Product Overview

Table Of Contents

Choose a suitable location to mount the OAS. The OAS can be configured to mount on an outside

air duct or an outside wall. If mounting on a duct, make sure there are no critical components

behind the duct and drill a 3/8” hole into the duct. Assemble the components as shown below to

allow the sensor to sense outside air moving through the duct. Now fasten the box to the duct using

the two 1/4” hex head self tapping screws provided. Route 2x18AWG field wire through the wire

entrance grommet and into the box. Use the provided wire nuts to connect to the OAS sensor

wires. Place the cover back on and secure it. Connect the #18AWG field wires to the correct

terminals on your Ultra-Zone control panel. NOTE:

carefully. Sensing Outside Air Temperature in a duct can lead to inaccurate readings if the air is not

actually moving through the duct.

Choose your sensor location and configuration

1. Pull the sensor assembly into the tube assembly as shown

until the tip of the sensor is even with the end of the tube.

2. Slide the tube assembly through the center hole of the box

all the way and press the bracket down onto the alignment posts.

3. Slide the rubber tip onto the end of the tube.

You may now mount the assembly to the duct!

COVER

INSIDE VIEW AFTER ASSEMBLY

Model OAS

(OUTSIDE Air Sensor)

Page 3

CONTROLS INC.

Excellence Without Compromis

385 Hwy. 33 Englishtown, NJ 07726

Ph: 800-446-3110 - Fx: 732-446-5362

Forced Air Zone Controls