62-11785 7–8
00020 MAXIMUM COMPRESSOR ALARMS
• ACTIVATION: This option must be installed and alarm must be enabled by configuring the Compressor
Alarm Shutdown to YES. Alarms 00013 HIGH DISCHARGE PRESSURE, 00017 HIGH COMP DIS-
CHARGE TEMP, 00018 LOW REFRIGERANT PRESSURE, 00027 HIGH SUCTION PRESSURE, or
00028 CHECK REFRIGERATION SYSTEM individually occur 3 times within the last 2 hours.
• UNIT CONTROL: Refrigeration system shutdown and alarm with PSCON still energized.
• RESET CONDITION: Clear the alarm from inactive alarm list. This alarm and the alarm(s) that caused it
can not be reset by turning switch OFF and then ON again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active
alarm should clear itself (refer to reset condition above). Operate the unit through the appropriate modes to see
if any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Determine Which Alarm Activated This Alarm
a. Check active alarm list for Alarm 00013 HIGH DISCHARGE PRESSURE, 00017 HIGH COMP
DISCHARGE TEMP, 00018 LOW REFRIGERANT PRESSURE, 00027 HIGH SUCTION
PRESSURE, or 00028 CHECK REFRIGERATION SYSTEM. One or more of these alarms will be
present.
b. Follow the troubleshooting steps for the alarm(s) found, and correct the alarm condition. All alarm
conditions must be corrected.
2. Reset Alarm - Clear all inactive alarms. Refer to Section 5.2.2. All alarms must be cleared to start unit.
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