Orion System VCM-X Modular E-BUS - Manual (Page 33)

VCM-X Modular E-BUS Controller Technical Guide
INSTALLATION & WIRING
33
Return Air Bypass
The VCM-X E-BUS Controller can be confi gured for AAON ® PAC
or DPAC control schemes. Both AAON ® PAC and DPAC control
schemes provide improved moisture removal capabilities while utiliz-
ing internal space loads for reheat by redirecting the Return Air around
the Evaporator Coil instead of through the coil. See the AAON
® PAC
and DPAC applications section of this manual on page 6 for complete
operation details.
The AAON ® PAC and DPAC control schemes utilize a Return Air By-
pass Damper Actuator and a Return Air Damper Actuator to modulate
the Return Air and Return Air Bypass Dampers to control the amount
of air that is redirected around the Evaporator Coil.
The AAON ® DPAC control scheme provides improved moisture re-
moval capabilities and tighter temperature control than the AAON ® PAC
controls scheme by combining Copeland Digital Scroll™ Compressor
control in addition to Return Air Bypass control.
See Figure 30 below for detailed wiring of the Return Air Bypass and
Return Air Damper Actuators. See Figure 19, page 22 for detailed wir-
ing of the Copeland Digital Scroll™ Compressor.
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 could result in damage to the Damper Actuator
or the VCM-X Expansion Module.
Figure 30: Return Air Bypass Wiring
Return Air Bypass Wiring
AO5
AO4
GND
Modular Cable
Connect To VCM-X E-BUS Controller
Modular Cable
Connect To Next Expansion
Board (When Used)
24 VAC
GND
10 VA Minimum Power
Required For
VCM-X Expansion Module
WARNING!!
Observe Polarity! All boards must be wired with GND-to-GND and 24VAC-to-24VAC. 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.
Return Air Bypass
Damper Actuator
(0-10 VDC)
Return Air
Damper Actuator
(0-10 VDC)
Belimo Actuator Wiring
Shown. Consult Factory
For Other Manufacturer
Wiring Instructions.
3 Y1
3 Y1
2 +
2 +
1 COM
1 COM
VCM-X
Expansion
Module
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
RELAY 2
RELAY 1
RELAY 3
RELAY 4
RELAY
COMMON
I2C
EXPANSION
I2C
EXPANSION
AO1 = BUILDING PRESSURE CONTROL VFD OR
DAMPER ACTUATOR (0-10 OR 2-10 VDC)
= MODULATING HEATING SIGNAL
(0-10 VDC OR 2-10 VDC)
= MODULATING COOLING/DIGITAL SCROLL
SIGNAL (0-10 VDC, 2-10 VDC OR 1.5-5 VDC)
= RETURN AIR DAMPER ACTUATOR
(0-10 VDC)
= RETURN AIR BYPASS DAMPER ACTUATOR
(0-10 VDC)
= GROUND FOR ANALOG OUTPUTS
= GROUND FOR ANALOG OUTPUTS
AO2
AO3
AO4
AO5
GND
GND
BI1 = HOOD ON - N.O. INPUT
BI2
BI3
BI4
BI5
BI6
BI7
BI8
= DIRTY FILTER - N.O. INPUT
= PROOF OF FLOW - N.O. INPUT
= REMOTE FORCED OCCUPIED - N.O. INPUT
= REMOTE FORCED HEATING - N.O. INPUT
= REMOTE FORCED COOLING - N.O. INPUT
= SMOKE DETECTOR - N.C. INPUT
= REMOTE DEHUMIDIFICATION - N.O. INPUT
ANALOG INPUT
JUMPER SETTINGS
MUST BE SET AS
SHOWN FOR
PROPER
OPERATION
24 VAC POWER ONLY
WARNING! POLARITY MUST BE
OBSERVED OR THE BOARD
WILL BE DAMAGED
www.orioncontrols.com
AI1
AI2
AI3
AI4
THERM
THERM
THERM
THERM
4-20mA
4-20mA
4-20mA
4-20mA
0-10V
0-10V
0-10V
0-10V
0-5V
0-5V
0-5V
0-5V
ANALOG INPUT
JUMPER
SETTINGS
RELAY 1 = RELAY 3 =
RELAY 2 = RELAY 4 =
IT IS SUGGESTED
THAT YOU WRITE THE
DESCRIPTION OF
THE RELAY OUTPUTS
YOU ARE USING IN
THE BOXES
PROVIDED ABOVE
WITH A PERMANENT
MARKER (SHARPIE®)
WattMaster Label
#LB102034-01
NOTE:
ALL BINARY INPUTS MUST BE 24 VAC ONLY.
