American Water Heater 316888-004 Installation And Operating Manual

Hybrid gas water heaters power vent gas models
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Installation and Operating Manual
HYBRID GAS WATER HEATERS
POWER VENT GAS MODELS
www.americanwaterheater.com
ANSI Z21.10.3b-2008

For Your Safety

AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS
PURCHASED.
KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE
WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED.
0710
316888-004 Rev. 00

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Summary of Contents for American Water Heater 316888-004

  • Page 1: For Your Safety

    ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED. KEEP THIS MANUAL IN THE POCKET ON HEATER FOR FUTURE REFERENCE WHENEVER MAINTENANCE ADJUSTMENT OR SERVICE IS REQUIRED. 0710 316888-004 Rev. 00...
  • Page 2: Table Of Contents

    SAFE INSTALLATION, USE AND SERVICE GENERAL SAFETY INTRODUCTION Get To Know Your Water Heater - Gas Models..8 Replacement Parts And Deliming Products ..8 INSTALLATION CONSIDERATIONS Rough In Dimensions ......9 Water Piping - Mixing Valve Usage .
  • Page 3: Safe Installation, Use And Service

    SAFE INSTALLATION, USE AND SERVICE Your safety and the safety of others is extremely important in the installation, use and servicing of this water heater. Many safety-related messages and instructions have been provided in this manual and on your own water heater to warn you and others of a potential injury hazard.
  • Page 4: General Safety

    GENERAL SAFETY www.americanwaterheater.com...
  • Page 5 WARNING Breathing Hazard - Carbon Monoxide Gas • Install vent system In accordance with codes. • Do not operate water heater if flood damaged. • Special Consideration must be taken with installations above 11,000' (3,352m) for standard models. • Do not operate if soot buildup is present. •...
  • Page 6: Introduction

    Thank You for purchasing this water heater. Properly installed and maintained, it should give you years of trouble free service. Abbreviations Found In This Instruction Manual: • CSA - Canadian Standards Association • ANSI - American National Standards Institute • NFPA - National Fire Protection Association •...
  • Page 7 www.americanwaterheater.com...
  • Page 8: Get To Know Your Water Heater - Gas Models

    GET TO KNOW YOUR WATER HEATER - GAS MODELS A Mixing Valve*** B Hot Water Outlet (Tempered)*** C Pipe Insulation*** D Inlet Water Shutoff Valve*** E Cold Water Inlet*** F Expansion Tank*** G Vent Termination Elbow** H Access Door (Heat Engine) I Earthquake Strap*** J Power Cord* K Main Manual Gas Shutoff Valve***...
  • Page 9: Installation Considerations

    INSTALLATION CONSIDERATIONS ROUGH IN DIMENSIONS Top View Left Side View FIGURE 2 Capacity, Gas and Electrical Characteristics Model Approx. Capacity Input Gas Supply Pressure Manifold Pressure Electrical Characteristics Type U.S. Gals. Litres BTU/hr Max. Min. in. WC (kPa) Volts/Hz Amperes in.
  • Page 10 INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS For all side wall terminated, horizontally vented power vent, gas fueled water heaters installed in every dwelling, building or structure used in whole or in part for residential purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be satisfied: INSTALLATION OF CARBON MONOXIDE DETECTORS At the time of installation of the side wall horizontal vented gas fueled...
  • Page 11: Water Piping - Mixing Valve Usage

    WATER PIPING - MIXING VALVE USAGE TEMPERED POTABLE WATER DRAIN VALVE This appliance has been design certifi ed as complying with ANSI Z21.10.3/CSA 4.3 (latest revision) for water heaters and is considered suitable for: Water (Potable) Heating: All models are considered suitable for water (potable) heating.
  • Page 12: Facts To Consider About Location

    groups or if there is a local code or state law requiring a certain temperature water at the hot water tap, then you must take special precautions. In addition to using the lowest possible temperature setting that satisfi es your hot water needs, a means such as a Mixing Valve, should be used at the hot water taps used by these people or at the water heater (see Figure 3).
  • Page 13: Handle Installation

