A.O. Smith 400 - 2100 Installation & Operation Manual

A.O. Smith 400 - 2100 Installation & Operation Manual

Genesis water heater
Table of Contents

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WARNING:
If the information in these instructions is not
followed exactly, a fire or explosion may result causing property
damage, personal injury or death.
-- Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
-- 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 near by phone.
Follow the gas supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
-- Installation and service must be performed by a qualified
installer, service agency, or the gas supplier.
Installation & Operation Manual
Models: 400 - 2100
WARNING:
This manual supplies information for the
installation, operation, and servicing of the
appliance.
It is strongly recommended that
this manual and the Genesis Service Manual be
reviewed completely before proceeding with an
installation. Perform steps in the order given.
Failure to comply could result in severe personal
injury, death, or substantial property damage.
Save this manual for future reference.
GNS-I-S Rev A

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Summary of Contents for A.O. Smith 400 - 2100

  • Page 1 GNS-I-S Rev A Installation & Operation Manual Models: 400 - 2100 WARNING: If the information in these instructions is not followed exactly, a fire or explosion may result causing property damage, personal injury or death. -- Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.
  • Page 2: Table Of Contents

    Contents HAZARD DEFINITIONS ............ 2 6. STARTUP PLEASE READ BEFORE PROCEEDING ......3 Check for Gas Leaks ............41 SAFETY INFORMATION ........... 4 Check Thermostat Circuit(s) ..........41 THE GENESIS -- HOW IT WORKS........ 5-7 Check Vent and Air Piping ..........41 RATINGS ................
  • Page 3: Please Read Before Proceeding

    Installation & Operation Manual Please read before proceeding Special instructions  Apply enough water to the combustion chamber This is a gas appliance and should be installed NOTICE by a licensed electrician and/or certified gas lining to prevent airborne dust. supplier.
  • Page 4: Safety Information

    Installation & Operation Manual Please read before proceeding Safety information To minimize the possibility of serious Owner warning – WARNING personal injury, fire or damage to your The information contained in this manual is intended for use unit, never violate the following safety by qualified professional installers, service technicians, or gas rules.
  • Page 5: The Genesis - How It Works

    Installation & Operation Manual The Genesis - How it works... Heat exchanger 15. Air intake The heat exchanger allows system water to flow through Fresh air for combustion is drawn through a filter provided at the specially designed tubes for maximum heat transfer. The air intake, located at either the rear or right side of the appliance.
  • Page 6 Installation & Operation Manual The Genesis - How it works... IMG00570 IMG00571 Models 400 - 750 Rear View Models 400 - 750 Front View IMG00573 IMG00572 Models 400 - 750 Right Side (inside unit) Models 400 - 750 Left Side (inside unit)
  • Page 7 Installation & Operation Manual The Genesis - How it works... (continued) IMG00575 IMG00574 Models 1000 - 2100 Rear View Models 1000 - 2100 Front View IMG00577 IMG00576 Models 1000 - 2100 Left Side (inside unit) Models 1000 - 2100 Right Side (inside unit)
  • Page 8: Ratings

    Installation & Operation Manual Ratings Genesis Other Specifications AHRI Rating Gross Input Model Number AHRI Output Ratings Appliance Air / Vent Water, Water Water Sizes (Note 3) Content Connections Connections Gallons Note: N = Natural, P = Propane (Note 2) (Note 1) GWH0400(N,P) 2"...
  • Page 9: Determine Unit Location

    Installation & Operation Manual Determine unit location Location of unit Right Side 3" (7.5 cm) This unit meets the safe lighting performance criteria with Rear 3" (7.5 cm) (3" min. from any surface)* the gas manifold and control assembly provided, as specified Left Side 6"...
  • Page 10: Non-Combustible / Combustible Flooring

