Data Aire dap4 User Manual page 21

MENU B – SETPOINTS continued
Total Flow: This is the total air flow of all units currently running in the zone.
Max Flow: This is the calculated maximum air flow that is capable for the zone.
Zone AF Demand: This is the calculated value based on how much of the total
airflow makes up the max flow.
Note: This screen is only shown on the gPOD model.
Setpoint: This is the amount of CO2 in parts per million that the controller will
maintain when CO2 regulation is required. Range of adjustment is 100 to
2000ppm with a default value of 1000ppm.
Deadband: This is the amount CO2 may drop below the CO2 setpoint before the
CO2 valve is modulated. Range of adjustment is 25 to 1000ppm with a default
value of 25ppm.
Min Valve On: This is the minimum time that the C02 valve will be turned on
when there is demand. Range of adjustment is 0 to 32,767 seconds with a default
value of 5 seconds.
Valve PWM: This setting meters how fast CO2 is injected into the air by
modulating the on/off frequency in a 10 second period. For example, if set to 40%,
the valve will be on 4 seconds and off for 6 seconds. Range of adjustment is 10 to
100% with a default value of 10%.
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