ICE AIR ccHPWH Series, Installation And Maintenance Manual

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VIII. Trial running and maintenance
1. Trial running
Note before trial running
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The water heater should be bypassed while the pipes are being cleaned. Only after the pipes have
been verified clean should the bypass line be closed, and the isolation valves to the water heaters
opened. The static water pressure should be a minimum of 15-psig and the water flow should be
balanced to match the rated flow of the unit.
•
Power the unit 8-
hours before the unit’s initial start-up to preheat the compressor. Starting the unit too
soon after initial power may cause damage to the compressor.
•
Complete the software set-up prior to operating the system.
•
Engage a factory trained technician to provide start-up services.
•
Confirm items below before trial running, then fill the blanks with check mark “√”.
Correct unit installation
□
Check voltage is within specifications
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Correct piping & wiring
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Air inlet and outlet free of obstructions
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Drain valve functioning properly
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Pressure relief valve functioning normally
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Pipe insulation complete
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Level foundation
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Trial running
•
Only after all wiring and piping work has been completed and checked can the power be connected,
and the water filled .
•
Vent the air in the system prior to start-up.
•
Check the controller to ensure it is operational and error free. If there is a fault code, trouble shoot the
cause of the fault, confirm that the unit can operate normally, and restart the unit .
•
Operate the unit for at least 30-minutes to ensure proper operation.
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Avoid frequent cycling. 10 minutes is the proper time to restart the unit after it stops.
•
Check for abnormal sound or vibration during operation; diagnosis any items that are out of spec.
•
Keep power applied to the unit during normal operation.
If it is necessary to cut off the power supply because the unit has stopped running for a long
time, remember to electrify the unit 8 hours before starting up again and preheat the compressor.