Spec Sheet

© 2017 Rinnai Corporation GTK15-SP 3/2017
DIMENSIONS
Grundfos GTK15 Pump Kit
Part Number: GTK15
Kit Contents
 Grundfos 15-55 pump with timer and internal check valve
 6 Ft (2 m) electrical cord
 6 Ft (2 m) BX conduit pre-wired to pump (includes in-line 4 Amp glass fuse)
 Wire Nuts (Qty 5)
 Flange kit
 Rinnai Circ-Logic™ Manual
Specifications
Housing Material Stainless Steel with Check Valve
Flow Range 20 GPM
Head Range 17 Ft (5 m)
Max Liquid Temperature 150° F (65° C)
Maximum System Pressure 145 PSI
Input Voltage 115 V
Frequency 60 Hz
Max Amperage 0.75 A
Connection Size 3/4” Flange
Weight (Pump/Flange Kit Combined ) 8.9 lbs. (4 kg)
Pipe Length
Equivalent pipe length using Grundfos GTK15 pump at
120°F (49° C) = Up to 200 Ft (61 m) (3/4” piping)
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.
Warranty Manufacturer’s Warranty Applies
Timer Control
Designed to turn the pump on and off at preset times.
Shortest Switching Interval 15 Minute Increments
Protection
Clear plastic cover for dust and
moisture protection of clock face
Modes Timer, On (Override) and Off (Override)
Requirements
Grundfos GTK15 Kit must be used with Rinnai Tankless Water Heaters
utilizing Rinnai Circ-Logic™.
(Images for illustrative
purposes only)
FRONT
TOP
SIDE
7.21” (183 mm)
5.39” (137 mm)
6.50”
(165 mm)