    HANDLE INSTALLATION For ease of handling and carrying, plugs are provided in the side of the shroud that can be removed and pipe handles inserted (see Figure 4). • Remove plastic plugs from shroud side panels. • Screw a short length of 3/4” NPT pipe into the sides of the water heater.
  • Page 14: Earthquake Zones

    When installing the heater, consideration must be given to proper location. Location selected should be as close to the wall as practicable and as centralized with the water piping system as possible. FIGURE 5 Minimum clearances between the water heater and combustible construction are 0 in.
  • Page 15 Screws Casing (Front) FIGURE 7 Screws FIGURE 8 Screws After the heater has been positioned and the earthquake straps have been installed, re-assemble the shroud in the reverse order. www.americanwaterheater.com FIGURE 9...
  • Page 16: Combustion Air And Ventilation

    COMBUSTION AIR AND VENTILATION A gas water heater cannot operate properly without the correct amount of air for combustion. Do not install in a confi ned area such as a closet, unless you provide air as shown in the “Facts to Consider About Location” section. Never obstruct the fl...
  • Page 17 FIGURE 11 B. ALL AIR FROM OUTDOORS: (See Figures 12, 13 and The confi ned space should be provided with two permanent openings, one commencing within 12 in. (30cm) of the top and one commencing within 12 in. (30cm) from the bottom of the enclosure.
  • Page 18: Chemical Vapor Corrosion

    6. Louvers and Grilles: In calculating free area, consideration should be given to the blocking effect of louvers, grilles or screens protecting openings. Screens used should not be smaller than 1/4 in. (0.64cm) mesh. If the free area through a design of louver or grille is known, it should be used in calculating the size opening required to provide the free area specifi...
  • Page 19: Hard Water

    limited warranty. Thermal expansion can also cause intermittent temperature-pressure relief valve operation: water discharged from the valve due to excessive pressure build up. The temperature-pressure relief valve is not intended for the constant relief of thermal expansion. This condition is not covered under the limited warranty. A properly-sized thermal expansion tank should be installed on all closed systems to control the harmful effects of thermal expansion.
  • Page 20 The temperature-pressure relief valve must be installed directly into the fi tting of the water heater designed for the relief valve. Must terminate a maximum of 6 in. (15cm) above a fl oor drain or external to the building. In cold climates, it is recommended that the discharge pipe be terminated at an adequate drain inside the building.
  • Page 21: Gas Piping

    GAS PIPING Make sure gas supplied is same type listed on model rating plate. The inlet gas pressure must not exceed 14 in. WC (3.5 kPa) for natural and propane gas (L.P.). The minimum inlet gas pressure shown on rating plate is that which will permit fi...
  • Page 22: Gas Line Purging

    a sediment trap) must be incorporated in the piping. The drip leg must be readily accessible. Install in accordance with the “Gas Piping” section. Refer to the current edition of the National Fuel Gas Code (ANSI Z223.1/NFPA 54). GAS LINE PURGING Air may be present in the gas lines and could prevent the burner from lighting on initial start-up.
  • Page 23: Vent Pipe Termination

    VENT PIPE TERMINATION NOT RECOMMENDED: STREET ELBOW BACK TO BACK ELBOWS 90° SHORT SWEEP ELBOW (MORE RESTRICTIVE) FIGURE 19 VENT LENGTH LESS THAN OR VENT LENGTH GREATER THAN 20 EQUAL TO 20 EQUIVALENT FEET EQUIVALENT FEET (6.1m) USE THIS (6.1m) USE THIS SCREEN. FIGURE 20 The fi...
  • Page 24 NOTE: VENT PIPE MUST BE SUPPORTED EVERY 4 ft. (1.2m). TO PREVENT VIBRATION, USE ISOLATION PADS WHEN ATTACHING STRAPS TO FLOOR JOISTS, WALLS OR CEILINGS. TERMINATION ELBOW RODENT SCREEN (INSTALL INTO Example for calculating equivalent feet. ELBOW) Section “A” ..0.5 ft. . . (0.15m) 90°...
  • Page 25: Condensate

