Flue Installation (R98LSi, R98LSi-ASME)

Air Intake Assembly

The air intake system consists of a field supplied 4 inch diameter stainless steel, Schedule 40 PVC, ABS or CPVC pipe. A maximum 6 feet of semi-rigid flexible aluminum ducting can also be used. Foil wrapped dryer vent and cell core products are not authorized.

The air intake has a zero clearance to combustibles.

Air Intake Connection

1.Drill 2 small holes at the end of the air intake pipe.

2.Slide the pipe over the air intake terminal.

3.Using a level, ensure the pipe is straight up and down.

4.With self tapping screws, attach the pipe to the air intake terminal.

5.Apply a bead of silicone around the pipe and air intake terminal, ensuring an air tight connection.

12

34

Exhaust Pipe Assembly

Refer to the manufacturerís installation instructions for the specific exhaust vent system.

Venting Clearances to Combustibles

Vent

Enclosed

Unenclosed

 

 

 

 

Size

Horizontal

Vertical

Horizontal

Vertical

 

 

 

 

 

 

4"(101.6mm)

4"(101.6mm)

4"(101.6mm)

1"(25.4mm)

1"(25.4mm)

 

 

 

 

 

Horizontal Terminations

The air intake must be located in relation to the exhaust as shown below. The air intake must angle 1/4 inch per foot to the termination to prevent entry of rain.

6

Vent

8

Optional

Intake

Intake

EXHAUST

COMBUSTION AIR / INTAKE

SLOPE INTAKE AND EXHAUST

TOWARD OUTSIDE TERMINATION

MINIMUM 1/4" PER FOOT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

32

VA Series Indoor LS Manual

 

Page 32
Image 32
Rinnai REU-VA3237FFU installation manual Flue Installation R98LSi, R98LSi-ASME, Air Intake Assembly, Exhaust Pipe Assembly

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.