A detailed Fan Coil Unit QUARTERLY preventive maintenance checklists

1. Safety Precautions

Ensure all power to the fan coil unit is turned off.

Use appropriate personal protective equipment (PPE).

Verify that the work area is clean and free of hazards.

Use lockout/tagout procedures to prevent accidental energization.

Certainly! Here are some additional steps that can be included in the "Safety Precautions" section of the quarterly preventive maintenance checklist for a Fan Coil Unit

1. Safety Precautions

Ensure all power to the fan coil unit is turned off

Use appropriate personal protective equipment (PPE)

Verify that the work area is clean and free of hazards

Use lockout/tagout procedures to prevent accidental energization

- Check for any signs of water leaks or corrosion near the unit

- Ensure that the area around the unit is well-ventilated

- Familiarize yourself with the location of emergency shut-off switches

- Avoid wearing loose clothing or jewelry that may get caught in the fan or moving parts

- Use a ladder or platform that is stable and appropriate for the height of the work being performed

- Ensure that all tools and equipment are in good condition and suitable for the task

- Communicate your presence and work plans to other personnel in the area to avoid accidents

- Inspect the unit for any potential hazards, such as sharp edges or exposed electrical wires, before starting work

- Have a first aid kit readily accessible in case of an emergency

- Ensure that fire extinguishers are available and easily accessible in the work area

- Review the manufacturer's safety guidelines and recommendations for maintenance procedures

These additional steps can help ensure a safe working environment while maintaining the fan coil unit

2. Visual Inspection

Check for any signs of leaks around the unit.

Examine joints and connections for moisture.
Look for water stains or corrosion.
Inspect surrounding surfaces for signs of wetness.
Check under the unit for pooled water.

Inspect the casing and insulation for damage or deterioration.

Look for cracks, dents, or rust on the casing.
Check insulation for tears or wear.
Ensure insulation is securely attached.
Assess for any signs of mold or mildew.

Ensure that the drain pan is intact and free of debris.

Inspect for any cracks or leaks in the pan.
Remove any debris or buildup.
Check for proper drainage flow.
Verify that the pan is sloped correctly.

Verify that all access panels are secure and properly sealed.

Check that screws or fasteners are tight.
Inspect seals for wear or damage.
Ensure panels fit snugly without gaps.
Look for any signs of air leaks.

Certainly! Here are some additional steps that can be included in the "Visual Inspection" section of the Fan Coil Unit Quarterly Preventive Maintenance Checklist

2. Visual Inspection

Check for any signs of leaks around the unit

Examine joints and connections for moisture.
Look for water stains or corrosion.
Inspect surrounding surfaces for signs of wetness.
Check under the unit for pooled water.

Inspect the casing and insulation for damage or deterioration

Look for cracks, dents, or rust on the casing.
Check insulation for tears or wear.
Ensure insulation is securely attached.
Assess for any signs of mold or mildew.

Ensure that the drain pan is intact and free of debris

Inspect for any cracks or leaks in the pan.
Remove any debris or buildup.
Check for proper drainage flow.
Verify that the pan is sloped correctly.

Verify that all access panels are secure and properly sealed

Check that screws or fasteners are tight.
Inspect seals for wear or damage.
Ensure panels fit snugly without gaps.
Look for any signs of air leaks.

Look for any signs of corrosion on metal components

Examine metal parts for rust or pitting.
Check connections and fittings for wear.
Assess any protective coatings for deterioration.
Look for discoloration or flaking paint.

Inspect the unit for any signs of physical damage or wear

Check for dents or structural deformities.
Look for loose or broken parts.
Assess wear on moving components.
Ensure all components are securely attached.

Check that the fan coil unit is level and properly mounted

Use a level tool to assess alignment.
Inspect mounting brackets for secure attachment.
Check for any signs of shifting or movement.
Ensure the unit is stable and not wobbling.

Examine the surrounding area for obstructions that may affect airflow

Clear any items blocking airflow around the unit.
Check for dust or debris on intake vents.
Ensure there is adequate space for air circulation.
Look for vegetation or other barriers nearby.

Ensure that the unit's label and identification plate are legible and intact

Check for fading or damage on labels.
Ensure all information is visible and clear.
Verify that the identification plate is securely attached.
Look for any signs of tampering or removal.

