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Hersteller: Empire Products Dateigröße: 3.9 mb Dateiname: Unterrichtssprache:

Installing a New Main Gas Cock Each appliance should have its own manual gas cock. A manual main gas cock should be located in the vicinity of the unit. Where none exists, or where its size or location is not ad equate, contact your local authorized installer for installation or relocation. Compounds used on threaded joints of gas piping shall be resistant to the action of liquefied petroleum gases. The gas lines must be checked for leaks by the installer. This should be done with a soap solution watching for bubbles on all exposed connections, and if unexposed, a pressure test should be made. Never use an exposed flame to check for leaks. Appliance must be disconnected from piping at inlet of control valve and pipe capped or plugged for pressure test. Never pressure test with appliance connected; control valve will sustain damage! A gas valve and ground joint union should be installed in the gas line upstream of the gas control to aid in servicing. It is required by the National Fuel Gas Code that a drip line be installed near the gas inlet. This should consist of a vertical length of pipe tee connected into the gas line that is capped on the bottom in which condensation and foreign particles may collect. Figure 1 The use of the following gas connectors is recommended: — ANSZ21.24ApplianceConnectorsofCorrugatedMetalTubing and Fittings — ANS Z21.45 Assembled Flexible Appliance Connectors of Other Than All-Metal Construction The above connectors may be used if acceptable by the authority havingjurisdiction.ThestateofMassachusettsrequiresthataflexible appliance connector cannot exceed three feet in length. Pressure Testing of the Gas Supply System 1. To check the inlet pressure to the gas valve, a 1/8" (3.175mm) N.P.T. plugged tapping, accessible for test gauge connection, must be placed immediately upstream of the gas supply connection to the appliance. 2. The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa). 3. The appliance must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa). Attention! If one of the procedures results in pressures in excess of 1/2 psig (14" w.c.) (3.5 kPa) on the appliance gas valve, it will result in a hazardous condition. Checking Manifold Pressure Both Propane and Natural gas valves have a built-in pressure regulator in the gas valve. Natural gas models will have a manifold pressure of approximately 3.5" w.c. (.871kPa) at the valve outlet with the inlet pressure to the valve from a minimum of 4.5" w.c. (1.120kPa) for the purpose of input adjustment to a maximum of 10.5" w.c. (2.614kPa) Propane gas models will have a manifold pressure approximately 10.0" w.c. (2.49kPa) at the valve outlet with the inlet pressure to the valve from a minimum of 11.0" w.c. (2.739kPa) for the purpose of input adjustment to a maximum of 13.0" w.c. (3.237kPa). A1/8" (3.175mm) N.P.T. plugged tapping, accessible for test gauge connection, is located on the outlet side of the gas control. 12425-10-1008 Page 7 CLEARANCES 1. In selecting a location for installation, it is necessary to provide NOTE: Minimum distance of 1 1/2" (38mm) must also be adequate accessibility clearances for servicing and proper maintained from top surface of carpeting, tile, etc. installation. 2. Clearancestocombustiblesurfacesare4"(102mm)fromsides, 12" (305mm) to top, 1 1/2" (38mm) from floor. VENTILATION AND COMBUSTION AIR Wall furnaces shall be installed in a location in which the facilities for ventilation permit satisfactory combustion of gas and proper venting under normal conditions. In buildings of conventional frame, brick, or stone construction without tight storm windows and doors, infiltration is normally adequate to provide air for combustion and draft hood dilution. Where appliances are installed in confined and unconfined spaces withinabuilding,thebuildingbeingofunusuallytightconstruction, air for combustion and ventilation must be obtained directly from outdoors or from such spaces that freely communicate with the outdoors. Under these conditions, the confined and unconfined spaces shall be provided with two permanent openings, one near the top of the enclosure and one near the bottom; each opening shall have a free area of not less than one square inch (6.45cm2) per 2,000 BTU (.6KW/H) per hour of total input. LOCATION - ALL MODELS Select a location near the center of the space to be heated. Overflow heat will circulate through doorways into adjacent rooms. For large homes or spread-out floor plans, two or more furnaces are recommended. Do not locate furnace where a door could swing over the outer casing, or where circulation could be retarded by furniture or cabinets. Do not install in a closet, alcove or small hallway wh...

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