Data Aire Mini dap4 Installation, Operation & Maintenance Manual page 57

d) Enable CO
The default settings are that CO
these CO
2
password (default is 0002). Advance to Menu-J "Factory settings" and move to the
Options Installed screen. Here you can enable the CO
Options Installed
Electronic Valve: None
Power Meter: No
CO Control: Yes (No)
2
Night CO
2
Note: Please do not enable any options that are not installed in the unit.
e) CO
2
To access the CO
service password (default is 0000). After entering the password advance to
Menu- K "Alarms and Limits" then move to the CO
and adjust the CO
CO
2
Low CO2 Alarm: Yes
Set point: 100ppm (100-5000)
High CO2 Alarm: Yes
Set point: 2000ppm (500-10000)
4) CO control logic
2
CO level control logic (when CO
2
i) The CO
system current conditions such as return air temperature and humidity.
ii) If the CO
energized and a "CO
valve is modulated on/off to control its duty cycle by the PWM rate (0-100% in 10s
intervals). If the Valve PWM is set to 100%, the CO
modulate. The valve will be modulated for at least the "Min Valve On" time even if the CO
level has risen. Once the CO
CO dead band the CO
2
An example of how CO
dead band is 25ppm, Min Valve on is 10 seconds and the Valve PWM is 20%. When the
CO level falls below 1000ppm, the CO
2
seconds until the CO
57 • Mini dap4 User Manual
control and CO
2
control functions, Press Menu button then enter the Factory level
Cntrl: No (Yes)
high and Low level alarm limit settings
high and low level alarm set points, press Menu button and enter
2
alarm level thresholds as desired.
2
Alarms
level (in parts per million) appears on the main display along with other
2
level drops below the CO
2
valve on" message will appear on the main status screen. The CO
2
level rises above the CO
2
valve will remain off.
2
is controlled: let's assure that the CO
2
level rises above 1025ppm.
2
at night control
2
control is Yes and Night CO
2
Alarms screen. Here you can enable
2
control enabled).
2
set point, the output to the CO
2
2
solenoid will cycle on for 2 seconds then off for 8
2
control is No. To access
2
options as desired.
2
solenoid valve will turn on and not
level set point plus
2
set point is 1000ppm, CO
2
valve is
2
2
2
2