Look for signs of pest infestations around the unit

Check for droppings or nesting materials.
Look for entry points around the unit.
Inspect for dead insects or pests in the area.
Ensure that pest control measures are in place.

Verify that the electrical connections are secure and free from corrosion

Inspect wires for fraying or damage.
Check that connections are tight and secure.
Look for signs of corrosion on terminals.
Ensure that electrical components are clean.

Inspect the condensate drain line for any signs of blockage or damage

Check for kinks or bends in the line.
Look for buildup of algae or debris.
Ensure that the line is securely attached.
Verify that water drains freely without obstruction.

Check for any unusual noises or vibrations during operation

Listen for rattling or grinding sounds.
Assess for excessive vibration while running.
Identify any irregular operational sounds.
Ensure that all components are functioning smoothly.

3. Air Filter Maintenance

Remove and inspect air filters for dirt and damage.

Turn off the fan coil unit before accessing filters.
Remove filters carefully from their housing.
Inspect for visible dirt accumulation and physical damage.
Check for any irregular shapes or bends.

Clean or replace filters as necessary.

If reusable, clean filters with water and a mild detergent.
Rinse thoroughly and allow to dry completely.
If disposable, replace with new filters that meet specifications.
Ensure filters are compatible with the fan coil unit model.

Ensure proper reinstallation of filters to maintain airflow.

Align filters correctly within their housing.
Ensure the airflow direction matches indicators on the filter.
Secure filters firmly to prevent leakage.
Check for any obstructions that may affect airflow.

Certainly! Here are some additional steps that could be included in the "Air Filter Maintenance" section of a Fan Coil Unit quarterly preventive maintenance checklist

3. Air Filter Maintenance

Remove and inspect air filters for dirt and damage

Turn off the fan coil unit before accessing filters.
Remove filters carefully from their housing.
Inspect for visible dirt accumulation and physical damage.
Check for any irregular shapes or bends.

Clean or replace filters as necessary

If reusable, clean filters with water and a mild detergent.
Rinse thoroughly and allow to dry completely.
If disposable, replace with new filters that meet specifications.
Ensure filters are compatible with the fan coil unit model.

Ensure proper reinstallation of filters to maintain airflow

Align filters correctly within their housing.
Ensure the airflow direction matches indicators on the filter.
Secure filters firmly to prevent leakage.
Check for any obstructions that may affect airflow.

Check the filter housing for any signs of wear or damage

Inspect housing for cracks or corrosion.
Ensure all mounting points are secure.
Look for gaps that could allow unfiltered air.
Report any issues to maintenance personnel immediately.

Verify the filter size and type against manufacturer specifications to ensure proper fit

Refer to the equipment manual for specifications.
Measure existing filters to confirm dimensions.
Check filter type compatibility with the fan coil unit.
Order replacements that match specified requirements.

Inspect the filter media for any tears or holes that could allow unfiltered air to pass through

Hold filters up to light to check for holes.
Gently flex filter media to identify weak spots.
Replace filters showing any sign of damage.
Ensure integrity to maintain indoor air quality.

Clean the filter housing and surrounding area to prevent dirt buildup

Use a vacuum or damp cloth to remove dust.
Pay special attention to corners and crevices.
Wipe down surfaces with a mild cleaning solution.
Ensure all debris is cleared before reinstalling filters.

Record the filter maintenance in the maintenance log, noting the filter type and date of replacement or cleaning

Document filter condition before and after maintenance.
Include the date of service and technician's name.
Note any issues encountered during inspection.
Keep records accessible for future reference.

Educate personnel on the importance of regular filter maintenance and how to check filters between scheduled maintenance

Provide training sessions on filter maintenance practices.
Distribute written materials outlining procedures.
Encourage questions to clarify any uncertainties.
Emphasize the impact of filters on system efficiency.

If using reusable filters, ensure they are thoroughly dried before reinstalling to prevent mold growth

Allow filters to air dry in a well-ventilated area.
Avoid using heat sources that could damage filters.
Check for moisture before reinstallation.
Store filters in a clean, dry location if not in use.

4. Coil Cleaning

Inspect the cooling and heating coils for dirt and debris.

Visually assess coils for visible dirt, dust, or obstructions.
Use a flashlight to inspect hard-to-see areas.
Note any heavy buildup that may require special attention.

Clean coils using a soft brush or coil cleaner solution as needed.

