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Instruction Manual
RESIDENTIAL GAS WATER HEATERS
POWER VENTED GAS MODELS WITH HOT SURFACE IGNITION
NOT FOR USE IN MANUFACTURED (MOBILE) HOMES
500 Tennessee Waltz Parkway
Ashland City, TN 37015
www.statewaterheaters.com
GAMA certification applies
to all residential gas water
heaters with capacities of 20
to 100 gallons with input rating
of 75,000 BTU/Hr. or less.
• For Your Safety •
AN ODORANT IS ADDED TO THE GAS USED
BY THIS WATER HEATER.
ALL TECHNICAL AND WARRANTY QUESTIONS: SHOULD BE DIR
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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. 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 instal
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GENERAL SAFETY 3
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TABLE OF CONTENTS SAFE INSTALLATION, USE AND SERVICE............................2 TEMPERATURE REGULATION ............................................22 FOR YOUR INFORMATION ...................................................23 GENERAL SAFETY..................................................................3 TABLE OF CONTENTS ............................................................4 Start Up Conditions .........................................................23 Condensate....................
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INSTALLATION REQUIREMENTS FOR THE COMMONWEALTH OF MASSACHUSETTS For all side wall terminated, horizontally vented power vent, direct vent, and power direct 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 fi nished grade in the area of the venting, including but not limited to
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TYPICAL INSTALLATION GET TO KNOW YOUR WATER HEATER - GAS MODELS A Vent Pipe–Exhaust N Flue Z Air Intake Screen - Base Pan B Vent Terminal O Flue Baffl e Assembly** AA Inner Door C Vent Adapter-Rubber Boot P Insulation B B Outer Door D Blower Assembly Q Control Harness CC HSI Burner Assembly E Cold Water Inlet R Rating Plate D D Air Intake Screen - F Inlet Water Shut-off Valve S Gas Supply Blower Assembly G Union T Manual Gas Shut-off Valve E E FV Sensor/Bracket Assembly H Inlet Dip
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TYPICAL INSTALLATION MIXING VALVE USAGE FIGURE 2. This appliance has been design certifi ed as complying with American National Standard/CSA Standard for water heaters and is considered Water heaters are intended to produce hot water. Water heated to a suitable for: temperature which will satisfy space heating, clothes washing, dish Water (Potable) Heating and Space Heating: All models are washing, and other sanitizing needs can scald and permanently injure considered suitable for
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LOCATING THE NEW WATER HEATER FACTS TO CONSIDER ABOUT THE LOCATION Carefully choose an indoor location for the new water heater, because the placement is a very important consideration for the safety of the occupants in the building and for the most economical use of the appliance. This water heater is not for use in manufactured (mobile) homes or outdoor installation. FIGURE 3. Whether replacing an old water heater or putting the water heater in Also, the water heater must be located and/
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and 12" (30.5 cm) from the top. (Standard clearance.) If clearances chlorine based chemicals, refrigerants, etc.) in addition to being highly stated on the heater differ from standard clearances, install water fl ammable in many cases, will also react to form corrosive hydrochloric heater according to clearances stated on the heater. acid when exposed to the combustion products of the water heater. The results can be hazardous, and also cause product failure. Adequate clearance for servicing
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Chemical vapor corrosion of the fl ue, blower assembly and vent system may occur if air for combustion contains certain chemical vapors. Spray can propellants, cleaning solvents, refrigerator and air conditioner refrigerants, swimming pool chemicals, calcium and sodium chloride, waxes, bleach and process chemicals are typical compounds which are potentially corrosive. A. ALL AIR FROM INSIDE BUILDINGS: (See Figure 5 and 6) The confi ned space shall be provided with two permanent openings co
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INSTALLING THE NEW WATER HEATER THERMAL EXPANSION WATER PIPING As water is heated, it expands (thermal expansion). In a closed system the volume of water will grow. As the volume of water grows there will be a corresponding increase in water pressure due to thermal expansion. Thermal expansion can cause premature tank failure (leakage). This type of failure is not covered under the limited warranty. Thermal expansion can also cause intermittent temperature-pressure relief valve operation:
