XWR-1 Technical Guide
12
One Modulating Valve, One Ignitor,
One Stage (1V1IGN1S) -
Communicating Wiring
This confi guration operates as Stand-Alone (
Figure 2, page 5
) or
communicating with an AAON Unit Controller (
Figure 9, below
).
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).
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.
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.
1V1IGN1S - Communicating Wiring
Figure 9: One Modulating Valve, One Ignitor, One Stage Communicating Wiring Diagram