Gently brush away loose debris using a soft brush.
Apply coil cleaner solution according to manufacturer's instructions.
Avoid using harsh chemicals that could damage the coils.

Rinse coils thoroughly to remove cleaning agents.

Use a hose with low pressure to rinse the coils.
Ensure all cleaning agents are removed from the surface.
Check that water drains properly from the coils.

Check for any signs of corrosion or damage on the coils.

Inspect the surface for rust, pitting, or flaking.
Look for any holes or cracks that may affect performance.
Document any corrosion for further evaluation or repair.

Certainly! Here are some additional steps that could be included in the Coil Cleaning section of the Fan Coil Unit Quarterly Preventive Maintenance Checklist

4. Coil Cleaning

Inspect the cooling and heating coils for dirt and debris

Visually assess coils for visible dirt, dust, or obstructions.
Use a flashlight to inspect hard-to-see areas.
Note any heavy buildup that may require special attention.

Clean coils using a soft brush or coil cleaner solution as needed

Gently brush away loose debris using a soft brush.
Apply coil cleaner solution according to manufacturer's instructions.
Avoid using harsh chemicals that could damage the coils.

Rinse coils thoroughly to remove cleaning agents

Use a hose with low pressure to rinse the coils.
Ensure all cleaning agents are removed from the surface.
Check that water drains properly from the coils.

Check for any signs of corrosion or damage on the coils

Inspect the surface for rust, pitting, or flaking.
Look for any holes or cracks that may affect performance.
Document any corrosion for further evaluation or repair.

Verify that the coil fins are straight and not bent; use a fin comb if necessary

Examine fins for any bends or distortions.
Use a fin comb to straighten bent fins carefully.
Ensure fins are evenly spaced for optimal airflow.

Inspect the coil for any signs of leaks, especially around joints and connections

Look for moisture or water stains around joints.
Check for any unusual sounds that might indicate a leak.
Seal any leaks found according to maintenance protocols.

Ensure that the coil drain pans are clean and free from obstructions that could impede drainage

Remove debris and clean drain pans thoroughly.
Check for blockages in the drain lines.
Ensure proper slope for effective drainage.

Check for proper airflow across the coils to ensure efficient operation

Use an anemometer to measure airflow rates.
Inspect for any obstructions that could hinder airflow.
Ensure fan operation is optimal to maintain airflow.

Apply a protective coating or treatment to the coils if recommended by the manufacturer

Consult manufacturer's guidelines for appropriate coatings.
Apply treatment evenly and allow to dry as instructed.
Recheck coils after application for any overspray or residue.

Document any findings or issues related to the coils for future reference and maintenance planning

Note all observations and maintenance actions taken.
Record any repairs or parts replaced.
Update maintenance logs for tracking future work.

5. Fan and Motor Inspection

Inspect the fan blades for dirt accumulation and damage.

Remove any visible dirt or debris from the blades.
Check for cracks or chips on the blades.
Ensure blades are balanced and not bent.
Document any damage for further evaluation.

Lubricate fan motor bearings as per manufacturer recommendations.

Refer to the manufacturer's lubrication schedule.
Use appropriate lubricant type and amount.
Apply lubricant to both bearings evenly.
Wipe off excess lubricant to prevent contamination.

Check for proper fan operation and listen for unusual noises.

Start the fan and observe its operation.
Listen for grinding, squealing, or rattling sounds.
Check for irregular vibration patterns.
Document any unusual findings for further inspection.

Verify that the motor mounts are secure and free of vibration.

Inspect all mounting bolts for tightness.
Check for any visible wear on mounts.
Ensure the motor is stable during operation.
Replace or repair mounts if necessary.

Here are some additional steps that could be included in the "Fan and Motor Inspection" section of the quarterly preventive maintenance checklist for a fan coil unit

5. Fan and Motor Inspection

Inspect the fan blades for dirt accumulation and damage

Remove any visible dirt or debris from the blades.
Check for cracks or chips on the blades.
Ensure blades are balanced and not bent.
Document any damage for further evaluation.

Lubricate fan motor bearings as per manufacturer recommendations

Refer to the manufacturer's lubrication schedule.
Use appropriate lubricant type and amount.
Apply lubricant to both bearings evenly.
Wipe off excess lubricant to prevent contamination.

Check for proper fan operation and listen for unusual noises

Start the fan and observe its operation.
Listen for grinding, squealing, or rattling sounds.
Check for irregular vibration patterns.
Document any unusual findings for further inspection.

