By International Code Council
For the most up-tp-date mechanical codes that deal with the layout and install of the most up-tp-date mechanical platforms, use the 2009 foreign Mechanical Code. Designed to supply complete rules for mechanical structures and kit, it comprises assurance of HVAC, exhaust structures, chimneys and vents, ducts, home equipment, boilers, water warmers, fridges, hydronic piping, and sun structures. This worthwhile reference makes use of prescriptive- and function- comparable provisions to set up minimal rules for various structures.
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Additional resources for 2009 International Mechanical Code: Softcover Version
3 Cutting, notching and boring holes in nonstructural cold-formed steel wall framing. Flanges and lips of nonstructural cold-formed steel wall studs shall not be cut or notched. Holes in webs of nonstructural cold-formed steel wall studs shall be permitted along the centerline of the web of the framing member, shall not exceed 11/ 2 inches (38 mm) in width or 4 inches (102 mm) in length, and shall not be spaced less than 24 inches (610 mm) center to center from another hole or less than 10 inches (254 mm) from the bearing end.
Refrigerants for which there is evidence of toxicity at concentrations below 400 ppm, based on data used to determine TLV-TWA or consistent indices. TRANSITION FITTINGS, PLASTIC TO STEEL. An adapter for joining plastic pipe to steel pipe. The purpose of this fitting is to provide a permanent, pressure-tight connection between two materials which cannot be joined directly one to another. UNIT HEATER. A self-contained appliance of the fan type, designed for the delivery of warm air directly into the space in which the appliance is located.
Appliances shall not be located in a hazardous location unless listed and approved for the specific installation. 3 Prohibited locations. Fuel-fired appliances shall not be located in, or obtain combustion air from, any of the following rooms or spaces: 1. Sleeping rooms. 2. Bathrooms. 3. Toilet rooms. 4. Storage closets. 5. Surgical rooms. Exception: This section shall not apply to the following appliances: 1. Direct-vent appliances that obtain all combustion air directly from the outdoors. 2.