INSTALLATION feet (2.4m) above the floor in shops, offices and other sections of the hangar where aircraft are not stored or housed. Refer to current ANSI/NFPA No. 409, Aircraft Hangars. In Canada, installation is suitable in aircraft hangars when acceptable to the enforcing authorities Do not install unit heaters in corrosive or flammable atmospheres! Premature failure of, or severe damage to the unit will result! Avoid locations where extreme drafts can affect burner operation.
INSTALLATION (continued) Make certain that the lifting methods used to lift the heater and the method of suspension used in the field installation of the heater are capable of uniformly supporting the weight of the heater at all times. Failure to heed this warning may result in property damage or personal injury! Unit heaters should not be installed to maintain low temperatures and/or freeze protection of buildings. A minimum of 50F (10C) thermostat setting must be maintained.
Sterling QVF 100 Installation Instructions
VENTING FOR POWER VENTED (CATEGORY III) UNIT HEATERS The venting system for these appliances shall terminate at least four feet (1.2m) below, four feet (1.2m) horizontal from, or one foot (0.3m) above any door, window, or gravity air inlet into any building. All unit heaters must be vented! All venting installations shall be in accordance with the latest edition of Part 7, venting of Equipment of the National Fuel Gas Code, ANSI Z223.
VENTING (continued) Use single wall pipe constructed of 26 gauge galvanized steel or material of equivalent durability and corrosion resistance for the vent system. For installation in Canada, use pipe constructed from 0.025 inch thick aluminum or 0.018 inch thick stainless steel. Insulate single wall vent pipe exposed to cold air or running through unheated areas.
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