NTI TFTN150 User Manual

TFTN 085-399
INSTALLATION AND OPERATION MANUAL
Version Date: 2022-09-06
HAZARD SYMBOLS AND DEFINITIONS
Danger Sign: Indicates a hazardous situation which, if not avoided, will result in serious
injury or death.
Warning Sign: Indicates a hazardous situation which, if not avoided, could result in
serious injury or death.
Caution Sign plus Safety Alert Symbol: Indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
Caution Sign without Safety Alert Symbol: Indicates a hazardous situation which, if not
avoided, could result in property damage.
Notice Sign: Indicates a hazardous situation which, if not avoided, could result in property
damage.
This Boiler must be installed by a licensed and trained Heating Technician, or the
Warranty is Void. Failure to properly install this unit may result in property damage,
serious injury to occupants, or possibly death.
NTI # 87137

NTI TFTN150 Specifications

General

Brand	NTI
Model	TFTN150
Category	Boiler
Language	English

Summary

Introduction

General Installation Requirements

Details general requirements for installing the NTI TFTN gas-fired boiler as per codes.

Before Operating with Propane

Boiler Vent / Air-Intake Piping

Boiler Location

Minimum Installation Clearances

Specifies required clearances around the boiler for installation and service.

General Venting

Direct Vent Installation

General Venting Rules and Guidelines

Vent Termination Clearances

Clearance Table

Specifies minimum vent termination clearances for Canadian and US installations.

Installing Gas Piping

Gas Piping Installation Guidelines

Instructions for installing gas piping, including codes and safety precautions.

Lighting the Boiler

Pre-Start-up Procedures

Mandatory steps before turning on gas and lighting the boiler.

Operating Instructions

Step-by-step guide for safely starting and operating the boiler.

To Turn Off Gas To Boiler

Gas Valve and Burner Set-Up

Combustion Calibration Procedure

Steps for calibrating burner combustion using a CO2 analyzer.

Throttle Screw Adjustment

Procedure for adjusting the throttle screw to calibrate CO2 at Max Power.

Offset Screw Adjustment

Procedure for adjusting the offset screw to calibrate CO2 at Min Power.

Gas Line Pressure Test

Procedure for measuring gas line pressure to ensure it is within tolerance.

Boiler and Heating System Piping

Water Quality

Importance of water quality and best practices for system water.

Near Boiler Plumbing

Instructions and diagrams for plumbing connections near the boiler.

Boiler System Plumbing

Guidelines for boiler system plumbing, including flow rates and pump sizing.

Cascade Installation

Multiple Boiler Applications

General Installation Instructions

Setup Procedure

Installation Checklist

Installation Steps

Checklist for completing the boiler installation process.

Start-up Procedure

Steps to follow for initial boiler start-up after installation.

Operational Checklist

Before Leaving

Annual Maintenance and Inspection

Annual Inspection Checklist

Checklist for the annual inspection of the boiler by a qualified technician.

Combustion Chamber Cleaning Procedure

Cleaning Checklist

Display Menu Guide

Home Screen Overview

Setup Menu Navigation

Setup Wizard

Tech Menu Options

Test Mode Functions

Connectivity Settings

Diagnostics Menu

Error Codes and History

Lists active errors, error history, and provides options to clear errors.

WIFI Connection

NTI Net App - Connecting Boiler

Guide to connecting the boiler to WiFi using the NTI net mobile app.

Troubleshooting

Before Servicing the Boiler

Diagnostic Procedures

Steps for identifying and correcting abnormal boiler operation.