General • Maintenance

AquaEdge® Water-Cooled Centrifugal Chiller Unit 19DV | Scheduled Maintenance

This annual procedure focuses on different kinds of your equipment's filters and in-track baffles. This will help ensure that your unit performs at it's peak for a long period of time.

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10/24/2021

AquaEdge® Water-Cooled Centrifugal Chiller Unit 19DV | Scheduled Maintenance

This annual procedure focuses on different kinds of your equipment's filters and in-track baffles. This will help ensure that your unit performs at it's peak for a long period of time.

Establish a regular maintenance schedule based on your actual chiller requirements such as chiller load, run hours, and water quality. The time intervals listed in this section are offered as guides to service only.

Service Ontime

The HMI will display resettable “After Service Hrs”, “Total Pumpout Numbers”, and “Total Pumpout Time” values on the Main Menu Run Times screen.
These values should be reset to zero by the service person or the operator each time major service work is completed so that the time between service events can be viewed and tracked. Previous values and associated dates should be logged for future reference prior to resetting.

Inspect the Control Panel

Maintenance consists of general cleaning and tightening of connections. Vacuum the control cabinets to eliminate dust build-up.
If the chiller control malfunctions, refer to the Troubleshooting Guide section on page 51 for control checks and adjustments.

WARNING: Ensure power to the starter is isolated when cleaning and tightening connections inside the starter enclosure. Failure to disconnect power could result in electrocution.

Inspect the Purge

Enter 19DV Quick Test menu to test purge function. Functions available for Quick Test verification are Purge Condenser CV, Purge Comp SV, Pumpout SV, Drainage SV, Regen SV, Discharge SV, Idle Drain SV, Vacuum Pump, Purge Compressor, and Purge Heater.
Turn on Purge Compressor and verify that it runs. Open/close all valves using the Quick Test menu. Clean the condenser coil as required and replace the strainer as needed.

Source: Carrier (www.shareddocs.com)

Establish a regular maintenance schedule based on your actual chiller requirements such as chiller load, run hours, and water quality. The time intervals listed in this section are offered as guides to service only.

Service Ontime

The HMI will display resettable “After Service Hrs”, “Total Pumpout Numbers”, and “Total Pumpout Time” values on the Main Menu Run Times screen.

These values should be reset to zero by the service person or the operator each time major service work is completed so that the time between service events can be viewed and tracked. Previous values and associated dates should be logged for future reference prior to resetting.

Inspect the Control Panel

Maintenance consists of general cleaning and tightening of connections. Vacuum the control cabinets to eliminate dust build-up.

If the chiller control malfunctions, refer to the Troubleshooting Guide section on page 51 for control checks and adjustments.

WARNING: Ensure power to the starter is isolated when cleaning and tightening connections inside the starter enclosure. Failure to disconnect power could result in electrocution.

Inspect the Purge

Enter 19DV Quick Test menu to test purge function. Functions available for Quick Test verification are Purge Condenser CV, Purge Comp SV, Pumpout SV, Drainage SV, Regen SV, Discharge SV, Idle Drain SV, Vacuum Pump, Purge Compressor, and Purge Heater.

Turn on Purge Compressor and verify that it runs. Open/close all valves using the Quick Test menu. Clean the condenser coil as required and replace the strainer as needed.