Description &
Classification
•
BMS set to put unit
into standby mode
•
Alarms enabled in standby mode
in Alarm & Limits men
•
BMS commanded unit to be in
standby.
Pump Auto-
Changeover
Control
*Warning
•
Pump is changing
over
•
Loss of power to one
of the pumps
•
Pump has failed
•
Check the Pump Auto-Change
over contacts
•
Check power to pumps
•
Check pump operation
Humidifier
cylinder alarm
is active-
optional alarm
*Warning
•
Active alarm on
humidifier cylinder
from the humidifier
controller
•
Loose wiring or
damage wiring from
humidifier controller to
dap4
•
Incorrect settings of
digital input on the
controller
•
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
Compressor is
Locked out
**Urgent
•
Compressor tripped its
High Pressure switch
more times than
allowed by alarm
setting.
•
Requires alarm
acknowledgement to reset.
Notice, the HP switch must also
be mechanically reset.
Freeze stat
safety sensor
(optional)
*** Critical
•
Optional analog input
#1 temperature is too
low
•
Check freeze stat temp and
setpoint. Alarm will clear when
temp rises 2º above the alarm
set point.
External Temp.
Module Sensor
T** High
Temperature
The optional
Rack sensor
has a High
Temp Alarm
*Warning
•
Temperature is above
rack sensor high alarm
set point
•
Faulty sensor
•
Check temperature of sensor
and set point for alarm
•
Check sensor and replace
sensor
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