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A.O. Smith ADAPT THR-160M Installation Instructions And Use & Care Manual

A.O. Smith ADAPT THR-160M Installation Instructions And Use & Care Manual

Residental gas tankless water heaters

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Installa on Instruc ons and
Use & Care Guide
ADAPT™ Residen al Gas
Tankless Water Heaters
Residen al On-Demand Gas Tankless Water Heaters
Read this manual and the labels on the water heater before you install,
operate, or service it. If you have diffi culty following the direc ons, or
aren't sure you can safely and properly do any of this work yourself:
Call our Technical Assistance Hotline which is listed on your warranty. We can
help you with installa on, opera ons, troubleshoo ng, or maintenance. Before
you call, write down the model and serial number from the water heater's ra ng
plate.
Incorrect installa on, opera on, or service can damage the water heater, your
house and other property, and present risks including fi re, scalding, electric
shock, and explosion, causing serious injury or death.
WARNING: If the informa on in these instruc ons
is not followed exactly, a fi re or explosion may
result causing property damage, personal injury or
death.
Do not store or use gasoline or other fl ammable vapors
and liquids in the vicinity of this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any
phone in your building.
• Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instruc ons.
• If you cannot reach your gas supplier, call the fi re de-
partment.
Installa on and service must be performed by a qualifi ed
installer, service agency or the gas supplier.
Keep this manual with the heater for future reference whenever maintenance, adjustment or service is required.
(X3™ TECHNOLOGY available on some models)
Retain your original receipt as proof of purchase.
MODELS:
THR-160M, THR-180M, THR-199M
THR-160X3, THR-180X3, THR-199X3
LOW LEAD
CONTENT
100380402_2000628591
June 2024

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Summary of Contents for A.O. Smith ADAPT THR-160M

  • Page 1 Installa on Instruc ons and Use & Care Guide ADAPT™ Residen al Gas Tankless Water Heaters Residen al On-Demand Gas Tankless Water Heaters (X3™ TECHNOLOGY available on some models) Read this manual and the labels on the water heater before you install, operate, or service it.
  • Page 2: Table Of Contents

    TABLE OF CONTENT WATER HEATER BASICS ..................4 COMPONENT VIEW (X3® Model Shown) ....................4 TYPICAL INSTALLATIONS (X3® Model Shown) ....................5 DIMENSIONS .............................6 SUPPLY CONNECTIONS ..........................7 SPECIFICATIONS ............................8 IMPORTANT SAFETY INFORMATION ..............9 RISKS DURING INSTALLATION AND MAINTENANCE ................10 RISKS DURING OPERATION ........................10 GETTING STARTED ..................12 Read Before Installa on ..........................12 Included Items ............................14...
  • Page 3 TABLE OF CONTENTS X3® Technology ............................40 Pressure Relief Valve ..........................40 Condensate Drain ............................41 Printed Circuit Board Ba ery ........................42 Electrical Connec ons ..........................42 Cascade System ............................43 Accessory Connec ons ..........................45 OPERATION ....................46 FOR YOUR SAFETY, READ BEFORE OPERATING ..................46 Start-up Instruc ons ..........................46 Shut-Down Instruc ons ...........................46 Emergency Shut-Down ..........................46...
  • Page 4: Water Heater Basics

    WATER HEATER BASICS COMPONENT VIEW (X3® Model Shown) Exhaust Port Inlet Port Heat Exchanger Igniter Air Pressure Switch Flame Sensor Igniter Rod Burner Assembly Fan Motor Assembly Venturi Assembly Pump Condensate Trap Flow Sensor Control Valve Assembly Bypass Valve Gas Valve Gas Valve Pressure Relief Valve (M Model: Field Supplied)
  • Page 5: Typical Installations (X3® Model Shown)

    WATER HEATER BASICS TYPICAL INSTALLATIONS (X3® Model Shown) Outlet Venting Inlet Air NOTE: Condensate Drain not shown for clarity. Expansion Typical Installation Tank Pressure Relief Valve (Drain Line not shown for clarity) Shutoff Valve Water Shutoff Valve Water Water Shutoff Gas Line Shutoff Valve...
  • Page 6: Dimensions

    WATER HEATER BASICS DIMENSIONS Wall Studs Dry Wall 6.58 in 16.72 cm 16.12 in 40.96 cm Water heater wall 8.31in 3.22 in 21.12 cm 8.22 cm mount contact point. Wall 5.08 in 12.90 cm 16.54 in 6.70 in 42.00 cm 17.00 cm 5.09 in 12.92 cm...
  • Page 7: Supply Connections

