Temperature Ranges, Setting the Clock

Temperature Ranges

This water heater will attempt to provide hot water at the temperature even when the water flow is varied or when more than 1 tap is in use. The water heater can deliver water at only one temperature setting at a time. The available temperatures for a given model are provided below.

Model				Temperature Settings Available (ºF)										*	*	*
R50LSi	98	100	102	104	106	108	110	115	120	125	130	135	140	150	160

R75LSi	98	100	102	104	106	108	110	115	120	125	130	135	140	150	160

R94LSi
R98LSi	98	100	102	104	106	108	110	115	120	125	130	135	140	150	160	185
R98LSi-ASME

Temp in Celsius ºC	37	38	39	40	41	42	43	46	49	52	54	57	60	66	71	85

*These settings require the MCC-91 controller. When the MCC-91 controller is connected, these higher temperature are available on all controller models in the system.

If a space heating application requires higher than 140º F then a mixing valve shall be installed to temper the water temperature to 140º F or less for domestic use.

Suggested temperatures are

•	Kitchen	120 ºF (49º C)
•	Shower	98º - 110º F (37º - 43º C)
•	Bath Fill	102º - 110º F (39º - 43º C)

These temperatures are suggestions only.

Temperature lower than 98º F (37º C) can be obtained at the tap by mixing with cold water.

To change the temperature scale from Celsius to Fahrenheit or vice versa, press and hold the “On/Off” button for 5 seconds while the water heater is OFF.

Setting the Sound Volume (Voice Prompt)

MC-100VPress the “Function” button to adjust the voice prompt volume. The default sound volume is set to Medium. Each subsequent press of the or button cycles through the volume levels in the order below.

Medium Volume

Off Volume

BC-100VPress the “Sound Vol.” button to adjust the voice prompt volume. The default sound volume is set to Medium. Each subsequent press of the button cycles through the volume levels in the order below.

Off Sound

(default)	High Volume	(beep)

(no beep)

Low Volume

Setting the Clock

MC-100VPress the “Function” button twice within 10 seconds to set the clock. Press the or button to reach the desired time. The clock on the BC-100V automatically shows

the time which has been set on the MC-100V.

VA Series Indoor LS Manual

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.

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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.