Ge GN75DNSRSA User Manual

149-50229-1 03-08 JRInstallationIndoor Direct Vent Tankless Water HeaterInstructionsModels GN75DNSRSA, GN94DNSRSA, GP94DNSRSAQuestions? Call 888.HOTWT

10Installation InstructionsCORROSIVE ATMOSPHERESNOTICE: The water heater or intake air supplyshould not be installed near an air supplycontaining halo

MOUNTING THE WATER HEATER (cont.)FINISHED WALLS (Drywall) Option 1:Mount boards over drywall directly to studsin the wall. When attaching the unit to

12Installation InstructionsGAS PIPING (cont.)PIPE SIZING PROCEDUREThe gas supply to the home must be capableof handling the entire gas load of the hom

13Installation InstructionsCONNECTING THE WATER HEATERTO THE GAS SUPPLY2Connect the gas supply to the system followingstate and local plumbing codes.

14Installation InstructionsWATER PIPINGGENERAL INSTRUCTIONS• The water supply should be shut off whileconnecting the water heater. Make sure thewater

15Installation InstructionsCONNECTING THE WATER HEATERTO THE WATER SUPPLYWater connections to the tankless water heatershould follow all state and loc

16Installation InstructionsRECOMMENDED PIPING FOR BASIC INSTALLATIONThis is not an engineered drawing; it is intendedonly as a guide and not as a repl

FREEZE PROTECTIONFOR EXTERNAL PIPINGIMPORTANT!With electrical power supplied to the waterheater, it will not freeze in environments ascold as -30°F, w

18Installation InstructionsELECTRICAL CONNECTIONINFORMATIONWARNING – To reduce the riskof fire, electrical shock and personal injury:• Do not use an e

19Installation InstructionsVENTING INSTRUCTIONS (cont.)MAXIMUM VENT LENGTHMaximum System performance is achievedat a vent length of 21 equivalent feet

Installation Instructions2SAFETY PRECAUTIONS (cont.)WARNING: Do not use substitutematerials. Use only parts certified with theappliance.• This applian

20Installation InstructionsVENTING INSTRUCTIONS(cont.)VENT PRODUCTSUbbinkTelephone: 888.HOTWTER(888.468.9837)Heat-FabTelephone: 1.800.772.0739Web Site

21Installation InstructionsHIGH ALTITUDE INSTALLATIONSSet dip switches 2 and 3 to the values shown in thetable below for your altitude. The default se

22Installation InstructionsREMOTE CONTROLLER INSTALLATIONLOCATION• The controller shouldbe out of reach of smallchildren.• Avoid locations wherethe co

CLEANING THE INLET FILTERIt is imperative thatcontrol compartments,burners and circulatingair passageways of theappliance be kept clean.CAUTION: Befor

24Installation InstructionsTECHNICAL DATAPRESSURE DROP CURVEOUTLET FLOW DATAGN75GN94/GP94GN75GN94/GP94

LADDER DIAGRAM25Installation Instructions

26Notes

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3Installation InstructionsTOOLS YOU WILL NEED• Pipe Wrenches (2) • Gloves• Adjustable Pliers • Safety Glasses• Screwdrivers (2)• Wire CuttersMATERIALS

4Installation InstructionsDIMENSIONS*This is the minimum dimension from the wall. The wall bracket is adjustable to allow an additional 1.57 inches (4

5Installation InstructionsPLANNING FOR VENTINGINTAKE/EXHAUST GUIDELINESRefer to the specific instructions on your ventproduct for additional installat

FLUE TERMINAL CLEARANCES (ANSI Z21.10.3 • CSA 4.3)6Installation InstructionsFLUE TERMINAL CLEARANCESU.S. INSTALLATIONSCLEARANCES PERREF DESCRIPTION AN

7Installation InstructionsADDITIONAL CLEARANCES – VENT TERMINALThese clearances are applicable to both concentric terminations and nonconcentric vent

Installation Instructions8FLUE INSTALLATION – CONDENSATE DRAINHORIZONTAL TERMINATION WITH VERTICAL TERMINATION (condensate collectorA CONDENSATE DRAIN

Installation Instructions9PLANNING FOR PLUMBING(shown with optional pipe cover)The center of the pipes can be placed anywherewithin the shaded area. T