Auto-Zone Control Systems Auto-Zone Basic Systems Installation & Operation (Version 02C) - Manual (Page 53)

Auto-Zone Basic Section 2
Installation and Wiring 2-23
Supply Air Temperature Sensor
The supply air temperature sensor should be located as close to the rooftop unit dis-
charge as possible for best response. It should also be mounted upstream of the bypass
damper for best results. 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 airtight seal. For best accuracy, apply insula-
tion on the outside of the duct, over the sensor. This will help prevent thermal gradients
from affecting the sensor.
Figure 2-17: Supply or Return Air Sensor Dimensions and Installation
M ounting Plate
G asket
A dhesive Backed Drill Guide
M ounting Template
11-1/2" (OE231)
5-1/2" (OE230) Mounting Plate
4. 0"
3/4"
1/4" Hex Head Sheet Metal Screws
T hread
T ogether
Duct Work
Drill 5/16" Hole In Ductwork For Probe
L eads Are Non-polarized.
Butt Splice Leads To 24 Gauge
Wire Minimum. Connect Leads
T
o "Analog In" And "Ground"
A t Controller.