Rheem Versa Heaters Operating Instructions - Page 8

INSTALLATION Installation Codes Installations must be in accordance with local, state, provincial, and national codes, laws, regulations and ordinances. In the absence of local codes, installations must be in accordance with the latest editions of the: • National Fuel Gas Code, ANSI Z223.1/NFPA 54 • National Electrical Code, ANSI/NFPA 70 • For Canada only: CAN/CSA-B149 Installation Code (B149) and CSA C22.1 C.E.C. Part 1 and Part 2 Clearances less than these may require removal of the heater to service either the heat exchanger or the burner tray. In either case, the heater must be installed in a manner that will enable the heater to be serviced without removing any structure around the heater. Base Installation Heater must be mounted on a level base, such as cementable slab, cement blocks or another non-combustible surface. An alternate method for providing a base for combustible floors is illustrated. Heaters may not be installed on carpeting. NOTE: The heater should not be located in an area where possible water leakage will result in damage to the area adjacent to the heater or to the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, with adequate drainage, be installed under the heater. The pan must not restrict combustion air flow. 12" Minimum HEATER 12" Minimum Clearances The required minimum clearances from combustible surfaces are shown in Table C below. Heater Side Outdoor Installations Indoor Installations Top* Unobstructed 42 in. Front 6 in. Alcove Vent N/A 6 in. Back 12 in. 12 in. Right Side 6 in. 6 in. Left Side 6 in. 6 in. *Clearance from top of vent terminal. Table C: Required Minimum Clearances from Combustible Surfaces. When installed according to the listed minimum clearances from combustible construction, the pool heater can be serviced without removing permanent construction around the heater. However for ease of servicing, we recommend a clearance of at least 24" in the front, and at least 18" on the rear. This will enable the heater to be serviced in its installed location, that is, without movement or removal of the heater. 4" Minimum Sheet Metal 24 Gauge Hollow concrete cinder block, align holes and leave ends open. Fig. 3: Alternate Method for Providing a NonCombustible Base Outdoor Installation NOTE: This heater is design-certified for outdoor installation when equipped with the approved top(s) for outdoor use. WARNING: The heater should not be located in an area where water sprinklers, or other devices, may cause water to spray through the cabinet louvers and into the heater. this could cause internal rusting or damage electrical components, and void the warranty. WARNING: Do not install within 3 feet of a heat pump or an outdoor condensing unit. strong air intake from this type of equipment can disturb the combustion process and cause damage or personal injury 8