Temperature Ranges

This water heater will attempt to provide hot water at the temperature setting 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)
R63LSe	98	100	102	104	106	108	110	115	120	125	130	135	140	150	160
R75LSe										*	*	*	*	**	**
R94LSe										125	130	135	140	150	160	185
R98LSe	98	100	102	104	106	108	110	115	120	125	130	135	140	150	160	185
R98LSe-ASME										*	*	*	*	**	**	**
R98LSe-ASME

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

*Re-setting the Maximum Temperature

If the model name on the side of the water heater ends with “-UC” (ex. “REU-VA2535WD-UC”), then these units have a default maximum temperature of 120º F (49º C) and an option to increase the maximum temperature to 140 ºF (60 ºC). Temperature settings from 125-140 ºF (52-60 ºC) are available by setting dip switch 6 to ON in the SW1 bank of 8 dip switches.

Units with model names ending in “-US” have a default maximum temperature of 140 ºF (60 ºC).

**MCC-91 Temperature Controller

These settings require the MCC-91 controller. When the MCC-91 controller is connected, these higher temperatures are available on all controller models in the system. Use of an MCC-91 controller in a residential dwelling will reduce the warranty coverage to that of a commercial warranty application.

The MCC-91 controller is intended for commercial and hydronic applications only. If an MCC-91 controller is used in a residential dwelling for a hydronics application, a mixing valve must also be installed to limit the potable hot water temperature to a safe temperature. Water temperatures over 125º F (51º C) can cause severe burns or scalding. Refer to the Danger Alert on water temperatures. Rinnai shall not, in any event, be liable for damages resulting from such misuse or misapplication.

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.

A 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

VA Series Outdoor LS Manual

R98LSE-ASME specifications

The Rinnai R98LSE-ASME is a high-efficiency tankless water heater that stands out for its powerful performance and advanced technology. This model is particularly designed to meet the demands of residential and commercial applications, delivering consistent hot water whenever it is needed. With a maximum flow rate of 9.8 gallons per minute, it is able to provide hot water for multiple outlets simultaneously, making it an excellent choice for busy households and commercial settings.

One of the main features of the Rinnai R98LSE-ASME is its Energy Star rating, which signifies its exceptional energy efficiency. This rating not only helps reduce energy bills but also minimizes the environmental impact by consuming less gas over time. The unit is engineered with advanced condensing technology, which captures and reuses heat from exhaust gases, enhancing efficiency and cutting waste.

The R98LSE-ASME operates on a natural gas or propane option, allowing for flexibility depending on the available fuel supply. Its powerful burner system can quickly heat water to the desired temperature, ensuring that there's no waiting time for hot water. Additionally, the unit is designed with a temperature lock feature, which allows users to set and maintain their preferred water temperature easily, enhancing safety and convenience, especially in households with children.

Installation of the Rinnai R98LSE-ASME is straightforward, as it comes with a detailed manual and can be fitted into various environments, including closets and small spaces, due to its compact design. This versatility provides significant savings on space compared to traditional tank water heaters.

Safety is also a priority for Rinnai. The R98LSE-ASME includes a comprehensive set of safety features such as overheat protection, freeze protection, and built-in diagnostic codes for quick troubleshooting. This ensures reliable operation and peace of mind for users.

In summary, the Rinnai R98LSE-ASME is a high-performance tankless water heater that combines efficiency, reliability, and advanced technology. With features such as a high flow rate, Energy Star certification, and robust safety measures, it is well-suited for both residential and commercial applications, making it a worthy investment for anyone seeking a dependable hot water solution.