Takagi T-K3 User Manual

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T-K3 / T-K3-Pro
On-Demand Water Heater
Installation Manual and Owner’s Guide
FEATURING
• ENDLESS HOT WATER
• ON DEMAND USAGE
• COMPACT, SPACE SAVING
• ENERGY CONSERVATION
• COMPUTERIZED SAFETY
• NO PILOT LIGHT
• EASY LINK SYSTEM
WARNING
This product must be installed and
serviced by a licensed plumber, a
licensed gas fitter, or a professional
service technician. Improper installation
and/or operation, or installation by an
unqualified person, will void the
warranty.
WARNING
If the information in this manual is not
followed exactly, a fire or explosion may
result, causing property damage,
personal injury, or death.
TAKAGI Indust
r
ial Co. US
A
, Inc.
5 Whatney
Irvine, CA 92618
Toll Free: (888) 882-5244 USA
Toll Free: (877) 877-4953 CANADA
Flash Water Heater™
Model T-K3 and T-K3-Pro
Suitable for potable water heating and space heating

Takagi T-K3 Specifications

General

Type	Tankless
Installation Type	Indoor
Maximum BTU Input	199, 000 BTU/h
Gas Connection Size	3/4"
Vent Size	3"
Hot Water Flow Rate (at 35°C rise)	6.6 GPM
Maximum Input	199, 000 BTU/h

Summary

Safety Guidelines for Takagi Water Heaters

Installation Procedures

Outdoor Installation

Indoor Installation

Direct Intake Vent System

Venting Instructions

Vent Termination Guidelines

Vent Clearances

Gas Supply and Pipe Sizing

Measuring Inlet Gas Pressure

Step-by-step instructions for a licensed professional to measure the unit's inlet gas pressure.

Water Connections

Pressure Relief Valve Requirements

Electrical Connections

Remote Controller Connection

Easy Link System Setup

Easy Link Connection Procedures

Step-by-step guide for connecting units in the Easy Link system, including master/slave setup.

Initial Operation and Checks

Normal Operation

Without Remote Controller Operation

Basic steps for operating the water heater directly without a remote controller.

With Remote Controller Operation

Freeze Protection System

Temperature Settings

Maintenance and Service Procedures

Unit Draining and Filter Cleaning

General Troubleshooting Guide

Troubleshooting Error Codes

Wiring Diagram

Operating Safety Instructions

Components Diagram Overview

Parts List

Warranty Information