Orion System PREHEAT-X - Manual (Page 23)

PREHEAT-X Technical Guide
APPENDIX A
23
Leaving Air Temperature Sensor Installation
Mounting the Leaving Air Temperature
Sensor
• The Leaving Air Temperature (LAT) Sensor should be
located in PREHEAT-X box’s output location.
• Locate the sensor in the center of the widest part of the
PREHEAT-X box wall. 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 box wall 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
box wall, over the sensor. This will help prevent thermal
gradients from affecting the sensor.
Figure 7: Leaving Air Temperature Sensor Installation
Leads Are Non-Polarized. Butt Splice Leads
To 24 Gauge Wire Minimum.
Connect Leads to ”AIN1 And/Or “AIN2” And “GND” On
PREHEAT-X Controller. See Figure 2 on page 5 for
details.
Inside Wall of PREHEAT-X Box
WARNING: Make sure your Leaving Air Temperature
Sensor(s) are mounted and wired according
to these instructions prior to testing the unit
or else the modulating valve will not control
properly and may damage your equipment.