Controls
Wiring the wall-mounted CO2 sensor
DVC setpoint potentiometer on economizer module can be adjusted as follows:
0% - 500ppm, 50% - 1000 ppm,
100% - 1500ppm
The outside air damper will modulate from minimum position setting to up to 100% while attempting to maintain the CO2 setpoint.
Wiring the duct-mounted CO2 sensor
1.Connect the common wire from the controller to the ground terminal (terminal 0) (Figure 16).
2.For voltage output, connect the signal wire to terminal V.
3.Connect the power according to the guidelines in Power supply requirements.
Figure 15 - Wall-mounted CO2 sensor wiring
Figure 16 - Terminal connections and LED locations
2
3
1
4
1 = Outer jumper
2 = Power terminal
3 = Ground terminal
4 = Output terminals
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