    Installation & Operation Manual Determine unit location Anytime the temperature of any sensor drops below 34°F, the Figure 1-2B_Drain the unit_Models 1000 - 2100 control turns on the pump contact. Location Locate indoor water heaters in a room having a temperature safely above freezing [32°F (0°C)].
  • Page 11 Installation & Operation Manual Determine unit location 2. Outside Combustion Air, Using Ducts You can direct outside combustion air to this unit using two air ducts to deliver the air to the equipment room (see FIG. 1-4). Each of the two openings must have a minimum free area of one square inch per 2000 Btu input (11cm per kW).
  • Page 12 Installation & Operation Manual Determine unit location All dimensions are based on net free area in square inches. Metal louvers or screens reduce the free area of a combustion air opening a minimum of approximately 25%. Check with louver manufacturers for exact net free area of louvers. Where two openings are provided, one must be within 12"...
  • Page 13 Installation & Operation Manual Determine unit location (continued) Exhaust fans Combustion air filter Any fan or equipment which exhausts air from the equipment This unit has a standard air filter located at the combustion air room may deplete the combustion air supply and/or cause a inlet.
  • Page 14: Venting

    Installation & Operation Manual Venting BEFORE YOU BEGIN Identify your appliance’s vent system: This manual covers venting requirements for CAT I models and CAT IV vent materials. Be sure to correctly identify the type of vent system your appliance requires before proceeding. GWH0400(N,P) Venting options: GWH0500(N,P)
  • Page 15: Vent System Options

    Installation & Operation Manual Venting (continued) Vent system options: (Note: Installations shown below are representative, actual installations may vary from those shown.) This option uses a vertical rooftop flue termination This option uses a powered vent assembly to with air supplied from the equipment room - see exhaust the flue products out a sidewall with air page 17.
  • Page 16: General Venting Information

    Installation & Operation Manual Venting General information You must supply adequate combustion and ventilation air to this unit. You must provide minimum clearances for the vent terminal from adjacent buildings, windows that open, and building openings. Follow all requirements set forth in the latest edition of the National Fuel Gas Code, ANSI Z223.1, in Canada, the latest edition of CAN/CGA Standard B149 Installation Code for Gas Burning Appliances and Equipment or applicable local building codes.
  • Page 17: Conventional Negative Draft Venting

    Installation & Operation Manual Venting (continued) Conventional negative draft venting - see page 15. Before installing a venting system, follow requirements found in the General Venting section. NOTICE This option uses Type-B double-wall flue outlet piping. The blower brings in combustion air. The buoyancy of the heated flue products cause them to rise up through the flue pipe.
  • Page 18: Vertical Vent Termination Clearances And Location

    Installation & Operation Manual Venting 4. Turn on clothes dryers and any other appliances not connected to the common venting system. Turn on any exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. 5.
  • Page 19 Installation & Operation Manual Venting (continued) Figure 2-2_Vent Termination from Peaked Roof - 10 ft. Figure 2-1_Vent Termination from Peaked Roof - 10 ft. or More From Ridge or Less From Ridge Vent terminations are not shown in FIG.’s 2-1 thru 2-4. Make sure all vertical vents are installed with vent NOTICE terminations recommended by the vent manufacturer.
  • Page 20: Vertical Vent/Ducted Air

    Installation & Operation Manual Venting Vertical Vent/Ducted Air - see page 15. Before installing a venting system, follow requirements found in the General Venting section. NOTICE The Vertical Vent/Ducted Air vent system is the same as the Conventional Negative Draft vent system, except it pulls combustion air from the outdoors through a separate air inlet pipe.
  • Page 21: Vertical Rooftop Air Inlet

    Installation & Operation Manual Venting (continued) To prevent recirculation of flue products from an adjacent vent cap into the combustion air inlet, follow all applicable clearance requirements in the latest edition of the National Fuel Gas Code and/or CAN/CGA-B149 Installation Code and instructions in the Installation and Operation Manual.
  • Page 22 Installation & Operation Manual Venting Only use a sidewall air inlet cap supplied by the appliance WARNING manufacturer or a rooftop air inlet cap supplied by either the vent or appliance manufacturer. Using any other air inlet cap for single unit installations or using a common air inlet cap for multiple units with insufficient free area and/or protections from wind and 12"...
  • Page 23: Sidewall/Power Venting

    Installation & Operation Manual Venting (continued) Sidewall venting - see page 15. Before installing a venting system, follow all requirements found in the General Venting NOTICE section. This option uses a powered vent assembly which pulls the flue products out of the stack. This fan generates a negative draft at the unit.
  • Page 24 Installation & Operation Manual Venting Terminate the venting system at least 3 feet (0.9m) above any forced air inlet within 10 feet (3.05m). Terminate the venting system at least 4 feet (1.2m) below, 4 feet (1.2m) beside, or 1 foot (30cm) above any door, window, or gravity air inlet into any building.
  • Page 25: Vent Termination

