AHU daily, weekly, monthly, quarterly, semi annually. annual preventive maintenance checklists
Daily Preventive Maintenance Checklist
- Use calibrated instruments to measure temperature and humidity.
- Record values in the maintenance log for future reference.
- Compare readings against manufacturer specifications.
- Identify and report any deviations from normal operating ranges.
- Check pressure gauges or indicators for airflow resistance.
- Remove air filters and inspect for dirt and blockages.
- Clean reusable filters as per manufacturer guidelines.
- Replace filters that are beyond their useful life.
- Check control panel indicators for normal operation lights.
- Test manual override functions to ensure responsiveness.
- Review system settings against operational parameters.
- Document any anomalies and alert maintenance personnel.
- Stand close to the unit and listen for irregular sounds.
- Identify vibrations that may indicate mechanical issues.
- Record any unusual findings in the maintenance log.
- Report significant concerns to maintenance staff immediately.
- Inspect all joints, seals, and connections for moisture.
- Look for signs of oil or refrigerant leakage.
- Use a flashlight to spot hard-to-see areas.
- Document findings and arrange for repairs if necessary.
- Inspect drains for clogs or obstructions.
- Flush drains with water to ensure proper flow.
- Check for water pooling around the unit.
- Report any drainage issues for immediate remediation.
- Check control panel indicators for normal operation lights.
- Test manual override functions to ensure responsiveness.
- Review system settings against operational parameters.
- Document any anomalies and alert maintenance personnel.
- Stand close to the unit and listen for irregular sounds.
- Identify vibrations that may indicate mechanical issues.
- Record any unusual findings in the maintenance log.
- Report significant concerns to maintenance staff immediately.
- Inspect all joints, seals, and connections for moisture.
- Look for signs of oil or refrigerant leakage.
- Use a flashlight to spot hard-to-see areas.
- Document findings and arrange for repairs if necessary.
- Inspect drains for clogs or obstructions.
- Flush drains with water to ensure proper flow.
- Check for water pooling around the unit.
- Report any drainage issues for immediate remediation.
- Use calibrated instruments to measure temperature and humidity.
- Record values in the maintenance log for future reference.
- Compare readings against manufacturer specifications.
- Identify and report any deviations from normal operating ranges.
- Check pressure gauges or indicators for airflow resistance.
- Remove air filters and inspect for dirt and blockages.
- Clean reusable filters as per manufacturer guidelines.
- Replace filters that are beyond their useful life.
Weekly Preventive Maintenance Checklist
- Visual check for cracks or fraying on belts.
- Ensure pulleys are aligned and securely fastened.
- Check tension using a tension gauge if available.
- Replace any worn or damaged belts immediately.
- Inspect all visible wiring for signs of wear.
- Use a screwdriver to tighten loose connections.
- Check for corrosion on terminals and clean if needed.
- Ensure all connections are secure to prevent arcing.
- Use a soft cloth and appropriate cleaner for surfaces.
- Remove any debris or obstructions around the unit.
- Ensure drain paths are clear of any blockages.
- Check for signs of rust or deterioration.
- Use calibration tools specific to each sensor.
- Compare readings with manufacturer specifications.
- Adjust settings to ensure accurate performance.
- Document any changes made during calibration.
- Check pressure relief valves for proper operation.
- Test safety interlocks and emergency shut-off switches.
- Inspect guards and shields for integrity.
- Ensure all alarms are functional and audible.
- Check for visible signs of wear or fraying.
- Ensure pulleys are aligned properly.
- Test tension and adjust if necessary.
- Listen for any unusual sounds while operating.
- Inspect all electrical connections for corrosion.
- Use a torque wrench to ensure proper tightness.
- Look for loose wires or damaged insulation.
- Record any findings for future reference.
- Remove dust and debris from the unit's surface.
- Use a vacuum or soft brush for hard-to-reach areas.
- Ensure that the area is free from obstructions.
- Dispose of waste materials properly.
- Check sensor readings against known standards.
- Adjust calibration settings if discrepancies are found.
- Test control responses to ensure accuracy.
- Document calibration results for compliance.
- Test all safety alarms and indicators.
- Inspect emergency shut-off switches for functionality.
- Ensure that safety guards are in place.
- Record any malfunctions for immediate action.
Monthly Preventive Maintenance Checklist
- Turn off power to the unit.
- Remove any debris from the coils.
- Use a soft brush or vacuum to clean coils.
- Apply coil cleaner if necessary, following instructions.
- Rinse coils with water and allow to dry.
- Turn off and lock out power to the fan.
- Remove any accumulated dust and debris from blades.
- Inspect motor components for wear and damage.
