Honeywell T7022A User Manual

T7022a remote temperature sensor, Caution, Application

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Remote Temperature Sensor



The T7022 Remote Temperature Sensor is a non-

adjustable thermistor sensor. Its primary use is with the
T7300 Programmable Commercial Thermostat (only in

return air) to control heating or cooling equipment.

NOTE: The T7022 can also be used with a T7100F,

provided the proper Q7100 subbase√one

capable of handling more than one stage of
heat√is used.


When Installing this Product...

1. Read these instructions carefully. Failure to follow

them could damage the product or cause a
hazardous 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


4. After installation is complete, check out product

operation as provided in these instructions.


Erratic System Operation Hazard.

Failure to follow proper wiring practices can
introduce disruptive electrical interference


Keep wiring at least one foot away from large

inductive loads such as motors line starters,
lighting ballasts, and large power distribution


Shielded cable is required in installations where

these guidelines cannot be met.

Ground shield only to grounded controller case.


Electrical Shock or Equipment Damage

Can shock individuals or short equipment

Disconnect power supply before installation.


All wiring must agree with applicable codes,
ordinances and regulations.

Wiring (Fig. 1)

Wiring for the T7022 Remote Temperature Sensor can

be run with class 2 wire in accordance with the National
Electrical Codes. Conduit and/or shielding are not

necessary for satisfactory operation, but conduit may be
required by local codes or practices.






Fig. 1. Typical wiring diagram.


The T7022 Thermostat must be mounted in the return-air

flow in ducts (see Fig. 2 and 3) or light troffers (see Fig. 4
and 5). All mounting locations must be where the sensor

is not affected by heat from the lights or other sources.


The T7022 can be mounted in a duct with the furnished
bracket, or in a light troffer as shown in Fig. 4 and 5 with

two rubber grommets (not supplied) if proper spacing
is available. Mounting can be directly in the return-air

passage or in an air-sampling box. The rubber grommets
can be used to wedge the sensor in slot openings of

approximately 3/8 in. to 1/2 in. wide.

When using the mounting bracket, the maximum duct
insertion length for the T7022 is approximately 2-3/4 in.

NOTE: A piece of 3/8 in. diameter conduit can be

used to extend the sensor further inside a duct
(see Fig. 3). The use of such an extension can

increase the maximum insertion length to
approximately 9-1/2 in.

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