GE GP94DNSRSA, GN75DNSRSA, GN94DNSRSA User Manual

Installation

Indoor Direct Vent Tankless Water Heater

Models GN75DNSRSA, GN94DNSRSA, GP94DNSRSA

Instructions

FOR INDOOR APPLICATIONS ONLY

Questions? Call 888.HOTWTER (888.468.9837) or Visit our website at ge.com

WARNING: Read entire manual. Failure to follow all guides and rules could cause personal

injury or property damage.

• Check with your state and/or local public works department for plumbing codes. You must follow their guides as you install the Water Heater.

NOTE: Failure to comply with these installation instructions will void the product warranty, and the installer will be responsible for any service, repair or damages caused thereby.

BEFORE BEGINNING INSTALLATION

Read these instructions completely and carefully.

•

IMPORTANT — Save these instructions

for local inspector’s use.

•

IMPORTANT — Observe all governing

codes and ordinances.

• Note to Installer – Be sure to leave these instructions with the Consumer.

• Note to Consumer – Keep these instructions for future reference.

• Proper installation is the responsibility of the installer.

• Product failure due to improper installation is not covered under the Warranty.

Recognize this symbol as an indication of Important Safety Information!

49-50229-1 03-08 JR

SAFETY PRECAUTIONS

WARNING: If the information in these

instructions is not followed exactly, a fire or explosion may result, causing property damage, personal injury or death.

FOR YOUR SAFETY!

– Do not store or use gasoline or other

flammable vapors or liquids or other combustible materials in the vicinity of this or any other appliance. To do so may result in an explosion or fire.

– WHAT TO DO IF YOU SMELL GAS

• Do not try to light any appliance.

• Do not touch any electrical switch; do not use any phone in your building.

• Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

• If you cannot reach your gas supplier, call the fire department.

• Do not return to your home until authorized by the gas supplier or fire department.

– Improper installation, adjustment, alteration,

service or maintenance can cause property damage, personal injury or death. Refer to this manual. Installation and service must be performed by a qualified installer, service agency or the gas supplier.

• This water heater must be vented outdoors using approved ducting materials.

• Service information and wiring diagram are located behind front panel.

• Service must be performed by a qualified service agency.

• This appliance must be properly grounded and installed as described in these instructions

Installation Instructions

DANGER

Read and follow water heater warnings and instructions. If owner’s manual is missing, contact the retailer or manufacturer.

SAFETY PRECAUTIONS (cont.)

WARNING: Do not use substitute

materials. Use only parts certified with the appliance.

• This appliance must be installed, inspected and leak tested by a state- or city-qualified licensed contractor. It is the responsibility of the person having the water heater installed to ensure the installing contractor has proper licenses and permits for installing water heaters in your location. GE highly recommends that installers attend a product knowledge class to ensure customer satisfaction and warranty coverage. Failure to comply with state and local codes pertaining to water heater installations may void the warranty.

SAFETY PRECAUTIONS (cont.)

The flow of combustion and ventilation air shall

• not be obstructed.

• This appliance is not suitable for use in an application such as a pool or spa heater that uses chemically treated water. (This appliance is suitable for filling large or whirlpool bath tubs with potable water.)

• If a water heater is installed in a closed-water supply system, such as one having a backflow preventer in the cold water supply line, means shall be provided to control thermal expansion. Contact the water supplier or local plumbing inspector on how to control this situation.

• Should overheating occur or the gas supply fail to shut off, turn off the manual gas control valve to the appliance.

• Keep the air intake (at the flue terminal external to the home) location free of chemicals, such as chlorine or bleach, that produce fumes. These fumes can damage components and reduce the life of your appliance.

• This appliance is not to be installed outdoors.

• The installation must conform with local codes or, in the absence of local codes, with the National

Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code, CSA B149.1.

• The appliance and its appliance main gas valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psi (3.5 kPa) (13.84 in W.C.).

• The appliance must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psi (3.5 kPa) (13.84 in W.C.).

