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Troubleshooting VARC Chiller Controls
2. Tap the wrench icon.
34 Chiller Summary
3. From the Chiller Control menu, select YES to enable
Maintenance mode.
35 Chiller Control Menu
4. To disable a stage, tap the menu to the right of the
stage number and select Disabled.
36 Disable Stage
5. Tap X to exit, then turn on the VARC.
8 Troubleshooting
The following tables describe the VARC alarm
characteristics and corrective actions.
WARNING: ELECTRICAL SHOCK HAZARD.
Failure to obey the following warnings could
result in death or serious injury:
• Exercise extreme care when working around
energized equipment.
• Maintenance and repair should be performed only by
qualified technicians.
8.1 Alarms
In the event of a fault, the system does not generate an
alarm immediately, but instead applies an alarm retry
logic scheme. The system shuts down and attempts
the number of retries that is set on the parameters table
before creating an alarm that needs to be reset manually.
The following table describes the alarm conditions and
corrective actions to be taken.
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