- Lubricate motor bearings if applicable.
- Ensure blades are securely fastened.
- Inspect insulation for tears, moisture, or mold.
- Check for areas with loose or missing insulation.
- Replace damaged insulation to maintain efficiency.
- Seal any gaps with appropriate insulation tape.
- Ensure insulation is securely fastened.
- Check for standing water in the drain pan.
- Clean any debris blocking the drain line.
- Verify that the drain line is clear and flowing.
- Inspect for rust or corrosion in the drain pan.
- Ensure the drain pan is properly sloped.
- Gather all relevant maintenance records.
- Document any findings or corrective actions taken.
- Update maintenance schedules as needed.
- Ensure logs are easily accessible for future reference.
- Verify compliance with regulatory requirements.
- Turn off power to the unit.
- Remove any debris from the coils.
- Use a soft brush or vacuum to clean coils.
- Apply coil cleaner if necessary, following instructions.
- Rinse coils with water and allow to dry.
- Turn off and lock out power to the fan.
- Remove any accumulated dust and debris from blades.
- Inspect motor components for wear and damage.
- Lubricate motor bearings if applicable.
- Ensure blades are securely fastened.
- Inspect insulation for tears, moisture, or mold.
- Check for areas with loose or missing insulation.
- Replace damaged insulation to maintain efficiency.
- Seal any gaps with appropriate insulation tape.
- Ensure insulation is securely fastened.
- Check for standing water in the drain pan.
- Clean any debris blocking the drain line.
- Verify that the drain line is clear and flowing.
- Inspect for rust or corrosion in the drain pan.
- Ensure the drain pan is properly sloped.
- Gather all relevant maintenance records.
- Document any findings or corrective actions taken.
- Update maintenance schedules as needed.
- Ensure logs are easily accessible for future reference.
- Verify compliance with regulatory requirements.
Quarterly Preventive Maintenance Checklist
- Turn off the AHU and ensure it is safely locked out.
- Remove the access panel to the filter compartment.
- Take out the old filters and inspect for damage.
- If reusable, clean filters according to manufacturer instructions.
- Install new filters or reinsert cleaned filters securely.
- Replace access panel and restore power to the AHU.
- Visually inspect all dampers for signs of damage or corrosion.
- Check actuator operation by manually adjusting dampers.
- Lubricate moving parts of actuators if necessary.
- Ensure dampers open and close fully without obstruction.
- Calibrate actuators for accurate position feedback.
- Inspect the humidifier for scale buildup or damage.
- Drain any standing water from the humidifier tank.
- Clean components with appropriate cleaning solutions.
- Test operation by running the humidifier and checking output.
- Replace any worn or damaged parts as needed.
- Perform a visual inspection of the AHU for rust or corrosion.
- Check for any signs of leaks or gaps in the housing.
- Ensure all bolts and fasteners are tight and secure.
- Look for any structural damage that may affect performance.
- Document any issues for repair or follow-up.
- Gather energy consumption data from the last quarter.
- Compare current consumption to previous periods.
- Identify any anomalies or trends in energy usage.
- Assess operational efficiency against manufacturer specifications.
- Make recommendations for improving energy efficiency.
- Turn off the AHU and ensure it is safely locked out.
- Remove the access panel to the filter compartment.
- Take out the old filters and inspect for damage.
- If reusable, clean filters according to manufacturer instructions.
- Install new filters or reinsert cleaned filters securely.
- Replace access panel and restore power to the AHU.
- Visually inspect all dampers for signs of damage or corrosion.
- Check actuator operation by manually adjusting dampers.
- Lubricate moving parts of actuators if necessary.
- Ensure dampers open and close fully without obstruction.
- Calibrate actuators for accurate position feedback.
- Inspect the humidifier for scale buildup or damage.
- Drain any standing water from the humidifier tank.
- Clean components with appropriate cleaning solutions.
- Test operation by running the humidifier and checking output.
- Replace any worn or damaged parts as needed.
- Perform a visual inspection of the AHU for rust or corrosion.
- Check for any signs of leaks or gaps in the housing.
- Ensure all bolts and fasteners are tight and secure.
- Look for any structural damage that may affect performance.
- Document any issues for repair or follow-up.
- Gather energy consumption data from the last quarter.
- Compare current consumption to previous periods.
- Identify any anomalies or trends in energy usage.
- Assess operational efficiency against manufacturer specifications.
- Make recommendations for improving energy efficiency.
Semi-Annual Preventive Maintenance Checklist
- Examine the AHU casing for any signs of damage or wear.
- Check for loose or missing fasteners on all components.
- Inspect insulation for any degradation or moisture accumulation.
