AAON MHGRVX-B2 User Manual

8MHGRVX-B2 Module Technical Guide
WIRING
MHGRVX-B2 Stand-Alone Wiring
Stand-Alone Wiring
In Stand-Alone Mode, the MHGRVX-B2 connects to the E-BUS
port of the Reheat Expansion Module with an E-BUS cable. See
Figure 3, this page.
See the SAT Wiring Conditions and SAT OPTIONS Jumper Settings
in Tables 8 and 9, page 26.
Figure 3: MHGRVX-B2 Stand-Alone Wiring
GND
RED
GRN
WHT
BLK
Condenser Valve #1
HGR Valve #1
RED
GRN
WHT
BLK
Compressor
Flush Active Signal
or Compressor 2
Two Position HGR Valve
or Reversing Valve
C1
C2
COMM
Line
Voltage
40 VA
transformer
minimum
18-30 VAC
Fan
+
-
0-10 VDC
External Reset
Signal
H1 (Dehumidification)
Heating Override
Cooling Override
Mount in
Supply Air
Duct
Supply Air
Temperature
Sensor
E-BUS cable connects to the
Reheat Expansion Module
0-10 VDC Signal
(optional)
Set
jumper to
NORMAL
NOTE:
Only one Supply Air Temperature
Sensor can be used per application.
D15
J3
MODGASx
MODGAS
NORMAL
R59
R60
R60
U9
C46
R61
R75
SAT OPTIONS
SAT
GND
290
AOUT
GND
COOL OVRD
HEAT OVRD
REHEAT EN
RESET IN
AUX IN
GND
TB3
C18
R18
F1
V2
V3
V1
LC
FAN
COMP
VALVE
AUX
COMMON
TB2
STATUS
ALARM
COMM
POWER
CONDENSOR DRIVE
BLACK
WHITE
RED
GREEN
OPENING
TB4
REHEAT DRIVE
BLACK
WHITE
GREEN
RED
OPENING
TB5
C23
.01uF
SERIAL #
DISPLAY
R49
R48
R44
R42
R9
R4
U8
C38
R7
R8
C43
R6
10
ALARM
UP
ENTER
MENU
DOWN
www.aaon.com
AAON P/N: ASM06927
MHGRVX-B2
FAN
COMPRESSOR
CONDENSER
DRIVE TERMINALS
REHEAT VALVE
DRIVE TERMINALS
REHEAT VALVE
AUX
BLACK
GND
AUX INPUT (AI)
RESET SIG (AI)
RHT EN (BI)
SAT (AI)
0-10V VLV (AO)
HEAT OVR (BI)
COOL OVR (BI)
GND
GND
BLACK
WHITE
WHITE
RED
RED
GREEN
GREEN
COMMON
RELAY
OUTPUTS
INPUT/OUTPUT TERMINALS (TYPE)
CONTACT
RATING IS
1 AMP MAX
@ 24 VAC
GND
+24 VAC
LABEL P/N:
G112610
E-BUS
CONNECT
E-BUS
CONNECT

AAON MHGRVX-B2 Specifications

General

Brand	AAON
Model	MHGRVX-B2
Category	Control Unit
Language	English