
VCM-X Component & Systems Wiring
113
Miscellaneous Diagrams and Technical Information
Figure 89: OE377-00-00054 MHGRV III Controller to VCM-X E-BUS Controller Wiring
MHGRV III Controller Wiring When Used With VCM-X E-BUS
COOL OVR
GND
SAT
HEAT OVR
RHT EN
RESET
AUX IN
GND
GND
+VDC
SH
R
T
VAVLE EXP
STATSTEP
0-5V
0-10V
4-20
THERM
FAN
CMP
VALV E
AUX
COM
CG/HR
CR/HG
CW/HW
CR/HR
AUX IN
RESET LIMIT SETPOINT
ADD ADD
24VAC
GND
REC
POWER
YS102138 REV 2
HOT GAS REHEAT III
AOUT
GND
CHASSIS GND
EPROM
485
DRV
10A250VAC ~
5A30VDC
SA
VDE
G5Q-1A4
OMRON
DC24V
CHINA
10A250VAC ~
5A30VDC
SA
VDE
G5Q-1A4
OMRON
DC24V
CHINA
10A250VAC ~
5A30VDC
SA
VDE
G5Q-1A4
OMRON
DC24V
CHINA
10A250VAC ~
5A30VDC
SA
VDE
G5Q-1A4
OMRON
DC24V
CHINA
LT1785
SF000093a
Supply Air Temperature Sensor
Connects to AI2 & GND
On VCM-X Controller
FILENAME
DATE:
S. Olson
DESCRIPTION:
PAGE
DRAWN BY:
When Used With Orion VCM-X E-BUS Controller
JOB NAME
06/09/15
MODGASIII-1A-1.CDR
AAON MODGAS III Wiring
1
WHT
WHT
WHT
WHT
BLK
BLK
BLK
BLK
RED
RED
RED
RED
GRN
GRN
GRN
GRN
Condenser Valve #1
Condenser Valve #2
HGR Valve #1
HGR Valve #2
Supply
Air Temperature
Sensor
(Optional) HGR Valve Slave Board #1
Only Required When More Than
One Set Of Condenser & HGR
Valves Are Needed
MHGRV III Controller
Mount In Supply
Air Duct
Modular Cable
Connects To VCM-X
Expansion
Port
Not Required When
Only One Set Of
Condenser & HGR
Valves Is Used
Line
GND
24VAC
40 VA
Transformer
Minimum
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