6.6206.1 Decommissioning Existing Exhaust or Supply Ventilation Systems

Topic: 
Whole Building Ventilation
Subtopic: 
Equipment Removal
Desired Outcome: 
Safely and properly eliminate fan
TitleSpecification(s)Objective(s)
6.6206.1a
Power supply

Power supply will be disconnected and properly terminated in visible junction box

Safe removal of equipment

Ensure worker safety
6.6206.1b
Removal

Fan components will be removed and disposed of lawfully

Duct work will be removed if necessary

OR

Fan housing will be left in place, ducts will be removed, and leakage points will be air sealed

Hole will be sealed and insulated to preserve the thermal and pressure boundary

Remove fan

Preserve aesthetics, and thermal and pressure boundary
6.6206.1c
Repair

Fan opening will be sealed and insulated

If necessary, the void from the duct work removal will be insulated

Fan termination will be sealed

Maximize energy efficiency

Preserve the thermal and pressure boundary
6.6206.1d
Combustion Appliance Zone ( CAZ CAZ Combustion appliance zone ) testing

Combustion safety test will be performed where combustion appliances are utilized

Identify possible conditions that can cause unsafe equipment operating conditions