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NTI TRX199 User Manual

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TRXTRX
Residential Condensing Gas Boiler
Installation
Start-Up
Maintenance
Parts
Warranty
THIS MANUAL MUST ONLY BE USED BY A QUALIFIED INSTALLER / SERVICE
TECHNICIAN. READ ALL INSTRUCTIONS IN THIS MANUAL BEFORE
INSTALLING. PERFORM STEPS IN THE GIVEN ORDER. FAILURE TO DO SO
COULD RESULT IN SUBSTANTIAL PROPERTY DAMAGE, SEVERE PERSONAL
INJURY, OR DEATH.
Improper installation, adjustment, alteration, service, or maintenance could
void product warranty and cause property damage, severe personal injury,
or death.
California Proposition 65 Warning: This product contains chemicals known
to the State of California to cause cancer, birth defects, or other reproductive
harm.
The manufacturer reserves the right to make product changes or updates
without notice and will not be held liable for typographical errors in literature.
The surfaces of these products contacted by potable (consumable) water
contain less than 0.25% lead by weight as required by the Safe Drinking Water
Act, Section 1417.
WARNING
Heat Exchanger Bears the ASME “H” Stamp
DANGER
NOTICE
86661 Revision Date 2.25.21
TRX150 / TRX199
TRX199C Models

Table of Contents

Other manuals for NTI TRX199

Questions and Answers:

NTI TRX199 Specifications

General IconGeneral
BrandNTI
ModelTRX199
CategoryBoiler
Fuel TypeNatural Gas
Efficiency95%

Summary

Part 1 - General Safety Information

A. Operation and Installation Warnings

Crucial safety warnings for boiler operation and installation.

B. Improper Combustion

Hazards and prevention measures for improper combustion.

C. Gas

Safety precautions related to gas supply and shut-off.

H. Water Temperature Adjustment and Scalding

Information on setting water temperatures and preventing scalding injuries.

Part 3 - Prepare the Boiler for Installation

A. Locating the Boiler

Guidelines for selecting an appropriate, safe, and accessible installation location.

C. Clearances for Service Access

Required minimum clearances around the boiler for maintenance and service.

E. Wall Mounting Instructions

Step-by-step procedures for securely mounting the boiler on walls.

G. Exhaust Vent and Intake Pipe

Requirements for the boiler's direct vent and air intake piping system.

H. Carbon Monoxide Detectors

Mandatory requirements for the installation of CO detectors.

I. Prevent Combustion Air Contamination

Methods and precautions to prevent contamination of combustion air intake.

Part 4 - Water Piping

D. Piping the Boiler

Instructions for correctly connecting the water supply and return pipes to the boiler.

Part 5 - Venting

A. General

General requirements and safety warnings for boiler venting systems.

B. Approved Materials for Exhaust Vent and Intake Pipe

List of approved materials and standards for vent and intake piping.

Part 7 - Connecting Electrical Service

A. Wiring

Instructions for connecting the boiler's electrical power supply and low voltage controls.

Part 8 - Gas Connections

WARNING

Critical warnings regarding gas connections, potential leaks, and fire hazards.

D. Checking Gas Pressure at the Boiler for Proper Operation

Procedure for checking and adjusting gas pressure for optimal boiler operation.

Part 9 - Controls

A. Control and Display Overview

Explanation of control panel buttons, display icons, and status indicators.

H. Automatic CH Temperature Control (AUTO)

How the boiler automatically adjusts heating based on outdoor/indoor conditions.

P. Technical Menu - Access and Navigation

How to access and navigate the technical menu for advanced configuration.

Part 10 - Start-Up Preparation

A. Check / Control Water Chemistry

Importance of checking and controlling water chemistry for system health.

B. Check for Gas Leaks

Procedures for safely checking gas lines for leaks before boiler operation.

D. System Water Fill, Purge, and Test

Steps for filling, purging, and testing the heating system before start-up.

Part 11 - Start-Up

A. First Ignition

Steps for initial boiler start-up, including safety checks and ignition.

B. Combustion Checking Procedure

Procedure for checking and adjusting combustion parameters for optimal performance.

Part 12 - Installation Checklist

Start-Up, Adjust, and Test

Checklist items for initial boiler start-up, adjustments, and system testing.

Burner Flame

Checklist items for verifying burner flame and combustion values.

Part 13 - Troubleshooting

A. Boiler Protection Devices

Explanation of boiler protection devices, including blocking and lockout errors.

B. Boiler Error Codes

A comprehensive list of boiler error codes, their descriptions, and remedies.

Part 14 - Maintenance

A. Procedures

Overview of periodic maintenance requirements for safety and efficiency.

C. Qualified Service Technician Maintenance

Tasks requiring a qualified service technician, including component replacement.

Part 16 - Shutdown

B. Failure to Operate

Troubleshooting steps for burner ignition failures and lockout states.

C. Important

Important safety measures to take when working on the plumbing system.

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