A.O. Smith Promax GPD Series Instruction Manual Download Page 3 | Manualshive

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Summary of Contents for Promax GPD Series

Page 1: ... MODELS NOT FOR USE IN MANUFACTURED MOBILE HOMES ALL TECHNICAL AND WARRANTY QUESTIONS SHOULD BE DIRECTED TO THE LOCAL DEALER FROM WHOM THE WATER HEATER WAS PURCHASED IF YOU ARE UNSUCCESSFUL PLEASE WRITE TO THE COMPANY LISTED ON THE RATING PLATE ON THE WATER HEATER RESIDENTIAL GAS WATER HEATERS For Your Safety AN ODORANT IS ADDED TO THE GAS USED BY THIS WATER HEATER LOW LEAD CONTENT ...

Page 2: ...o some of the substances included in the act This product is certified to comply with a maximum weighted average of 0 25 lead content as required in some areas IMPORTANT DEFINITIONS Qualified Installer A qualified installer must have ability equivalent to a licensed tradesman in the fields of plumbing air supply venting and gas supply including a thorough understanding of the requirements of the N...

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Page 4: ...e location to ensure the water heater complies with the Locating the New Water Heater section in this manual 6 For California installation this water heater must be braced anchored or strapped to avoid falling or moving during an earthquake Correct installation procedure instructions may be obtained from California s Office of the State Architect 1102 Q street Suite 5100 Sacramento CA 95811 Instru...

Page 5: ...ntally vented gas fueled heating appli ance or equipment The sign shall read in print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless upon inspection the inspector observes carbon monoxide detectors and si...

Page 6: ...e Relief Valve O Flue P Flue Baffle Assembly Q Insulation R Rating Plate S Gas Supply T Manual Gas Shut off Valve U Ground Joint Union V Sediment Trap Dirt Leg W Drain Valve X Gas Control Valve Thermostat Y Metal Drain Pan Z Inner Door AA Outer Door BB HSI Burner Assembly CC FV Sensor Assembly TEMPERATURE INDICATORS TEMPERATURE ADJUSTMENT BUTTONS CAUTION 115 VAC CONTROL HARNESS INSIDE OUTER JACKET...

Page 7: ...han others These include the elderly children the infirm or physically mentally disabled If anyone using hot water in your home fits into one of these 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 satisfies your hot water needs a mean...

Page 8: ...rs and retailers and detect and react to leakage in various ways Sensors mounted in the metal drain pan that trigger an alarm or turn off the incoming water to the water heater when leakage is detected Sensors mounted in the metal drain pan that turn off the water supply to the entire home when water is detected in the drain pan Watersupplyshut offdevicesthatactivatebasedonthewaterpressure differe...

Page 9: ... to provide ventilation air can result in a fire or explosion and can cause DEATH SERIOUS BODILY INJURY OR PROPERTY DAMAGE FIGURE 5 If this water heater will be used in beauty shops barber shops cleaning establishments or self service laundries with dry cleaning equipment it is imperative that the water heater or water heaters be installed so that combustion and ventilation air be taken from outsi...

Page 10: ...The vent exhaust outlet and air inlet terminals shall terminate at least 18 45 7 cm above the roof surface see Figure 9 FIGURE 9 AIR FOR VENTILATION FOR APPLIANCES LOCATED IN CONFINED SPACES Air for ventilation should be provided if installed in a confined space Refer to the National Fuel Gas Code ANSI Z223 1 INSULATION BLANKETS Insulation blankets are available to the general public for external ...

Page 11: ...l interfere with safe operation of the water heater Do not cover the outer door gas control valve thermostat temperature pressure relief valve or FV Sensor Do not let insulation around the gas water heater get within 8 inches of the floor access for servicing the burner Do not cover the instruction manual Keep it on the side of the water heater or nearby for future reference Do obtain new warning ...

Page 12: ...permanently injure you upon contact Some people are more likely to be permanently injured by hot water than others These include the elderly children the infirm or physically mentally disabled If anyone using hot water in your home fits into one of these 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...

