Return Plenum Cleanliness Before Startup
Return plenums and open duct interiors need to be clean before startup so construction dust and debris do not get pulled into equipment or occupied spaces.
What This Helps With
Return plenums and open duct interiors need to be clean before startup so construction dust and debris do not get pulled into equipment or occupied spaces.
Apprentice words: return plenum clean, duct debris, startup dust, construction dust HVAC, dirty return
Common problem: Trash, screws, insulation scraps, or dust get left in return paths and pulled through the system.
Check First
What Not To Do
Do not use ductwork as a trash shelf. Do not start equipment with open dusty returns unless directed and protected.
What can go wrong: Trash, screws, insulation scraps, or dust get left in return paths and pulled through the system.
Better Foreman Question
Before startup, do we need a return plenum cleanout/walk and filter check in this area?
Verify With
Source to verify: Project IAQ plan, commissioning plan, foreman direction
Safe wording: Startup/IAQ procedures depend on project requirements.