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Фрагмент инструкции
This results in the greatest heater comfort and may result in lower gas bills. LOCAL CODES Install and use heater with care. Follow all local codes. In the absence of local codes, use the latest edition of National Fuel Gas Code ANSZ223.1, also known as NFPA 54*. *Available from: American National Standards Institute, Inc. 1430 Broadway New York, NY 10018 National Fire Protection Association, Inc. Batterymarch Park Quincy, MA 02269 UNPACKING 1. Remove heater from carton. 2. Remove all protective packaging applied to heater for shipment. 3. Check heater for any shipping damage. If heater is damaged, promptly inform dealer where you bought heater. Figure1-Vent-Free Natural Gas Heater Water vaporis a by-product of gas combustion.Anunvented room heater productes approximately one (1) ounce (30ml) of wter for every 1,000 BTU’s (.3KW’s) of gas input per hour. Unvented room heaters are remommended as supplemental heat (a room) rather than a primary heatsource (an entire house) .In most supplemental heatapplication, the water vapor does not create a problem. In most applications, the water vapor enhances the lowhumidity atmosphere experience during cold weather. WATER VAPOR: A BY-PRODUCT OF UNVENTED ROOM HEATERS The following steps will help insure that water vapordoes not become a problem. 1. Be sure the heater is sized properly for theapplication, including ample combusion air andcirculation air. 2. If high humidity is experienced, a dehumidifier maybe used to help lower the water vapor content of theair. 3. Do not use an unvented room heater as the primaryheat source. 4 FRESH AIR FOR COMBUSTION AND VENTILATION PROVIDING ADEQUATE VENTILATION The following are excerpts from National Fuel Gas Code. NFPA 54/ANS Z223.1, Section 5.3. Air for Combustion and Ventilation. All spaces in homes fall into one of the three following ventilation classifications: 1. Unusually Tight Construction 2. Unconfined Space 3. Confined Space The information on pages 4 through 6 will help you classify your space and provide adequate ventilation. WARNING: This heater shall not be installed in a confined space or unusually tight construction unless provisions are provided for adequate combustion and ventilation air. R ead the f o llo w in g in s tr u c t io ns to insure proper fresh air for this and other fuel-burning appliances in your home. Confined and Unconfined Space The National Fuel Gas Code ANS Z223.1 defines a confined space as a space whose volume is less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space and an unconfined space as a space whose volume is not less than 50 cubic feet per 1,000 Btu per hour (4.8 m3 per kw) of the aggregate input rating of all appliances installed in that space. Rooms communicating directly with the space in which the appliances are installed*, through openings not furnished with doors, are considered a part of the unconfined space. This heater shall not be installed in a confined space or unusually tigh t c on stru ction un less provisions are provided for adequate combustion and ventilation air. * A d j o in in g ro o m s a re communicating only if there are do orless passageways or ventilation grills between them. WARNING: If the area in which the heater may be operated is smaller than that defined as an unconfined space or if the building is of unusually tight construction, provide adequate combustion and ventilation air by one of the methods described in the National Fuel Gas Coda, ANS Z223.1, Section 5.3 or applicable local codes. Unusually Tight Construction The air that leaks around doors and windows may provide enough fresh air for combustion and ventilation. However, in buildings of unusually tight construction, you must provide additional fresh air. Unusually tight construction is defined as construction where: a. walls and ceilings exposed to the outside atmosphere have a continuous water vapor retarder with a rating of one perm (6.10-11 kg per pa-sec-m2) or less with openings gasketed or sealed and b. weather stripping has been added on openable windows and doors and c. caulking or sealants are applied to areas such as joints around window and door frames, between sole plates and floors, between wall-ceiling joints, between wall panels, at penetrations for plumbing, electrical, and gas lines, and at other openings. If your home meets all of the three criteria above, you must provide additional fresh air. See Ventilation Air From Outdoors, pages 5 and 6. If your home does not meet all of the three criteria above, see Determining Fresh-Air Flow for Heater Location, page 4, 5 DETERMINING FRESH-AIR FLOW FOR HEATER LOCATION Determining if you Have a Confined or Unconfined Space* Use this worksheet to determine if you have a confined or unconfined space. Space: Includes the room in which you will install heater plus any adjoining rooms with doorless passageways or ventilation grills between the rooms. 1. Determine t...
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