    CONDENSATE This water heater is a condensing unit and requires a drain to be located in close proximity to allow the condensate to drain safely. The condensate drains from the unit at the exhaust tee located at the bottom of the unit (see Figure 22).
  • Page 26: Sequence Of Installations

    SEQUENCE OF INSTALLATIONS Cut a length of PVC pipe about 3.5 in. (9cm) longer than the wall thickness at the opening. Glue the vent terminal to this section of pipe. Slide the wall plate over the pipe to stop against the vent terminal. Place a bead of caulking (not supplied) around the gap between the pipe and cover plate.
  • Page 27: Installation Of Vent System, Sidewall

    6 in. (15 cm) MIN. LENGTH ATTACH 45° TERMINATION ELBOW RODENT SCREEN (INSTALL 12 in. INTO SEALANT (30 cm) min. ELBOW) GROUND LEVEL* * WHERE SNOW COVER IS NORMAL DURING WINTER, ENSURE SUFFICIENT VENT CLEARANCE TO PREVENT BLOCKAGE OR ICE BUILDUP. FIGURE 25 INSTALLATION OF VENT SYSTEM, SIDEWALL With the route of the venting system and selection of...
  • Page 28: Vent Pipe Preparation

    FIGURE 28 3 in. (7.6cm) MIN. LENGTH A VENT USED IN A SPECIAL 18 in. VENTING SYSTEM WITH POSITIVE (45cm) VENT PRESSURE AND PASSING T H R O U G H A R O O F S H A L L EXTEND AT LEAST 450mm (18 in.) ABOVE THE HIGHEST POINT WHERE IT PASSES THROUGH...
  • Page 29 PRIMER It is recommended that Tetrahydrofuran (THF) be used to prepare the surfaces of pipe and fi ttings for solvent welding. Do not use water, rags, gasoline or any other substitutes for cleaning PVC or CPVC surfaces. A chemical cleaner such as MEK may be used. CEMENT The cement should be a bodied cement of approximately 500 to 1600 centipoise viscosity containing 10-20% (by...
  • Page 30: Connection To Vent Pipe

    D. Inspection, cleaning, priming Visually inspect the inside of the pipe and fi tting sockets and remove all dirt, grease or moisture with a clean dry rag. If wiping fails to clean the surfaces, a chemical cleaner must be used. Check for possible damage such as splits or cracks and replace if necessary.
  • Page 31 WARNING VENT HOOD(S) MAY BE EXTREMELY HOT DURING OPERATION. FIGURE 31 CAUTION TO PREVENT EXHAUSTING PRODUCTS FROM CIRCULATING TO THE AIR INTAKE IN WINDY/COLD AREAS, THE MAXIMUM PRACTICAL DISTANCE BETWEEN THESE TWO TERMINALS IS RECOMMENDED. www.americanwaterheater.com...
  • Page 32: Electrical Connections

    ELECTRICAL CONNECTIONS The water heater must be connected to a properly grounded electrical branch circuit. A dedicated circuit is preferred. Do not use a GFI outlet. Refer to the rating plate attached to the water heater to determine the electrical requirements for the heater. Ensure the circuit provided is correct for these requirements.
  • Page 33: Operating Instructions

    OPERATING INSTRUCTIONS DISPLAY PANEL STANDBY-ON/OFF MODE BUTTON Changing the Standby Status When the Standby Button is pressed, the Status changes to normal operation and all the LEDs on the display will light up for a period of 1 second to verify operation. The button can toggle the status between Normal operation and Standby.
  • Page 34 Numeric Display Numeric information such as temperature set-point, maintenance codes and error codes are displayed using a large yellow LED display. Up and Down Buttons Two buttons (with “Up” and “Down” arrows) are used for adjusting the data on the display. Other secondary functions such as turning the Key Lock “Off”, are described in other sections.
  • Page 35: Wiring Diagram

