A detailed Fan Coil Unit SEMI ANNUAL preventive maintenance checklists
1. Visual Inspection
2. Cleaning
3. Electrical Components
4. Mechanical Components
- Check for any visible cracks or bends in the fan blades.
- Ensure the fan is firmly attached to its mounting points.
- Listen for any unusual noises indicating loose components.
- Monitor the motor's operation for smooth and consistent performance.
- Apply appropriate lubricant to bearing points if dry.
- Ensure motor electrical connections are secure and free from corrosion.
- Inspect bearings for signs of wear or damage.
- Check for excessive play or noise when rotating.
- Replace any bearings that do not meet operational standards.
- Remove any debris or buildup on the blower wheel.
- Check the wheel for balance and secure attachment.
- Ensure airflow paths are clear of obstructions.
- Check for any visible cracks or bends in the fan blades.
- Ensure the fan is firmly attached to its mounting points.
- Listen for any unusual noises indicating loose components.
- Monitor the motor's operation for smooth and consistent performance.
- Apply appropriate lubricant to bearing points if dry.
- Ensure motor electrical connections are secure and free from corrosion.
- Inspect bearings for signs of wear or damage.
- Check for excessive play or noise when rotating.
- Replace any bearings that do not meet operational standards.
- Remove any debris or buildup on the blower wheel.
- Check the wheel for balance and secure attachment.
- Ensure airflow paths are clear of obstructions.
5. Refrigerant System
6. Water System
- Visually examine pipes and joints for any signs of moisture.
- Use a leak detection solution on joints and fittings.
- Check for water pooling around the base of the unit.
- Tighten any loose fittings as necessary.
- Report any significant leaks for immediate repair.
- Measure the flow rate using a flow meter.
- Compare readings against manufacturer specifications.
- Inspect flow meters for accuracy and functionality.
- Check for obstructions in the coil that might impede flow.
- Adjust flow settings if necessary to ensure optimal performance.
- Manually operate valves to ensure smooth movement.
- Listen for unusual sounds indicating malfunction.
- Inspect actuators for proper alignment and function.
- Check electrical connections for any signs of damage.
- Lubricate moving parts as per manufacturer guidelines.
- Remove strainers and filters for inspection.
- Clean or replace filters as needed based on condition.
- Check strainers for debris and clean accordingly.
- Reinstall components securely after cleaning.
- Document the condition of filters and strainers.
- Visually assess insulation for tears or wear.
- Check for moisture accumulation indicating insulation failure.
- Ensure that insulation is secure and properly fitted.
- Replace any damaged insulation to improve efficiency.
- Document any findings regarding insulation condition.
- Use a thermometer to measure water temperature.
- Compare temperatures against system specifications.
- Inspect temperature gauges for accuracy.
- Adjust temperature settings if readings are outside acceptable ranges.
- Record temperature measurements for future reference.
- Use pressure gauges to measure differential pressure.
- Compare readings with manufacturer's recommended values.
- Inspect pressure gauges for accuracy and functionality.
- Identify and address any significant pressure issues.
- Document pressure readings for maintenance records.
- Remove any debris from the drain pans.
- Clean pans with a suitable cleaning solution.
- Inspect for signs of rust or corrosion.
- Ensure drainage pathways are clear and functional.
- Document the condition of drain pans after cleaning.
- Inspect all connections for tightness and integrity.
- Check for signs of rust or corrosion on fittings.
- Tighten any loose connections as necessary.
- Replace corroded fittings to prevent leaks.
- Document any repairs or replacements made.
- Inspect water lines and components for sediment accumulation.
- Use appropriate methods to remove sediment build-up.
- Flush the system if necessary to clear obstructions.
- Document the amount and location of sediment found.
- Schedule follow-up maintenance if sediment issues persist.
- Plug in and activate the condensate pump.
- Listen for operation and check for vibrations.
- Inspect the discharge line for blockages.
- Check the float switch for proper operation.
- Document any issues and repairs needed.
- Review logs for chemical usage and treatments applied.
- Test water quality to ensure it meets standards.
- Check chemical levels in tanks or containers.
- Document any discrepancies or needed adjustments.
- Ensure compliance with safety protocols for handling chemicals.
- Manually operate dampers to check for smooth movement.
- Inspect for any obstructions or debris blocking airflow.
- Ensure seals are intact and functioning properly.
- Document the condition of dampers and any required repairs.
- Confirm that dampers close fully when not in use.
- Record all observations in the maintenance log.
- Include specifics on repairs, adjustments, and replacements.
- Note dates and personnel involved in the inspection.
- Ensure documentation is clear and easy to understand.
- Review documentation with the maintenance team regularly.
Use in Manifestly