Chiller Maintenance Suggestions, How to maintain boiler
Chiller maintenance suggestions for how to maintain chillers for cooling equipment can for the most part, be done by the building staff. Some procedures will have to be undertaken by skilled tradesmen but it is left to the discretion of the building superintendent as to when they should be called in.
Absorption chillers:
Weekly work
Check for presence of non condensibles. Take necessary steps to eliminate non condensibles in system.
Monthly chiller work
Visually inspect fuel filter. Clean, repair or replace as needed to ensure proper operation.
Perform chemical testing of system water, if an open system. Treat as needed to ensure proper water chemistry.
Chiller Maintenance Procedures
Quarterly chiller work
Perform chemical testing of system water, if a closed system.
Treat as needed to ensure property water chemistry.
Check fuel pump for proper operation. Repair or replace as needed to ensure proper operation.
Inspect gearbox for excessive wear. Repair or replace as needed.
Semi-annual chiller work
Check steam system traps, pumps and controls. Clean or replace as necessary to ensure proper operation.
Check control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.
Check variable frequency drive for proper operation. Correct as needed.
Annual chiller work
Check control box for dirt, debris and loose terminations. Clean and tighten as needed.
Check motor contactor for pitting or other signs of damage. Repair or replace as needed.
Check drive alignment, wear, seating and operation. Repair and replace as needed.
Check for evidence of build-up or fouling on heat exchange surfaces. Clean as needed to ensure proper operation.
Check for proper fluid flow. Clean and adjust and repair as needed to restore proper flow.
Check inhibitor and internal fluid chemistry. Correct inhibitor and internal fluid chemistry if outside of established operating ranges.
Air Cooled Chillers:
Monthly chiller maintenance
Perform chemical testing of water. Treat as needed to ensure proper water chemistry for open systems.
Quarterly hvac maintenance facts
Perform chemical testing of water. Treat as needed to ensure proper water chemistry for closed systems.
Inspect gearbox for excessive wear. Repair or replace as necessary.
Semi-annual chiller maintenance
Check control system and devices for evidence of improper operation. repair, adjust or replace components to ensure proper operation.
Check fan belt tension. Check for belt wear and proper alignment. replace if necessary to ensure proper operation.
Check variable frequency drive for proper operation. Correct as needed.
Annual chiller maintenance
Check control box for dirt, debris and loose terminations. Clean and tighten as needed.
Check motor contactor for pitting or other signs of damage. Repair or replace as needed.
Check fan blades. Clean, repair or replace as needed to ensure proper operation.
Check refrigerant system pressures and temperatures. If outside of recommended levels, find cause, repair and adjust refrigerant to achieve optimal operating levels.
Check for fouling, corrosion or degradation. Clean or repair as needed.
Check drive alignment, wear, seating and operation. Repair and replace as needed.
Lubricate field serviceable bearings.
Check for evidence of build-up or fouling on heat exchange surfaces. Clean as needed to ensure proper operation.
Check for proper fluid flow. Clean, adjust and repair as needed to restore proper flow.
Inspect air-cooled condenser surfaces. repair or clean as needed.
Check low ambient head pressure control sequence for proper operation. Repair or replace components or modify software/algorithm to ensure proper operation.
Check compressor oil level and or pressure on refrigerant systems having oil level and or pressure measurement means. Repair, replace or adjust as needed to ensure proper control.
Water Cooled Chillers
Monthly
Perform chemical testing of system water for open system. Treat as needed to ensure proper water chemistry.
Quarterly
Perform chemical testing of system water for closed system.
Treat as needed to ensure proper water chemistry.
Inspect gearbox for excessive wear. repair or replace as needed.
Check control system and devices for evidence of improper operation. Repair, adjust or replace components to ensure proper operation.
Check control box for dirt, debris and loose terminations. Clean and tighten as needed.
Check motor contactor for pitting or other signs of damage. Repair or replace as needed..
Check refrigerant system pressures and temperatures. If outside of recommended levels, find cause, repair and adjust refrigerant to achieve optimal operating levels.
Check drive alignment, wear, seating and operation. repair and replace as needed.
Check for evidence of build-up or fouling on heat exchange surfaces. Clean as needed to ensure proper operation.
Check for proper fluid flow. Clean, adjus and repair as needed to restore proper flow.
Check compressor oil level and or pressure on refrigerant systems having oil level and or pressure measurement means. Repair, replace or adjust as needed to ensure proper control
Chiller maintenance end.
Building Maintenance Checklist
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