User Guide

ManualsBrandsAO Smith ManualsPlumbing Supplies140,000 BTU Condensing Ultra-Low NOx Outdoor Tankless Water Heater (LP)

Summary of content (56 pages)

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Installation Manual Contents CONTENTS Installation Manual SPECIFICATIONS �� 4 INTRODUCTION �� 5 SAFETY GUIDELINES �� 6 INSTALLATION ��
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Installation Manual Installation Manual CONGRATULATIONS Congratulations and thank you for choosing our tankless water heater. Before use, we recommend that you read through this safety manual carefully. Please refer to the back of the manual for details about the warranty. Keep this manual for future reference. If you lose the manual, contact the manufacturer or your local distributor.
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Installation Manual Specifications SPECIFICATIONS 140 Iv}} M}o O}} (T-H3M-DV) ~TrHMrOSZ No G Iv (Operating Range) BTU/h Min.: 15,000 Max.: 120,000 P}v Iv (Operating Range) BTU/h Min.: 15,000 Max.: 120,000 G C}vv]}v 1/2" NPT W C}vv]}v W P 3/4" NPT No P Ivo P P}v Ivo P Natural Gas Mv](}o P Propane W]PR psi (MPa) inch W.C. (kPa) inch W.C. (kPa) inch W.C. (Pa) 3.30 (820) 2.00 (500) inch W.C. (Pa) 3.00 (750) 1.60 (400) lbs. (kg) 50 (22.5) 50 (22.5) 15 - 150 (0.1 - 1.0) Min. 5.
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Installation Manual Introduction INTRODUCTION { This manual provides information necessary for the installation, operation, and maintenance of the water heater. { The model description is listed on the rating plate which is attached to the side panel of the water heater. { Please read all installation instructions completely before installing this product. { If you have any problems or questions regarding this equipment, consult the manufacturer or its local representative.
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Installation Manual Safety Guidelines SAFETY GUIDELINES SAFETY DEFINITION ANGE D R WARNING UTION CA Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Indicates an imminently hazardous situation which, if not avoided, could result in death or serious injury. Indicates an imminently hazardous situation which, if not avoided, could result in minor or moderate injury.
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Installation Manual Installation INSTALLATION GENERAL X Follow all local codes, or in the absence of local codes, follow the most recent edition of the National Fuel Gas Code: ANSI Z223.1/NFPA 54 in the USA or CAN/CSA B149.1 Natural Gas, Propane Installation Code in Canada. X All gas water heaters require careful and correct installation to ensure safe and efficient operation. This manual must be followed exactly. Read the “Safety Guidelines” section. X The manifold gas pressure is preset at the factory.
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Installation Manual Installation WARNING UTION CA { Ivoo]}v v ] u (}u ˙ o](] ]voo ~(} ˘uoU o]v ou } P (]ZU }R`] R `v˙ `]oo }]X { TR ]voo ~o]v }(]}voZ ] }v]o (} R } ]voo]}v }( R ` R v (} }uo]v `]R oo v]}voU l}]v]oU v o}o }X { TR uv( } v} }uuv ]voo]vP R ` R ]v ] } o}]}v `R P v ` v uoX { Do not have the vent terminal pointing toward any operating window, door, or opening into a building.
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Installation Manual Installation INCLUDED ACCESSORIES Check that these items below are included with the water heater. Ivoo]}v Mvo Tu Ru} C}v}oo l] B] v O`v [ G] O}} u}o }vo˙ Iv}} Qty: 1 Sv u}o }vo˙ Qty: 2 Qty: 1 *For more information on optional items, please refer to p.32 to 33. CLEARANCES Maintain all clearances around the water heater. Top Back Side Side Front B}'}u M}o T} B}}u F}v Bl S] 140 Indoor (T-H3M-DV) 12 in. (305 mm) 12 in. (305 mm) 4 in.* (102 mm) 1 in. (25 mm) 3 in.
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Installation Manual Installation 2 ft. (610 mm) Water heater vent terminator must be at least 2 ft. (610 mm) away from an inside corner for both outdoor installation and direct-vent installation. Inside Corner VENTING INSTRUCTIONS For the 140 Indoor (T-H3M-DV) model -General- ANGE D R UTION CA { Improper venting of this appliance can result in excessive levels of carbon monoxide which can result in severe personal injury or death.
