Data Aire dap4 User Manual page 109

Alarm Screen Description &
Classification
alarm, just a standby status
notification and (not running)
shown only on
unit status line)
*Notice
Standby Pump Pump Auto-
Changeover
Control
*Warning
Humidifier Humidifier
Cylinder cylinder alarm
is active-
optional alarm
*Warning
C1 or C2 Compressor is
Lockout Locked out
**Urgent
Freeze Stat Freeze stat
safety sensor
(optional)
*** Critical
External Temp. The optional
Module Sensor Rack sensor
T** High has a High
Temperature Temp Alarm
Possible Causes
•
Optional Alarm switch
wired to cabinet door
switch (standard on In
Row units)
•
Incorrect optional
alarm inputs
configuration
•
Pump is changing
over
•
Loss of power to one
of the pumps
•
Pump has failed
•
Active alarm on
humidifier cylinder
from the humidifier
controller
•
Loose wiring or
damage wiring from
humidifier controller to
dap4
•
Incorrect settings on
the controller
•
Compressor tripped its
High Pressure switch
more than allowed by
alarm setting.
•
Optional analog input
#1 temperature is too
low
•
Temperature is above
rack sensor high alarm
set point
109
Corrective Actions
•
Close the cabinet door
•
Check controller optional alarm
inputs configuration
•
Check the Pump Auto-Change
over contacts
•
Check power to pumps
•
Check pump operation
•
Using wiring diagram to check
wiring of humidifier cylinder and
humidifier controller
•
Go to Menu L- Configure I/O and
change the Humidifier Fault
Switch action setting
•
Requires alarm
acknowledgement to reset.
Check number of compressor
high pressure trips allowed
within an hour (range none or 2
to 5 /Hr.)
•
Check freeze stat temp and
setpoint. Alarm will clear when
temp rises 2º above the alarm
set point.
•
Check temperature of sensor
and set point for alarm