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M1305.1.1 Furnaces and Air Handlers
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Furnaces and air handlers within compartments or alcoves shall have a minimum working space clearance of 3 inches (76 mm) along the sides, back and top with a total width of the enclosing space being at least 12 inches (305 mm) wider than the furnace or air handler. Furnaces having a firebox open to the atmosphere shall have at least a 6-inch (152 mm) working space along the front combustion chamber side. Combustion air openings at the rear or side of the compartment shall comply with the requirements of Chapter 17.
Exception: This section shall not apply to replacement appliances installed in existing compartments and alcoves where the working space clearances are in accordance with the equipment or appliance manufacturer's installation instructions.
Related Code Sections
M1305.1.1 General Mechanical System Requirements, Furnaces and Air Handlers
Furnaces and air handlers within compartments or alcoves shall have a minimum working space clearance of 3 inches (76 mm) along the sides, back ...
2014 FBC - Residential, 5th edition > 13 General Mechanical System Requirements > M1305 Appliance Access > M1305.1 Appliance Access for Inspection Service, Repair and Replacement > M1305.1.1 Furnaces and Air Handlers
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Furnaces and air handlers within compartments or alcoves shall have a minimum working space clearance of 3 inches (76 mm) along the sides, back ...
2017 FBC - Residential, 6th edition > 13 General Mechanical System Requirements > M1305 Appliance Access > M1305.1 Appliance Access for Inspection Service, Repair and Replacement > M1305.1.1 Furnaces and Air Handlers
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Furnaces and air handlers within compartments or alcoves shall have a minimum working space clearance of 3 inches (76 mm) along the sides, back ...
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Furnaces and air handlers within compartments or alcoves shall have a minimum ...
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Air handlers shall have a manufacturer's designation for an air leakage of no more than 2 percent of the design air flow rate when tested ...
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