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Figure 10 shows the typical attachment of the water piping to the The valve must be marked with a maximum set pressure not to water heater. The water heater is equipped with 3/4 inch NPT water exceed the marked hydrostatic working pressure of the water heater connections. (150 psi = 1,035 kPa) and a discharge capacity not less than the water heater input rate as shown on the model rating plate. NOTE: If using copper tubing, solder tubing to an adapter before For safe operation of the water
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When installed at elevations above 7,700 feet (2,347 meters), input GAS PIPING rating should be reduced at the rate of 4 percent for each 1,000 feet (305 meters) above sea level which requires replacement of the burner orifi ce in accordance with National Fuel Gas Code ANSI Z223.1/ NFPA 54. Contact your local gas supplier for further information. Failure to replace the standard orifi ce with a high altitude orifi ce when installed could result in improper and ineffi cient operation of the app
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SEDIMENT TRAPS To fi ll the water heater with water: 1. Close the water heater drain valve by turning the handle to the right (clockwise). The drain valve is on the lower front of the water heater. 2. Open the cold water supply valve to the water heater. NOTE: The cold water supply valve must be left open when the water heater is in use. 3. To insure complete fi lling of the tank, allow air to exit by opening the nearest hot water faucet. Allow water to run until a constant fl ow is obtaine
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VENT CONNECTIONS TO BLOWER ASSEMBLY VENTING AND INSTALLATION Figure 15 shows the optimal placement of the 2" to 3" or 3" to Plan the layout of the vent system from the vent termination to the water 4" reducer; however, the vent can be reduced at any point in the heater considering all of the 90° and 45° elbows plus the number of vent system as long as the maximum and minimum vent length feet of pipe that would be needed to install the total vent system. The requirements are met. water heat
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The unit may be vented horizontally through a wall or vertically through condensate in the vent piping. If this occurs, then adequate means the roof. Pipe runs must be adequately supported along both vertical of draining and disposing of the condensate needs to be made by the installer. and horizontal runs as follows: • For Schedule 40, 2" PVC, ABS, Coex Cellular Core vent pipe: Every CONDENSATE 3 feet (0.9 m). Condensate formation does not occur in all installations of power vented water he
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For 4" Venting, the maximum equivalent feet of pipe allowed is The vent system must terminate so that proper clearances are 160 feet (48.8 m). This does not include the Vent Termination (supplied maintained as cited in local codes or the current edition of the locally) for the water heater. For the 4" venting, one 90° elbow is National Fuel Gas Code, ANSI Z223.1/NFPA 54, 7.3.4e and 7.8a,b, approximately equal to 8 feet (2.4 m). One 45° elbow is approximately as follows: equal to 4 feet (1
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FIGURE 16. This unit can vent through 2", 3" or 4" nonmetallic pipe and fi ttings. VERTICAL VENT TERMINATION RESTRICTIONS The vent pipe installation can be started from either the blower 1. Minimum of twelve 12" (30.5 cm) above the roof or twelve 12" discharge or the termination wall. Keep in mind the total vent system (30.5 cm) above the anticipated snow level. Provide proper support (pipe and elbows) when installing the vent system, see VENTING for all pipe protruding through the roof. A
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PRIMER VENT PIPE PREPARATION It is recommended that Tetrahydrofuran (THF) be used to prepare the 1. INITIAL PREPARATION surfaces of pipe and fi ttings for solvent welding. Do not use water, rags, gasoline or any other substitutes for cleaning PVC or CPVC A. Make sure the solvent cement you are planning to use is surfaces. A chemical cleaner such as MEK may be used. designed for the specifi c application you are attempting. CEMENT B. Know the physical and chemical characteristics and limita
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B. Deburring Use a knife, plastic pipe deburring tool, or fi le to remove burrs from the end of small diameter pipe. Be sure to remove all burrs from around the inside as well as the outside of the pipe. A slight chamfer (bevel) of about 10°-15° should be added to the end to permit easier insertion of the pipe into the end of the fi tting. Failure to chamfer the edge of the pipe may remove cement from the fi tting socket, causing the joint to leak. STEP E F. Joint ass