Verify that the motor mounts are secure and free of vibration

Inspect all mounting bolts for tightness.
Check for any visible wear on mounts.
Ensure the motor is stable during operation.
Replace or repair mounts if necessary.

Measure the fan motor current draw and compare it to the manufacturer's specifications to ensure it is operating within limits

Use a clamp meter to measure current draw.
Compare readings to manufacturer specifications.
Document current draw for future reference.
Investigate any discrepancies in current draw.

Check the alignment of the fan and motor shaft to prevent premature wear

Use a straight edge or alignment tool.
Adjust the motor position if misaligned.
Check alignment regularly to ensure longevity.
Document alignment status after adjustments.

Inspect the fan housing for signs of wear, corrosion, or damage

Look for rust, cracks, or dents in the housing.
Check the integrity of seals and gaskets.
Clean the housing to prevent corrosion.
Report any significant damage for repair.

Clean any debris from the fan and motor area to improve airflow and efficiency

Turn off power before cleaning.
Use a vacuum or compressed air to remove debris.
Ensure all areas around the fan and motor are clear.
Dispose of debris properly to maintain a clean workspace.

Examine the fan speed settings to ensure they are set according to operational requirements

Check current speed settings against operational needs.
Adjust settings if necessary for efficiency.
Document any changes made to speed settings.
Verify that adjustments meet system requirements.

Test the thermal overload protection to ensure it is functioning correctly

Simulate overload conditions safely.
Monitor for automatic shutoff activation.
Reset the system after testing.
Document test results and any necessary follow-up actions.

Verify that all wiring connections to the motor are secure and free from corrosion

Inspect all wiring for signs of wear or damage.
Tighten loose connections carefully.
Clean any corroded connections with appropriate cleaner.
Document the condition of wiring for future reference.

Inspect the condition of the fan belt (if applicable) and adjust or replace as necessary

Check for wear, cracks, or fraying on the belt.
Ensure proper tension is maintained.
Replace the belt if it shows significant wear.
Document any maintenance performed on the belt.

Confirm that the fan operation is consistent with system demand and adjust controls if needed

Monitor fan operation during peak and low demand.
Adjust controls to optimize performance.
Document any adjustments made for future reference.
Review system demand regularly to ensure alignment.

6. Drainage System Check

Inspect condensate drain lines for blockages or leaks.

Visually examine drain lines for any visible obstructions.
Look for signs of water accumulation around fittings.
Check for any discoloration indicating potential leaks.
Use a flashlight to inspect hard-to-see areas.

Flush drain lines with water to ensure proper flow.

Use a hose or bucket to introduce water into the drain line.
Observe the water flow to ensure it exits freely.
Check for any unusual sounds indicating a blockage.
Repeat until water flows without obstruction.

Check that the drain pan is draining correctly and not holding water.

Inspect the pan for water accumulation.
Ensure the drain outlet is clear and unobstructed.
Look for any signs of rust or deterioration.
Monitor the pan after flushing to confirm proper drainage.

Here are some additional steps that could be included in the "Drainage System Check" section of the Fan Coil Unit quarterly preventive maintenance checklist

6. Drainage System Check

Inspect condensate drain lines for blockages or leaks

Visually examine drain lines for any visible obstructions.
Look for signs of water accumulation around fittings.
Check for any discoloration indicating potential leaks.
Use a flashlight to inspect hard-to-see areas.

Flush drain lines with water to ensure proper flow

Use a hose or bucket to introduce water into the drain line.
Observe the water flow to ensure it exits freely.
Check for any unusual sounds indicating a blockage.
Repeat until water flows without obstruction.

Check that the drain pan is draining correctly and not holding water

Inspect the pan for water accumulation.
Ensure the drain outlet is clear and unobstructed.
Look for any signs of rust or deterioration.
Monitor the pan after flushing to confirm proper drainage.

Examine the drain pan for signs of corrosion or damage

Inspect the surface for rust spots or pitting.
Check for cracks or holes that could lead to leaks.
Feel for softness or weakness in the material.
Document any significant findings for future reference.

Verify that the drain line is properly insulated to prevent condensation

Check insulation material for integrity and coverage.
Look for any exposed sections that could cause condensation.
Ensure insulation is securely attached to the drain line.
Replace any damaged or missing insulation.

