Rinnai REU-VA3237FFU installation manual Electrical Connection, Gas Piping, General Instructions

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Electrical Connection

The water heater requires a standard 3 prong 120 VAC, 60 Hz properly grounded wall outlet. Plug the 6ft long power cord into the wall outlet.

Gas Piping

General Instructions

•A manual gas control valve must be placed in the gas supply line to the Rinnai water heater. A union can be used on the connection above the shut off valve for the future servicing or disconnection of the unit.

•Check the type of gas and the gas inlet pressure before connecting the Rinnai water heater. If the Rinnai water heater is not of the gas type that the building is supplied with, DO NOT connect the water heater. Contact the dealer for the proper unit to match the gas type.

•Check the gas supply pressure immediately upstream at a location provided by the gas company. Supplied gas pressure must be within the limits shown in the Specifications section.

•Before placing the appliance in operation all joints including the heater must be checked for gas tightness by means of leak detector solution, soap and water, or an equivalent nonflammable solution, as applicable. (Since some leak test solutions,

including soap and water, may cause corrosion or stress cracking, the piping shall be rinsed with water after testing, unless it has been determined that the leak test solution is non-corrosive.)

•Always use approved connectors to connect the unit to the gas line. Always purge the gas line of any debris before connection to the water heater.

•The gas supply line shall be gas tight, sized, and so installed as to provide a supply of gas sufficient to meet the maximum demand of the heater and all other gas consuming appliances at the location without loss of pressure.

•Any compound used on the threaded joint of the gas piping shall be a type which resists the action of liquefied petroleum gas (propane / LPG).

•Refer to an approved pipe sizing chart if in doubt about the size of the gas line.

VA Series Indoor LS Manual

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Contents ANS Z21.10.3 CSA REU-VA3237FFUTable of Contents R98LSi SpecificationsSafety Definitions Consumer Safety InformationSafety Behavior and Practices Safety Features Operating Instructions Features Available on Remote ControllersFeatures Description of OperationMC-91-1US & MCC-91-1US Remote Controllers ModelsBC-100V-1US Temperature Options Without a Remote Controller Setting the TemperatureModel Temperature Settings Available ºF Temperature RangesSetting the Sound Volume Voice Prompt Setting the ClockSetting the Water Volume Using the Water Smart / Bath Fill FunctionOverview Filling the Tub Setting Controller to MuteModels MC-91 and MCC-91 Maintenance Error Code Table Error CodesError Fault Remedy Code Accessing Operating Information Trouble Shooting for Common IssuesWater Quality Rinnai Water Heater Flushing the Heat Exchange Error Code LC orGeneral Instructions Installation InstructionsAttachment of the Water Heater Clearances from ApplianceGas Piping Electrical ConnectionGeneral Instructions Pipe Sizing Procedure Example Pressure Relief Valve Water PipingFreeze Protection Rinnai Water Heater Freeze Protection PipingQTY Recommended Piping for Basic InstallationFor this application Recommended Piping for Circulation SystemsYears On Heat Exchanger Years On Parts Optional Piping for Circulation SystemsIntake / Exhaust Guidelines Venting InstructionsCondensate Maximum Vent Length Manufacturer Product Parts Vent ProductsTermination Flue Terminal Clearances ANS Z21.10.3 CSA Area Where Bterminal is not PermitttedInside Corner Additional Clearances Vent TerminalFlue Installation Concentric Venting R50LSi, R75LSi, R94LSi Venting Clearances to Combustibles Flue Installation R98LSi, R98LSi-ASMEAir Intake Assembly Exhaust Pipe AssemblyVertical Terminations Horizontal with Concentric TerminationGuidelines High Altitude InstallationsConnecting Multiple Water Heaters Number of Connected Water Heaters Accessories NecessaryCable Lengths and Size Remote Controller InstallationConfigurations LocationSecuring screw Wiring hole 21/32 Operating Instructions For Your Safety Read Before OperatingPressure Drop Curve Technical DataOutlet Flow Data Space Heating R50LSi, R75LSi, R94LSi R98LSi, R98LSi-ASME DimensionsHOT Ladder DiagramVA LS Series Period of Coverage from date of purchase Warranty InformationLimited Warranty Consumer SupportWhat will Rinnai do? Rinnai’s other fine products 103 International Drive

REU-VA3237FFU specifications

The Rinnai REU-VA3237FFU is a high-efficiency gas continuous flow water heater designed to provide instant hot water on demand. It is particularly well-suited for households that require a reliable source of hot water while maximizing energy savings. This unit boasts impressive features that set it apart in the market, catering to both residential and commercial applications.

One of the standout characteristics of the REU-VA3237FFU is its energy-efficient design. With an impressive energy factor of 0.89, this model delivers exceptional performance, maximizing energy use and minimizing waste. The continuous flow technology means that there is virtually no wait time for hot water, making it ideal for busy households with multiple points of use.

The REU-VA3237FFU employs advanced temperature control technology. It features an intelligent digital controller that allows users to easily set their desired water temperature. This ensures consistent delivery of hot water at the desired temperature, enhancing comfort while also promoting safety by reducing the risk of scalding. The model also incorporates a safety lock function that can prevent accidental changes to the temperature setting.

In terms of durability and design, the Rinnai REU-VA3237FFU showcases high-quality build materials that contribute to its longevity. The stainless steel heat exchanger is resistant to corrosion, ensuring a long life expectancy and reliable performance over time. Additionally, the compact design makes it easy to install in tight spaces, whether indoors or outdoors, adapting to various installation environments.

Moreover, the Rinnai REU-VA3237FFU features a low NOx emission system, aligning with environmental standards and regulations. This eco-friendly technology makes it an excellent choice for environmentally conscious consumers looking to reduce their carbon footprint while enjoying the benefits of modern hot water systems.

The Rinnai REU-VA3237FFU is also equipped with a self-diagnostic system, which allows for easier maintenance and troubleshooting. This feature increases the unit's reliability by monitoring its performance and alerting users to any potential issues before they develop into significant problems.

In summary, the Rinnai REU-VA3237FFU is a standout continuous flow water heater that combines energy efficiency, durability, and advanced technology. With its smart temperature control, compact design, and environmentally friendly features, it is an outstanding choice for anyone seeking a dependable and efficient hot water solution.
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