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Instruction Manual
RESIDENTIAL GAS WATER HEATERS
POWER VENT/POWER DIRECT VENT GAS MODELS
WITH DIRECT SPARK IGNITION
MODELS VG6250T100/VGD6275T100 SERIES 130/131
www.americanwaterheater.com
American Water Heater
Johnson City, TN 37605
• For Your Safety •
AN ODORANT IS ADDED TO THE GAS USED
Thank you for buying this energy efficient water heater.
BY THIS WATER HEATER.
We appreciate your confidence in our products.
ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIRECTED TO THE LOCAL DEALER FRO
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TABLE OF CONTENTS SAFE INSTALLATION, USE AND SERVICE.................................3 User Settings & Control System Menus .................................42 APPROVALS .................................................................................3 FOR YOUR INFORMATION ........................................................47 GENERAL SAFETY INFORMATION .............................................4 Start Up Conditions ................................................................47 Precau
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SAFE INSTALLATION, USE AND SERVICE The proper installation, use and servicing of this water heater is extremely important to your safety and the safety of others. 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. Read and obey all safety messages and instructions throughout this manual. It is very important that the meaning of each safety message is understood by you and others who i
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GENERAL SAFETY INFORMATION PRECAUTIONS HYDROGEN GAS FLAMMABLE DO NOT USE THIS WATER HEATER IF ANY PART HAS BEEN UNDER WATER. Immediately call a qualified service agency to inspect the water heater and to make a determination on what steps should be taken next. Explosion Hazard If the unit is exposed to the following, do not operate heater until all corrective steps have been made by a qualified service agency. Flammable hydrogen gases may be present. 1. External fire. Keep all ignition sourc
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GENERAL SAFETY INFORMATION 5
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GENERAL SAFETY INFORMATION Fire or Explosion Hazard Fire Hazard Do not store or use gasoline or other flammable vapors and For continued protection against liquids in the vicinity of this or any other appliance. risk of fire: Avoid all ignition sources if you smell gas. Do not install water heater on Do not expose water heater controls to excessive gas carpeted floor. pressure. Do not operate water heater if Use only the gas shown on the water heater rating plate. flood damaged. Maintain require
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INTRODUCTION Thank You for purchasing this water heater. Properly installed and See the Installation Checklist and Troubleshooting on Page 51. maintained, it should give you years of trouble free service. By using this checklist the user may be able to make minor operational adjustments and avoid unnecessary service calls. However, service and diagnostic procedures should only be ABBREVIATIONS USED performed by a Qualified Service Agency. Abbreviations found in this Instruction Manual includ
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DIMENSIONS AND CAPACITY DATA ROUGH IN DIMENSIONS: 50 GALLON UNIT Figure 1: DIMENSIONS FOR 50 GALLON UNIT ROUGH IN DIMENSIONS: 75 GALLON UNIT Figure 1A: DIMENSIONS FOR 75 GALLON UNIT Table 1 – ROUGH-IN-DIMENSIONS Units A B C D E F G H I Inches 66.75 49.25 22.00 15.75 3.00 8.00 8.00 62.00 65.00 50G cm 169.5 125.09 55.88 40.00 7.62 20.32 20.32 157.48 165.1 Inches 64.71 45.64 27.75 16.00 3.71 8.00 7.93 57.36 58.98 75G cm 164.4 115.9 70.5 40.6 9.4 20.3 20.1 145.7 149.8 Top Inlet and Outlet: 50G - 3/4
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DIMENSIONS AND CAPACITY DATA Table 2 – CAPACITY, GAS AND ELECTRICAL CHARACTERISTICS Approximate Capacity Manifold Pressure Electrical Characteristics U.S. Gals. Liters Gas Type “WC kPA Volts/Hz Amperes 50 189 Nat./LP 0 0 120/60 <5 75 284 Nat/LP 0 0 120/60 <5 All models - Maximum Supply Pressure: 14 inches W.C. (3.48kPa) Minimum Supply Pressure for Natural Gas: 3.50” (.87kPa) Minimum Supply Pressure for Propane Gas: 8.00” (1.99kPa) Minimum pressure must be maintained under both load and no load (
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FEATURES AND COMPONENTS 50 GALLON UNIT **29 20 23 22 **14 21 5 1 12 **15 18 21 16 25 11 ACCESS PANEL 17 24 18 33 35 Caution: This access panel covers a 2” NPT plug that was required 13 19 during the manufacturing of this water heater. This 2” NPT flange is not a cleanout fitting, removing the 2” NPT plug and using this fitting as a cleanout could void your warranty. 31 26, 27 32 9 34 (SEE 3 4 ACCESS 2 PANEL CAUTION) 30 VACUUM RELIEF VALVE 28 *INSTALL PER LOCAL CODES * CAUTION HARNESS
