HVAC System care and duct cleaning
19 Village hill lane, Natick
november 4, 2021
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HVAC system care and duct cleaning. One air handler unit cleaned. Supply and Return main trunks and associated ductwork and registers were mechanically cleaned with rotating brushes (whips). Compressed air was then blown through the system and all debris was captured in a Nikro 5000cfm HEPA negative air machine. A significant amount of debris was found in the return vents, main trunk and return plenum. No biological growth to be reported inside the system.The unit had humidity and moisture levels well within accepted tolerances.
Two air leaks in the air handler were repaired. Exposed insulation on the return vents in the smaller bedroom were sealed to avoid insulation being introduced into the system. It is also recommended that a filter be installed in the return vent in the living room as there were large deposits of debris deposited in the return vent.
Fans, Vents & Registers: Vents and registers were removed in order to accessed ductwork for manual cleaning. Registers were summarily cleaned and replaced in a pre-recorded order.
Main Trunks: Supply and return trunks were found to be sealed and was cleared of a significant amount of debris. Unit was free of both moisture and biological contaminants.
Ductwork: Duct connections were found intact. Smaller bedroom was lacking heat, technicians fabricated a damper to balance heat. The home space was left sealed and intact. Ductwork contained a significant amount of debris, and was cleared. Access points were used in the ductwork to attach a Nikro 5,000 CFM HEPA negative air machine. Interior of ductwork was cleaned using mechanically rotating brushes and a 20' flexible cable with a 8" nylon brush (whip).