- Look for signs of corrosion or rust on metal parts.
- Remove any debris or dirt from the heat exchanger.
- Use appropriate cleaning solutions to clean the surfaces.
- Check for signs of fouling or scaling on the heat exchanger.
- Ensure all connections are secure after cleaning.
- Measure refrigerant levels with a gauge.
- Inspect all refrigerant lines for visible signs of leaks.
- Use leak detection equipment if necessary.
- Document any necessary adjustments or repairs.
- Review control system settings and configurations.
- Test sensors and controls for accuracy.
- Adjust calibration settings as per manufacturer guidelines.
- Document any changes made during evaluation.
- Test the emergency shutoff switch for proper operation.
- Verify that all safety alarms are functional.
- Inspect the circuit for any signs of wear.
- Check the response time of the shutoff systems.
- Examine the AHU casing for any signs of damage or wear.
- Check for loose or missing fasteners on all components.
- Inspect insulation for any degradation or moisture accumulation.
- Look for signs of corrosion or rust on metal parts.
- Remove any debris or dirt from the heat exchanger.
- Use appropriate cleaning solutions to clean the surfaces.
- Check for signs of fouling or scaling on the heat exchanger.
- Ensure all connections are secure after cleaning.
- Measure refrigerant levels with a gauge.
- Inspect all refrigerant lines for visible signs of leaks.
- Use leak detection equipment if necessary.
- Document any necessary adjustments or repairs.
- Review control system settings and configurations.
- Test sensors and controls for accuracy.
- Adjust calibration settings as per manufacturer guidelines.
- Document any changes made during evaluation.
- Test the emergency shutoff switch for proper operation.
- Verify that all safety alarms are functional.
- Inspect the circuit for any signs of wear.
- Check the response time of the shutoff systems.
- Look for visible damage or corrosion in ducts.
- Check for any signs of mold or dust buildup.
- Seal any visible leaks with appropriate materials.
- Ensure ducts are securely connected to all fittings.
- Remove filters and inspect for dirt and damage.
- Clean reusable filters according to manufacturer instructions.
- Replace filters that are worn or excessively dirty.
- Document filter changes in maintenance logs.
- Refer to the manufacturer’s manual for lubrication points.
- Use manufacturer-recommended lubricants for all parts.
- Ensure excess lubricant is wiped away to prevent buildup.
- Check for any unusual noise after lubrication.
- Examine all electrical connections for signs of wear.
- Use a torque wrench to tighten connections as needed.
- Check for frayed or damaged wiring.
- Document any repairs or adjustments made.
- Manually operate dampers to check for smooth movement.
- Inspect actuators for any signs of malfunction.
- Ensure dampers open and close completely.
- Document any issues for follow-up.
- Inspect drain lines for blockages or buildup.
- Flush the drains with water to ensure flow.
- Clear any visible obstructions in the drain pan.
- Document any maintenance performed on the drains.
- Check insulation for tears, moisture, or mold.
- Replace any damaged or missing insulation.
- Ensure insulation is securely attached to all surfaces.
- Document the condition of insulation in maintenance logs.
- Check calibration of all gauges and meters.
- Replace any faulty gauges as necessary.
- Record readings for future reference.
- Ensure accessibility for easy monitoring.
- Measure airflow using an anemometer.
- Check for unusual vibrations or sounds during operation.
- Adjust fan speed settings if necessary.
- Document airflow performance results.
- Ensure all maintenance performed is logged accurately.
- Update service records with any new findings.
- Review past maintenance for patterns or recurring issues.
- Maintain a digital backup of all records.
- Listen for unusual sounds while the system is running.
- Check for vibrations that could indicate misalignment.
- Investigate any irregularities further if detected.
- Document findings and plan for necessary actions.
- Test the thermostat settings for accuracy.
- Ensure communication between the thermostat and AHU is intact.
- Replace batteries in wireless devices if applicable.
- Document any adjustments made to settings.
- Remove grilles and clean surfaces with a damp cloth.
- Inspect for any blockages in the grilles.
- Reattach grilles securely after cleaning.
- Document the condition of grilles in maintenance records.
- Clear any items or debris within a 3-foot radius.
- Check for any vegetation or growth affecting airflow.
- Ensure that air intakes and exhausts are unobstructed.
- Document any issues with obstructions.
- Consult the latest manufacturer's guidelines.
- Adjust maintenance schedules based on updated practices.
- Train staff on any new procedures or recommendations.
- Document any changes made to maintenance practices.
Annual Preventive Maintenance Checklist
- Gather baseline performance data.
- Evaluate air flow rates and temperature differentials.
- Analyze energy consumption against operational parameters.
- Identify areas of inefficiency within the system.
