Rinnai R98LSI-ASME, R75LSI, R94LSI Description of Operation, Operating Instructions, Features

Page 5

Description of Operation

The Rinnai water heater is one of the most advanced water heaters available. It provides a continuous supply of hot water at a preset temperature. This appliance is direct vent where air is brought in from the outside and combustion gases are exhausted to the outside.

While electricity, water, and gas supplies are connected, the Rinnai water heater produces hot water whenever a hot water tap is open.

Ignition is electronic. There is no pilot light consuming gas while the water heater is not being used. The gas burner lights automatically when the hot water tap is opened and goes out when the tap is closed.

Installation of the temperature controller is highly recommended. The temperature controller can set the temperature within a specific range and can provide error codes to diagnose any problems.

The temperature of the outgoing hot water is constantly monitored. The Rinnai water heater may adjust the water flow in order to maintain the temperature setting. The water flow may vary from summer to winter due to the difference in ground water temperature.

Operating Instructions

Features Available on Temperature Controllers

The MC-91 temperature controller is supplied with the appliance. Additional functions are available through the use of optional controllers.

Features

Call

Clock

Error Codes

Function

In Use Indicator

ON/OFF Button

Power Save

Priority Button /

Indicator

Sound Volume

Temperature Display

Thermostat

Water Smart / Bath Fill Button / Indicator

Water Volume

MC-91

MCC-91

MC-100

BC-100

MC-502

Description

 

 

 

 

 

 

 

 

 

 

 

 

Sends a short series of beeps to all controllers in the system. It is

 

 

 

 

 

not an intercom.

 

 

 

 

 

 

12 hour AM/PM clock.

 

 

 

 

 

 

When a fault is detected an error code flashes at the temperature

 

 

 

 

 

display on models MC-91, MCC-91, and MC-502; and flashes at

 

 

 

 

 

 

the clock display on models MC-100 and BC-100.

 

 

 

 

 

 

Used on this model to set the clock or sound volume.

 

 

 

 

 

 

Indicates that hot water is being supplied (i.e. a hot water tap is

 

 

 

 

 

 

open).

 

 

 

 

 

 

Used to turn the water heater ON or OFF.

 

 

 

 

 

 

Allows the temperature controller to be in an energy saving

 

 

 

 

 

 

mode.

 

 

 

 

 

 

Indicates that this controller is setting the temperature . Priority

 

 

 

 

 

 

can be switched to another controller by pressing its Priority

 

 

 

 

 

 

Button when no hot water is running.

 

 

 

 

 

 

Used to adjust the voice prompt volume.

 

 

 

 

 

 

Shows the temperature setting.

 

 

 

 

 

 

Increases or decreases the temperature setting.

 

 

 

 

 

 

Used to select the Water Smart / Bath Fill Function to fill a bath

 

 

 

 

 

 

with a predetermined volume of water.

 

 

 

 

 

 

Used to select the water volume for the Water Smart / Bath Fill

 

 

 

 

 

 

Function.

 

 

 

 

 

VA

Series Indoor LS Manual

5

Image 5
Contents ANS Z21.10.3 CSA REU-VA3237FFUTable of Contents R50LSi R75LSi R94LSi R98LSi SpecificationsSafety Behavior and Practices Safety Features Consumer Safety InformationSafety Definitions Features Features Available on Temperature ControllersDescription of Operation Operating InstructionsMC-91-1US & MCC-91-1US Temperature Controllers ModelsBC-100V-1US Temperature Options Without a Temperature Controller Setting the TemperatureSetting the Sound Volume Voice Prompt Temperature RangesModel Temperature Settings Available ºF MCC-91 Temperature ControllerOverview Using the Water Smart / Bath Fill FunctionSetting the Water Volume Setting the Clock Setting Controller to MuteFilling the Tub Models MC-91 and MCC-91Maintenance Code Fault Remedy Error CodesCode Water Quality Trouble Shooting for Common IssuesAccessing Operating Information Circulating Pump Flushing the Heat Exchanger 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 PipingRinnai Water Heater Recommended Piping for Basic InstallationFor this application Recommended Piping for Circulation SystemsFor this application Optional Piping for Circulation SystemsCondensate Venting InstructionsIntake / Exhaust Guidelines Maximum Vent Length Manufacturer Product Parts Vent ProductsFlue Terminal Clearances ANS Z21.10.3 CSA Vent Terminal Area Where Terminal is not PermitttedAdditional Clearances Vent Terminal Flue Installation Concentric Venting R50LSi, R75LSi, R85LSi Air Intake Assembly Flue Installation R98LSi, R98LSi-ASMEExhaust Pipe Assembly Venting Clearances to CombustiblesVertical Terminations Horizontal with Concentric TerminationConnecting Multiple Water Heaters High Altitude InstallationsNumber of Connected Water Heaters Accessories Necessary GuidelinesConfigurations Temperature Controller InstallationLocation Cable Lengths and SizeOutline of Remote Mounting the ControllerOperating Instructions For Your Safety Read Before OperatingOutlet Flow Data Technical DataPressure Drop Curve Replacement Temperature SettingSpace Heating PumpsR50LSi, R75LSi, R94LSi R98LSi, R98LSi-ASME DimensionsHOT Ladder DiagramConsumer Support Warranty InformationLimited Warranty What will Rinnai do? Rinnai’s other fine products

R50LSI, R94LSI, R75LSI, R98LSI-ASME, R98LSI specifications

The Rinnai R50LSI, R75LSI, R94LSI, R98LSI, and R98LSI-ASME are high-efficiency tankless water heaters designed for residential and commercial applications. Each model in this line-up boasts unique features and technologies that cater to varying hot water needs while emphasizing energy efficiency and reliability.

The R50LSI is the most compact option in the lineup, providing up to 5.1 gallons per minute (GPM) of hot water at a 35°F rise in temperature. It is an ideal choice for smaller households or apartments where space is a premium. It operates using a direct vent system, ensuring safe exhaust of combustion gases outside the home. The R75SLI, with a maximum output of 7.5 GPM, is suited for needs such as multiple showers running simultaneously, making it perfect for medium-sized homes.

Moving on to the R94LSI and R98LSI, these models provide even greater capacity and efficiency. The R94LSI offers an impressive 9.4 GPM flow rate, while the R98LSI reaches a peak of 9.8 GPM, supporting larger family requirements and ensuring hot water availability for multiple applications concurrently. Both models incorporate Rinnai’s advanced Circ-Logic technology, which allows users to set schedules for recirculating hot water, minimizing wait time and enhancing convenience.

For commercial applications, the R98LSI-ASME is a specialized model that includes the American Society of Mechanical Engineers (ASME) certification. This makes it suitable for larger facilities, such as restaurants, schools, and other institutions that demand a robust and efficient solution for comprehensive hot water needs.

All these models feature a user-friendly digital controller, enabling easy temperature adjustments and real-time monitoring. Moreover, their compact design means they can be installed in various locations, saving valuable space. The Rinnai tankless water heaters utilize a highly efficient condensing technology, resulting in a lower carbon footprint and reduced energy costs.

With a robust warranty program and the reliability that Rinnai is known for, the R50LSI, R75LSI, R94LSI, R98LSI, and R98LSI-ASME embody the pinnacle of water heating technology. These models not only provide the convenience of on-demand hot water but also contribute to energy conservation, making them an excellent choice for environmentally conscious consumers.