Ensure that the drain line is sloped correctly to facilitate drainage

Use a level to check the slope of the drain line.
Adjust the line if it is not sloped towards the drain.
Verify that any bends do not create low points.
Confirm that gravity aids in proper drainage.

Inspect all connections and joints for secure fittings and signs of wear

Look for loose or damaged fittings that could leak.
Tighten any loose connections as necessary.
Check for deterioration of seals or gaskets.
Replace worn components to ensure a secure fit.

Test the operation of the float switch (if applicable) to ensure it activates properly

Manually lift the float to check for activation.
Listen for the sound of the pump engaging.
Ensure the float returns to its original position.
Replace the float switch if it fails to activate.

Clean any debris or algae from the drain pan and surrounding area

Use a brush or cloth to remove any buildup.
Rinse the pan with clean water to eliminate residues.
Inspect for any signs of biological growth.
Dispose of debris in accordance with safety protocols.

Check for any signs of mold or mildew around the drainage area

Inspect the area for dark spots or unusual odors.
Use a moisture meter to check humidity levels.
Clean affected areas with appropriate mold removal solutions.
Consider implementing a dehumidification solution if necessary.

Document any findings and actions taken in the maintenance log

Record the date and time of the inspection.
Detail any issues found and actions taken.
Include photographs if necessary for clarity.
Ensure log entries are clear and concise for future reference.

7. Electrical Components Inspection

Inspect all electrical connections for tightness and signs of wear.

Use a torque wrench to check tightness.
Look for corrosion or discoloration.
Retighten any loose connections.
Document findings for future reference.

Check for any frayed wires or damaged insulation.

Look for exposed wire or insulation damage.
Replace any frayed wires immediately.
Use electrical tape for minor repairs.
Log any repairs needed.

Test the operation of safety switches and controls.

Activate each switch manually.
Ensure switches engage and disengage smoothly.
Check for proper indicator lights.
Replace any malfunctioning switches.

Ensure that all electrical enclosures are properly sealed.

Inspect gaskets and seals for integrity.
Look for any gaps or cracks.
Replace damaged seals promptly.
Confirm enclosure is free from moisture.

Here are some additional steps that could be included in the Electrical Components Inspection section of the Fan Coil Unit Quarterly Preventive Maintenance Checklist

7. Electrical Components Inspection

Inspect all electrical connections for tightness and signs of wear

Use a torque wrench to check tightness.
Look for corrosion or discoloration.
Retighten any loose connections.
Document findings for future reference.

Check for any frayed wires or damaged insulation

Look for exposed wire or insulation damage.
Replace any frayed wires immediately.
Use electrical tape for minor repairs.
Log any repairs needed.

Test the operation of safety switches and controls

Activate each switch manually.
Ensure switches engage and disengage smoothly.
Check for proper indicator lights.
Replace any malfunctioning switches.

Ensure that all electrical enclosures are properly sealed

Inspect gaskets and seals for integrity.
Look for any gaps or cracks.
Replace damaged seals promptly.
Confirm enclosure is free from moisture.

Verify the tightness of terminal connections on the fan motor and other components

Use a torque wrench for proper tightness.
Check for any signs of wear or corrosion.
Retighten as necessary to prevent overheating.
Document any issues found.

Inspect circuit boards for any signs of overheating or damage

Look for discoloration or burnt areas.
Check solder joints for cracks.
Replace any damaged circuit boards.
Ensure all components are securely mounted.

Measure voltage and current draw to ensure they are within specified limits

Use a multimeter to measure voltage.
Check current draw against manufacturer specs.
Document readings for future maintenance.
Investigate any abnormal readings.

Check for proper grounding of all electrical components

Inspect grounding wires for integrity.
Ensure connections are tight and corrosion-free.
Use a multimeter to check ground continuity.
Address any grounding issues immediately.

Inspect relays and contactors for wear and proper operation

Test operation of each relay and contactor.
Look for signs of pitting or overheating.
Replace any components that fail testing.
Document any findings.

Test the operation of any built-in timers or programmable controls

Check programming settings for accuracy.
Run a test cycle to ensure correct operation.
Verify timer accuracy and response.
Document any adjustments made.

Ensure that all fuses and breakers are rated correctly and functional

Check fuse ratings against specifications.
Test each fuse and breaker for functionality.
Replace any that are blown or faulty.
Document any replacements.

