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ducts and diffusers
Duct Inspection
Check for visible damage or corrosion.
Ensure proper insulation is intact.
Verify that all connections are secure and sealed.
Inspect for any blockages or obstructions.
Here are some additional steps that could be included in the Duct Inspection section of the checklist
Inspect ductwork for any signs of leaks or air loss
Check for proper alignment of ducts to ensure optimal airflow
Examine the condition of duct hangers and supports for stability
Look for signs of mold or mildew growth within the ductwork
Assess the cleanliness of the inside of the ducts
Verify that all dampers (if applicable) are functioning correctly
Ensure that the duct size is appropriate for the system's airflow requirements
Check for any signs of pest infestation within the ducts
Inspect for excessive dust accumulation at entry and exit points
Confirm that the ductwork is securely fastened to prevent vibration or movement
Diffuser Evaluation
Assess the condition of the diffuser grille.
Ensure that the airflow is unobstructed.
Check for proper alignment and secure mounting.
Test the operation of adjustable louvers, if applicable.
Here are some additional steps that could be included in the Diffuser Evaluation section
Inspect for any signs of air leakage around the diffuser
Evaluate the size and type of diffuser to ensure compatibility with the system design
Measure the temperature differential across the diffuser to assess performance
Check for even distribution of air across the room by observing airflow patterns
Verify that the diffuser is free from dust and debris buildup
Assess the noise level produced by the diffuser during operation
Confirm that the diffuser is located appropriately for optimal performance (e.g., away from obstructions)
Check for any physical damage or deformation of the diffuser
Ensure that the diffuser type is suitable for the intended application (e.g., supply, return, or exhaust)
Review the manufacturer's specifications for installation and performance criteria
Airflow Measurement
Measure airflow at supply diffusers using a flow hood.
Compare measured airflow to design specifications.
Identify any diffusers with inadequate airflow.
Cleaning and Maintenance
Schedule regular cleaning of ducts and diffusers.
Inspect for dust and debris buildup.
Ensure filters are replaced or cleaned as needed.
System Performance Review
Evaluate overall HVAC system performance.
Check for inconsistent temperatures across different spaces.
Assess noise levels from ducts and diffusers.
Here are some additional steps that could be included in the System Performance Review section of the checklist
Verify the duct system is properly sealed to prevent air leaks
Review thermostat settings and their impact on system performance
Analyze energy consumption data to identify inefficiencies
Check for proper airflow distribution in all zones
Inspect for signs of condensation or moisture issues around ducts
Assess the effectiveness of the insulation on ductwork
Monitor and document changes in system performance over time
Evaluate the control system for any faults or irregularities
Conduct a thermal imaging inspection to identify hot or cold spots
Review maintenance records and schedule future maintenance as needed
Documentation
Record all findings and measurements.
Note any repairs or maintenance performed.
Update system performance logs regularly.
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