    WIRING DIAGRAM BROWN YELLOW BLUE BLUE YELLOW YELLOW GREEN ORANGE ORANGE WHITE WHITE BLACK BLUE BROWN BLUE GREY YELLOW BLACK GREY GREY BLUE BLUE BLACK BLACK FIGURE 34 www.americanwaterheater.com BLUE BLUE...
  • Page 36: Lighting Instructions

    LIGHTING INSTRUCTIONS FOR YOUR SAFETY READ BEFORE LIGHTING BEFORE LIGHTING: ENTIRE SYSTEM MUST BE FILLED WITH WATER AND AIR PURGED FROM ALL LINES A. This appliance does not have a pilot. It is equipped with an ignition device which automatically lights the burner. Do NOT try to light the burner by hand.
  • Page 37: Heat Cycle Defi Nitions

    HEAT CYCLE DEFINITIONS STATE Pre-purge If the heat engine initial call-for-heat is successful (all checks are passed), the combustion fan is energized. The fan is started at a high speed for several seconds and the system verifi es the fan speed. Input signals (from other parts of the water heater) are verifi ed before completion of pre-purge including fan current verifi...
  • Page 38: Temperature Regulation

    TEMPERATURE REGULATION FIGURE 35 It is recommended that lower water temperatures be used to avoid the risk of scalding. It is further recommended, in all cases, that the water temperatures be set for the lowest temperature which satisfi es your hot water needs. This will also provide the most energy effi...
  • Page 39: Unique Hybrid Features

    Time for 1st Water Degree Burn Temperature (Less Severe Burns) 110°F (44°C) (normal shower temp.) 116°F (47°C) (pain threshold) 116°F (47°C) 35 minutes 122°F (50°C) 1 minute 131°F (55°C) 5 seconds 140°F (60°C) 2 seconds 149°F (65°C) 1 second 154°F (68°C) instantaneous (U.S.
  • Page 40 Water Circulation Pump A circulation pump is integrated into the heat engine for the Hybrid application. The pump serves to push water through the heat engine at a rate that supports optimum recovery time and maximum heat output. The control provides 120Vac, 60Hz line power to the pump to enable operation.
  • Page 41: Temperature Regulation

    Line Voltage Monitor The control monitors the line voltage provided to the system. If the line voltage is too low, the system components may not operate properly. For diagnostic purposes, the display panel should indicate that the cause was power-related. •...
  • Page 42: Constant Output Temperature Control

    CONSTANT OUTPUT TEMPERATURE CONTROL While the temperature regulation in the previous section describes the features of temperature monitoring and regulation, your water heater goes beyond the on/off control implied there and implements a gas, air and water fl ow modulation scheme to provide a constant water delivery temperature from the heat engine for the duration of the call for heat.
  • Page 43: Maintenance

    HOUSEKEEPING Vacuum around base of water heater for dust, dirt, and lint on a regular basis. VENTING SYSTEM INSPECTION At least once a year a visual inspection should be made of the venting system. You should look for: Obstructions which could cause improper venting. The combustion and ventilation air fl...
  • Page 44: Anode Rod Replacement

    ANODE ROD REPLACEMENT To replace the anode: Turn off gas supply to the water heater. Shut off the water supply and open a nearby hot-water faucet to depressurize the water tank. Drain approximately 5 gallons (20 litres) of water from tank (Refer to “DRAINING THE TANK”...
  • Page 45: Cleaning The Heat Engine

    Remove the fi lter: • Disconnect the electrical power to the water heater. • Close the shutoff valves on both the hot-water and cold-water lines. • Unlock the door by rotating the side lock counter- clockwise with a wide, slot screwdriver. •...
  • Page 46: Draining The Tank

