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VCCX2 Controller Technical Guide
VCC-X EM1 Expansion Module Outputs
The VCC-X EM1 Expansion Module must be connected to 24
VAC as shown in the wiring diagram below. Please see
Table 1,
page 24
for correct VA requirements to use when sizing the
transformer(s) used for powering the expansion module.
Also, please note that when wiring the VCC-X EM1 Expansion
Module, its contacts must be wired as wet contacts (connected
to 24 VAC).
See
Figure 27, this page
for output wiring.
WARNING:
Observe Polarity! All boards must be
wired with GND-to-GND and 24 VAC-
to-24 VAC. Failure to observe polarity
will result in damage to one or more of the
boards. Expansion modules must be wired
in such a way that the expansion modules
and the controller are always powered
together. Loss of power to the expansion
module will cause the controller to become
inoperative until power is restored to the
expansion module.
(for Return Plenum Pressure
Control Applications)
Belimo Actuator wiring
shown. Consult factory
for other manufacturer
wiring instructions.
1 amp maximum load.
Figure 27: VCC-X EM1 Expansion Module Output Wiring
WIRING
VCC-X EM1 Expansion Module Outputs