Check for signs of corrosion on electrical terminals and connections

Inspect all terminals for rust or corrosion.
Cleaning terminals with a wire brush if needed.
Apply dielectric grease to prevent corrosion.
Log any repairs or replacements needed.

Inspect the power supply line for any signs of wear or damage

Look for frays, cuts, or exposed wiring.
Check for loose connections at both ends.
Replace any damaged sections immediately.
Document findings for future reference.

8. System Controls and Calibration

Test all thermostat and control settings for accuracy.

Set thermostat to desired temperature.
Wait for system response.
Compare actual temperature to setpoint.
Record discrepancies.
Adjust settings if necessary.

Calibrate sensors and controls as necessary.

Use calibration tools as per manufacturer instructions.
Adjust sensor readings to match known standards.
Document calibration changes.
Check for any errors in control signals.
Repeat checks after adjustments.

Verify that the system responds appropriately to temperature changes.

Adjust thermostat settings by several degrees.
Observe system response time.
Check if temperature reaches new setpoint.
Monitor for any unusual operation.
Document findings.

Here are some additional steps that could be included in the "System Controls and Calibration" section of the Fan Coil Unit Quarterly Preventive Maintenance Checklist

8. System Controls and Calibration

Test all thermostat and control settings for accuracy

Set thermostat to desired temperature.
Wait for system response.
Compare actual temperature to setpoint.
Record discrepancies.
Adjust settings if necessary.

Calibrate sensors and controls as necessary

Use calibration tools as per manufacturer instructions.
Adjust sensor readings to match known standards.
Document calibration changes.
Check for any errors in control signals.
Repeat checks after adjustments.

Verify that the system responds appropriately to temperature changes

Adjust thermostat settings by several degrees.
Observe system response time.
Check if temperature reaches new setpoint.
Monitor for any unusual operation.
Document findings.

Check for proper operation of zone dampers and actuators

Inspect each zone damper for physical blockages.
Manually operate dampers to ensure full range of motion.
Listen for any unusual noises during operation.
Check actuator responsiveness to control signals.
Record any maintenance needs.

Inspect the communication between the thermostat and the fan coil unit

Check wiring and connections for damage.
Test signal strength and response time.
Verify that the thermostat displays correct system status.
Look for error messages.
Document any communication issues.

Adjust setpoints for optimal energy efficiency and comfort

Review current settings against occupancy patterns.
Adjust heating/cooling setpoints for efficiency.
Ensure comfort levels are maintained.
Consider seasonal adjustments.
Document the new setpoints.

Review and update any software for smart controls or building management systems

Check for available software updates.
Follow vendor instructions for updates.
Backup current system settings before updating.
Test system functionality post-update.
Record version changes.

Confirm that all safety limits and alarms are functioning correctly

Test all safety limit switches.
Trigger alarms to ensure they activate.
Check alarm indicators for visibility.
Review alarm history for any faults.
Document safety check results.

Perform a functional test of the system in both heating and cooling modes

Switch the system to heating mode.
Monitor temperature rise and system performance.
Switch to cooling mode and observe temperature drop.
Check for any unusual noises or issues.
Document functional test results.

Ensure that any remote monitoring systems are operational and correctly reporting data

Check connectivity of remote monitoring devices.
Verify data accuracy against manual readings.
Test alerts and notifications.
Review system logs for errors.
Document operational status.

9. Documentation and Reporting

Record all maintenance activities in the maintenance log.

Note any issues found and corrective actions taken.

Schedule any necessary follow-up maintenance or repairs.

Review the checklist for completeness and compliance with standards.

10. Final Checks and Clean-Up

Ensure all tools and equipment are removed from the work area.

Confirm that all access panels are securely closed.

Turn the power back on and perform a final operational check.

Report any unresolved issues to the maintenance supervisor.

This checklist should be customized as necessary to fit the specific requirements of your organization and the particular fan coil units in use.

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AI Checklist Generator

A detailed Fan Coil Unit QUARTERLY preventive maintenance checklists

1. Safety Precautions

2. Visual Inspection

3. Air Filter Maintenance

4. Coil Cleaning

5. Fan and Motor Inspection

6. Drainage System Check

7. Electrical Components Inspection

8. System Controls and Calibration

9. Documentation and Reporting

10. Final Checks and Clean-Up

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