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Instruções de Operação Sterling, Modelo TUBULAR GAS FIRED DIRECT SPARK PROPELLER UNIT HEATERS GG-120

Fabricante : Sterling
Arquivo Tamanho: 3.32 mb
Arquivo Nome :
Língua de Ensino: en
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For unit installations in U.S.A. above 2,000 ft. (610m), the unit input must be derated 4% for each 1,000 ft. (305m) above sea level; refer to local codes, or in absence of local codes, refer to the latest edition of the National Fuel Gas Code, ANSI Standard Z223.1 (N.F.P.A. No. 54), (also refer to Table 6). 4 5 Figure 2 - Dimensional Drawing – Tubular 30 thru 120 Propeller Unit Heater DIMENSIONS .XXX STANDARD UNITS DIMENSIONS IN PARENTHESIS (XXX) MILLIMETERS INSTALLATION Do not install unit heaters in AIR FOR COMBUSTION: The unit heater shall be corrosive or flammable atmospheres! Premature installed in a location in which the facilities for ventilation failure of, or severe damage to the unit will permit satisfactory combustion of gas, proper venting, result!and the maintenance of ambient air at safe limits under normal conditions of use. The unit heater shall Avoid locations where extreme be located in such a manner as not to interfere with drafts can affect burner operation. Unit heaters must not be installed in locations where air for combustion would contain chlorinated, halogenated or acidic vapors. If located in such an environment, premature failure of the unit will occur! Since the unit is equipped with an automatic gas ignition system, the unit heater must be installed such that the gas ignition control system is not directly exposed to water spray, rain or dripping water. NOTICE: Location of unit heaters is related directly to the selection of sizes. Basic rules are as follows: MOUNTING HEIGHT: If the unit heater is installed in a garage, it must be installed with a minimum clearance above the floor of 18 inches (457mm). AIR DISTRIBUTION: Direct air towards areas of maximum heat loss. When multiple heaters are involved, circulation of air around the perimeter is recommended where heated air flows along exposed walls. Satisfactory results can also be obtained where multiple heaters are located toward the center of the area with heated air directed toward the outside walls. Be careful to avoid all obstacles and obstructions which could impede the warm air distribution patterns. Unit heaters should not be installed to maintain low temperatures and/or freeze protection of buildings. A minimum of 50°F (10°C) thermostat setting must be maintained. If unit heaters are operated to maintain lower than 50°F (10°C), hot flue gases are cooled inside the heat exchanger to a point where water vapor (a flue gas by-product) condenses onto the heat exchanger walls.The result is a mildly corrosive acid that prematurely corrodes the aluminized heat exchanger and can actually drip water down from the unit heater onto floor surface. Additional unit heaters should be installed if a minimum 50°F (10°C) thermostat setting cannot be maintained. Should overheating occur, or the gas supply fail to shut off, shut off the manual gas valve to the appliance before shutting off the electrical supply. Do not use this appliance if any part has been under water. Immediately call a qualified service technician to inspect the appliance and replace any gas control which has been underwater. proper circulation of air within the confi ned space. When buildings are so tight that normal infiltration does not meet air requirements, outside air shall be introduced per Sections 1.3.4.2 and 1.3.4.3 of ANSI Z223.1 for combustion requirements. A permanent opening or openings having a total free area of not less than one square inch per 5,000 BTU/Hr (1.5 kW) of total input rating of all appliances within the space shall be provided. NOTICE: Unit Heater sizing should be based on heat loss calculations where the unit heater output equals or exceeds heat loss. CLEARANCES: Each Gas Unit Heater shall be located with respect to building construction and other equipment so as to permit access to the Unit Heater. Clearance between vertical walls and the vertical sides of the Unit Heater shall be no less than 1 inch (25.4mm). However, to ensure access to the control box and fan, a minimum of 18" (457mm) is required for the fan, and control box side. A minimum clearance of 1 inch (25.4mm) must be maintained between the top of the Unit Heater and the ceiling. The bottom of the Unit Heater must be no less than 1 inch (25.4mm) from any combustible. The distance between the flue collector and any combustible must be no less than 1 inch (25.4mm). Also see AIR FOR COMBUSTION and VENTING sections. NOTICE: Increasing the clearance distances may be necessary if there is a possibility of distortion or discoloration of adjacent materials. MOUNTING: The Unit Heater may be mounted with the vent outlet, gas and electrical connections to the right or left of the air moving fan. The Unit Heater is shipped with the connections to the right of the fan when looking in the direction of the air flow. If connections to the right are required, remove hanger brackets from face of unit and attach as pictured in Figure 3. If connections to the left are required, invert the heate...

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