    WATER HEATER BASICS SUPPLY CONNECTIONS WALL Table 1: Supply Connec ons Item DESCRIPTION MEASUREMENT CONNECTION SIZE HOT OUTLET 9.00 in/22.86 cm 3/4 in MNPT GAS INLET 6.90 in/17.52 cm 1/2 in MNPT CONDENSATE 3.20 in/8.07 cm 1/2 in MNPT COLD INLET 4.80 in/12.20 cm 3/4 in MNPT Residen al Gas Tankless Water Heater Use and Care Guide •...
  • Page 8: Specifications

    WATER HEATER BASICS SPECIFICATIONS X3® Models: Come with the X3® Scale Preven on Technology cartridge and pressure relief valve. M Models: Come with the Bypass cartridge installed. All other specifi ca ons are the same. Table 2: Specifi ca ons Model THR-160 THR-180...
  • Page 9: Important Safety Information

    IMPORTANT SAFETY INFORMATION Read and follow all safety messages and instruc ons in this Important informa on to keep manual. Fill out this sec on and keep this manual This is the safety alert symbol. It is used to alert you to in the pocket of the water heater for poten al physical injury hazards.
  • Page 10: Risks During Installation And Maintenance

    IMPORTANT SAFETY INFORMATION To reduce the risk of property • Maintain the Pressure Relief Valve on and adjustment of the valves. damage, serious injury or death, read properly. Follow the maintenance • Water temperatures over 125°F and follow the precau ons below, instruc ons provided by the (52°C) can cause severe burns all labels on the water heater, and...
  • Page 11: Explosion Risk

    IMPORTANT SAFETY INFORMATION To reduce the risk of unusually hot Explosion Risk • Failure to follow these instruc ons water reaching the fi xtures in the can result in serious injury or death High pressures in the house, install Thermosta c Mixing from carbon monoxide poisoning.
  • Page 12: Getting Started

    GETTING STARTED Read Before Canada: where the proper amount of 178 Rexdale Blvd. combus on air will be available to Installa on Toronto, ON it at all mes without obstruc ons. Canada M9W 1R3 When installed indoors, the water Review all of the instruc ons heater can be direct vented.
  • Page 13 GETTING STARTED • Failure to observe these warnings could result in severe personal injury, death, and/or property damage. Ven ng/Combus on: • Do not install the heater where water, debris or fl ammable vapors may get into the fl ue terminal. This may cause damage to the heater and void the warranty.
  • Page 14: Included Items

    GETTING STARTED • For homes with water lines using • An appliance dolly or hand truck to Before you start, be sure you threaded connectors suitable for the move the water heater. have the following tools and supplies: specifi c type of plas c pipe used: Recommended Accessories CPVC or PEX (cross-linked polyeth- •...
  • Page 15: Available Accessories

    GETTING STARTED Available Accessories Table 5: Accessories available for your Water Heater Item Descrip on Add to an M model heater to prevent scale buildup and eliminate the need X3® Cartridge for annual descaling maintenance. • P/N 100368986 Wi-Fi Module for electronically connec ng tankless water heaters to the Wi-Fi Module Kit Internet and adapter to connect to the water heater.
  • Page 16 GETTING STARTED Item Descrip on Neutralizer Assembly neutralizes the condensate (acidic water) that forms in the heat exchanger of the water heater. It connects to the condensate Neutralizer drain port of the water heater by using connectors included with the Assembly Kit neutralizer kit.
  • Page 17: Installation

    INSTALLATION Installa on Environment code in Canada, as well as applicable are for wood studs only. When local building codes. moun ng on any other surface use fasteners approved for that Proper moun ng and clearance wall material/construc on. Make Condensate Drain line The water heater shall be securely sure to level the bracket.
  • Page 18: Combus On Air And Ven Ng Installa On

