Data Aire dap4 User Manual

126
Alarm Screen
Description &
Classification
Possible Causes
Corrective Actions
External Temp.
Module Sensor
T** Low
Temperature
The optional
Rack sensor
has a High
Temp Alarm
*Warning
• Temperature is below
rack sensor low alarm
set point
• Faulty sensor
• Check temperature of sensor
and set point for alarm
• Check sensor and replace
sensor
External Temp.
Module Sensor
Failure
The optional
Rack sensor in
Fault Alarm
*Warning
• Faulty Rack Sensor
• Check the sensor indicated and
replace sensor if necessary.
Suction
Pressure/Temp
High Suction
Pressure of
Temperature
• Compressor running
at minimal speed.
• Heavy Load on
Evaporator.
• Too much air flow
• EEV failed Open
• Faulty Sensor
• Check input signal to
compressor speed control and
the compressors actual speed.
• Check temperature set point and
compressors mode of operation
(Discharge or Return control)
• Check fan speed control and set
point
• Check EEV
EVD Failure
Electronic
Valve Driver
failure
• Damaged EVD
• EVD Sensors Failure
• Refrigerant Charge
problem
• Replace EVD
• Check or replace sensors
• Check refrigerant charge
Lost Phase
Phase failure
alarm when
optional power
meter installed
***Critical
• Lost power on a phase
of the high voltage
supply. Unit will shut
down.
• Check high voltage connections
to unit. Check power meter or
phase loss detector
High CO2
(gPOD units
only)
CO2 level is
higher than
alarm set point
**Urgent
• CO2 level is too high
and may be
dangerous. Evacuate
anyone in the affected
area.
• Check CO2 level in the air and
check the CO2 valve to make
sure it turns off completely.
• Check CO2 setpoint

Data Aire dap4 Specifications

General

Brand	Data Aire
Model	dap4
Category	Control Systems
Language	English