Orion System SA Controller - Manual (Page 16)

Zone
Zone
Installation & Wiring
SA Controller Technical Guide 16
Entering Air Temperature Sensor Wiring
Entering Air Temperature Sensor
The OE231 Entering Air Temperature Sensor must be wired as shown
in Figure 11 below for proper operation of the SA Controller. The En-
tering Air Temperature Sensor is a 10K Type III thermistor sensor. The
sensor should be mounted as shown in an area that is protected from the
elements and direct sunlight.
Figure 11: OE231 – Entering Air Temperature Sensor Wiring
NOTE: For Dual Cabinet Units, mount the Entering Air
Temperature Sensor in an Entering Air Duct area that is common
to both SA Units.