• Carefully follow the venting instructions beginning on page 19 and in the Maintenance section in the Owner’s Manual for adequate combustion and ventilation air.

• The appliance should be located in an area where water leakage of the unit or connections will not result in damage to the area adjacent to the appliance or to lower floors of the structure. When such locations cannot be avoided, it is recommended that a suitable drain pan, adequately drained, be installed under the appliance. The pan must not restrict combustion airflow.

CAUTION:DO NOT operate the water

heater if any part of the appliance has been under water.

CAUTION:BURN HAZARD. Hot exhaust

and vent may cause serious burns. Keep back from water heater unit. Keep small children and animals away from unit.

CAUTION:Hot Water outlet pipes leaving

unit can be hot to touch. Insulation must be used for hot water pipes below 36″ due to burn risk to children.

WARNING: This unit is not intended

or qualified for use in manufactured homes, mobile homes or recreational vehicles.

Installation Instructions

PARTS PROVIDED

ocate the parts packed with the Water Heater.

Gas Valve 3/4″ FNPT Ball Valve

4 #10 x 11⁄4″ Wood Screws

TOOLS YOU WILL NEED

• Pipe Wrenches (2) • Gloves

• Adjustable Pliers • Safety Glasses

• Screwdrivers (2)

• Wire Cutters

MATERIALS YOU WILL NEED TO SUPPLY

• Soap Solution • Pipe Fittings Required:

• Pipe Compound – Unions

• Approved Venting – Ball Valves

• 5/8″ ID PVC Flexible – Drain Valves Tubing

• 2 Conductor 22 AWG Wire for Remote Control

• Single Gang Electrical Box

• Wire Nuts

• Concrete Wall Anchors (Optional)

Your installation components may vary.

– Pressure Relief Valve

OTHER TOOLS THAT MIGHT BE REQUIRED

• Hammer Drill with Concrete Bits

• Saw

• Threading Machine with Heads and Oiler

• Core Drill with Diamond Head

• Torch Set

• Copper Tubing Cutter

• Steel Pipe Cutter

OTHER MATERIALS THAT MIGHT BE NEEDED

• Heat Tape

• Pipe Insulation

• Electrical Wire and Conduit per Local Code

• Air Inlet Screen

• Optional Pipe Cover AGTPCM

• Optional Remote Controller AGTRC1

DIMENSIONS

Installation Instructions

GN75/GN94/GP94DNSRSA

DIM. DESCRIPTION IN. (MM)

A Width 14 (355.6)

B Depth 95⁄8 (244.5)*

C Height – Unit 227⁄8 (582)

D Height – with brackets 251⁄2 (647.7)

E Hot Water Outlet – from wall 35⁄8 (91)*

F Hot Water Outlet – from center 45⁄16 (110)

G Cold Water Inlet – from wall 213⁄16 (70)*

H Cold Water Inlet – from center 11⁄8 (27)

I Gas Connection – from wall 37⁄8 (99)*

J Gas Connection – from center 31⁄2 (89)

From base to gas connection 15⁄8 (40)

K From base to cold connection 2 (50)

From base to hot connection 1

*This is the minimum dimension from the wall. The wall bracket is adjustable to allow an additional 1.57 inches (40 mm).

⁄8 (41)

PLANNING FOR VENTING

INTAKE/EXHAUST GUIDELINES

Installation Instructions

Refer to the specific instructions on your vent product for additional installation requirements.

• This water heater is a direct vent water heater and therefore is certified and listed with the vent system. You must use vent components that are certified and listed with the water heater model. See approved venting list on page 20.

• Do not combine vent components from different manufacturers.

• The vent system must vent directly to the outside of the building and use outside air for combustion.

• Every vent connection must be accessible for inspection, cleaning and replacement.

• Avoid dips or sags in horizontal vent runs by installing supports per the vent manufacturer’s instructions.

• Support horizontal vent runs every four feet and all vertical vent runs every six feet or in accordance with local codes.

• Venting should be as direct as possible with a minimum number of pipe fittings.

• Vent diameter must not be reduced.

