Rheem XR90 Series Use and Care Manual - Page 7

Installing the water heater This water heater must be installed in accordance with these instructions, local codes, utility company requirements, and/or in the absence of local codes, use the latest edition of the American National Standard/National Fuel Gas Code. A copy can be purchased from either the American Gas Association, 400 N. Capitol Street NW, Washington, DC 20001 as ANSI standard Z223.1 or National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02269 as booklet NFPA 54. Location Combustion Air Inlet Openings The water heater should not be located in an area where leakage from the tank Rheem Water Heating FVIR certified gas water heaters can be installed on or connections will result in damage to a residential garage floor without the Max. the area adjacent to the heater or to lower use of an 18" stand in accordance with 2.75" floors of the structure. the National Fuel Gas Code, NFPA 54, Flammable Vapor Sensor Diameter of water heater When such areas cannot be avoided it is recommended that a suitable catch pan, adequately drained, must be installed under the water heater. The water heater must be centered in the catch pan. ANSI Z223.1 2006, paragraph 9.1.10 Installation in Residential Garages, unless otherwise directed by State and Local code requirements. The water heater must be located so it is not subject to physical damage, for example, by moving vehicles, area flooding etc. plus 2" min. The auxiliary catch pan installation MUST conform to local codes. The catch pan must not restrict air flow to the combustion air inlet openings (perforation openings) located around the lower perimeter of the water heater. Catch pan kits are available from the store ● Hot water lines should be insulated to conserve water and energy. ● The water heater and water lines should be protected from exposure to freezing temperatures. Notice: DO NOT allow the catch pan to obstuct the flammable vapor sensor. where the water heater was purchased, or any water heater distributor. Make certain the floor underneath the water heater is strong enough to ● Do not install the water heater in bathrooms, bedrooms, any occupied rooms normally kept closed, or in unprotected outdoor areas. sufficiently support the weight of the Notice: DO NOT allow the water heater once it is filled with water. ● Minimum clearance from combustible construction: flammable vapor sensor to A gas fired water heater or any other become submerged in water. appliance should not be installed Front Side Rear Top Make sure the catch pan is properly drained. in a space where liquids which give off flammable vapors are to be used or stored. Such liquids include gasoline, LP gas Closet & 3" 1" 0" 12" Alcove (7.6 cm) (2.5 cm) (0 cm) (30.5 cm) (butane or propane), paint or adhesives and their thinners, solvents or removers. If the clearances stated on the DO NOT block or obstruct any of the Instruction/Warning Label, located on combustion air inlet openings located the front of the heater differ, install the around the perimeter of the water heater. water heater according to the clearances A minimum of 1" is required between stated on the label. these combustion air inlet openings and any obstruction. ● If the water heater is installed in an alcove or closet, the entire floor must DO NOT obstruct or block the Flammable be covered by a wood or metal panel. ! WARNING: Combustible construction refers to adjacent walls and ceilings and should not be confused with combustible or flammable products and Vapor Sensor. Because of natural air movement in a room or other enclosed space, flammable vapors can be carried some distance from where liquids which give off flammable vapors are to be used or stored. The open A minimum of 24" clearance from the front and top should be available for adequate inspection and servicing. ● The water heater may be installed on combustible floors, but not directly on carpeting. If the water heater must be materials. Combustible flame of the water heater's pilot or main installed on carpeting, place a metal or and/or flammable products burner can ignite these vapors and create wood panel beneath the water heater, and materials should never a shut down condition of the water heater extending beyond its full width and be stored in the vicinity of which will not allow the water heater depth at least 3" in all directions. this or any gas appliance. to ignite until examined by a Qualified Service Technician. 7