A.O. Smith W/HOT instruction manual Safe INSTALLATION, USE and Service, Important Definitions

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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 install, use or service this water heater.

All safety messages will generally tell you about the type of hazard, what can happen if you do not follow the safety message and how to avoid the risk of injury.

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 National Fuel Gas Code as it relates to the installation of gas fired water heaters. The qualified installer must also be familiar with the design features of water heaters, and have a thorough understanding of this instruction manual.

•Service Agency: A service agency also 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 National Fuel Gas Code as it relates to the installation of gas fired water heaters. The service agency must also have a thorough understanding of this instruction manual, and be able to perform repairs strictly in accordance with the service guidelines provided by the manufacturer.

•Gas Supplier: The Natural Gas or Propane Utility or service who supplies gas for utilization by the gas burning appliances within this application. The gas supplier typically has responsibility for the inspection and code approval of gas piping up to and including the Natural Gas meter or Propane storage tank of a building. Many gas suppliers also offer service and inspection of appliances within the building.

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Contents Power Vented GAS Models W/HOT Surface Ignition Commercial GAS Water HeatersSafe INSTALLATION, USE and Service Important DefinitionsGeneral Safety General Safety Table of Contents IntroductionRelief Valve Elbow Access Door Typical InstallationReplacement Parts and Deliming Products Condensate Hose and Drain PAN Capacity and Gas and Electrical Characteristics ROUGH-IN-DIMENSIONSRough-In-Dimensions Mixing Valve Usage Locating the NEW Water Heater Facts to Consider about the LocationInsulation Blankets ALL AIR from Inside Buildings See ALL AIR from Outdoors See Figures 7, 8Water Piping Installing the NEW Water HeaterChemical Vapor Corrosion TEMPERATURE-PRESSURE Relief Valve Valve and Pipe Insulation if suppliedGAS Piping with Flexible Connector GAS PipingFilling the Water Heater Vent Pipe AssemblySediment Traps VentingVent Hoods MAY be Extremely HOT During Operation Horizontal Vent ClearancesCanadian Horizontal Vent Clearances Vent Pipe Termination Planning the Vent System CondensateVent Terminal INSTALLATION, Sidewall Blower Assembly InstallationInstallation of Vent System Power Vent Wiring Schematic Figure Vent Termination FigureInstallation of Vent SYSTEM, Sidewall Installation of Vertical Vent SystemVent Attenuation Assembly Installation Vertical VAA Installations RecommendedInch vent Vertical VAA Installations Inch vent Horizontal VAA InstallationsVent Pipe Preparation Recommended BRUSH* Size for Primer Cement ApplicationsStep F Step BStep E Step GWhat to do if YOU Smell GAS Power Before ServicingBurner. Do not try to light the burner by hand Do not TRY to Light the Burner by HandDisplay Temperature RegulationTemperature Indicators Temperature Adjustment Buttons D E FOperational Conditions For Your InformationStart UP Conditions Venting System Inspection Periodic MaintenanceBurner Cleaning Burner Operation and InspectionDraining TEMPERATURE-PRESSURE Relief Valve OperationAnode ROD Inspection Service Leakage CheckpointsTroubleshooting Guidelines Trouble ShootingD E F Troubleshooting Guidelines Tank Service and Repair ExpensesClaim Procedure ALL Other Parts

W/HOT specifications

A.O. Smith, a leading manufacturer of water heating solutions, has made its mark in the industry with innovative products that combine efficiency, reliability, and advanced technology. Among its standout offerings is the A.O. Smith W/HOT series, designed to meet the diverse needs of residential and commercial customers.

The W/HOT series showcases a variety of tankless water heaters characterized by their ability to provide endless hot water on demand. Unlike traditional tank water heaters, which can run out of hot water during heavy usage, the W/HOT series ensures a constant supply, making it an ideal choice for families and businesses with high hot water needs. This feature not only enhances convenience but also optimizes energy usage by eliminating the standby heat loss associated with storage tanks.

One of the key technologies integrated into the W/HOT series is the microprocessor control system. This intelligent technology allows the unit to monitor water usage patterns and adjust operation accordingly. By optimizing heating cycles based on actual demand, this feature helps improve energy efficiency, resulting in lower utility bills without compromising performance.

The W/HOT series also incorporates advanced heat exchanger technology, enabling rapid heating of water as it passes through the system. This means minimal wait time for hot water and reduced energy consumption, as the unit only heats water when it is needed. The heat exchangers are designed for durability and effective heat transfer, helping to extend the overall lifespan of the unit.

Safety is a top priority in the design of A.O. Smith water heaters. The W/HOT series is equipped with multiple safety features, including a built-in thermal shut-off switch and safety sensors that prevent overheating. Additionally, the units are designed to comply with industry standards and regulations, ensuring peace of mind for users.

Installation flexibility is another defining characteristic of the W/HOT series. These tankless water heaters can be installed in various locations, requiring minimal space compared to traditional units. Their compact design makes them suitable for tight spaces, such as closets or utility rooms.

Overall, the A.O. Smith W/HOT series represents a commitment to innovation and quality in water heating solutions. Its combination of tankless design, advanced technology, and safety features makes it an excellent choice for those seeking efficient and reliable hot water access. Whether for residential or commercial use, A.O. Smith continues to lead the way in delivering top-tier water heating solutions that meet the evolving needs of consumers.
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