    • Disconnect electrical power to the water heater. • Remove the pail of cleaning solution and replace it with a pail of clean water. • Rinse the cleaning solution from the water heater as follows: • Connect the electrical power to the water heater and run the heat engine.
  • Page 47: Diagnostic Display

    DIAGNOSTIC DISPLAY By simultaneously pressing the “Mode” and “down arrow” buttons for 3 seconds the unit will allow access to the diagnostic mode. In diagnostic mode, using the up/down arrow allows for cycling between diagnostic codes. The numeric display will show the diagnostic code for 1 second, followed by the actual measurement displayed for 3 seconds.
  • Page 48 If an error code is displayed, or odd behavior of the unit occurs, the fi rst corrective action should be to “Cycle the Power”: Unplug the 120Vac power cord and after 5 seconds plug it in again. If this doesn’t clear the fault, proceed with the “Remedy”...
  • Page 49 Fault Code Description Displayed Blower speed is 200RPM below the target speed for 20 seconds. Blower speed is 500RPM above the target speed for 6 seconds. Blower speed Machine starts or normal abnormal. combustion, but Blower speed = 0 for last 3sec. Have Blower’s output signal but the Blower speed = 0 for last 400ms.
  • Page 50 Fault Code Description Displayed Blower Error. Locked Rotor. Water Flow Valve The water valve did not Closed. open when attempting to establish fl ow. Proportional Valve The closed loop control (PV) Response of the proportional valve Too Slow. is not functioning properly (control error) or the valve is responding slowly (valve failure).
  • Page 51: Troubleshooting

    These guidelines should be utilized by a qualifi ed service agent. Problem NOT ENOUGH HOT WATER CONDENSATION WATER LEAKS LEAKING T&P HOT WATER ODORS (refer to cathodic protection) HOT WATER TOO HOT WATER HEATER SOUNDS SIZZLING - RUMBLING NOISE SOOTING BURNER WILL NOT STAY LIT- GOES OUT 4-5 SECONDS VENT GAS ODORS...
  • Page 52 Problem WHEN THE TAP IS OPENED, THERE IS NO HOT WATER OR THE HOT WATER TURNS COLD AND STAYS COLD. THE WATER IS NOT HOT ENOUGH. THE WATER IS TOO HOT. CANNOT OPEN DOOR. Possible Cause(s) a. The hot water fi xture is not suffi...
  • Page 53: Service

    SERVICE If a condition persists or you are uncertain about the operation of the water heater contact a qualifi ed service agency. LEAKAGE CHECKPOINTS Use this guide to check a “Leaking” water heater. Many suspected “Leakers” are not leaking tanks. Often the source of the water can be found and corrected.
  • Page 54: Parts Identifi Cation

    PARTS IDENTIFICATION ITEM # Baffl e, Flue Hot Water Outlet Nipple (w/ Anode, Heat Trap) T&P Relief Valve Cold Water Inlet Nipple (w/ Dip Tube, Heat Trap) Cover, Back-Flue Gas Return Top Insulation Flue Gas Return Duct Assy Shroud, Back-Tank Assembly Shroud, Right Side-Tank Assembly Temperature Switch Condensate Trap...
  • Page 55 www.americanwaterheater.com...
  • Page 56: Replacement Parts

    REPLACEMENT PARTS Drain valve T&P relief valve Anode/MG/NIP/HT Anode/AL/NIP/HT Circulation pump assembly Inlet/outlet thermistor (Temp sensor) PCB assembly w/ base 12” Hose (braided) Tank thermistor NIP/DIP/TBO/HT Hi limit 85 (ECO) Drain/trap assembly-condensate Heat engine assy Gas valve Diptube J 3/4” (return) Transformer Hi limit Fuse Switch-High Temp...
  • Page 57: Notes

    NOTES www.americanwaterheater.com...
  • Page 58 NOTES www.americanwaterheater.com...
  • Page 59 NOTES www.americanwaterheater.com...
  • Page 60 Copyright © 2010 American Water Heater Company. All rights reserved.

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