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Installation Manual Installation Gvo o (} v u]v]}vP { Avoid locating the water heater vent termination near v˙ ] ]vl ] . These fans can pick up the exhaust flue products from the water heater and return them to the building. This can create a health hazard. { Locate the vent termination so that it cannot be blocked by any debris, at any time.
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Installation Manual Installation -DIPswitch settings for Vent lengthSet DIPswitches shown in the tables below depending on the vent length. Only adjust switches with a black square. Black squares indicate the position of the switch. 2 inch venting Vv ovPR S]vPo ] ON 1 2 3 4 5 6 7 8 9 10 æ } Xæ (X OFF No. 6 : ON No. 7 : ON 3 inch venting Vv ovPR æ} (X ~DEFAULTZ T`}r] Vv ON 1 2 3 4 5 6 7 8 9 10 ovPR æ } æ (X ~DEFAULTZ OFF No. 6 : ON No. 7 : OFF (X OFF } No. 6 : OFF No.
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Installation Manual Installation -Intake and Exhaust Venting IllustrationsABSUPVCUCPVCU}}o˙}˙ovv T˙]o]voo}v]vP ]vRv]voo}v Vv }vv]}v (} ]vPo ] 2" straight pipe o}``]R] v 3"x2" reducer Exhaust vent collar (Female) Intake vent collar (Female) *The water heater came with a metal screen that will fit into a 3 inch elbow. X)C}vv o}` ]o˙ }v R intake vent collar of the water heater. X)C}vv ˘ ]o˙ }v the exhaust vent collar of the water heater.
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Installation Manual Installation ]vRv]voo}v Vv }vv]}v 3" straight pipe 3" coupling (included) Vv (} `}r] (} ]vPo ] 3" straight pipe 3" straight pipe o}``]R ]v 3" coupling (included) 3" coupling (included) Intake vent collar (Female) Exhaust vent collar (Female) Intake vent collar (Female) }vv]}v Exhaust vent collar (Female) *The water heater came with a metal screen that will fit into a 3 inch elbow. X)C}vv o}` ]o˙ }v R intake vent collar of the water heater.
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Installation Manual Installation E˘uo}(]voo}v}(]vR]vRv T`}r]U]rv S]vPo]`]R}}ur]]vl Hanger Hanger Wall Hanger Wall Termination Terminations Roof Roof Roof flashing Roof flashing Fire stop R( } P v Fire stop ı (} ov 15 Page ]v(}u]}v
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Installation Manual Installation -Exhaust vent (Stainless steel vent)This is a Category IV appliance and must be vented accordingly. The vent system must be sealed airtight. All seams and joints `]R}Pl must be sealed with high heat resistant silicone sealant or UL listed aluminum adhesive tape having a minimum temperature rating of 160 °F. For best results, a vent system should be as short and straight as possible.
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Installation Manual Installation -Vent termination clearancesINSIDE CORNER DETAIL V Vent terminal X Air supply inlet V Area where is not permitted G H A D V E B C V F V ED ABLE FIXLOSED C OPER V FIXED ED CLOS E BL A OPER V L B B V B B V I X M V X K J A Gas meter / regulator B A Canada Direct-vent and other than Direct-vent Directvent 1 foot 1 foot 1 foot 3 feet 1 foot 4 feet from below or side opening.
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Installation Manual Installation For multiple sidewall exhaust terminations, an exhaust termination must be at least 1 ft. (305mm) away from another exhaust termination. An exhaust termination must also be at least 2 ft. (610 mm) away from an inside corner. (If the adjacent wall is less than 2 ft. (610 mm) of length, the minimum required distance away from the inside corner will be equal to the length of that adjacent wall.) 2 ft. 1 ft. (305 mm) (610mm) min. min. 1 ft. (305 mm) min.
