Data Aire dap4 touch, User Manual

Page: 124 / 137

120
Alarm Screen Description &
Classification
Possible Causes Corrective Actions
•
Unusual rate of
building humidity gain
•
Loose Connection
•
Out of calibration
•
Faulty Sensor
•
Check Connection
•
Calibrate sensor
•
Check Humidity sensor and
replace if needed
Low Humidity The return air
humidity is
lower than the
low humidity
alarm limit
*Warning
•
Humidity is to low
•
Humidity alarm set
point needs to be
adjusted
•
Humidifier not working
properly
•
Out of calibration
•
Faulty Humidity
sensor
•
Check humidity in the room
•
Check Low humidity alarm set
point (range 10%-65%)
•
Check Humidifier
•
Calibrate sensor
•
Check Sensor replace if needed
Humidifier
failure
Humidifier
malfunction
*Warning
•
Low water pressure
•
Overcurrent detected
or no current
•
Fill system failure
•
End of cylinder life
•
Incorrect settings of
digital input on the
controller
•
Check water pressure
•
Check current, and add minerals
to the water if necessary
•
Check water supply and fill
valve
•
Replace tank if necessary
•
Go to Menu L- Configure I/O and
change the Humidifier Fault
Switch action setting
Discharge Air
Low Temp
Discharge air
temperature is
below alarm
set point
*Warning
•
Supply air temperature
is below set point
•
Dehumidification set to
low or Fan Speed
Assist setting may be
running fan too slow.
•
Adjust the Discharge Air alarm
limit set points (range 45º-60º).
•
Increase Dehum setpoint, Lower
Dehum Fan Speed Assist
setting.
•
Increase heat load