Connecting the Appliance

1. Attach the air inlet hose to the flue manifold on	a
1. Attach the air inlet hose to the flue manifold on
either inlet position “a” or “b”.
The plastic tie should be tight over the sleeve.
The unused inlet is plugged with the rubber cap	b
supplied on the manifold.

2.Connect the flue elbow to the manifold while moving the appliance into position.

Flue Manifold

3.Fit the pipe stopper over the connection between the flue elbow and the manifold. Engage the hook and rotate it until it snaps against the body of the clamp.

Pipe stopper

Hook

Elbow

Manifold

Pipe stopper

4. Slide the insulation sleeve up to the flue manifold

Fit Clip

and slip the securing clip over the sleeve as

shown.

Slide

Sock

5.Install the bracket on the rear of the top spacer by tightening 2 screws.

Spacer bracket

Top Spacer

6.Install the wall bracket with two screws. Attach the heater to the wall bracket with 2 screws.

Top Spacer

Wall bracket

Top Spacer

Spacer

Bracket

Wall

Bracket

Rinnai Corporation EX17C / EX22C Manual

EX17C (RHFE-434FTA), EX22C (RHFE-559FTA) specifications

The Rinnai EX17C (RHFE-434FTA) and EX22C (RHFE-559FTA) are innovative wall-mounted gas heaters that provide efficient and cozy heating solutions for indoor spaces. Manufactured with advanced technology, these models are designed to meet diverse heating needs while ensuring user comfort and safety.

One of the standout features of both the EX17C and EX22C is their energy efficiency. With a high energy star rating, these heaters minimize energy consumption, making them ideal for environmentally conscious consumers. The EX17C can deliver an impressive 17 kW of heating power, while the EX22C offers up to 22 kW, accommodating various room sizes and layouts effectively.

Both models utilize Rinnai’s advanced direct vent technology. This system allows fresh air from outside to be used for combustion, ensuring optimal heating performance without depleting indoor oxygen levels. This feature not only enhances comfort but also contributes to improved indoor air quality. Additionally, the closed combustion system ensures that exhaust gases are safely vented outside, providing a safer environment for occupants.

In terms of design, the EX17C and EX22C are sleek and modern, fitting seamlessly into various interior styles. Their wall-mounted configuration saves floor space, making them suitable for smaller rooms or homes where space optimization is a priority. The adjustable heat settings enable users to customize their heating preferences according to the season or personal comfort levels.

User convenience is a core aspect of both models, which come equipped with an intuitive electronic control panel. This feature allows for easy temperature adjustments and scheduling, ensuring that optimal heat levels can be maintained without constant manual intervention. Some models also offer remote control capabilities, enhancing usability for consumers.

Safety is paramount in Rinnai's design philosophy, and the EX17C and EX22C include multiple safety features such as flame failure detection and automatic shut-off. These mechanisms ensure that any irregularities in operation are promptly addressed, providing peace of mind for homeowners.

In conclusion, the Rinnai EX17C and EX22C offer modern, energy-efficient heating solutions with advanced technology, user-friendly features, and a focus on safety. These models are ideal choices for anyone looking to enhance their indoor heating experience while maintaining energy efficiency and comfort.