    Installation & Operation Manual Venting (continued) Do not combine the flue from this unit with the vent from any other appliance. Do not combine flues from WARNING multiple appliances into a common vent. The flue from this unit must be a dedicated stack. Connect the flue vent directly to the flue outlet opening on the top of the unit.
  • Page 26: Sidewall/Power Venting/Ducted Air

    Installation & Operation Manual Venting Horizontal Vent/Ducted Air venting (Powered Venting) - see page 15. Before installing a venting system, follow all requirements found in the General Venting section. NOTICE The Horizontal Vent/Ducted Air vent system is the same as the Sidewall Venting system, except it pulls combustion air from the outdoors through a sidewall air inlet.
  • Page 27: Direct Vent/Sealed Combustion

    Installation & Operation Manual Venting (continued) Direct Vent/Sealed Combustion - see page 15. Before installing a venting system, follow all requirements found in the General Venting section. NOTICE This option uses sealed AL29-4C vent materials for the flue outlet piping and separate combustion air inlet piping. This system terminates both the flue and combustion air inlet in the same pressure zone.
  • Page 28 Installation & Operation Manual Venting Masonry chimney installation Do not use a standard masonry chimney to directly vent the combustion products from this unit. To use a masonry chimney, the chimney must use a sealed, corrosion-resistant liner system. Sealed, corrosion-resistant liner systems (single-wall, double-wall, flexible, or rigid) must be rated for use with a high efficiency, positive pressure vent system.
  • Page 29 Installation & Operation Manual Venting (continued) Length of air inlet pipe The installed length of air inlet pipe from the unit to the outside air inlet cap must not exceed 50 equivalent feet (15.2m). Subtract 5 feet (1.5m) of equivalent length for each 90° elbow. Subtract 2.5 feet (0.7m) of equivalent length for each 45° elbow. Do not exceed the limits for the combustion air inlet piping lengths.
  • Page 30 Installation & Operation Manual Venting 2. For PVC, CPVC, ABS, dryer vent, or flex duct air inlet piping, use a silicone sealant to ensure a proper seal at the unit inlet and the air inlet cap. 3. For Dryer vent or flex duct, also use a screw-type clamp to attach the inlet vent material to the unit inlet and the air inlet cap. Properly sealing the air inlet pipe ensures that combustion air will be free of contaminates and supplied in proper volume.
  • Page 31: Outdoor Installation

    Installation & Operation Manual Venting (continued) Outdoor installation - see page 15. Before installing a venting system, follow all requirements found in the General Venting section. NOTICE Units are self-venting and can be used outdoors when installed with the optional outdoor cap. This cap mounts directly to the top of the unit and covers the flue outlet and combustion air inlet openings.
  • Page 32: Gas Connections

    Optional gas controls may require routing of bleeds and vents w.c. w.c. w.c. w.c. to the atmosphere, outside the building when required by local 400 - 2100 14.0 14.0 codes. Gas connection Manifold pressure: The gas regulator on the unit’s...
  • Page 33: Combination Gas Valves

    Installation & Operation Manual Gas connections (continued) 2. Use new, properly threaded black iron pipe free from TABLE 3B chips. If you use tubing, make sure the ends are cut SUGGESTED GAS PIPE SIZE FOR square, deburred and clean. Make all tubing bends smooth SINGLE UNIT INSTALLATIONS and without deformation.
  • Page 34: Checking Gas Supply Pressure

    Installation & Operation Manual Gas connections 13. Remove the manometer and related fitting from the “inlet” Combination gas valve/regulators equipped with integral vent side of the gas valve, replace 1/8" hex plug in gas valve and limiters are not required to have vent or relief lines piped to tighten.
  • Page 35: Water Connections

    Installation & Operation Manual Water connections Inlet and outlet connections Initial set-up of maximum water flow For ease of service, install unions on the water inlet and On initial start-up of the Genesis, the maximum water flow to water outlet of the unit. The connection to the unit marked the heat exchanger must be checked and manually limited with “Inlet”...
  • Page 36: Heating Unit Installations

