Commissioning Instructions

Step 7 – Default values
A6V12035398
Unrestricted
12
(Note that there may be other acceptable configurations that may use proportional and
integral control.)
Step 4: Determine the control range for CO2 ppm.
(In an ideal DCV implementation the control range will be an impulse. In this example,
control range = 100 ppm.)
Step 5: Calculate the Gain on the ventilation PID controller object.
Formula: Gain = 100% / control range
Step 6: Calculate the “Setpoint room air quality for comfort” and the “Setp.room.air
quality for pre-comfort”. They should be the same value.
Note: this should be adjusted via field programming if outside air CO2 is measured.
Formula: CO2 set point = OA ppm + 600 ppm – control range; where OA_PPM = 400
ppm