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Installation Manual Installation Exhaust and/or direct-vent sidewall terminations should be at least 2 ft. (610 mm) away from an opposite surface/ wall. Do not place the termination directly in front of an opening into a building. 2 ft. (610 mm) min. Exhaust termination
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Installation Manual Installation GAS SUPPLY AND GAS PIPE SIZING -General- UTION CA { Rl C R R ˙ }( P uR R ]vP o (]X { vE R v˙ v oo P Po} }]vP }o˙ v }]]vP P `]R]v R ](] vP R}`v o}`X E˘ P ]vo u˙ ]} ]vX { Conversion of this water heater from natural gas to propane or vice versa will void all warranty. Contact your local distributor to get the correct unit for your gas type. TR uv( ] v} o]o (} v˙ }˙ vl} }vo uP o]vP (}u P }v]}v .
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Installation Manual Installation -Natural Gas Supply PipingMaximum delivery Capacity of Cubic Feet of Gas per Hour of IPS Pipe carrying Natural Gas with 0.60 Specific Gravity Based on Pressure Drop of 0.5" W.C.
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Installation Manual Installation -Measuring inlet gas pressure1. Turn off all electric power to the water heater if service is to be performed. 2. Turn the manual gas valve located on the outside of the water heater clockwise to the off position. The water heater cannot perform properly without sufficient inlet gas pressure. Below are instructions on how to check the inlet gas pressure. THIS IS ONLY TO BE DONE YB A LICENSED PROFESSIONAL . 1. Shut off the manual gas valve on the gas supply line. 2.
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Installation Manual Installation -Pressure relief valveThe water heater has a high-temperature shutoff switch built in as a standard safety feature (called a Hi-Limit switch) therefore a S }vo˙ _ relief valve is required. { This water heater does not come with an approved pressure relief valve. { An approved pressure relief valve must be installed on the hot water outlet. { The pressure relief valve must conform to ANSI ZX or CAN rX and installation must follow local codes.
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Installation Manual Installation -Condensate Drain Connections- WARNING D]RP }vv v }uu}v (˙ ~]] ]X `Z ]v }v `]R oo o}o } The water heater is a high efficiency condensing model that produces condensate (acidic water). The acidic condensate generated in the secondary heat exchanger can be neutralized by the Neutralizer accessory. C AP I( vo] ] v} ] 1. Connect a 1/2” FPT X 3/8” (or 1/2”) HB Adaptor to the condensate drain port at the bottom of the water heater. 2.
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Installation Manual Installation { The condensate drain is at atmospheric pressure (non-pressurized) and therefore must be allowed to drain freely with gravity only. Please ensure that there are no blockages along the condensate drain tube. Aoo }]}v }( R }vv ]v ~vo] v ]v Z u o}` o]}v Rv R ` R } v }vv ` (}u ]o]vP ]v] R R ˘RvPX { Condensate cannot be effectively neutralized if the neutralizer elements inside the Neutralizer accessory have been completely consumed.
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Installation Manual Installation TEMPERATURE REMOTE CONTROLLER Only the outdoor model comes with the temperature remote controller Check that these items below are included with the remote controller. Tu Ru} S` C}v}oo Qty: 1 Mvo Qty: 2 Ru} }v}oo C Qty: 1 oC Qty: 1 9009069005/TM-RE42 *It is also an optional accessary as a second remote for the indoor model. Refer to p. 32.
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Installation Manual Installation X )T]PRv R `} F}l u]vo beneath the two Ru} }v}oo u]vo screws, which are not polarity-sensitive, on the back of the main body. ~F]PCrX Z X Cut out the inlet for the remote controller cable from the bottom of the main body. ~F]PCrX Z æX )Po R SM]v }˙ ” back on the Bl o , with the Ru} }v}oo o running out of the bottom inlet.
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Installation Manual Installation HIGH-ALTITUDE INSTALLATIONS Check the elevation where your water heater is installed. Set DIPswitches shown in the tables below depending on the altitude. Iv}} u}o } U ~DEFAULTZ Ao] ON (X 1 2 3 4 5 6 7 8 9 10 O}} ON } (X U æU 1 2 3 4 5 6 7 8 9 10 OFF OFF DIPswitches U U No. 3 : OFF No. 4 : OFF No. 5 : OFF ON } (X 1 2 3 4 5 6 7 8 9 10 OFF æU Uæ ON } (X 1 2 3 4 5 6 7 8 9 10 No. 3 : OFF No. 4 : OFF No. 5 : ON U U U U ON 1 2 3 4 5 6 7 8 9 10 No.
