Orion System HB Controller - Manual (Page 13)

Installation & Wiring
13 HB Controller Technical Guide
Controller Installation & Wiring
EXTERNAL
C7
INTERNAL
ECONO
GND
RAB
POS
TB2
MHGRV
RESET
JO2 JO1
ECONO
POS POS RAB
Optional Jumper
Locations
For External Control
External Control Inputs
0-10VDC Input Signal for
Modulating Hot-Gas Reheat
2-10VDC Economizer Signal
0-10VDC Return Air Bypass Signal
Common Ground for External Signals
Note:
The factory jumpers are located on
the bottom two pins for each 3-pin
header. For field control of either the
Economizer and/or the Return Air
Bypass, move their respective
jumpers to the “External” position on
the jumper pins as shown.
Figure 8: Field Wiring & Jumper Settings for Mod Hot Gas Reheat, Economizer, and Return Air Bypass