Heat Controller Water Source Heat Pump manual 16, Supply Air Temperature Sensor

WattMaster WHP Section 2

Supply Air Temperature Sensor

The supply air temperature sensor should be located in the duct, as close to the rooftop unit discharge as possible for best response.

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.

Thread Together

Leads Are Non-polarized.

Butt Splice Leads To 24 Gauge

Wire Minimum. Connect Leads

To "Analog In" And "Ground"

At Controller.

4.0"

3/4"

5-1/2" (OE230)	Mounting Plate
11-1/2" (OE231)

1/4" Hex Head Sheet Metal Screws

Mounting Plate

Gasket

Adhesive Backed Drill Guide

Mounting Template

Duct Work

Drill 5/16" Hole In Ductwork For Probe

Supply Air Temperature Sensor

Figure2-16:	2-21
Installation and Wiring