    INSTALLATION Combus on Air and Example: corrosive or acid-forming chemicals such as sulfur, fl uorine, and chlorine. Ven ng Installa on Ven la on with outside air will reduce Gas Burning Appliance Btu/hr Ra ng these chemicals, but it may not Gas Water Heater 199,000 Combus on Air...
  • Page 19 INSTALLATION Example: B1: Determine type of For example, an installa on area that requires openings with 100 square ven la on (294,000 / 1000) x 50 = 14,700 inches of free area would need 134 There are several types of ven la on If the air volume of the room is less square inch openings if using metal that can be used:...
  • Page 20 INSTALLATION Combus on Air Supply Op ons Gable vent to outdoors Outlet air to Install above 1 in (6.5 cm per 4,000 Btu/hr Outlet air to per 4,000 Btu/hr per 4,000 Btu/hr Alternate Air Inlet Figure 11 -  Ver cal Duct Openings Figure 13 - ...
  • Page 21: Ven Ng

    INSTALLATION Ven ng • Do not weld, glue, or permanently • Locate the vent termina on so that bond the vent pipe to the water it cannot be blocked by any debris, WARNING! Carbon Monoxide heater’s vent collar. at any me. Most codes require that Hazard.
  • Page 22 INSTALLATION Table 7: Plas c Vent Pipe Table Item Material United States Canada Schedule 40 PVC ANSI/ASTM D1785 PVC-DWV ANSI/ASTM D2665 Exhaust pipe and Schedule 40 CPVC ANSI/ASTM F441 Fi ngs ULC S636 Cer fi ed Schedule 40 ABS-DWV ANSI/ASTM D2661 Polypropylene UL-1738 Materials Only...
  • Page 23: Installing The Vent Pipe

    INSTALLATION Installing the Vent Pipe Exhaust Vent for Clamp Indoor Installa on WARNING! Improper installa on can cause nausea or asphyxia on, ABS, PVC, CPVC or severe injury or death from carbon polypropylene vent monoxide and fl ue gases poisoning. Self-Tapping Screw Improper installa on will void The Indoor model can be vented with...
  • Page 24: Typical Ven Ng Confi Gura Ons

    INSTALLATION Typical Ven ng Confi gura ons: The following are typical ven ng confi gura ons examples. Direct Vent Horizontal Installa on Examples Power Vent Horizontal Installa on Example Hanger Hanger Direct Vent Ver cal Installa on Examples Power Vent Ver cal Installa on Example Roof Roof Flashing...
  • Page 25 INSTALLATION Table 9: - Vent Termina ons LOW PROFILE TERMINATION If used in ver cal posi on, the exhaust port must be placed in the upper side. IPEX System 1738® Vent Pipe Size PVC Kit Number IPEX PVC Part Number PVC Part Number 2 in 100187903...
  • Page 26 INSTALLATION POLYPROPYLENE TERMINATION TEE Vent Pipe Size Centrotherm Part Number 2 in ISTT0220 3 in ISTT0320 POLYPROPYLENE RADIUS ELBOWS Vent Pipe Size Centrotherm Part Number 2 in 45° EXHAUST ELBOW ISELS0245UV 3 in 45° EXHAUST ELBOW ISELS0345UV 2 in 87° INLET ELBOW ISELS0287UV 3 in 87°...
  • Page 27 INSTALLATION Vent Termina on Clearances Inside corner = Vent terminal detail = Air supply inlet = Area where the terminal Fixed Operable Fixed closed closed Operable Regulator/Gas meter vent outlet Canada Installa ons US Installa ons Direct vent and other than direct vent Direct vent Other than direct vent A Clearance above grade, veranda, porch, deck, or balcony...
  • Page 28: Clearances For Sidewall Termina Ons

    INSTALLATION Clearances for Sidewall Mul ple DV Sidewall Exhaust and/or direct vent sidewall termina ons should be at least 2 Termina ons Termina ons (610 mm) away from an opposite A direct vent (DV) termina on must surface/wall. Do not place the WARNING! Improper installa on be at least: termina on directly in front of an...
  • Page 29: Clearances For Roo Op Termina Ons

    INSTALLATION Clearances for Roo op In Canada, follow the current edi on • Intake terminals: 1 (305 mm) of B149.1, Natural gas and propane spacing between each Termina ons installa on code as well as local • Exhaust terminals: 1 (305 mm) and provincial codes.
  • Page 30 INSTALLATION Typical PDV Concentric Installation 1 ft (305 mm) min. Anticipated Snow Level FRONT FRONT ISO VIEW 3 ft (914 mm) min. 1 ft (305 mm) min. 1 ft (305 mm) min. above anticipated snow level. 1 ft (305 mm) min. above anticipated snow level.
  • Page 31 INSTALLATION Typical Flat Roof Terminations (Both Single and Multiple) Wall Wall Anticipated Snow Level Anticipated Snow Level FRONT FRONT ISO VIEW ISO VIEW Wall Wall TOP VIEW TOP VIEW 3 ft (914 mm) min. FRONT FRONT 3 ft (914 mm) min. 2 ft (610 mm) min.
  • Page 32: Exhaust Ven Ng For Outdoor Installa On