    Installation & Operation Manual Water connections Water heater installations Example: The water heater inlet temperature is 140°F (60°C) and the water heater outlet temperature is 160°F (71.1°C). This Piping of the water heater system means that there is a 20°F (11.1°C) temperature rise across the Before beginning the installation, consult local codes for specific water heater.
  • Page 37 Installation & Operation Manual Water connections (continued) Pump minimum delta T (T) TABLE - 4A A pump minimum T feature is provided in addition to the MAXIMUM FLOW FOR HEATING WATER HEATER pump delay. After a call for heat, the unit will shut down and the pump will continue to run as long as the T is above the The maximum flow rate through the water heater with a preset value.
  • Page 38: Water Heater Operating Control Module

    Installation & Operation Manual Electrical connections Connecting to electrical supply ELECTRICAL SHOCK HAZARD – For your WARNING safety, turn off electrical power supply before This unit is wired for 120 VAC service. The unit, when making any electrical connections to avoid installed, must be electrically grounded in accordance with possible electric shock hazard.
  • Page 39: Electrical Connections

    Installation & Operation Manual Electrical connections Line voltage connections External EMS connection to terminal strip for stage firing control of burners 1. Connect 120 VAC power wiring to the line voltage terminal strip in the junction box, as shown in FIG. 5-2. This unit is equipped with a factory installed terminal strip 2.
  • Page 40: Remote Mounting Of Sensor

    Installation & Operation Manual Electrical connections Figure 5-4_Stand-alone operation Figure 5-8_Remote sensor for pump delay CONNECTION BOARD TANK FIELD SUPPLIED WIRING SENSOR TANK SENSOR INTERMITTENT TANK LIMITS SENSOR INTERMITTENT CONTINUOUS LIMITS LIMITS CONTINUOUS REQUIRED IN ORDER LIMITS 2 NO HIGH FIRE FOR PUMP DELAY TO 2 NO HIGH FIRE...
  • Page 41: Startup

    Installation & Operation Manual Start-up Filling hot water heater Check vent and air piping 1. Close the system’s drain valve by turning the handle Inspect vent piping and air piping for signs of deterioration clockwise. from corrosion, physical damage or sagging. Verify air piping 2.
  • Page 42: Start The Water Heater

    Installation & Operation Manual Start-up Start the water heater Read and follow the Lighting Instructions in FIG. 6-1, on page If water heater does not start correctly 1. Check for loose connections or service switch off? 2. Is external limit control (if used) open? Is water temperature above 200°F (93.3°C)? 3.
  • Page 43: Lighting Instructions

    Installation & Operation Manual Start-up (continued) Figure 6-1_Lighting Instructions FOR YOUR SAFETY READ BEFORE OPERATING WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance is equipped with an ignition If you cannot reach your gas supplier, device which automatically lights the burner.
  • Page 44: Operating Information

    Installation & Operation Manual Operating information General Freeze protection The controller monitors the inlet and outlet sensor. If either How the appliance operates sensor drops below 45°F (7.2°C), the pump will turn on to circulate water through the heat exchanger. The Genesis uses a copper finned tube heat exchanger to transfer heat from the flue products to the water.
  • Page 45: User Interface

    Installation & Operation Manual Operating information (continued) User interface The electronic controller has a Liquid Crystal Display (LCD) to supply information. The LCD allows for setup and monitoring of the unit. Three (3) buttons (“Select”, “+” & “-“) are provided for selecting and adjusting settings. Figure 7-1_User Interface Screen Adjust Menus...
  • Page 46: Powering Up The Control

    Installation & Operation Manual Operating information Powering up the control When the unit is turned on, the controller will power up and turn on all segments in the display for two (2) seconds. The software version is then displayed for two (2) seconds before the controller enters into the Normal Operating Mode. Figure 7-3_Powering Up the Controller Modes of operation (Mode) Mode 3 –...
  • Page 47: View Menus