Page 13: ...the valve must meet the requirements of local codes but not less than a combination temperature and pressure relief valve certified as indicated in the above paragraph The valve must be marked with a maximum set pressure not to exceed the marked hydrostatic working pressure of the water heater 150 psi 1 035 kPa and a discharge capacity not less than the water heater input rate as shown on the mode...

Page 14: ... prevent dirt and foreign materials from entering the gas control valve thermostat A flexible gas connector or a ground joint union between the shut off valve and gas control valve thermostat to permit servicing of the unit Be sure to check all the gas piping for leaks before lighting the water heater Use a soapy water solution not a match or open flame Rinse off soapy solution and wipe dry When i...

Page 15: ...ter Water must flow from the hot water faucet before turning ON gas to the water heater To fill 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 us...

Page 16: ...10 120 Vac therefore a grounded outlet must be within reach of the six 6 foot 1 8 m flexible power cord supplied with the unit See Figure 2 The power cord supplied may be used only where local codes permit If local codes do not permit the use of a flexible power supply cord a Make sure the unit is unplugged from wall outlet Remove screws and remove control box b Cut the flexible power cord leaving...

Page 17: ...irect vent water heater snow accumulation and drifting should be considered in areas where applicable IMPORTANT DO NOT common vent this water heater with any other appliance FIGURE 16 Horizontal runs must be securely supported at 3 1 2 foot 1 m intervals and vertical runs supported at 5 foot 1 5 m intervals FIGURE 17 VENTING THROUGH AN OUTSIDE WALL A All 75 Gallon Models In the carton is supplied ...

Page 18: ...nd 50 Gallon 40 000 BTU HR Models In the carton is supplied 1 Two 3 inlet and outlet PVC Schedule 40 45 vent caps All other piping must be supplied by the supplier FIGURE 20 If making an immediate horizontal run of vent off the blower one 3 PVC or ABS Schedule 40 street elbow is required for the outlet In addition one 3 PVC or ABS Schedule 40 elbow and one section of 3 PVC pipe a minimum of 3 long...

Page 19: ...feet 1 5 m of length required in the horizontal run See Figure 25 FIGURE 25 The 3 PVC ABS or CPVC Schedule 40 vent pipe can be run from the water heater through the wall or from the wall to the water heater whichever is most convenient The vent pipe must extend a minimum of 1 1 2 4 cm through the exterior wall Extending the vent cap as far as possible from the surface of the exterior wall will hel...

Page 20: ...let PVC Schedule 40 45 vent caps are supplied A 5 1 5 m section of 3 CPVC Schedule 40 outlet vent pipe is supplied with 75 gallon models and a 5 1 5 m section of 3 ABS Schedule 40 outlet vent pipe is supplied with 50 gallon 65 000 Btu Hr models More may be required and must be purchased locally 1 The water heater requires its own separate venting system 2 Only 3 ABS Schedule 40 piping and fittings...

Page 21: ...or CPVC Components and ABS for ABS components Containers Metal or Glass to hold Primer and Cement Select the type of PVC ABS or CPVC materials to be used on the basis of their application with respect to chemical resistance pressure rating temperature characteristics etc Insertion Tool Helpful for larger diameter pipe and fittings 6 inches 15 2 cm and above PRIMER It is recommended that Tetrahydro...

Page 22: ... if necessary Depth of entry Marking the depth of entry is a way to check if the pipe has reached the bottom of the fitting socket in Step F Measure the fitting depth and mark this distance on the pipe O D You may want to add several inches to the distance and make a second mark as the primer and cement will most likely destroy your first one Apply primer to the surface of the pipe and fitting soc...

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Page 24: ...ble area is not available a cover should be installed over the thermostat to prevent tampering The water temperature setting was factory set at the lowest temperature Pressing the COOLER button decreases temperature and pressing the HOTTER button increases the temperature Setting the water heater temperature at 120 F 49 C Approx mark on temperature setting of gas control valve thermostat will redu...