    INSTALLATION INDOOR CONFIGURATION Exhaust Ven ng for Secure the Outdoor Vent Cap to the water heater at each Outdoor Installa on corner with the screws removed earlier. See Figure 27. Turn off power and the gas supply to the water heater. Remove the four screws from the top plate of the water heater as shown in the fi...
  • Page 33: Gas Supply And Gas Pipe Sizing

    INSTALLATION Gas Supply and Gas local and state/provincial codes, or Install a full port manual gas in the absence of these codes, the shutoff valve between the Pipe Sizing current edi ons of ANSI Z223.1/ water heater and the gas NFPA 54, Na onal Fuel Gas Code in supply line.
  • Page 34: Natural Gas Supply Piping

    INSTALLATION Natural Gas Supply Piping Maximum delivery Capacity in Cubic Feet of Gas per Hour (based on IPS Pipe carrying Natural Gas with 0.60 Specifi c Gravity with a Pressure Drop of 0.5 in W.C.). Based on Energy Content of 1,000 BTU/ : The water heater requires 199 /h for the THR-199, 180 /h for the THR-180, 160...
  • Page 35: Gas Conversion Instruc Ons

    INSTALLATION Gas Conversion cavitate or damage the water heater's op mum fl ow. heat exchanger. This equipment • Install insula on (or heat tape) on Instruc ons must be installed according to its the water pipes especially if the manufacturer's instruc ons. indoor installa on area is subject to WARNING! An improper fi...
  • Page 36: Recircula On

    INSTALLATION Recircula on is recommended to set the Pump mode, the pump will run un l the Timers to ON during mes when inlet water temperature reaches Internal Pump the home is occupied. The water the deac va on temperature set in heater will operate as an on- mode A04 for Recircula on with a This water heater comes with an...
  • Page 37: Expansion Tank

    INSTALLATION no less than 2 gpm (7.6 l/m) and la on pump to cavitate and may ordinances for addi onal installa on no more than 4 gpm (15.1 l/m) per reduce the water fl ow rate. These requirements. Refer to the water ac vated heater.
  • Page 38: Combina On Potable Water And Space Hea Ng

    INSTALLATION Combina on Potable Care must be taken by the installing • Water Tubing Size, Length, and contractor or design engineer to Material. Refer to the water Water and Space size the components of the system tubing manufacture for pressure Hea ng appropriately for fl...
  • Page 39: Dual Purpose Water Hea Ng For The State Of Massachuse S

    INSTALLATION Dual Purpose Water to priori ze the domes c water valve is only required in the State system over the hea ng system. of Massachuse s. There are Hea ng for the State a wide variety of varia ons to of Massachuse s •...
  • Page 40: X3® Technology

    INSTALLATION X3® Technology X3® Cartridge Removal Locate the three (3) screws located in the hardware bag Disconnect power to the WARNING! DO NOT operate that is located on the top of water heater by unplugging water heater un l either the X3® the heater carton.
  • Page 41: Condensate Drain

    INSTALLATION Refer to the pressure relief valve situa on. Do not plug the pressure If the drain line is required to have manufacturer's instruc ons for relief valve. bends, ensure that there are no inspec on and maintenance The pressure relief valve must be kinks that will restrict the fl...
  • Page 42: Printed Circuit Board Ba Ery

    INSTALLATION Printed Circuit Board Plug-in Connec on Remove the small tab from the ba ery that is blocking its Ba ery The water heater should be connec on. Once the tab is plugged into a 120VAC, 60 HZ removed make sure the ba ery is fully WARNING! Working on an energized ground electrical outlet.
  • Page 43: Cascade System

    INSTALLATION factors. These factors vary based access grommet. Route the single Make the electrical on heater model. Contact the harness end of the Cascade Linking connec on to the water heater manufacturer for addi onal Cable through the bo om and around heater.
  • Page 44 INSTALLATION be connected to a Cascade System of Press the UP arrow button to On each Child unit’s UIM, 12 total water heaters. reach the C13 option, then press and hold both the press SETTING button to SETTING and UP buttons until Verify all electrical enter that option.
  • Page 45: Accessory Connec Ons

