AAON MODGAS-XWR2, Техническое руководство

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COMMUNICATING WIRING
MODGAS-XWR2 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 configuration operates as Stand-Alone ( Figure 5, page 8 ) or
communicating with an AAON Unit Controller (
Figure 13, below
).
This configuration is used to control two modulating gas valves (one
on each header), in which the first and second valves operate together
for one modulating stage. Both valves are connected to Heat 1 Relay.
NOTE: Up to 3 additional fixed heat stages can be used by using
Heat Relays 2, 3 & 4 below. If additional fixed stages
are required, these should be configured 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