    Installation & Operation Manual Operating information (continued) View menus Error and warnings Depending on the Mode and Access Level selected (User or Advanced), Depending upon the Mode and parameter settings the the following items may be view while the electronic controller is following error and/or warning messages may appear in powered up: the electronic controller display when a fault condition...
  • Page 48 Installation & Operation Manual Operating information Figure 7-7_View Menu - Mode 3 Figure 7-6_View Menu - Mode 2 REVIEW STANDALONE WATER HEATER MODE 2 EXTERNAL SEQUENCER MODE 3 SETTINGS Access by Access by Access by Access by Access by (Pressing & (Pressing &...
  • Page 49 Installation & Operation Manual Operating information (continued) Access menus TABLE - 7A ACCESSING MENUS VIEW MENUS ADJUST MENUS Press all three (3) buttons (Select, + Press and release SELECT button to and -) for three (3) seconds to enter advance View Menus. Adjustment Menus.
  • Page 50: Led Diagnostic Codes

    Installation & Operation Manual Operating information Figure 7-9_LED Diagnostic Codes Status LED Diagnostic Codes Status LED Diagnostic Codes Code Code Condition Lights Condition Sequence Sequence Operation for combustion air fan Constant Prepurge System OK, no faults present. before ignition on stages 1 and 2. Possible control fault, check power;...
  • Page 51: Hot Surface Ignition System

    Installation & Operation Manual Operating information (continued) Hot surface ignition system A soft-lockout condition will operate the combustion air fans for the post purge cycle and then the ignition module will pause for approximately five minutes. At the end of this timed pause, the Hot Surface Igniter and Ignition Control Module The 399,999 ignition module will attempt a new trial for ignition sequence.
  • Page 52: Domestic Water Heaters

    Installation & Operation Manual Domestic water heaters This section contains specific instructions for those appliances If higher flow rates are required through the water heater, an used to supply domestic hot water. All warnings, cautions, optional Cupro Nickel heat exchanger is available. Consult the notes and instructions in the general installation and operation factory for specific application requirements.
  • Page 53: Water Chemistry

    Installation & Operation Manual Domestic water heaters (continued) Water chemistry If the temperature rise is too high, the water velocity is too low, adjust as follows: Water temperature rise and maximum flow NOTICE data is based on heating potable water with 1.
  • Page 54: Typical Water Heater Piping W/Storage Tank(S)

    Installation & Operation Manual Domestic water heaters Figure 8-1_Typical Water Heater Piping with Storage Tank Please note that these illustrations are meant to show system piping concept only, the installer is responsible NOTICE for all equipment and detailing required by local codes.
  • Page 55 Installation & Operation Manual Domestic water heaters (continued) Figure 8-2_Single Water Heater Piping with Two Storage Tanks Please note that these illustrations are meant to show system piping concept only, the installer is responsible NOTICE for all equipment and detailing required by local codes.
  • Page 56: Multiple Water Heater Piping W/Storage Tank(S)

    Installation & Operation Manual Domestic water heaters Figure 8-3_Multiple Water Heater Piping with a Single Storage Tank Please note that these illustrations are meant to show system piping concept only, the installer is responsible NOTICE for all equipment and detailing required by local codes.
  • Page 57 Installation & Operation Manual Domestic water heaters (continued) Figure 8-4_Multiple Water Heater Piping with Multiple Storage Tanks Please note that these illustrations are meant to show system piping concept only, the installer is responsible NOTICE for all equipment and detailing required by local codes.
  • Page 58: Pump Operation

    Installation & Operation Manual Domestic water heaters The standard circulating pump on this water heater is sized TABLE 8C based on installation of a single storage tank and heater in close COMMON WATER MANIFOLD SIZE FOR proximity. If the number of fittings and straight pipe exceeds the specified maximum equivalent number of straight feet MULTIPLE WATER HEATER INSTALLATIONS for a specified diameter of pipe, non-warrantable operational...
  • Page 59: Minimum Water Temperatures (Domestic Hot Water)

    Installation & Operation Manual Domestic water heaters (continued) Thermostat adjustment procedure An appliance allowed to operate at return CAUTION temperatures below the specified minimum 1. Press all three (3) buttons (SELECT, +, -) simultaneously setting may experience problems with and hold for three (3) seconds. The Adjust menu will the operating controls, safety switches, appear in the controller display.
  • Page 60: Thermal Expansion

    Installation & Operation Manual Domestic water heaters Thermal expansion Location of Cold Water Supply Piping Connections Incorrect piping of the cold water supply to the system may result A relief valve that discharges periodically may be due to thermal in excessive low temperature operation causing condensate expansion in a closed system.
  • Page 61: Maintenance