    INSTALLATION Accessory Connec ons Each accessory has a both a fi ve pin communica on cables can be female connector and a sec on of purchased to extend the length. These cable with a fi ve pin male connector cables are available in 10 This system supports up to three on the end.
  • Page 46: Operation

    OPERATION FOR YOUR SAFETY, replace a fl ooded water heater. Shut-Down Instruc ons Do not a empt to repair the READ BEFORE unit! It must be replaced! Press the “ON/OFF” button OPERATING and wait for the display to Start-up Instruc ons shut-off.
  • Page 47 OPERATION Figure 41 - Ligh ng Instruc ons Residen al Gas Water Heater Use and Care Guide • 47...
  • Page 48 OPERATION Figure 42 - User Interface Display Diagram Table 14: User Interface Display Item Descrip on Water Flow Detected Pump is Opera ng Flame Detected Pump Timer 1 & 2 Ac ve Pump Bu on Time Bu on Up & Down Bu ons Opera on ON/OFF Bu on Se ng Bu on Pump Timer ON/OFF Indicators (only shown when se ng the Pump Timers)
  • Page 49: Temperature Adjustment/Se Ng The Temperature

    OPERATION Temperature Adjustment/Se ng the Temperature With the installa on steps completed, you may adjust the water heater’s temperature se ng if desired. The water temperature set point is factory set to 120°F (49°C). The temperature set point may be increased or decreased in increments by simply pressing the “UP”...
  • Page 50: Unit Conversion Mode

    OPERATION Unit Conversion Mode Table 15: Water Heater Temperature Set Points 120* °F °C Units of measure can be changed from Imperial to Metric and vice versa. For example, temperature can be changed from °F to °C. Flow rate will also change from gallons per minute to liters per minute when this se ng is changed. Follow this procedure to change this se ng.
  • Page 51: Confi Gura On Mode (A Mode)

    OPERATION Press and hold the SETTING bu on to return the display to normal opera on. The new set temperature will appear in the selected unit (Example: 49°C). Confi gura on Mode (A Mode) You can confi gure the water heater to accommodate your applica on from A Mode. Follow the procedure below to access A Mode: 1.
  • Page 52: Se Ng The Clock

    OPERATION Table 18: C Table Se ngs CODE DESCRIPTION OPTIONS 0 – 1,999 (default) (0 - 609) 2,000 – 5,399 (610 - 1,645) Eleva on Se ngs in Feet (meters) 5,400 – 7,699 (1,646 - 2,347) 7,700 – 10,100 (2,347 -3,078) Natural Gas (default) Gas Type Propane...
  • Page 53: Se Ng Recircula On Mode And Recircula On Type

    OPERATION Se ng Recircula on Mode and Recircula on Type Table 20: Recircula on Mode Se ngs Ac va ng the Recircula on Modes & Se ng the Aquasta c Parameters Built-in Controller Press and hold the SETTING bu on to enter A mode. Press the UP arrow to mode A05.
  • Page 54 OPERATION Press the UP or DOWN bu on to scroll to the desired me delay. Press the SETTING bu on to save the se ng. Go to the next step if the se ng in A06 is 0 (recircula on with a return line). Go to step 19 if the se ng in A06 is 1 (crossover valve recircula on).
  • Page 55: Maintenance

    MAINTENANCE Se ng the Pump Timers Table 21: Se ng the pump mers Se ng the Pump Timers Built-in Controller Press and hold the TIME bu on. The display will fl ash the hour value for Pump Timer 1. The Pump Timer 1 symbol and ON will be displayed. Press the UP or DOWN arrow to change the hour to the desired ac va on me.
  • Page 56: Pump Timer Ac Va On

    MAINTENANCE Pump Timer Ac va on Table 22: Pump Timer Ac va on Ac va ng the Pump Timers Built-in Controller Display must be showing the set temperature. Press and release the TIME bu on. The Pump Timer 1 LED will display a er approximately 1 second.
  • Page 57: Regular Maintenance

    MAINTENANCE Regular Maintenance • The pressure relief valve must be Freeze Protec on System manually operated annually to This unit comes equipped with check for correct opera on. Before WARNING! Turn OFF the hea ng blocks as well as the auto- opera ng the valve manually, electrical power supply and close fi...
  • Page 58: Troubleshooting

