Override Function

This function is used only when the heater is in Timer operation.

It allows you to “override” the reset timer setting until the beginning of the next Timer period.

For example, if the heater is ON, pressing the “Override” button will turn the heater OFF until the next period. If the heater is OFF, pressing the “Override” button will turn the heater ON, and allow you to select a temperature setting, until the next period. The heater will remain on until the next timer period or until the Override function is turned off.

When in override function, pressing the “Override” button will return the heater to the operation of the current timer period.

Economy (Energy Saving Mode)

The Economy mode can only be set while the heater is operating (heating). Once it is set, it will remain in the system memory until deactivated.

1.To turn the Economy mode on, press the “Economy” button. The Economy indicator is lit.

•The Economy mode now remains in the system memory.

•If the appliance is turned off manually, or stops heating as a result of an OFF timer period, the “Economy “ indicator will go out.

•Whenever the appliance starts heating again, the “Economy” indicator will light.

2.To turn the Economy mode off, press the “Economy” button. The “Economy “ indicator will go out.

•The Economy mode can only be turned off while the heater is operating (heating) and when the “Economy” indicator is lit.

Economy Mode Information

After the room is heated initially, the air temperature may be dropped to a lower level without affecting comfort. The Economy Mode reduces the temperature by 2 ºF, 30 minutes after the room temperature setting is reached. After another 30 minutes, it reduces the temperature setting by another 2 ºF, effectively saving energy. The room temperature setting will drop up to a total of 4 ºF.

The Economy Mode will not operate if the heater is under capacity for the room size.

Preset Temperature

	2°F reduction
	2°F reduction
30 min	30 min

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.

Rinnai EX17C (RHFE-434FTA), EX22C (RHFE-559FTA) Override Function, Economy Energy Saving Mode

Models: EX17C (RHFE-434FTA) EX22C (RHFE-559FTA)