Orion System MODGAS II - Manual (Page 8)

Section 1 MODGAS II Controller
1-4 Overview and Wiring
Supply Air Temperature Sensor
The supply air temperature sensor should be located in the ductwork downstream of the unit
supply air connection. Locate the sensor in the center of the widest part of the duct. Use the
supplied template and a
5 /
16
" drill to make a hole for the sensor. Install the gasket over the probe
and mount securely to the duct using the supplied sheet metal screws. Be sure the gasket is
compressed to provide an air tight seal. For best accuracy, apply insulation on the outside of the
duct, over the sensor. This will help prevent thermal gradients from affecting the sensor.
Figure 1-3: Supply Air Sensor Installation