- Prepare a report summarizing findings and recommendations.
- Identify components showing signs of wear.
- Source replacement parts from approved suppliers.
- Follow manufacturer's guidelines for installation.
- Document all replacements in the maintenance log.
- Dispose of old parts according to regulations.
- Turn off power and ensure safety protocols.
- Use appropriate cleaning agents for different materials.
- Remove dust, debris, and contaminants from surfaces.
- Inspect components for damage during cleaning.
- Ensure all parts are dry before reassembly.
- Collect energy usage data from the past year.
- Use software tools to create performance graphs.
- Identify patterns or anomalies in energy consumption.
- Compile findings into a comprehensive report.
- Share insights with relevant stakeholders.
- Research current HVAC regulations applicable to the facility.
- Cross-check AHU operations against compliance requirements.
- Document any deviations and plan corrective actions.
- Maintain records of compliance audits.
- Schedule follow-up reviews to ensure ongoing compliance.
- Identify areas for potential upgrades based on analysis.
- Consult with engineers or specialists for recommendations.
- Create a timeline and budget for upgrades.
- Communicate plans to relevant teams.
- Document all modifications in the maintenance log.
- Check calibration settings against manufacturer specifications.
- Test sensor readings against known standards.
- Adjust calibration as necessary to ensure accuracy.
- Document any changes made during inspection.
- Schedule regular calibration checks in future maintenance.
- Turn off power before inspecting connections.
- Use appropriate tools to check for loose connections.
- Tighten connections as needed to ensure security.
- Inspect for signs of corrosion or damage.
- Document findings and any repairs made.
- Simulate emergency conditions to test systems.
- Confirm that shut-off mechanisms engage properly.
- Inspect control panels for clear labeling and accessibility.
- Document test results and any necessary repairs.
- Schedule regular testing intervals to ensure functionality.
- Visually inspect insulation for tears or degradation.
- Check for moisture accumulation or mold growth.
- Replace damaged insulation with appropriate materials.
- Ensure insulation is securely fastened.
- Document findings and actions taken.
- Remove any debris or buildup in the drain.
- Flush the drain with water to ensure flow.
- Inspect traps for integrity and replace if necessary.
- Document the cleaning process and any issues found.
- Schedule regular maintenance for condensate systems.
- Gather all maintenance and inspection records.
- Ensure entries are complete and accurate.
- Update records to reflect recent maintenance activities.
- Store logs in an accessible digital format.
- Train staff on proper record-keeping procedures.
- Measure levels of CO2, VOCs, and particulate matter.
- Use appropriate equipment for air quality testing.
- Compare results against health and safety standards.
- Document findings and recommend actions if necessary.
- Schedule follow-up assessments to monitor changes.
- Remove dust and debris from fan blades.
- Check for signs of wear or damage on assemblies.
- Lubricate moving parts as specified by the manufacturer.
- Test fan operation after cleaning.
- Document maintenance performed on assemblies.
- Check humidity levels against desired set points.
- Test the operation of all control settings.
- Inspect components for leaks or signs of wear.
- Document performance results and any repairs needed.
- Schedule regular testing to ensure proper operation.
- Use a manometer to measure static pressure.
- Check airflow rates at supply and return vents.
- Identify any obstructions affecting airflow.
- Document measurements and any corrective actions.
- Schedule follow-up checks to maintain performance.
- Inspect filters for dirt and damage.
- Determine if filters meet required specifications.
- Recommend replacements based on condition assessment.
- Document filter condition and any actions taken.
- Schedule regular filter checks and replacements.
- Analyze current control settings against performance data.
- Identify opportunities for energy savings.
- Adjust control strategies accordingly and test outcomes.
- Document changes made and their expected impact.
- Review set points regularly for ongoing optimization.
- Check for signs of rust, corrosion, or damage.
- Inspect welds, bolts, and supports for stability.
- Repair or replace compromised structural elements.
- Document findings and actions taken.
- Schedule regular inspections to maintain integrity.
- Use gauges to measure refrigerant levels accurately.
- Inspect lines for signs of wear or leaks.
- Repair any leaks found and recharge refrigerant as needed.
- Document refrigerant levels and repairs made.
- Schedule regular leak checks to prevent issues.
- Use vibration analysis tools to assess equipment.
- Identify any unusual patterns indicating wear.
- Compare results to baseline data for each component.
- Document findings and schedule necessary repairs.
- Train staff on recognizing vibration indicators.
- Prepare training materials and documentation.
- Schedule training sessions for relevant personnel.
- Provide hands-on demonstrations of new features.
- Gather feedback from staff on training effectiveness.
- Document training completion for compliance records.
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