Air cooled compression chiller daily, weekly, monthly preventive maintenance checklists
Daily Maintenance Checklist
- Check for any illuminated warning lights.
- Review any error codes displayed.
- Document any faults for further analysis.
- Reset alarms if resolved and monitor.
- Use calibrated gauges to assess pressures.
- Compare readings against manufacturer specifications.
- Record any anomalies for troubleshooting.
- Ensure no refrigerant leaks are present.
- Listen for abnormal sounds or vibrations.
- Check fan blade rotation direction.
- Inspect for any physical obstructions.
- Ensure proper power supply to the fans.
- Remove any visible debris or blockages.
- Check for signs of airflow restriction.
- Clean the intake and discharge areas as necessary.
- Ensure adequate airflow for optimal performance.
- Use infrared thermometer or contact probe.
- Compare temperatures to expected values.
- Look for significant temperature differentials.
- Document readings for future reference.
- Inspect the drain line for blockages.
- Check for proper flow of condensate.
- Clean any debris from drain pan.
- Ensure drain is not leaking.
- Check for any illuminated warning lights.
- Review any error codes displayed.
- Document any faults for further analysis.
- Reset alarms if resolved and monitor.
- Use calibrated gauges to assess pressures.
- Compare readings against manufacturer specifications.
- Record any anomalies for troubleshooting.
- Ensure no refrigerant leaks are present.
- Listen for abnormal sounds or vibrations.
- Check fan blade rotation direction.
- Inspect for any physical obstructions.
- Ensure proper power supply to the fans.
- Remove any visible debris or blockages.
- Check for signs of airflow restriction.
- Clean the intake and discharge areas as necessary.
- Ensure adequate airflow for optimal performance.
- Use infrared thermometer or contact probe.
- Compare temperatures to expected values.
- Look for significant temperature differentials.
- Document readings for future reference.
- Inspect the drain line for blockages.
- Check for proper flow of condensate.
- Clean any debris from drain pan.
- Ensure drain is not leaking.
Weekly Maintenance Checklist
- Shut down the chiller and ensure it is disconnected from power.
- Use a soft brush or vacuum to remove dirt and debris from coils.
- If necessary, apply a coil cleaner and rinse thoroughly.
- Inspect for any bent fins and straighten them carefully.
- Power down the chiller and ensure safety protocols are followed.
- Use a screwdriver to check all accessible electrical connections.
- Tighten any loose connections to prevent arcing.
- Inspect wiring for fraying or damage while checking connections.
- Listen for abnormal sounds like grinding or rattling during operation.
- Check for excessive vibration by placing a hand on the compressor.
- Assess surrounding equipment for any signs of disturbance.
- Document any irregularities for follow-up with maintenance personnel.
- Examine insulation for cracks, tears, or signs of moisture.
- Replace damaged insulation to maintain energy efficiency.
- Ensure all joints are properly sealed to prevent refrigerant loss.
- Check for any corrosion on the refrigerant lines.
- Test water quality using appropriate testing kits for pH and chemicals.
- Add necessary chemicals to maintain balanced water chemistry.
- Inspect water filters and replace if clogged or dirty.
- Document water treatment levels and any adjustments made.
- Verify that all safety interlocks and switches are functioning.
- Simulate alarm conditions to test response of control systems.
- Check the operation of pressure relief valves.
- Record the results of the tests for future reference.
- Shut down the chiller and ensure it is disconnected from power.
- Use a soft brush or vacuum to remove dirt and debris from coils.
- If necessary, apply a coil cleaner and rinse thoroughly.
- Inspect for any bent fins and straighten them carefully.
- Power down the chiller and ensure safety protocols are followed.
- Use a screwdriver to check all accessible electrical connections.
- Tighten any loose connections to prevent arcing.
- Inspect wiring for fraying or damage while checking connections.
- Listen for abnormal sounds like grinding or rattling during operation.
- Check for excessive vibration by placing a hand on the compressor.
- Assess surrounding equipment for any signs of disturbance.
- Document any irregularities for follow-up with maintenance personnel.
- Examine insulation for cracks, tears, or signs of moisture.
- Replace damaged insulation to maintain energy efficiency.
- Ensure all joints are properly sealed to prevent refrigerant loss.
