Raypak 2600401 Installation & Operating Instructions Manual

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8INSTALLATIONCode RequirementsInstallation must be in accordance with local codes, or,in the absence of local codes, with the latest editionsof the National Fuel Gas Code, ANSI Z223.1,/NFPA54, and the National Electrical Code, ANSI/NFPA 70.In Canada installations must conform with the currentCAN/CSA B149 and the Canadian Electrical CodePart 1 CSA C22.2 No.1.Where required by the authority having jurisdiction, theinstallation must conform to American Society ofMechanical Engineers Safety Code for Controls andSafety Devices for Automatically Fired Heaters, CSD-1.Mounting BaseThis heater should be mounted on a level, non-com-bustible surface. Heater must not be installed oncarpeting. This heater can be installed on a com-bustible surface only when the appropriate listed floorshield base is provided. An optional listed floor shieldbase is available for factory installation with the heateron all indoor models.In addition, the heater shall be installed such that thegas ignition system components are protected fromwater (dripping, spraying, rain, etc.) during applianceoperation and service (circulator replacement, controlreplacement, etc.).ClearancesCombustion & Ventilation Air(Indoor models only)NOTE: The heater should be located in an areawhere water leakage will not result in damage to thearea adjacent to the appliance or to the structure.When such locations cannot be avoided, it isrecommended that a suitable drain pan, adequatelydrained, be installed under the appliance. The panmust not restrict air flow.Heater SideMinimum Distancefrom CombustibleSurfacesFloor Combustible*Front Alcove**Back 12 in.Right 12 in.Left 12 in.Top (Indoor) 39 in.Top (Outdoor) UnobstructedFlue Vent 6 in.*Except for carpeted flooring, heaters are certified for installation oncombustible floors, when equipped with listed floor shield base.**A front clearance of at least 24 in. is recommended for adequateservice of burner-tray and controls.Table C: Minimum Clearances from CombustibleSurfacesWARNING: Air supply to the heater room must notbe affected by mechanical exhaust vents located inother parts of the house, such as kitchen orbathroom fans, or attic blowers. Mechanical exhaustvents may create a negative pressure condition inthe heater room that can become a hazard ofasphyxiation, explosion or fire.CAUTION: Combustion air must not becontaminated by corrosive chemical fumes whichcan damage the heater. Measures must be taken toprevent the entry of corrosive chemical fumes to thecombustion and ventilation air supply. Suchchemicals include, but are not limited to, chlorinatedand/or fluorinated hydrocarbons such as found inrefrigerants, aerosol propellants, dry-cleaning fluids,degreasers, and paint removers. Other harmfulelements may come from bleaches, air fresheners,or mastics. Vapors from these types of products canform corrosive acid compounds when burned in agas flame. The resulting acid condensate candamage or substantially reduce the life of the heater.It may be necessary to provide outside air directly tothe heater in order to avoid this problem.