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Installation Manual Installation APPLICATIONS -Space-Heating Applications- WARNING { Iv } } P ] ]v ` ] `]R]v o}ro}} ˙uU v ] v v ] } R}o ]voo ]v R ˙uX R] ]o]}v (o}` oo v˘ } R o]]}v ]PuX TR (o}` ]uv u (}oo}` . { Toxic chemicals used in boiler treatments such as alcohol, glycerol and glycol groups must not be introduced into the system if the system incorporates an open-loop potable water system.
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Installation Manual Installation -Dual-purpose hot water heating(Domestic and Space Heating): Diagrammatic layout of radiant heating and domestic water heater per Mass. code. All water piping should be insulated in accordance with 780 CMR ~MR'vP˙} Atmospheric vacuum breaker TRu}u]˘]vPo HvPC}]o (used with air-handler) Check valves 50’-0” maximum distance from water heater to fan coil. (Developed length) Not including }]o]vRvPv] Drain Water plug .
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Installation Manual Installation INITIAL OPERATION FORYOUR SAFETYU READ BEFORE OPERATING { Rl C R GAS v WATER ONNE C CTIONS for leaks before firing unit for the first time. { Open the main gas supply valve to the water heater using only your hand to avoid any spark. Never use tools. If the knob will not turn by hand, do not try to force it; call a qualified service technician. Forced repair may result in a fire or explosion due to gas leaks.
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Installation Manual Installation OPTIONAL ITEMS # 140 Iv}} (T-H3M-DV) M}o 140 O}} (T-H3M-OS) 1. Temperature Remote Controller ✓ Included with the water heater 2. Pipe Cover ✓ ✓ 3. Neutralizer Kit ✓ ✓ 4. 4-inch Exhaust Sidewall Vent Terminator (Hood) and 4-inch Wall Thimble ✓ 5. 3-inch Concentric PVC Termination ✓ 6. Recess Box X Tu ıııæ Ru} ~TMrREZ ✓ C}v}ooP The temperature remote controller has three functions.
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Installation Manual Installation X r]vR E˘R S]`oo Vv Tu]v} ~H}}Z v r]vR Woo TR]uoP D]]]}v 4" Wall Thimble (4"-7") 4" Wall Thimble (5"-10") 4-inch Exhaust Sidewall Vent Terminator (Hood) 4" Exhaust Sidewall Vent Terminator (Hood) 4" Exhaust Sidewall Vent Terminator (Hood) + 4" Wall Thimble (4"-7") 4" Exhaust Sidewall Vent Terminator (Hood) + Wall Thimble (5"-10") 4-inch Wall Thimble P• 9008345005 9008346005 9007999005 9008004005 9008005005 They are used when venting out through the wall.
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Owner's Guide Owner's Guide CONGRATULATIONS Congratulations and thank you for choosing our tankless water heater. Before use, we recommend that you read through this safety manual carefully. Please refer to the back of the manual for details about the warranty. Keep this manual for future reference. If you lose the manual, contact the manufacturer or your local distributor. When you call, please tell us the model number and the serial number of your unit written on the rating plate of the water heater.
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Owner's Guide Operating Safety OPERATING SAFETY FORYOUR SAFETY READ BEFORE OPERATING WARNINGP 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 water heater does not have a pilot. It is equipped with an ignition device that automatically lights the burner. Do not try to light the burner by hand. B. BEFORE OPERATING smell all around the water heater area for evidence of leaking gas.
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Owner's Guide Operating Safety ANGE D R V} (}u (ouuo o]] `]oo ˘o} v R (] ]vP R } vX Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the water heater. Keep flammable products: 1. Far away from heater 2. In approved containers 3. Tightly closed 4. Out of children's reach R }v v R (}oo}` ` uv(X R Vapors: 1. Cannot be seen 2. Vapors are heavier than air 3. Go a long way on the floor 4.
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Owner's Guide Normal Operation NORMAL OPERATION TR]oo }vo}`R}`v˘uo DISPLAY OF THE CONTROLLER }(R]o˙}(R}v}ooXTR ]o˘˙u˙]+(}u˘uoX INFO }v B D]o˙ R E uR'}v]U R }}v u} ] o in the following sequence. Inlet water temperature Outlet water temperature INUSE LED HOT COLD Water G}` ~G vZ BY LED ONlOFF }v B ~OvPZ Press this button to start or stop operation. The indicator turns on when the heater is ready for operation.
