A detailed Fan Coil Unit DAILY preventive maintenance checklists
1. Visual Inspection
2. Air Filter Maintenance
3. Coil Inspection
4. Fan and Motor Check
- Stand close to the fan and motor during operation.
- Pay attention to any grinding, squeaking, or rattling sounds.
- Document any unusual noises for further investigation.
- Shut down the unit if noises indicate a potential issue.
- Turn off the power before inspection.
- Use a soft brush or vacuum to remove dust.
- Check for any physical damage to the blades.
- Ensure blades are balanced and securely attached.
- Observe the fan during operation for correct rotation.
- Use a tachometer to measure fan speed.
- Compare the speed with manufacturer specifications.
- Adjust the wiring if rotation is incorrect.
- Examine the motor casing for discoloration or cracks.
- Check for excessive heat by feeling the casing.
- Look for signs of oil leaks or corrosion.
- Ensure ventilation around the motor is adequate.
- Stand close to the fan and motor during operation.
- Pay attention to any grinding, squeaking, or rattling sounds.
- Document any unusual noises for further investigation.
- Shut down the unit if noises indicate a potential issue.
- Turn off the power before inspection.
- Use a soft brush or vacuum to remove dust.
- Check for any physical damage to the blades.
- Ensure blades are balanced and securely attached.
- Observe the fan during operation for correct rotation.
- Use a tachometer to measure fan speed.
- Compare the speed with manufacturer specifications.
- Adjust the wiring if rotation is incorrect.
- Examine the motor casing for discoloration or cracks.
- Check for excessive heat by feeling the casing.
- Look for signs of oil leaks or corrosion.
- Ensure ventilation around the motor is adequate.
5. Electrical Components
6. Control System Functionality
7. Draining System Check
8. System Performance
- Use a calibrated thermometer.
- Measure temperature at supply and return points.
- Calculate the differential.
- Ensure it meets manufacturer specifications.
- Adjust system settings if necessary.
- Use an anemometer to measure airflow at various locations.
- Compare readings to identify weak spots.
- Adjust diffusers or vents for balance.
- Document any irregularities for future reference.
- Maintain a log of performance metrics.
- Note any deviations from standard operating conditions.
- Include dates, times, and specific observations.
- Review logs regularly for trends.
- Check thermostat display for accuracy.
- Compare with a reliable thermometer.
- Adjust calibration settings as needed.
- Test response to set point changes.
- Use a thermometer at supply and return vents.
- Record temperatures in a maintenance log.
- Calculate efficiency based on temperature differences.
- Identify any need for system adjustments.
- Listen for rattling, grinding, or squealing sounds.
- Identify source of the noise.
- Document findings and schedule repairs if necessary.
- Perform visual inspections of components.
- Inspect the drain pan for standing water.
- Ensure drainage lines are clear and unobstructed.
- Clean the pan if any debris is present.
- Verify proper slope for drainage.
- Use a sound level meter at various distances.
- Compare with manufacturer noise specifications.
- Document results and address any excessive noise.
- Inspect fan blades and motor for issues.
- Use a timer or runtime meter.
- Compare actual runtimes to normal operating ranges.
- Document any discrepancies.
- Investigate prolonged runtimes for potential issues.
- Use a hygrometer to measure humidity.
- Compare readings to recommended levels.
- Document findings for future reference.
- Adjust system settings if necessary.
- Visually inspect coils during operation.
- Look for frost or ice accumulation.
- Note conditions that may lead to icing.
- Schedule defrosting or repairs if needed.
- Adjust thermostat settings and observe system response.
- Monitor time taken for adjustments to take effect.
- Document responsiveness and any delays.
- Investigate issues for potential repairs.
- Review operational needs with occupancy requirements.
- Check system settings against operational goals.
- Adjust modes as required for comfort.
- Document any changes made.
Use in Manifestly