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FEATURES AND COMPONENTS (CONT.) 75 GALLON UNIT **29 **14 20 22 23 21 **15 5 12 18 21 11 17 1 25 24 18 3 13 16 2 26, 27 31 4 35 33 19 9 32 34 VACUUM RELIEF 30 VALVE 28 *INSTALL PER LOCAL CODES * CAUTION HARNESS HAS 120 VAC. IN OPERATION. ** See Planning the Vent System, Installation of Vent System and Condensate Piping for more information. Figure 1C: 75 GALLON UNIT 11
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FEATURES AND COMPONENTS (CONT.) 1: Control Assembly 2: Blocked Intake Switch 3: Blocked Outlet Switch 4: Blower Prover Switch 5: Blower Assembly 6: Burner Assembly 7: Flame Sensor 8: Igniter Assembly 9: Junction Box 10: Gas Control Valve Assembly 11: Display Board 12: Top Plastic Enclosure 13: Display Enclosure ** 14: Exhaust Elbow Assembly ** 15: Condensate Tubing 16: Off/On Switch 17: Display Label 18: Hot Water Outlet 19: Gas Supply 20: Main Manual Gas
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BLOCKED EXHAUST SWITCH CONTROLS AND SWITCHES The Blocked Exhaust Switch is set up to shut the unit off when a build- This model is provided with three pressure switches. These switches up of positive pressure in the exhaust vent pipe occurs. This switch are essential to the safe and proper operation of the unit. All switches is a positive pressure switch that requires an increase in pressure to are wired in series. The controller is set up to shut the unit down change the electrical contac
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INSTALLATION CONSIDERATIONS LOCATING THE WATER HEATER Also, the water heater must be located and/or protected so it is not subject to physical damage by a moving vehicle. Carefully choose a location for the new water heater. The placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the water heater. CAUTION Property Damage Hazard • All water heaters eventually leak. Do not install without adequate drainage. • Whether r
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• Do not apply insulation to the top of the water heater, as this will interfere with safe operation of the blower assembly. • Do not cover the control system LCD on top of the water heater. • Do not cover the outer door, thermostat or temperature & pressure relief valve. • Do not cover the instruction manual. Keep it on the side of the water heater or nearby for future reference. • Do obtain new warning and instruction labels from the manufacturer for placement on the blanket directly o
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FRESH AIR OPENINGS FOR CONFINED SPACES UNCONFINED SPACE The following instructions shall be used to calculate the size, number and placement of openings providing fresh air for combustion, An Unconfined Space is one whose volume IS NOT LESS THAN 50 cubic feet per 1,000 Btu/hr (4.8 cubic meters per kW) of the ventilation and dilution in confined spaces. The illustrations shown total input rating of all appliances installed in the space. Rooms in this section of the manual are a reference for
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Alternatively a single permanent opening, commencing within 12 AIR FROM OTHER INDOOR SPACES inches (300 mm) of the top of the enclosure, shall be provided. See Figure 6. The water heater shall have clearances of at least 1 inch (25 mm) from the sides and back and 6 inches (150 mm) from the front of the appliance. The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces that freely communicate with the out
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INSTALLATION REQUIREMENTS CHEMICAL VAPOR CORROSION Corrosion of the flueways and vent system may occur if air for combustion contains certain chemical vapors. Such corrosion may result in failure and risk of asphyxiation. Spray can propellants, cleaning solvents, refrigerator and air conditioning refrigerants, swimming pool chemicals, calcium and sodium chloride (water softener salt), waxes, and process This water heater shall not be connected to any heating chemicals are typical compounds
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MIXING VALVES GAS PIPING Make sure gas supplied is same type listed on model rating plate. The inlet gas pressure must not exceed 14 inch water column (3.5 kPa) for Water temperature over 125°F (52°C) natural and propane gas (L.P.). The minimum inlet gas pressure shown can cause severe burns instantly on rating plate is that which will permit firing at rated input. resulting in severe injury or death. SEDIMENT TRAPS Children, the elderly and the physically or mentally disabled are at highest
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All gas piping must comply with local codes and ordinances or with GAS SUPPLY SYSTEMS the current editions National Fuel Gas Code (ANSI Z223.1/ NFPA- Low pressure building gas supply systems are defined as those 54). Copper or brass tubing and fittings (except tin lined copper systems that cannot under any circumstances exceed 14” W.C. (1/2 tubing) shall not be used. PSI Gauge). These systems do not require pressure regulation. If the gas control valve is subjected to pressures exceeding 1/
