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Honeywell C7046A User Manual

C7046a,b,c,d air temperature sensors, Caution, Application

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Copyright © 2004 Honeywell International Inc. • All Rights Reserved

INSTALLATION INSTRUCTIONS

62-0216

C7046A,B,C,D

Air Temperature Sensors

APPLICATION

The C7046 series of Air Temperature Sensors function
as primary and/or secondary sensors in electronic control
systems.

INSTALLATION

When Installing this Product...

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a hazard-
ous condition.

2. Check the ratings given in the instructions and on

the product to make sure the product is suitable for
your application.

3. Installer must be a trained, experienced service

technician.

4. After installation is complete, check out product

operation as provided in these instructions.

CAUTION

Electrical Shock or Equipment Damage
Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.

The sensor assembly (see Fig. 1) consists of an
aluminum sensor probe (element housed internally) with
attached flange that can be mounted on a flat duct or
plenum surface, or in a 2 in. by 4 in. (51 by 102 mm)
junction box using two No. 8 screws. Connections to the
sensor are made through two 6 in. (152 mm) leadwires.

Fig. 1. C7046A,B,C,D Air Temperature

Sensor dimensions in in. (mm).

NOTE: Sensor probe diameter is 1/4 in. (6 mm).

Location

The sensor should be located in the air duct or plenum
where it will sample an average air temperature. Avoid
locations where air stratification can cause sensing
errors.

Mounting

Mounting on Flat Duct or Plenum Surface (Fig. 2)

1. Cut a 3/8 in. (9.5 mm) hole in the duct or plenum

surface at the desired location.

2. Insert sensor probe into the duct or plenum until

the flange rests against the duct or plenum wall.

3. If necessary, use the flange as a template to mark

and drill two holes for No. 8 mounting screws.

4. Fasten the sensor to the duct or plenum surface

with two No. 8 sheet metal screws (not provided).

Mounting in a Junction Box (Fig. 3)

1. Cut a 3/8 in. (9.5 mm) hole in the duct or plenum

surface at the desired location.

2. Remove the center rear knockout from the junction

box and insert the sensing probe through the
knockout with the flange flat against the outlet box.

3. Using the flange as a template, mark and drill two

holes in the junction box and the duct or plenum
surface for No. 8 mounting screws.

4. Insert sensor probe through both the junction box

knockout and the 3/8 in. (9.5 mm) hole drilled in the
duct or plenum and fasten the junction box and
sensor to the duct or plenum surface.

1/4 (6)
DIAMETER (2 HOLES)

M22402A

1

(25)

3/4 (19)

2 (51)

1 (25)

1/16 (2)

8 (203)

NEOPRENE
GASKET

5/16 (9) DIAMETER

(BUSHING)

LOCKING PUSH

NUTS (2)

PLASTIC

BUSHING

1

INSERTION LENGTH DEPENDS UPON THE MODEL.

1