Data Aire dap4 - Alarms Overview; Pump, Lockout, and Freeze Stat Alarms

121
Alarm Screen
Description &
Classification
Possible Causes
Corrective Actions
• Not enough heat load
• Faulty Sensor
• Loose Connection
• Out of calibration
• Reheat Coils are not
working correctly
during
dehumidification mode
• Incorrect settings of
digital input on the
controller
• Check discharge air temp sensor
against the Temperature Sensor
Chart to verify resistance of
sensor
• Check connection, cable and
correct connection points
• Calibrate sensor
• Check Reheat coil operations
• Go To Factory Settings in Menu
J scroll down to Reheat Settings
and enter the correct information
Return Air Low
Temp
Return Air
Temperature is
below alarm
set point limit
*Warning
• Return air temperature
is too low
• Not enough heat load
• Faulty Sensor
• Loose Connection
• Out of calibration
• Increase Temperature set point
or adjust the low Return Air
alarm set point lower (range 55º-
75º)
• Increase heat load
• Use Temperature Sensor Chart
to verify resistance of the sensor
• Check Connection, cable and
correct connection points
• Calibrate sensor
Return Air
High Temp
Return Air
Temperature is
above the
alarm set point
*Warning
• Return air temperature
is above set point
• Heavy load
• Electrical Problem
• Loose Connection
• Out of calibration
• Check return air temperature.
Adjust Return Air Hi alarm set
point (range 70º-90º)
• Reduce heat load
• Check voltage and fuses to
compressor
• Check connection and cable
• Calibrate sensor