Raypak MVB 504A Installation & Operating Manual

Raypak MVB 504A Installation & Operating Manual Manual pdf 8 page image

Equipment BaseThe heater should be mounted on a level, structurallysound surface. The heater is approved for installationon a combustible surface but must NEVER beinstalled on carpeting. Gas-fueled equipment installedin enclosed parking garages must be located at least18 in. above the floor.In addition, the heater shall be installed such that thegas ignition system components are protected fromwater (dripping, spraying, rain, etc.) during applianceoperation or service (circulator replacement, controlreplacement, etc.).If the heater needs to be secured to the ground, usethe hole pattern shown in Fig. 5, following local codes.Additional clearance may be required when using thefactory anchor bracket.ClearancesIndoor InstallationsWhen installed according to the listed minimum clear-ances from combustible construction, these heaterscan still be serviced without removing permanentstructural construction around the heater. However, forease of servicing, a clearance of at least 24 in. in front,1 in. on the side, at least 24 in. on the rear and 10 in.above the top of the heater is required. This will allow8Table C: Clearances – Indoor InstallationsINSTALLATIONInstallation CodesInstallations must follow these codes:• Local, state, provincial, and national codes, laws,regulations and ordinances• National Fuel Gas Code, ANSI Z223.1/NFPA 54 –latest edition (NFGC)• National Electrical Code, ANSI/NFPA 70 - latestedition (NEC)• Standard for Controls and Safety Devices forAutomatically Fired Boilers, ANSI/ASME CSD-1,(CSD-1) when required• For Canada only: CAN/CSA B149 Natural Gasand Propane Installation Code and CSA C22.1C.E.C. Part 1 (C22.1)CAUTION: This heater should be located in anarea where water leakage will not result in damageto the area adjacent to the appliances or to thestructure. When such locations cannot be avoided, itis recommended that a suitable catch pan,adequately drained, be installed under theappliance. The pan must not restrict air flow.Fig. 5: Anchor Hole LocationsHeaterSideMinimum Clearancefrom CombustibleSurfacesMinimumServiceClearanceFloor* 0” 0”Rear 12” 24”Right Side 1” 1”Left Side 1” 1”Top 0” 10”Front Open 24”Vent 1” 1”*DO NOT install on carpeting.