background image

The FS-TA1 sensor requires 3-wires for power and communication with a 

FS-STAT-32AC(H); as shown in the diagram above. In many situations you will be able to 

simply mount the FS-TA1 sensor on a wall and use the provided 10K internal temperature 

sensor to detect the temperature at the desired location.

Follow the guide on page 3 for alternate installation options for the FS-TA1 sensor. The 

FS-TA1 sensor can be installed at a maximum distance of 500' from a FS-STAT-32AC(H). 

A 10K external temperature probe can be connected to the FS-TA1 sensor up to 100' away.

We recommend using a Founten certified external temperature probe. Contact your local 

Founten distributor for assistance.

Note:

2

Wiring Diagram

Thermostat

FS-TA1 Sensor

R

10K Temperature Sensor

*Range -20˚F to 180˚F

(-28˚C to 82˚C)

C

D

R

C

D

T

Terminal Designations 

T

D

C

R

R − 

24 VAC Power

C − 

Common 24 VAC

D − 

Data Line

T − 

10K Temperature Sensor

For installations where 3-wires already exist or can be run from 

a FS-STAT-32AC(H) thermostat to the FS-TA1 sensor. Mount 

the FS-TA1 sensor directly on the wall. Connect FS-TA1 

sensor’s D, C, and R terminals to matching terminals at  

FS-STAT-32AC(H). 500' maximum distance.

Applications:

– Detect temperature inside of an enclosed refrigerator or 

freezer.

– Install the FS-TA1 sensor in the conditioned area with the 

thermostat placed in a secure, non-visible location.

Remove the internal temperature sensor from the “T” terminal 

of the FS-TA1 sensor.  Connect the external temperature 

probe to the FS-TA1 sensor’s “T” terminal. 100' maximum 

distance.

Connect the FS-TA1 sensor’s D, C, and R terminals to 

matching terminals of the FS-STAT-32AC(H).

The following wiring options should be used to determine the proper wiring approach for 

your application. This guide shows the most common configurations. Contact Founten for 

assistance with configurations not shown on this guide. 

3

Up to 100'  

Up to 150'  

T

D

C

R

Wiring Options:

T

D

C

R

Internal Temperature Sensor

2-Wire External Temperature Probe

Interface a Dry Contact Sensor’s output to the input of the 

FS-TA1 Sensor in order to create an alarm notification through 

your Founten Site Manager.

Remove the provided internal temperature sensor from the “T” 

terminal of the FS-TA1 sensor. Connect the output of the 

external sensor to the FS-TA1 sensor’s “T” terminal.

Connect the FS-TA1 sensor’s D, C, and R terminals to the 

matching terminals of the FS-STAT-32AC(H).

Note: Can be used with normally open or 

normally closed contacts.

T

D

C

R

Interface Dry Contact Relay for Alarm Notification

23-26VAC

Reviews: