Orion System VCM Component - Manual (Page 84)

Component & System Wiring 84
MODGAS II Controller Wiring When Used With The VCM Controller
FILENAME
DATE: B. Crews
DESCRIPTION: PAGE
DRAWN BY:
When Used With Orion VCM Controller
JOB NAME
03/09/06
O-MODGASII-VCM-Wr1.CDR
AAON MODGAS II Wiring
1
Line
GND
24VAC
Mount In
Unit Supply
Air Duct
Supply
Air Temp.
Sensor
Induced
Air Blower
Speed
Control
Hi Speed
Low Speed
Heat Enable
Signal (24 VAC)
W1
CR2-1
SC
CR1-A
CR1-B
L1
L2
N.O.
N.O. N.O. N.O. N.O.
N.C.
40 VA
Transformer
Minimum
Motor
1.)24 VAC Must Be Connected So
That All Ground Wires Remain
Common.
2.)All Wiring To Be In Accordance
With Local And National Electrical
Codes And Specifications.
PHILIPS
EPROM
U3
U5
RAM
CX2
1
U2
R1
C3
U4
CX3
CX4
YS101818 552
PROCESSOR
BOARD
CX5
C1
U1
R2
CX1
CX6
WDOG
U6
PHILIPS
P1 C2
C4
V1
V3
K3
V2
K2 FT
K1
TB1
DISCHARGE SETPOINT
F
F
1
1
O
O
F
F
RESET LIMIT
AUX
COM AUX
LO SPD
FAN
LO
SPD
FA N
ADD
ADD
4
4
2
2
16
16
8
8
64
64
32
32
128
128
R4
GAS VA
LV
E
SER.
#:
VOUT
D9
V5
C13
GND
TB4
POWER
YS101826PREV
1
MODULA
TING
GAS
BOARD
PJ1
SHLD
RV
1
STATUS
P1
R8 RST IN
J01
AUX IN
GND
HEAT EN
C2
R1
R3
R1
P
D2
R9
C1 SAT
+VDC
VR1
R7
D1
R15
P
I2C IN
TB2
R T V4 GND 24V
AC
D8
U5
C7
R25 R26 R26
C6
POWER TB3
CR1
CR2
GV1
GV2
2 Gas
Valves Can
Be Connected
As Shown
Modular Cable Connects To
HVAC Unit Controller
Caution:
If your HVAC unit is supplied with the MODGAS II controller with or without an MHGRV II controller, the Supply Air Temperature Sensor must always
be wired to the MODGAS II controller. If your HVAC unit is supplied with only the MHGRV II controller, the Supply Air Temperature Sensor must be
connected to the MHGRV II controller. If you have either of these controllers on your HVAC unit and have a Supply Air Temperature Sensor connected
to the VCM controller, your controls will not function correctly. Only one Supply Air Temperature Sensor can be used on an HVAC unit.
Wiring For MODGAS II When Used With Orion VCM Controller
Note:
1.) When The MODGAS II Controller Is Used With The VCM
Controller It Must Have (1) Relay Output On The VCM Controller
Configured For The MODGAS II Controller In Order To Function
Correctly. This Relay Output Must Be Configured When Setting-up
The Controller(s) Operating Parameters. See the VCM Controller
Operator Interfaces Technical Guide For Complete Controller
Programming and Configuration Information.