Data Aire Mini dap4 - Page 58

58 • Mini dap4 User Manual
iii) If the High CO
2
level alarm is enabled (Yes) and the CO
2
level rises above the
high CO
2
alarm set point, a “High CO
2
level” message is displayed and audio alarm
will sound (if not programmed for Silence). This alarm is a warning only and will not
prevent any of the unit functions from operating. The alarm will remain until the alarm
condition is corrected. The alarm output contacts will close if this alarm is selected “Yes”
in the alarm output function list in menu K.
iv) If the Low CO
2
level alarm is enabled (Yes) and the CO
2
level drops below the
low CO
2
alarm set point, a “Low CO
2
level” message is displayed and audio alarm
will sound (if not programmed for Silence). The alarm is a warning only and will not
prevent any of the unit functions from operating. The alarm will remain until the alarm
condition is corrected. The alarm output contacts will close if this alarm is selected “Yes”
in the alarm output function list in menu K.
v) CO
2
control during Day/Night schedule: If night CO
2
control is set to No (default
setting), CO
2
control will be off at night or when light sensor senses no light and back to
normal control mode during day schedule or light is on.
b) Night time mode
i) The night mode can be activated by either; an optional light sensor input or by a
programmed time schedule.
ii) While in the night mode, the temperature and humidity set points will be offset by
the amount of their offset band settings. See section 3c for details.
iii) A “Night Sch” status message will appear and the offset Temperature (“TSP”) and
offset Dehumidify (“HSP”) set points are displayed instead of the normal set points.
iv) Set point offsets work as follows:
Normal daytime mode
• Cooling and Heating Temp set point = Temp set point
• Humidify and Dehumidify set point = Hum set point
Temp and Hum set points are adjusted in menu B “Set point”.
Nighttime mode
• Cooling Temp set point = Temp set point + Cooling offset
• Heating Temp set point = Temp set point - Heating offset
• Humidify set point = Hum set point - Humidify offset
• Dehumidify set point = Hum set point + Dehumidify offset
Night time offsets are adjusted in menu C “Clock/Scheduler”.
v) CO
2
control can be disabled during the nighttime by setting “Night CO
2
cntrl” to
“No” (default setting) in Menu J “Factory settings”. CO
2
control will resume during
daytime mode.