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Instruções de Operação A.O. Smith, Modelo HW-120M

Fabricante : A.O. Smith
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WARNING THERE IS A RISK IN USING FUEL BURNING APPLIANCES SUCH AS HEATERS IN ROOMS OR AREAS WHERE GASOLINE, OTHER FLAMMABLE LIQUIDS OR ENGINE DRIVEN EQUIPMENT OR VEHICLES ARE STORED, OPERATED OR REPAIRED. FLAMMABLE VAPORS ARE HEAVY AND TRAVEL ALONG THE FLOOR AND MAY BE IGNITED BY THE IGNITER OR MAIN BURNER FLAMES CAUSING FIRE OR EXPLOSION. SOME LOCAL CODES PERMIT OPERATION OF GAS APPLIANCES IN SUCH AREAS IF THEY ARE INSTALLED 18 INCHES OR MORE ABOVE THE FLOOR. THIS MAY REDUCE THE RISK IF LOCATION IN SUCH AN AREA CANNOT BE AVOIDED. WARNING FLAMMABLE ITEMS, PRESSURIZED CONTAINERS OR ANY OTHER POTENTIAL FIRE HAZARDOUS ARTICLES MUST NEVER BE PLACED ON OR ADJACENT TO THE HEATER. OPEN CONTAINERS OF FLAMMABLE MATERIAL SHOULD NOT BE STORED OR USED IN THE SAME ROOM WITH THE HEATER. For appliance installation in locations with elevations above 2,000 feet (600M), refer to HIGH ALTITUDE INSTALLATIONS section of this manual for input reduction procedure. INSTALLATION CLEARANCES These units are approved for installation in an alcove having minimum clearances from combustible construction of 44" (1,118mm) from top of the jacket, 6" (152.4mm) from sides, and 6" (152.4mm) from rear and vent connections. All models may be installed on combustible flooring. DO NOT INSTALL THIS WATER HEATER DIRECTLY ON A CARPETED FLOOR. A FIRE HAZARD MAY RESULT. Instead the water heater must be placed on a metal or wood panel extending beyond the full width and depth by at least 3 inches (76.2mm) in any direction. If the heater is installed in a carpeted alcove, the entire floor shall be covered by the panel. Also, see the DRAIN REQUIREMENTS. It is recommended that at least 24" (610mm) be provided on the left side and front of the unit for accessibility and proper servicing. In a utility room installation, the door shall be wide enough to allow the heater to enter or to permit the replacement of another appliance. LEVELLING Each unit should be checked after installation to be certain that it is level. If the unit is not level, obtain and insert metal shims under the base ring of the unit to correct this condition. AIR REQUIREMENTS WARNING FOR SAFE OPERATION AN AMPLE SUPPLY OF AIR MUST BE PROVIDED FOR PROPER COMBUSTION AND VENTILATION. AN INSUFFICIENT SUPPLY OF AIR WILL RESULT IN A YELLOW/LUMINOUS BURNER FLAME, CAUSING CARBONING OR SOOTING OF THE FINNED HEAT EXCHANGER AND CREATING A RISK OF ASPHYXIATION. DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATION AIR. UNCONFINED SPACE In buildings of conventional frame, brick, or stone construction, unconfined spaces may provide adequate air for combustion, ventilation and draft hood dilution. If the unconfined space is within a building of tight construction (buildings using the following construction: weather stripping, heavy insulation, caulking, vapor barrier, etc.), air for combustion, ventilation, and draft hood dilution must be obtained from outdoors. The installation instructions for confined spaces in tightly constructed buildings must be followed to ensure adequate air supply. 8 CONFINED SPACE When drawing combustion and dilution air from inside a conventionally constructed building to a confined space, such a space shall be provided with two permanent openings, ONE IN OR WITHIN 12 INCHES (30.5cm) OF THE ENCLOSURE BOTTOM. Each opening shall have a free area of at least one square inch per 1000 Btuh (2,225mm2/Kw)of the total input of all appliances in the enclosure, but not less than 100 square inches (645 square cm). If the confined space is within a building of tight construction, air for combustion, ventilation and draft hood dilution must be obtained from outdoors. When directly communicating with the outdoors or communicating with the outdoors through vertical ducts, two permanent openings, located in the above manner, shall be provided. Each opening shall have a free area of not less than one square inch per 4000 Btuh (8,900mm2/Kw) of the total input of all appliances in the enclosure. If horizontal ducts are used, each opening shall have a free area of not less than one square inch per 2000 Btuh (4,450mm2/Kw) of the total input of all appliances in the enclosure. For Canadian installations consult CAN/CGA B149. Where an exhaust fan is installed in the same room with a heater, sufficient openings for air must be provided in the walls. UNDERSIZED OPENINGS WILL CAUSE AIR TO BE DRAWN INTO THE ROOM THROUGH THE CHIMNEY, CAUSING POOR COMBUSTION. SOOTING MAY RESULT AND RISK OF ASPHYXIATION WILL OCCUR. VENTING WARNING THE INSTRUCTIONS IN THIS SECTION ON VENTING THE HEATER MUST BE FOLLOWED TO AVOID CHOKED COMBUSTION OR RECIRCULATION OF FLUE GASES. SUCH CONDITIONS CAUSE SOOTING OR RISKS OF FIRE AND ASPHYXIATION. In the United States: Vent sizing, installation and termination shall be in accordance with the NATIONAL FUEL GAS CODE. ANSI Z223.1-1999 or most recent edition. In Canada: With Canadian Installation Code CAN/CGA B149 (latest edition) Type B venting may be used with these heaters. All loc...