PREVENTION

PREVENTION of duct contamination is KEY to avoiding problems Follow these recommendations to avoid the need for costly duct cleaning: • Perform routine preventive maintenance of HVAC systems, by complying with manufacturer schedules for changing HVAC filters and cleaning coils and other components. • During building renovation, seal ductwork to prevent construction dust and debris from entering the HVAC system. • New ductwork frequently contains oil and debris. Before new ductwork is connected to the air handling system, it should be inspected for cleanliness and cleaned if necessary. • Maintain good housekeeping in occupied spaces. • Ensure that air intakes are located away from contaminant sources. • Consider routine inspections of ductwork. The National Air Duct Cleaning Association (NADCA)’s standard, “Assessment, Cleaning and Restoration of HVAC Systems – ACR 2006,” recommends that HVAC systems be visually inspected for cleanliness at regular intervals, depending on the building use. For healthcare facilities, the standard recommends annual inspections of air handling units, as well as supply and return ductwork

Operatives to rinse

Operatives to rinse off surface of canopy with clean water and polish dry using clean cloths, if necessary use stainless steel polish.
8  On completion of cleaning, operatives to dispose of all waste chemicals and materials on site. Remove all cleaning equipment, chemicals and signage to company vehicle.
9  Operatives are not to leave the site until authorised by Supervisor.
This Method Statement to be used only to underpin a Full Site Specific Method Statement
Ventilated Ceiling & Removable Ceiling Tile Cleaning
1  Operatives to check all PPE, cleaning equipment and chemicals required for the task. Refer to COSHH assessments supplied for chemicals being used. Operatives to set out all ‘Caution/Warning’ signage required prior to work commencing.
2  Operatives to check that any ceiling mounted, vent-axia type fans are turned off and controls isolated.
3  Operatives to secure the work area. Check client has arranged for gas and electric of equipment below is turned off. Ensure client has arranged for all gas pilot lights to be extinguished. Ensure all controls are isolated including air handling equipmen