Orion System VCM-X Modular E-BUS - Manual (Page 17)

VCM-X Modular E-BUS Controller Technical Guide
INSTALLATION & WIRING
17
Figure 13: Economizer Damper Actuator Wiring
24 VAC Power Source
Sized For Actuator VA Load
24 V
A
C
GND
2-10 VDC
Output
Economizer Damper Actuator
(Belimo Actuator Shown)
Y1 3
+ 2
COM - 1
Belimo Actuator Wiring
Shown. Consult Factory For
Other Manufacturer Wiring
Instructions
VCM-X E-BUS Controller
GND
AO1
AI1
AI1 SET
AI2 SET
AI3 SET
AI4 SET
AI5 SET
AI7 SET
AI2
AI3
AI4
AI5
AI7
Economizer Feedback 5
NOTE: For Economizer
Actuator Feedback Signal,
See Wiring For The
VCM-X Expansion Module.
AI3
Economizer Damper Actuator
The Economizer Damper Actuator signal voltage output is a 2-10 VDC
output. This signal output is used by the VCM-X E-BUS Controller
to modulate the Economizer Damper Actuator in order to control the
amount of Outdoor Air delivered to the HVAC unit for Free Cooling and/
or Indoor Air Quality requirements. See Figure 13 for detailed wiring.
Warning: It is very important to be certain that all wiring is
correct as shown in the wiring diagram below. Failure to observe
the correct polarity will result in damage to the actuator or VCM-X
E-BUS Controller.
Economizer Damper Actuator Wiring