    TROUBLESHOOTING Unit Draining & Power Cartridge. To remove the X3® Cartridge, remove and keep the Outage 11. Open the manual gas shutoff to 3 screws securing the cartridge the water heater. (Freeze Protec on) in place. Pull down to remove 12.
  • Page 59: General Troubleshoo Ng

    TROUBLESHOOTING General Troubleshoo ng Table 23: Troubleshoo ng Chart PROBLEM SOLUTIONS It takes a long me to • The me it takes to deliver hot water from the water heater to your fi xtures depends on the get hot water at the length of piping between the two.
  • Page 60: Error Codes

    TROUBLESHOOTING Error Codes The water heater has self-diagnos c func ons for safety and convenience when troubleshoo ng. If there is a problem with the installa on or the unit, the error code associated with that failure will be displayed on the built-in controller or remote controller.
  • Page 61 TROUBLESHOOTING Error Error Type Procedure Code WARNING! Working on an energized circuit can result in severe injury or death from electrical shock. 1. Check for a visible fl ame through the sight glass while water is not running through the water heater. If the error s ll occurs, immediately shut-off the water E037 False Flame Detec on heater and contact a qualifi...
  • Page 62 TROUBLESHOOTING Error Error Type Procedure Code 1. Verify the inlet water temperature is not above the water heater’s set tempera- ture. 2. Remove the inlet thermistor (do not lose the o-ring) and check for any dirt or E383 Inlet Water Over-Temp. debris.
  • Page 63 TROUBLESHOOTING Error Error Type Procedure Code 1. Check the pump wiring for a short or disconnec on. Correct any loose connec- ons and replace any damaged wire/connector. 2. Check the inlet fi lter for debris and clean. 3. Check the pump and water lines for debris and clear. E396 Pump - Low Speed 4.
  • Page 64 TROUBLESHOOTING Error Error Type Procedure Code 1. Check the fan motor wiring. Correct any loose connec ons and replace any dam- aged wire/connector. E403 Fan - Low Speed 2. With the water heater power disconnected, check the exhaust vent and air intake piping for any blockages.
  • Page 65 TROUBLESHOOTING Error Error Type Procedure Code 1. Check the fl ame sensor wire for a short or disconnec on. Correct any loose con- nec ons and replace any damaged wire/connector. 2. Check the inlet & heat exchanger thermistor sensor wires for a short or discon- nec on.
  • Page 66 TROUBLESHOOTING Error Error Type Procedure Code 1. Verify the water heater’s opera on is enabled. The heater’s UIM will display the set temperature when enabled. If it is disabled, press the heater’s ON/OFF but- ton to enable the heater’s opera on. 2.
  • Page 67: Component List

    COMPONENT LIST Residen al Gas Water Heater Use and Care Guide • 67...
  • Page 68 COMPONENT LIST 68 • Residen al Gas Tankless Water Heater Use and Care Guide...
  • Page 69 COMPONENT LIST Residen al Gas Tankless Water Heater Use and Care Guide • 69...
  • Page 70 COMPONENT LIST 70 • Residen al Gas Tankless Water Heater Use and Care Guide...
  • Page 71 COMPONENT LIST Residen al Gas Tankless Water Heater Use and Care Guide • 71...
  • Page 72 COMPONENT LIST When ordering repair parts, always give the following informa on: 1. Model and serial numbers. This info should be on the le side of the water heater 2. Part(s) descrip on Item Component List AIR PRESSURE SWITCH CONDENSATE TRAP BURNER DOOR HI-LIMIT FLAME SENSOR HEAT EXCHANGER THERMISTOR...
  • Page 73: Flow Rate

    FLOW RATE Flow Rate Capacity Chart The chart is based on a properly sized gas line and installa on at 0-2,000 . (0-610 m). The water heater will de-rate approximately 3% (NG) or 4.5% (LP) per 1,000 . (305 m) of eleva on increase above 2,000 . (610 m). THR Flow Rate Capacity Chart Temperature Rise (°F) THR-160...
  • Page 74 Copyright © 2024, A. O. Smith. All Rights Reserved...

This manual is also suitable for:

Adapt thr-180mAdapt thr-199mAdapt thr-160x3Adapt thr-180x3Adapt thr-199x3