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Owner's Guide Normal Operation TEMPERATURE SETTINGS -Using controllerO]}v Sv X Turn on the 120 VAC power supply to the water heater. X Press the ONlOFF button on the controller in order to turn the controller on. X When ON, the STAND BY LED is lit. X It shows the set temperature on its display as shown in the picture on the right. (EX.: 120 °F) Press the "HOT" button or the OLD C temperature setting of the unit. Iv]vP (}u u £F~æ £CZ } æ }v R }v}oo (EX.
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Owner's Guide Normal Operation ADDTIONAL FEATURES -Information modeYou can get some information about the water heater condition by pressing the "INFO" button. For more information, follow the procedures below: O]}v Sv }v R }v}oo X Inlet water temperature will be displayed on the controller by pressing the INFO button. Inlet water temperature (EX.: 60 °F) X Outlet water temperature will be displayed on the controller by pressing the INFO button.
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Owner's Guide Normal Operation FLOW { The flow rate through the water heater is limited to a maximum of 7.0 GPM (26.5 L/min). { The temperature setting, along with the supply temperature of the water will determine the flow rate output of the water heater. { Please refer to the temperature vs. gallons per minute charts on p. 54 to determine the likely flow rates based on your local ground water temperature and your desired outlet water temperature.
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Owner's Guide Normal Operation MAINTENANCE AND SERVICE Turn off the electrical power supply and close the manual gas shutoff valve and the manual water control valve before servicing. WARNING { { { { { Clean the cold-water inlet filter. (Refer to the Unit Draining and Filter Cleaning Section on this page.) Be sure that all openings for combustion and ventilation air are not blocked. The venting system should be checked annually for any leaks, corrosion, blockages or damage.
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Owner's Guide Normal Operation DESCALING THE UNIT Hard water is a severe problem for the copper coils inside heat exchangers. Heat exchanger failure due to scale buildup from hard water conditions is NOT covered by warranty. It is highly suggested that a scale inhibitor be installed before the cold water inlet after this procedure is done. 1) TOOLS ‐ Gather the following materials: W a. Pump: The pump should provide a minimum of 1 H gpm through the heater. b. Descaling Solution c. Water hoses H C d.
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Owner's Guide Troubleshooting TROUBLESHOOTING GENERAL TEMPERATURE v AMOUNT OFHOT WATER PROBLEM SOLUTIONS It takes a long time to { The time it takes to deliver hot water from the water heater to your get hot water at the fixtures depends on the length of piping between the two. The longer fixtures. the distance or the bigger the pipes, the longer it will take to get hot water.
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Owner's Guide Troubleshooting PROBLEM { { { { { { Is the power on the water heater? Is the gas on? Is the flow rate over 0.5 GPM (1.9 L/min)? (p. 37) Is the filter on cold water inlet clean? (p. 41) Check for reverse connection and cross connection. (p. 22) If you use the remote controller and/or temperature controller, is the power button turned on? (p. 37 and 38) Check if the inlet temperature is too high. This is normal.
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Owner's Guide Troubleshooting ERROR CODES -General- { The water heater has self-diagnostics for safety and convenience when troubleshooting. { If there is a problem with the water heater itself, or the installation of the unit, the error code will be displayed on the temperature controller and remote controller. { Consult with the table on the following pages for the description of each error code.
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Owner's Guide Troubleshooting -Fault Analysis of Error Codes- If the error code is displayed on the computer board of the water heater or remote controller and/or temperature controller, please check the following. After checking, }vo `]R R uv( . Ru} 031 101 111 121 311 321 341 Gv LED One Time Mo(v]}v ]]}v D]Pv}] Incorrect DIPswitch { Check the DIPswitch settings on the PCB (Part #701). setting Five Times Warning for the { Check if the gas type of the water heater matches the gas supplied to it.
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Owner's Guide Troubleshooting Ru} Gv LED Mo(v]}v ]]}v D]Pv}] 391 Two Times 510 Six Times 551 Six Times 611 Four Times 701 711 One Time One Time Computer board fault { Check for connection/breakage of wires (Part #711). Gas solenoid valve { Refer to the 111 and 121 error codes. drive circuit failure 721 Six Times False flame detection { Check if there is leaking from heat exchanger (Part #401).
