2 | Telaire T5100-LED Series
!WARNING!
T5100-LED 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.
T5100 Wiring Diagrams
Caution!
The T5100-LED 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 de-
vices. Wiring the units as 2-wire or loop-powered
devices will irreparably damage the sensors and
void the warranty
Figure 2: Wiring for 3-Wire System
AC Power
Figure 3: Wiring for 4-Wire System
AC Power
Figure 4: Wiring for CO
2
Sensor
Voltage Output
LED Display
The T5100-LED has a 5-color LED display that
shows the approximate CO
2
concentration. From
left to right, the display shows:
•
Blue <800 ppm
•
Green 800-1200 ppm
•
Yellow 1200-1500 ppm
•
Red >1500 ppm
•
Two red >2000 ppm
Sensing Duct CO
2
Concentrations
Duct-Mounting the Enclosures
T5100-LED 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.
