Orion System Modular VAV/Zone Controller - Manual (Page 10)

Zone Controller Actuator Package Wiring
Figure 7: Modular VAV/Zone Controller Actuator Package Wiring
Wiring Considerations
The OE325-01 Zone Controller Expansion Module connects to the
Modular VAV/Zone Controller Actuator Package by means of a modular
cable provided with the expansion module. Power is supplied to the
Zone Controller Expansion Module by means of this modular cable.
Screw terminals are provided for connection of field wiring to the relay
and analog outputs. The Expansion Module is used to supply extra
relays and/or analog outputs to control fan and heating functions for
the Modular VAV/Zone Controller Actuator Package.
The OE325-01 Zone Controller Expansion Module is always shipped
loose for field mounting by others. Be careful not to damage the elec-
tronic components when mounting the controller. Remove the controller
from its snap track mount. Mark the control enclosure base using the snap
track as a template. Drill pilot holes in the enclosure base and secure the
snap track to it using sheet metal screws. Do not allow metal shavings to
fall onto the circuit board. Re-attach the controller to the snap track. Be
sure the mounting location is close enough to the Modular VAV/Zone
Controller Actuator Package so that the supplied modular cable will
reach from it to the Zone Controller Expansion Module.
Warning: The 3 relay outputs available on the OE325-01
Expansion Module are each rated for 1 Amp. @ 24
VAC. If your device load exceeds these limits, a
pilot duty relay (by others) must be used in the
circuit.
The wiring consideration information previously outlined for the Modu-
lar VAV/Zone Controller Actuator Package should be followed when
wiring the OE325-01 Zone Controller Expansion Module.
10 Modular ZCAP Technical Guide
Installation & Wiring