CONTENTS

Warranty………………………………… …………………………………………………2

Unpacking Rinnai Water Heater………… …………………………………….…………..3

Installation Instructions…………………… …………………………………………………4

Flue Requirements………………………... …………………………………………………8

Dimensions………………………………… ……………………………………………….10

Technical Details..………………………… ……………………………………………….11

Features and Benefits……………………. ……………………………………………….12

Important Information…………………….. ……………………………………………….13

Operation without Remotes……………… ……………………………………………….15

Temperature Controls…………………….. ……………………………………………….16

Testing……………………………………… ……………………………………………….27

Gas Pressure Setting…………………….. ……………………………………………….28

Dip Switch Setting………………………… ……………………………………………….30

Error Messages…………………………… ……………………………………………….32

Restarting the Rinnai Water Heater…….. ……………………………………………….34

Wiring Diagram……………………………. ……………………………………………….35

Diagnostic Points………………………….. ……………………………………………….36

Specification……………………………….. ……………………………………………….37

Service Contact…………………………… ……………………………………………….38

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Rinnai 26i, HD50i user manual Contents

26i, HD50i specifications

The Rinnai 26i and HD50i are two high-efficiency heating solutions designed to meet modern demands for comfort, convenience, and energy saving. These units are ideal for residential heating applications, delivering reliable warmth while also being mindful of environmental impacts and energy consumption.

The Rinnai 26i is a wall-mounted unit that offers exceptional performance and efficiency. With a compact design, it is perfect for both small and large spaces, making it versatile in various settings. One of the standout features of the 26i is its ability to provide continuous hot water and space heating simultaneously, making it exceptionally convenient for homeowners. The advanced modulation technology allows the unit to adjust its heating output based on demand, ensuring optimal comfort without excessive energy use.

Another notable aspect of the Rinnai 26i is its intelligent control system, which includes a user-friendly digital display and programmable thermostat. This allows homeowners to customize their heating schedules and maintain their preferred temperature with ease. Additionally, the unit is equipped with a range of safety features, including anti-frost protection, ensuring safe operation even in extreme weather conditions.

On the other hand, the Rinnai HD50i is designed for larger spaces and offers an impressive heat output. This gas heater features a stylish design, blending seamlessly with modern home aesthetics. The HD50i utilizes Rinnai's innovative convection technology, which effectively warms the room by circulating heated air, providing consistent comfort throughout the space.

The HD50i is also equipped with advanced airflow management systems that minimize hot and cold spots, ensuring even distribution of heat across various rooms. Both the 26i and HD50i models come with energy-efficient ratings that help reduce utility bills while lowering carbon footprints.

Ease of installation and maintenance is another advantage of both units; they are designed for straightforward setup and come with clear guidelines for servicing. This focus on user experience makes Rinnai heating systems a popular choice among homeowners.

In summary, the Rinnai 26i and HD50i represent the culmination of innovative heating technology, efficiency, and aesthetics. With their advanced features, environmental consideration, and user-friendly operation, these units stand out as top choices for efficient home heating solutions. Whether for a compact apartment or a spacious home, Rinnai provides versatile and reliable options for creating a warm, comfortable living environment.