Instruction/ maintenance manual of the product GN75ENSRSA GE
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1 49-50230-1 03-08 JR Installation Outdoor Tankless W ater Heat er Instructions Models GN75ENSRSA , GN94ENSRSA , GP94ENSRSA Questions? Call 888-HO T W TER (888.468.9837) or Visit our website at ge.com B E F O R E B E G I N N IN G I N S T A L LA TI O N Read these instructions completely and carefully.
Installation Instructions 2 SAFE TY PRECAUTIONS (cont .) W ARNING: Gasoline, as well as other flammable materials and liquids (adhesives, solvents, paint thinners, etc.
3 Installation Instructions T O OL S YO U WI LL N EE D • Pipe Wrenches (2) • Gloves • Adjustable Pliers • Safety Glasses • Screwdriv ers (2) • Wire Cutters M A TE RI AL S YO U WI LL N EE D.
DIMENSIONS GN75/GN94/GP94ENSRSA DIM. DESCRIPTION IN. (MM) A Width 14 (355.6) B Depth 9 13 ⁄ 16 (249.5) C Height – Unit 22 7 ⁄ 8 (582) D Height – with brackets 25 3 ⁄ 8 (646.
5 Installation Instructions FL UE TERMINAL CLE ARANCES U .S . INST ALLA TIONS CLE ARANCES PER REF DESCRIPTION ANSI Z21.10.3 A Clearance above grade, veranda, por ch, deck or snowline 36 inches (91 cm).
6 Installation Instructions FL UE TERMINAL CLE ARANCES (ANSI Z21.10.3 • CSA 4.3) F IX ED CLOSED O PERABLE FIXED CLOSED O PERABLE B B B A J B I M C F B B E D L G A H K VENT TERMINAL A IR SUPPLY INLET AREA W HERE T ERMINAL IS NOT P ERMITTED ADDITIONAL CLE ARANCES – VENT TERMINAL Local codes supersede these clearances.
Installation Instructions 7 PL ANNING FOR PL UMBING (shown with optional pipe cover) The center of the pipes can be placed anywhere within the shaded area. The center of the pipes is recommended to be pr otruding only within 6 ″ of the mounting wall.
Installation Instructions 8 M OU N T IN G T H E W A T ER H EA TE R ( co n t .) I dentify the installation location and confirm that the installation will meet all requir ed clearances.
M OU N T IN G T H E W A T ER H EA TE R ( co n t .) ON MASONRY OR CEMENT W ALL: Mount 4 wall anchors (not supplied) suitable to carry 200 lbs minimum tensile load each. Level the unit during installation. IMP OR T ANT: Anchors suitable for masonry or concrete ar e to be supplied by the installer .
GAS PIPING ( co n t .) PIPE SIZING PROCEDURE The gas supply to the home must be capable of handling the entire gas load of the home, calculated by adding the BTU rating of each gas appliance in the home. State and local codes must be met , as well as utility requir ements, to ensure gas supply to the unit is adequate to meet the rated demand.
Installation Instructions 11 CONNECTING THE W A TER HE A TER T O THE GAS SUPPL Y 2 Connect the gas supply to the system following state and local plumbing codes. Use the supplied ball valve at the inlet to the system. Make sur e the gas supply line to the water heater fits in the diagram shown on page 7.
12 Installation Instructions WA TER PIPING GENERAL INSTRUCTIONS • The water supply should be shut off while connecting the water heater . Make sure the water inlet and outlet lines to the water heater fit in the diagram shown on page 7.
13 Installation Instructions CONNECTING THE W A TER HE A TER T O THE W A TER SUPPL Y Water connections to the tankless water heater should follow all state and local plumbing codes. If this is a standard installation, r efer to the diagram on the following page under RECOMMENDED PIPING FOR BASIC INST ALLA TION.
14 Installation Instructions RECOMMENDED PIPING FOR BASIC INST ALL A TION This is not an engineered drawing; it is intended only as a guide and not as a replacement for professionally engineer ed project drawings.
FREEZE PROTECTION FOR EX TERNAL PIPING IMP OR T ANT! With electrical power supplied to the water heater , it will not freeze in environments as cold as -30°F , when protected fr om direct wind exposure. In the event of a power failure at temperat ures below freezing, the w ater heater should be drained of all water to pre vent freezing damage.
Installation Instructions ELECTRICAL CONNECTION INFORMA TION W ARNING – To r educe the risk of fire, electrical shock and personal injury: The water heater must be electrically gr ounded in accordance with local codes and or dinances or , in the absence of local codes, in accordance with the NA TIONAL ELECTRICAL CODE, ANSI/NFP A NO.
CASCADING MUL TIPLE W A TER HE A TERS The Dual Connect Cable Kit (AG TDC1) is an optional accessory that connects 2 water heaters and allows them to function as one hot water sour ce.
REMO TE CONTROLLER INST ALL A TION LOCA TION • The controller should be out of reach of small children. • Avoid locations where the controller may become hot (near the oven or radiant heater). • Avoid locations in direct sunlight . The digital display may be difficult to read in dir ect sunlight .
R EM O T E C ON T R O L LE R I N ST A LL A T I O N (c o nt . ) MOUNTING THE CONTROLLER (cont .) T h r ea d th e ca bl e th ro ug h th e ac ce ss h ol e at t he b as e o f t h e u n i t a nd c on ne ct t he w ir e s to t he c on tr ol le r t e r m i na ls o n th e bo tt om r ig ht - h a n d s id e of t he P CB .
20 Installation Instructions TECHNICAL DA T A PRESSURE DROP CURVE OUTLET FLOW DA T A GN 75 GN 94/ GP9 4 GN 75 GN 94/ GP9 4.
L ADDER DIA GRAM 21 Installation Instructions.
22 Notes.
23 Notes.
24 Notes.
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If you already are a holder of GE GN75ENSRSA, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime GE GN75ENSRSA.
However, one of the most important roles played by the user manual is to help in solving problems with GE GN75ENSRSA. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device GE GN75ENSRSA along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
