Orion System RNE Modular Controller - Manual (Page 23)

RNE Modular Controller Field Technical Guide
INSTALLATION AND WIRING
23
OAT Sensor Wiring
Outdoor Air
Temperature Sensor
AI4
GND
Make Splice Connections
Inside Sensor Enclosure
As Shown. Seal All Conduit
Fittings With Silicone
Sealant
Mount Sensor Outdoors
In Shaded Protected
Area & In Upright
Position As Shown
Be Sure Jumper Is Set
For THERM
On AI4 For Outdoor
Air Temperature Sensor
AI1
AI1 SET
AI2 SET
AI3 SET
AI4 SET
AI5 SET
AI7 SET
AI2
AI3
AI4
AI5
AI7
RNE Controller
Outdoor Air Temperature Sensor
The OE250 Outdoor Air Temperature Sensor must be wired as shown
in Figure 13 below for proper operation of the RNE Controller. The
Outdoor Air Temperature Sensor is a 10K Type III thermistor sensor.
The sensor should be mounted in the upright position as shown in an
area that is protected from the elements and direct sunlight. Be sure to
make the wiring splices inside of the Outdoor Air Temperature Sensor
weather-tight enclosure.
Figure 13: OE250 – Outdoor Air Temperature Sensor Wiring
CAUTION: Be sure to mount the Outdoor Air Temperature
Sensor in an area that is not exposed to direct sunlight. The shaded
area under the HVAC unit rain hood is normally a good location.
Unused conduit opening(s) must have closure plugs installed and
must be coated with sealing compound to provide a rain-tight seal.
Water can damage the sensor.