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Rinnai Circ-Logic Installation And Operation Manual page 4

With grundfos gtk03 kit for sensei and non-sensei tankless water heaters

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The GTK03U Kit contains the following:
Grundfos 15-55 pump and internal check valve
6 ft. (2 m) BX conduit pre-wired to pump (In-line 4 amp glass fuse included)
Union Set
Rinnai Circ-Logic Manual
Equivalent Pipe Length*
using Grundfos GTK03U
* The equivalent pipe length includes supply piping, return piping, and fittings. The Installer/Contractor/
Engineer must calculate the total equivalent pipe length of the piping system.
A licensed professional must install the GTK03U kit.
The installer should have the following skills:
• Connecting gas lines, water lines, valves, and electricity.
• Knowledge of applicable national, state, and local codes.
If you lack these skills, contact a licensed professional.
The pump supplied with your GTK03U kit is meant for indoor installations only. It is designed to
circulate water from 36°F to 150°F up to a maximum pressure of 145 PSI.
The proper operating voltage and other electrical information can be found on the nameplate attached to
the top of the motor.
Rinnai Circ-Logic with Grundfos GTK03 Kit
@ 120°F
Up to 200 ft. (61 m)
(3/4 in. (19 mm) Piping)
4

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