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6
5. Operation
5.4 Alarms and Warnings
Notes:
• When ALARM or WARNING indicators flash, the audible alarm will activate to alert the end user until the problem is resolved.
• When WARNING indicators flash and the 2-digit temperature setting display shows “dF” or “E8”, the display will continue to show the correct status of
mode, fan speed of evaporator and ambient temperature.
• When ALARM indicators flash, the 2-digit temperature setting display shows “E1/E2/E3/E4/E7”.
Alarm Condition Display User Action
Defrost Protection dF, WARNING indicator flashes Activate anti-icing process with the evaporator fan operating on HIGH
while the compressor and condenser fans stop running in Energy Saving
Mode. Defrost protection deactivates when the temperature of the
evaporator coil is continuously 2°F above 32°F for one minute.
Ambient Temperature Fault E1, ALARM indicator flashes Press the POWER button to return the unit to normal operation.
Coil Temperature Fault E2, ALARM indicator flashes Press the POWER button to return the unit to normal operation.
Low Pressure Sensor Fault E3, ALARM indicator flashes Unplug the unit from the mains power source, then plug it back in.
Note: Contact Tripp Lite Customer Service if the ALARM indicator and audible
alarm return after performing the user action.
Water Full Protection E4, ALARM indicator flashes Reset the alarm by draining the water. The unit cannot return normal
operation until after pressing the POWER button.
High Pressure Sensor Fault E7, ALARM indicator flashes Unplug the unit from the mains power source, then plug it back in.
Sentry Timer Error /
Filter Inspection
E8, WARNING indicator flashes Unit has run for a total of 730 hours. Hold the SPEED button for 3
seconds to turn off the alert and reset the internal timer to zero. If filters
are dirty, clean or replace filters.
Note: Contact Tripp Lite Customer Service if the ALARM indicator and audible
alarm return after performing the user action.
5.3 Initial Operation
To Power the Unit On
1
Make sure the SRCOOL33K is properly connected to the AC input source according to the Installation Manual.
2
Once powered on, the SRCOOL33K will operate under the following factory default settings:
Temperature Units: °F
Temperature Set Point: 77°F
Fan Speed: AUTO
Mode: NORMAL COOLING
To change settings, use the control buttons located on the LCD panel. For more information, see 5.2 LCD Control Panel.
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