    Installation & Operation Manual Maintenance Maintenance and annual startup Table 9A_Service and Maintenance Schedules Owner maintenance Service technician (see the Genesis User’s Information Manual for (see the following pages for instructions) instructions) • Check appliance area General: • Address reported problems •...
  • Page 62: Flue Vent System And Air Piping

    Installation & Operation Manual Maintenance Follow the service and maintenance procedures given throughout this manual and in component literature WARNING shipped with the appliance. Failure to perform the service and maintenance could result in damage to the appliance or system. Failure to follow the directions in this manual and component literature could result in severe personal injury, death, or substantial property damage.
  • Page 63: Check Control Settings

    Installation & Operation Manual Maintenance (continued) Check relief valve Inspect/replace hot surface igniter 1. Inspect the relief valve and lift the lever to verify flow. Before This unit uses a proven control module and a hot surface operating any relief valve, ensure that it is piped with its igniter.
  • Page 64: Check Burner Flame

    Installation & Operation Manual Maintenance Perform start-up and checks Check flue gas passageways 1. Start appliance and perform checks and tests specified Any sign of soot around the inner jacket, outer jacket, flue in Section 6 - Start-up of the Genesis Installation and pipe connections, burner or in the areas between the fins on Operation Manual.
  • Page 65: Review With Owner

    Installation & Operation Manual Maintenance (continued) Inspect and clean the heat exchanger While burners are removed, check the heat exchanger surface for sooting. If present, heat exchanger must be cleaned and problem corrected. Proceed as follows. Remove gas manifold(s)/orifice assemblies as described in steps 1 through 5 in Inspect and Clean Burner, page 64.
  • Page 66: Connection Diagram

    Installation & Operation Manual Connection diagram OUTLET SENSOR (continued) SILENCING ALARM SWITCH BELL INLET SENSOR OPERATOR 24VAC TD RLY 24VAC 24VCOM PR/BK 24V COM (-) 24V(+) 24VCOM 24VAC ALARM ALARM CONTACTS IN / OUT COM BL/W INLET SENSOR OUTLET SENSOR BR/W TANK SENSOR STAGE 2 OUT...
  • Page 67 Installation & Operation Manual Connection diagram (continued) LWCO LWCO DANGER RESET 24VAC CONNECTOR TO PREVENT ELECTRICAL SHOCK CHASSIS THIS HEATER MAY BE CONNECTED TO MORE THAN ONE BRANCH CIRCUIT . MORE THAN ONE GROUND DISCONNECT SWITCH MAY BE REQUIRED TO DE -ENERGIZE THE EQUIPMENT FOR SERVICING . O/BK TEST Notes:...
  • Page 68: Ladder Diagram

    Installation & Operation Manual Ladder diagram WHERE POSSIBLE, SW WARNING: THIS HEATER UTILITIES (GAS, 120 VAC CONNECTED TO THE U CONNECTED TO ONE OR MORE BRANCH CIRCUITS . GROUND LINE NEUTRAL 15AMPS MAY VARY FROM T TO PREVENT ELECTRICAL SHOCK , ENSURE ALL 60Hz DEPENDING UPON...
  • Page 69 Installation & Operation Manual Ladder diagram (continued) WITCHES ARE SHOWN WITHOUT PROVING LOUVER SWITCH WATER ELECTRICITY ) PROVING NIT. AS SUCH, SWITCH STATES THOSE SHOWN ON DIAGRAM TO POWER LOUVER WHETHER UTILITIES SOURCE CONTACTS T CONDITION IS PRESENT . SEE M FOR ADDITIONAL NOTES .
  • Page 70 Installation & Operation Manual Notes...
  • Page 71: Warranty

    Installation & Operation Manual Warranty LIMITED WARRANTY A. O. Smith Corporation, the warrantor, extends the following LIMITED WARRANTY to the owner of this water heater: If within FIVE years after initial installation of the water heater, a heat exchanger or gas burner shall prove upon examination by the warrantor to be defective in material or workmanship, the warrantor, at his option will exchange or repair such part or portion.
  • Page 72: Revision Notes

    Revision Notes: Revision A (ECO #C1XXXX) initial release. GNS-I-S Rev A 03/13...

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