Page 25: ...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 water discharged from the valve due to excessive pressure build up The temperature pressure...

Page 26: ...ontact a qualified installer or service agency to replace a flooded water heater Do not attempt to repair the unit It must be replaced At least once a year a visual inspection should be made of the main burner and the hot surface igniter assembly for proper flame PERIODIC MAINTENANCE characteristics and ignition sequences This can be done by viewing the main burner operation through the Viewport o...

Page 27: ...th are visible ANODE ROD DEPLETION FIGURE 32B If the anode rod shows signs of either or both it should be replaced NOTE Whether re installing or replacing the anode rod check for any leaks and immediately correct if found In situations where clearance above the water heater is limited it may be necessary to bend the anode rod for removal Flexible anode rods are available for replacement In replaci...

Page 28: ... restart the heater as directed in this manual If the water heater is going to be shut down for an extended period the drain valve should be left open IMPORTANT Condensation may occur when refilling the tank and should not be confused with a tank leak DRAIN VALVE WASHER REPLACEMENT See Figure 34 1 Turn OFF gas supply to water heater 2 Follow Draining instructions 3 Turning counterclockwise remove ...

Page 29: ...lief valve may be leaking at the tank fitting F Water from a drain valve may be due to the valve being slightly opened G The drain valve may be leaking at the tank fitting H Combustion products contain water vapor which can condense on the cooler surfaces of the tank Droplets form and drip onto the burner or run on the floor This is common at the time of start up after installation and when incomi...

Page 30: ...s 6 26 FV Sensor 27 Gas Control Valve Thermostat 28 Pressure Switch Air 29 Flue Baffle Assembly 30 Baffle Adaptor Collar Assembly 31 Optional 3 PVCHorizontalVentKit rating plate located above the gas control valve thermostat WHEN ORDERING REPAIR PARTS ALWAYS GIVE THE FOLLOWING INFORMATION MODEL NUMBER TYPE GAS NATURAL OR PROPANE L P SERIAL NUMBER PART DESCRIPTION THIS IS A REPAIR PARTS LIST NOT A ...

Page 31: ...maximum number of elbows or maximum equivalent feet of vent or intake air pipe has not been exceeded per the installation instructions in the manual that came with the water heater 4 Ensure there are no obstructions in the vent or intake air pipe 5 The gas control valve thermostat has detected an open igniter circuit 1 Check wiring to the hot surface igniter assembly replace igniter assembly if wi...

Page 32: ...ic check has detected the FV flammable vapor sensor is either open or shorted 1 Turn off power to the water heater Ensure all FV sensor wiring the ignitor assembly plug and the ignitor assembly socket on the bottom of the Intellivent control are making good contact Repair or replace any worn damaged components that are not making good connection 2 Replace the FV sensor 15 Self diagnostic check has...

Page 33: ...nd gas clean burner head Combustion air path restricted Check intake venting arrangement for obstructions Not enough dilution air for proper combustion Check intake venting arrangement for obstructions CONDENSATION Water on the floor under heater See CONDENSATION section Water dripping from blower assembly Provide drip TEE to catch condensation from horizontal section of exhaust vent close to blow...

Page 34: ...with specifications of the heating component manufacturer This warranty gives you specific legal rights and you may have other rights which vary under the laws of each province If any provision of this warranty is prohibited or invalid under applicable province law that provision shall be ineffective to the extent of the prohibition or invalidity without invalidating the remainder of the affected ...

Page 35: ...r similar water heater or parts thereof which are manufactured or distributed by the warrantor Dealer replacements are made subject to in warranty validation by warrantor PROOF OF PURCHASE AND PROOF OF INSTALLATION DATE ARE REQUIRED TO SUPPORT WARRANTY CLAIM FROM ORIGINAL OWNER THIS FORM DOES NOT CONSTITUTE PROOF OF PURCHASE OR PROOF OF INSTALLATION DISCLAIMERS NO EXPRESSED WARRANTY HAS BEEN OR WI...

Page 36: ...Copyright 2012 A O Smith Corporation All rights reserved ...

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