• Do not connect the venting system with an existing vent or chimney.

• Do not connect vent with the vent pipe of any other water heater or appliance.

• Vent connections must be firmly pressed together so that the gaskets form an air-tight seal.

• The vent piece connected to the water heater must be secured with one self-tapping screw.

• Refer to the vent pipe manufacturer’s instructions for component assembly instructions.

• It is recommended to install an optional inlet screen to minimize blockage and maintenance from debris. See page 20.

Installation Instructions

FLUE TERMINAL CLEARANCES

U.S. INSTALLATIONS

CLEARANCES PER

REF DESCRIPTION ANSI Z21.10.3

A Clearance above grade, veranda, porch, deck or snowline 36 inches (91 cm) B Clearance to window or door that may be opened 12 inches (30 cm) C D Vertical clearance to ventilated soffit, located above the terminal within *

E Clearance to unventilated soffit * F Clearance to outside corner * G Clearance to inside corner * H Clearance to each side of center line extended above meter/regulator *

I Clearance to service regulator vent outlet *

J Clearance to nonmechanical air supply inlet to building or 12 inches (30 cm)

K Clearance to a mechanical air supply inlet 3 feet (91 cm) above

L Clearance above paved sidewalk or paved driveway located on public property

M Clearance under veranda, porch, deck or balcony

*For clearances not specified in ANSIZ223.1/NFPA 54, clearances are in accordance with local installation codes and the requirements of the gas supplier.

Clearanceto opposite wall is 24 inches (60 cm). 1 A vent shallnot terminate directly above a sidewalk or paved driveway that is located between two single family dwellings and serves both dwellings. 2 Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.

Clearance to permanently closed window *

a horizontal distance of 2 feet (61 cm) from the center line of the terminal

assembly

the combustion air inlet to any other appliance

if within 10 feet

(3 m) horizontally

FLUE TERMINAL CLEARANCES (ANSI Z21.10.3 • CSA 4.3)

Installation Instructions

ADDITIONAL CLEARANCES – VENT TERMINAL

hese clearances are applicable to both concentric terminations and nonconcentric vent exhaust terminations.

Local codes supersede these clearances.

• Avoid termination locations near a dryer vent.

• Avoid termination locations near commercial cooking exhaust.

Installation Instructions

3 in (75 mm) minimum

FLUE INSTALLATION – CONDENSATE DRAIN

HORIZONTAL TERMINATION WITH VERTICAL TERMINATION (condensate collector A CONDENSATE DRAIN required in all installations)

PLANNING FOR PLUMBING

shown with optional pipe cover)

(

Installation Instructions

Unit

Optional Pipe Cover (AGTPCM) shown shaded. Pipe cover not required, However, consideration should be taken in the design of the rough plumbing to allow installation of unit and pipe cover.

61⁄2″

18″ min.

21⁄2″

6″

Floor

97⁄8″

21⁄2″

Water through the wall

9″

The center of the pipes can be placed anywhere within the shaded area. The center of the pipes is recommended to be protruding only within 6″ of the mounting wall. Other specific installations may be different.

Be sure that the minimum elevation of the bottom of the unit is 16″ to meet the 36″ recommended clearance for the exhaust.

CAUTION: BURN HAZARD. Hot exhaust and

vent may cause serious burns. Keep back from water heater unit. Keep small children and animals away from unit.

7″

41⁄2″

Gas

12″

33⁄8″

21⁄2″

12″

Suggested area for Water and Gas lines to come through the wall so the optional pipe cover can be installed, if desired.

Water and Gas from below

CAUTION:Hot Water outlet pipes leaving unit

can be hot to touch. Insulation must be used for hot water pipes below 36″ due to burn risk to children.

NOTE: It is recommended to install the bottom of the unit at least 18″ off the ground to minimize blockage and maintenance from debris and provide room for the optional Pipe Cover Accessory Model Number AGTPCM.

NOTE: Do not install electrical outlet directly below unit. Electrical outlet must be installed less than 6 feet from unit.

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