T7022A
Remote Temperature Sensor
INSTALLATION INSTRUCTIONS
IMPORTANT
APPLICATION
All wiring must agree with applicable codes,
ordinances and regulations.
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.
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.
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.
Q7300
INSTALLATION
T
T
T7022
When Installing this Product...
1. Read these instructions carefully. Failure to follow
them could damage the product or cause a
hazardous condition.
M17843
Fig. 1. Typical wiring diagram.
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.
Location
The T7022 Thermostat must be mounted in the return-air
flow in ducts (see Fig. 2 and 3) or light troffers (see Fig. 4
is not affected by heat from the lights or other sources.
4. After installation is complete, check out product
operation as provided in these instructions.
Mounting
CAUTION
The T7022 can be mounted in a duct with the furnished
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.
Erratic System Operation Hazard.
Failure to follow proper wiring practices can
introduce disruptive electrical interference
(noise).
Keep wiring at least one foot away from large
inductive loads such as motors line starters,
lighting ballasts, and large power distribution
panels.
Shielded cable is required in installations where
these guidelines cannot be met.
When using the mounting bracket, the maximum duct
insertion length for the T7022 is approximately 2-3/4 in.
Ground shield only to grounded controller case.
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.
CAUTION
Electrical Shock or Equipment Damage
Hazard.
Can shock individuals or short equipment
circuitry.
Disconnect power supply before installation.
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