Honeywell Stud Sensor T7022A User Manual

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  
and 5). All mounting locations must be where the sensor  
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  
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.  
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.  
® U.S. Registered Trademark  
Copyright © 2001 Honeywell • All Rights Reserved  
60- 0247- 2  
 

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