Recommended Piping for Circulation Systems

Notes:

PLEASE NOTE FOR RESIDENTIAL AND COMMERCIAL APPLICATIONS, THIS PIPING ARRANGEMENT MAINTAINSFULL WARRANTY

For this application:

Pump should be controlled by an Aquastat, Timer or Combination Aquastat and Timer.

Pump to be sized to maintain circulation loop temperature.

A minimum of 3 GPM flow is recommended for the circulation system.

The pump should be sized to overcome the pressure loss through the Rinnai water heater, supply and return plumbing. Refer - ence the Rinnai Hot Water System Design Manual, Pump Sizing for Circulation.

Pump to be of bronze or stainless construc - tion.

Rinnai

Water Heater

Rinnai

QTY

Equipment List

Rinnai

1

Water Heaters

 

RIK-KIT (Optional)

1

(3/4" Fittings Include:

 

2

Unions, 2 Ball Valves,

 

2

Drain Valves and

 

1

Pressure Relief Valve.)

 

3/4" Gas Connection

 

Gas Supply

Minimum 3/4" Cold Water Supply Line

IMPORTANT: Connect the building return line to the hot water supply line as close as possible to the Rinnai Water Heater.

Tank Water Heater to be Sized for Heat Loss of Circulation Loop.

Electric Water

Heater

Building Supply

Building

Fixtures

Expansion Tank

 

KEY

3/4" Ball Valve

Pressure Regulator

 

3/4" Union

Circulating Pump

Check Valve

Boiler Drain Valve

Pressure Relief Valve

S Solenoid Valve

This is not an engineered drawing, it is intended only as a guide and not as a replacement for professionally engineered project drawings. This drawing is not intended to describe a complete system, it is up to the contractor/engineer to determine the necessary components for and configuration of the particular system being installed. The drawing does not imply compliance with local building code requirements. It is the engineer/contractor responsiblity to ensure the installation is in accordance with all local building codes. Confer with local building officials before installation.

24

VA Series Outdoor LS Manual

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Rinnai R98LSE-ASME installation manual Recommended Piping for Circulation Systems, For this application

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.