- Check for any corrosion on the refrigerant lines.
- Test water quality using appropriate testing kits for pH and chemicals.
- Add necessary chemicals to maintain balanced water chemistry.
- Inspect water filters and replace if clogged or dirty.
- Document water treatment levels and any adjustments made.
- Verify that all safety interlocks and switches are functioning.
- Simulate alarm conditions to test response of control systems.
- Check the operation of pressure relief valves.
- Record the results of the tests for future reference.
Monthly Maintenance Checklist
- Check for signs of wear, corrosion, or damage.
- Inspect piping for proper insulation and support.
- Ensure fittings are secure and free of leaks.
- Look for any unusual wear patterns or discoloration.
- Remove the filter from its housing carefully.
- Clean the filter using compressed air or wash with water if washable.
- Inspect for damage; replace if necessary.
- Reinstall the filter securely in the correct orientation.
- Identify all lubrication points on the chiller.
- Use the recommended lubricant type and amount.
- Ensure to wipe away excess lubricant to prevent accumulation.
- Check for proper operation after lubrication is completed.
- Collect data on temperatures, pressures, and flow rates.
- Note any deviations from normal operating ranges.
- Log data in maintenance records for future reference.
- Analyze trends for potential issues or required adjustments.
- Check for refrigerant oil residues around joints.
- Listen for hissing sounds indicating leaks.
- Use a leak detection solution if necessary.
- Ensure connections are tight and seals are intact.
- Measure inlet and outlet temperatures.
- Calculate the cooling capacity against specifications.
- Assess performance against historical data.
- Document findings and identify any inefficiencies.
- Check for dirt, debris, or obstructions on coils.
- Use a soft brush or vacuum to clean surfaces.
- Ensure air can flow freely through the coils.
- Inspect for bent fins and straighten if needed.
- Power down the system before inspection.
- Use a torque wrench to tighten connections to spec.
- Inspect for signs of arcing or burning.
- Document any issues and repairs made.
- Use gauges to measure refrigerant pressure.
- Inspect all joints and connections for leaks.
- Look for frosty areas indicating a leak.
- Document levels and any necessary adjustments.
- Check safety cut-off switches and alarms.
- Simulate failure conditions to test responses.
- Inspect control panel indicators for proper operation.
- Log results for compliance and future reference.
- Listen for abnormal sounds during operation.
- Use a vibration analyzer to assess performance.
- Check for loose mounts or misalignment.
- Document any anomalies for further analysis.
- Inspect insulation for tears or wear.
- Replace or repair any damaged insulation.
- Ensure fittings are properly insulated.
- Document the condition for future reference.
- Listen for unusual noises during operation.
- Check motor temperatures to prevent overheating.
- Lubricate fan bearings as per manufacturer guidelines.
- Document operational issues and corrective actions.
- Check for blockages or debris in traps.
- Clean drains to ensure free-flowing water.
- Inspect for signs of leaks or corrosion.
- Document the condition of drainage systems.
- Ensure all recent maintenance activities are logged.
- Check for completeness and accuracy of records.
- Update any compliance documentation as needed.
- Store logs securely for future audits.
- Power down the control panel before cleaning.
- Use a soft, dry cloth to wipe surfaces.
- Avoid using liquid cleaners directly on the panel.
- Inspect indicator lights and displays for clarity.
- Inspect isolators for cracks or deterioration.
- Check mounts for looseness or misalignment.
- Replace worn isolators as needed.
- Document findings and corrective actions.
- Cross-check readings against manufacturer specifications.
- Adjust settings if necessary to stay within ranges.
- Document any deviations and actions taken.
- Review trends over time for any issues.
- Check current inventory against a maintenance schedule.
- Identify critical parts that need replenishing.
- Order necessary parts to maintain stock.
- Document inventory levels and orders placed.
- Simulate emergency conditions to test systems.
- Verify that all alarms and shut down mechanisms activate.
- Document results of the tests for compliance.
- Address any failures immediately.
- Check for debris, tools, or equipment near the chiller.
- Ensure pathways are clear for emergency access.
- Look for signs of leaks or spills in the area.
- Document any hazards and corrective measures taken.
Use in Manifestly