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Owner's Guide Components Diagram COMPONENTS DIAGRAM C uo˙ Indoor model 003 Outdoor model 052 052 007 004 004 052 001 714 001 704 006 702 704 005 050 002 u} Tu 052 002 Tu }v}oo }v}oo Iv}} u}o 722 721 724 721 723 056 48 Page
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Owner's Guide Components Diagram C}u } uo˙ 701 709 707 710 103 711 716 708 402 408 for Indoor model 407 for Outdoor model 713 SP 706 402 060 }˘ uo˙ 120 053 712 710 703 705 701 712 49 Page
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Owner's Guide Components Diagram vB uo˙ Burner assembly 101 104 115 053 053 108 107 401 106 116 708 053 110 061 109 102 111 709 112 117 053 103 105 Manifold assembly 114 113 053 064 707 054 150 119 120 709 151 057 055 062 053 055 117 051 711 50 118 Page
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Owner's Guide Components Diagram W W˙ uo˙ Iv}} O}} M}o M}o 417 455 467 412 063 154 452 063 417 463 455 063 458 463 152 455 B 418 467 455 E 455 458 467 455 A 458 455 A 053 463 455 467 063 458 153 463 B 419 465 466 064 715 464 413 450 053 for Indoor model A 053 451 413 401 B 411 058 E 451 C 414 460 462 468 052 461 D 451 408 059 403 052 51 Page 402 459 D 457 456 406 404 405 416 409 415 414 453 457 C 451 413 458 455 454 410 416 052 453 05
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Owner's Guide Parts List PARTS LIST Iu 001 002 003 004 005 006 007 050 051 052 053 054 055 056 057 058 059 060 061 062 063 064 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 • P D]]}v u}o N/A N/A N/A N/A 320273-350 N/A 319143-510 320273-352 N/A 319143-025 319143-325 319143-026 319143-060 319143-326 319143-063 N/A 319143-201 319143-087 319143-328 N/A 319143-059 319143-048 320273-497 319143-330 320273-353 320273-354 320273-356 319143-443 319143-043 319143-031 320273-557 3
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Owner's Guide Parts List Iu • P D]]}v u}o • TrHM u}o 150 151 152 153 154 401 O-ring P18 NBR (Black) O-ring P20 NBR (Black) Silicon ring for Outdoor model Exhaust port for Outdoor model Silicon ring Heat exchanger assembly for 140 Indoor and Outdoor 319143-350 319143-057 319143-370 319143-121 319143-065 320273-556 EZP18 EK042 EK442 EX13J EKN50 EK467 402 403 404 405 406 407 408 409 410 411 Flow adjustment valve / Flow sensor Condensate drain port Water inlet Inlet drain plug Inlet water filter Inl
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Owner's Guide Parts List Iu • P D]]}v u}o • TrHM u}o 701 Computer board 320273-369 EK480 702 703 704 707 708 709 710 Rubber grommet Surge box 120 VAC wire for Indoor model 120 VAC wire for Outdoor model 120 VAC Power ON-OFF switch Remote controller wire for Indoor model Remote controller wire for Outdoor model Gas valve wire Flame rod wire Igniter assembly Freeze protection thermostat 319143-426 320273-128 319143-427 319143-546 319143-141 320273-376 319143-473 320273-379 320273-380 320273-381
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Owner's Guide Warranty LIMITED WARRANTY 1. The manufacturer warrants this product against defects in materials or workmanship as described in this document if installed within the United States or Canada.
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{**F uP R } `]R} l]vP } v] u ] ]v R ]voo]}v manual. {**C}vv uP } ]u}o˙ ]voo } ol }( }vv ~]vX {**Av˙ } v} ]voo ]v }uo]v `]R oo o]o o}o }]v]o }U }]vvU v good trade practices. {**Av˙ } }o } } ]voo ]v }] }( R (](˙ ~v R D]] }( C}ou] }( the United States of America and Canada. {**Av˙ } ]voo ]v o]]}v R R ` R } ] u} Rv ]u day.