60
VCCX2 Controller Technical Guide
Line
Voltage
GND
18-30 VAC
40 VA
Transformer
minimum
Supply
Air Temperature
Sensor
Mount In Supply
Air Duct
RED
GRN
WHT
BLK
Condenser Valve #1
HGR Valve #1
RED
GRN
WHT
BLK
Supply Air Temperature
Sensor connects to AI3 & GND
On VCCX2 Controller
Set Jumper to
NORMAL.
Fan
Compressor
HGR Solenoid Valve
2 Position HGR Valve (Optional)
C1
C2
EBC E-BUS cable
connects to VCCX2
Expansion port
EBC
E-BUS
cable
connects
to Reheat
Expansion
Module
Alternate Configuration
3 Way Valve
RED
GRN
WHT
BLK
MHGRV-X Wiring
The ASM01670 MHGRV-X is designed to control a Modulating
Hot Gas Reheat Valve to maintain a desired Supply Air
Temperature and Dehumidication setpoint. In addition, up to
seven ASM01687 Reheat Expansion Modules can be connected
to the MHGRV-X and to each other for additional Reheat Valve
Control. The MHGRV-X directly connects to the VCCX2
Controller or indirectly using an E-BUS Expansion Board via
an E-BUS cable. See Figure 41, this page.
NOTE: If using multiple E-BUS sensors or modules, a
E-BUS hub or adapter board may be required.
The following information will be passed between the MHGRV-X
and the VCCX2 Controller:
• Reheat Enable command
• Supply Air Temperature Setpoint
• The Reset Supply Air Temperature Setpoint
• The Supply Air Temperature Reset Signal
If the communication is interrupted between the MHGRV-X and
the VCCX2 Controller, the MHGRV-X will revert to stand-alone
operation.
For more information, refer to the MHGRV-X Technical Guide.
Figure 41: MHGRV-X to VCCX2 Controller Wiring
WIRING
MHGRV-X
To Next Page
Loading...
Need help?
General
