Rinnai REU-VA3237FFU Setting Controller to Mute, Filling the Tub, Models MC-91 and MCC-91

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Using the Water Smart / Bath Fill Function

Filling the Tub

ON! COLD

HOT

ON! COLD

HOT

1.Press the “Water Smart / Bath Fill” button once. The button will illuminate, a tone will sound, and the word “Bath” will appear next to the temperature setting.

2.The voice prompt will announce “The hot water system is ready. Open the hot water tap.” Open the hot water tap. The “In Use” indicator will illuminate on all controllers. The hot water will begin to flow.

3.When the preset volume of water has been produced then

•the water flow will cease

•the “Water Smart / Bath Fill” button will flash

•a tone will sound

•the voice prompt will announce, “Bath fill is complete. Turn off the bath hot water tap and push the Bath Fill button.”

4. Turn off the bath hot water tap and push the Bath Fill button. The water heater will not allow hot water to flow from any source until the “Water Smart / Bath Fill” button is pushed.

The button light will go out and the word “Bath” will disappear from the display.

Setting Controller to Mute

Models MC-91 and MCC-91

To eliminate the beeps when keys are pressed or to turn the beeps back on, press and hold both the and buttons until a beep is heard (approximately 5 seconds).

VA Series Indoor LS Manual

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Contents ANS Z21.10.3 CSA REU-VA3237FFUTable of Contents R98LSi SpecificationsSafety Behavior and Practices Safety Features Consumer Safety InformationSafety Definitions 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 ClockOverview Using the Water Smart / Bath Fill FunctionSetting the Water Volume Models MC-91 and MCC-91 Setting Controller to MuteFilling the Tub Maintenance Error Fault Remedy Error CodesError Code Table Code Water Quality Trouble Shooting for Common IssuesAccessing Operating Information Rinnai Water Heater Flushing the Heat Exchange Error Code LC orGeneral Instructions Installation InstructionsAttachment of the Water Heater Clearances from ApplianceGeneral Instructions Electrical ConnectionGas Piping Pipe Sizing Procedure Example Freeze Protection Water PipingPressure Relief Valve 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 SystemsCondensate Venting InstructionsIntake / Exhaust Guidelines Maximum Vent Length Termination Vent ProductsManufacturer Product Parts 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 OperatingOutlet Flow Data Technical DataPressure Drop Curve 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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