Rinnai GTK03U User Manual

Item # Item Qty
1
Hot Water Manifold
1
2
Cold Water Manifold
1
3
GTK03U pump and two unions
1
4
Flow Restricting Bypass
1
5
Flow Restrictor Bypass Adapter
1
6
Grundfos Crossover Valve
1
7
Control-R™ Wi-Fi Module
1
8
Pipe Cover
1
• Teflon Tape
• Hot and Cold Water Isolation
Valves (supplied with water heater)
• Tankless Water Heater
• Tankless Water Heater
Installation and Operation Manual

Rinnai GTK03U Specifications

General

Brand	Rinnai
Model	GTK03U
Category	Water Pump
Language	English

Summary

Pump Kit Components

Items You Will Need

Electrical Safety and Configuration

Electrical Shock Hazard Warning

Crucial safety warning regarding electrical hazards from the pump's power source.

Recirculation Mode Dip Switch Settings

Configuration of pump operation modes (Economy, Comfort) via water heater dip switches.

Water Supply Connection Procedures

Pre-Connection Water Supply Checks

Ensures proper water line preparation, purging, and filter checks before connecting water supply.

Dedicated Return Line Plumbing Diagram

Crossover Recirculation Plumbing Diagram