Rinnai GTK15 Installation Manual

Rinnai Circ-Logic™ (RCL)

With GTK15 Kit

Features and Benefits

Rinnai Circ-Logic™ (RCL) offers homeowners enhanced convenience and energy efficiency in homes with hot water recirculation systems with a dedicated return line.

The RCL controls the on/off sequence and operational cycles of the recirculation

pump through the programming of the tankless water heater’s control board. This

feature is standard on Rinnai’s Ultra and Luxury Series units.

The RCL has been designed to provide the homeowner with the ability to customize their recirculation systems based on such key variables as home

size, length of recirculation loop, piping insulation, and the homeowner’s

comfort and efficiency preferences.

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Installation with GTK15 Kit

The GTK15 Kit, manufactured by Grundfos, allows the user to enjoy further energy savings through the use of a timer.

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Installation with GTK15 Kit

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