Telaire T5100 Series User Instructions Download Page 2

Page 2

Telaire T5100 Series

T5100 Wiring Diagrams 

!WARNING!

T5100 products have two terminal pins that are connected 

inside the sensor to a common/ground: pin #7 on the I/O 

terminal blocks and pin #2 on the power block. Do NOT 

connect positive (hot) 24 VAC power line to terminal 

number #2 of the terminal block.

Caution!

The T5100 products are either 3-wire or 4-wire type 

configurations, powered by either AC or DC voltage. They are 

not 2-wire or loop-powered devices. Wiring the units as 2-wire 

or loop-powered devices will irreparably damage the sensors 

and void the warranty.

Figure 1: Current Wiring for 3-Wire System - AC Power

Figure 2: Voltage Wiring for 3-Wire System - AC Power

Figure 3: Current Wiring for 4-Wire System - AC Power

Figure 4: Voltage Wiring for 4-Wire System - AC Power

Figure 5: Wiring CO2 Sensor Voltage Output to 

Honeywell M7415 Damper Actuator with W7459 Logic 

Module

Sensing Duct CO2 Concentrations

Duct-Mounting the Enclosures

T5100 products can be installed inside the return air ductwork, if needed. 

As an alternative, please consider the T8031 unit. When mounting these 

products inside the ductwork, seal the hole around the wires and leave 
the duct insulation in place to prevent condensation which may damage 
the sensor.

Reviews: