Duct Cleaning Procedures – 33 STEPS
1. Test and inspect the furnace and air system
2. Seal off vents with magnet covers for maximum isolation
3. Protect walls and floors
4. Turn off the system
5. Inquire about air balancing and mark dampener
6. Create an access point in hot air trunk
7. Pre-inspection of hot air system
8. Protect coil and furnace with airbag
9. Connect suction to hot air trunk (create negative air)
10. Place the protective mat in front of the vent, vacuum register opening
11. Adjust register damper to allow maximum airflow
12. Using compressed air and whips, clean individual vents using compressed air (and negative air), blow out individual vents throughout the house
13. Re-adjust damper and vent settings for the balance system. Adjust airflow for balancing of the system
14. Using air snake, whips or brushes clean hot air trunk
15. Send reverse blowing skipper ball up individual hot air trunk for additional cleaning
16. Create suction at furnace face
17. Clean blower compartment
18. Using direct compressed air, clean fins of blower rotating blower (with air for 30 seconds each side and direction)
19. Post inspection of hot air system
20. Pre-test furnace function
21. Create an access point to the cold air return
22. Pre-inspection of the cold air return
23. Connect suction to the cold air return
24. Using compressed air, whips or brushes (and negative air) blow out individual cold air returns throughout the house
25. Using air snake, whips, or brushes, clean cold air return trunk
26. Post-inspection of the cold air return
27. Remove filter
28. Replace filter (clean reusable ones or replace with a new one if provided by client)
29. Inspect cold air return trunk
30. Inspect and adjust dampener
31. Seal up system
32. Turn the system on and test
33. Remove all magnetic covers