AI1 = OUTDOOR AIR RH SENSOR (0-5 VDC)
AI2
AI3
AI4
GND
GND
= INDOOR AIR RH SENSOR (0-5 VDC)
= CO2 (0-10 VDC)
= BUILDING STATIC PRESSURE (0-5 VDC)
= GROUND FOR ANALOG INPUTS
= GROUND FOR ANALOG INPUTS
+V
SIG
GND
PR OUT
GND
SUCTION PRESSURE
TRANSDUCER CONNECTION
FOR HVAC UNITS WITHOUT
DIGITAL COMPRESSOR
TO VCM-X INPUT
TERMINALS AI5 & GND
OE333-23-EM-A VCM-X EXPANSION MODULE
VCM
WA
RN
IN
G
OB
SE
RV
E
POLAR
IT
Y
RELAY CONTACT
RATING IS 1 AMP
MAX @ 24 VAC
RELAY 2
RELAY 1
RELAY 3
RELAY 4
RELAY
COMMON
I2C
EXPANSION
I2C
EXPANSION
AO1 = BUILDING PRESSURE CONTROL VFD OR
DAMPER ACTUATOR (0-10 OR 2-10 VDC)
= MODULATING HEATING SIGNAL
(0-10 VDC OR 2-10 VDC)
= MODULATING COOLING/DIGITAL SCROLL
SIGNAL (0-10 VDC, 2-10 VDC OR 1.5-5 VDC)
= RETURN AIR DAMPER ACTUATOR
(0-10 VDC)
= RETURN AIR BYPASS DAMPER ACTUATOR
(0-10 VDC)
= GROUND FOR ANALOG OUTPUTS
= GROUND FOR ANALOG OUTPUTS
AO2
AO3
AO4
AO5
GND
GND
ANALOG INPUT
JUMPER SETTINGS
MUST BE SET AS
SHOWN FOR
PROPER
OPERATION
24 VAC POWER
ONLY
WARNING!
POLARITY
MUST BE
OBSERVED OR
THE BOARD
WILL BE
DAMAGED
AI1
AI2
AI3
AI4
THERM
THERM
THERM
THERM
4-20mA
4-20mA
4-20mA
4-20mA
0-10V
0-10V
0-10V
0-10V
0-5V
0-5V
0-5V
0-5V
ANALOG INPUT
JUMPER
SETTINGS
RELAY 1 = RELAY 3 =
RELAY 2 = RELAY 4 =
IT IS SUGGESTED
THAT YOU WRITE THE
DESCRIPTION OF
THE RELAY OUTPUTS
YOU ARE USING IN
THE BOXES
PROVIDED ABOVE
WITH A PERMANENT
MARKER (SHARPIE®)
WattMaster Label
#LB102034-01-A
Rev.: 1L
NOTE:
ALL BINARY INPUTS MUST BE 24 VAC ONLY.
+V
SIG
GND
PR OUT
GND
SUCTION PRESSURE
TRANSDUCER CONNECTION
FOR HVAC UNITS WITHOUT
DIGITAL COMPRESSOR
TO VCM-X INPUT
TERMINALS AI5 & GND
BI1 = EMERGENCY SHUTDOWN - N.C. INPUT
= DIRTY FILTER - N.O. INPUT
= PROOF OF FLOW - N.O. INPUT
= REMOTE FORCED OCCUPIED - N.O. INPUT
= REMOTE FORCED HEATING - N.O. INPUT
= REMOTE FORCED COOLING - N.O. INPUT
= HOOD ON - N.O. INPUT
= REMOTE DEHUMIDIFICATION - N.O. INPUT BI2
BI3
BI4
BI5
BI6
BI7
BI8
www.aaon.com www.orioncontrols.com
VCM-X Expansion Module
Orion No.:OE333-23-EM
AAON No.:
R69190
AI1 = OUTDOOR AIR RH SENSOR (0-5 VDC)
AI2
A3
AI4
GND
GND
= INDOOR AIR RH SENSOR (0-5 VDC)
= ECONOMIZER FEEDBACK
= BUILDING STATIC PRESSURE (0-5 VDC)
= GROUND FOR ANALOG INPUTS
= GROUND FOR ANALOG INPUTS
I