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NTI Trinity Tx200C User Manual

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Trinity Tx
Model Numbers: Tx 51 - 200
Version Date: 2019-06-20
INSTALLATION AND OPERATION MANUAL
TABLE OF CONTENTS
1.0 INTRODUCTION ................................................................................................................ 3
2.0 SPECIFICATIONS .............................................................................................................. 6
3.0 BOILER LOCATION .......................................................................................................... 7
4.0 GENERAL VENTING ....................................................................................................... 10
5.0 VENT/AIR-INLET TERMINATION CLEARANCES ..................................................... 24
6.0 CONDENSATE DRAIN .................................................................................................... 26
7.0 INSTALLING GAS PIPING .............................................................................................. 28
8.0 LIGHTING THE BOILER ................................................................................................. 30
9.0 GAS VALVE AND BURNER SET-UP ............................................................................ 33
10.0 BOILER AND HEATING SYSTEM PIPING ................................................................... 36
11.0 DOMESTIC HOT WATER (DHW) PIPING – TX151C & TX200C (COMBI) ............... 47
12.0 FIELD WIRING ................................................................................................................. 49
13.0 CASCADE INSTRUCTIONS ............................................................................................ 52
14.0 WIRING SCHEMATICS ................................................................................................... 54
15.0 INSTALLATION CHECKLIST ........................................................................................ 56
16.0 ANNUAL MAINTENANCE AND INSPECTION ........................................................... 57
17.0 DISPLAY MENU GUIDE ................................................................................................. 59
18.0 TROUBLESHOOTING ..................................................................................................... 72
19.0 PARTS LIST ...................................................................................................................... 75
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 # 84874
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NTI Trinity Tx200C Specifications

General IconGeneral
Efficiency95% AFUE
Boiler TypeCondensing
Heat Exchanger MaterialStainless Steel
Fuel TypeNatural Gas or Propane
Warranty12 years
Input BTU200, 000 BTU/h

Summary

Hazard Symbols and Definitions

1.0 Introduction

General Installation Requirements

Outlines requirements for boiler installation, local codes, and standards.

User Responsibilities

Details owner's obligations for boiler maintenance and inspection.

3.0 Boiler Location

4.0 General Venting

Removing Existing Boiler from Common Venting

Instructions for safely removing an old boiler from a shared venting system.

Direct Vent Installation Best Practices

Flammable Solvents and Plastic Piping Safety

Warns about hazards associated with flammable solvents used for piping.

Mandatory Pre-commissioning for Plastic Venting

Termination Options for Direct Vent Installation

Venting Rules and Guidelines

5.0 Vent/Air-Inlet Termination Clearances

6.0 Condensate Drain

7.0 Installing Gas Piping

Gas Piping Installation Requirements

Covers codes, sizing, and general requirements for gas piping installation.

8.0 Lighting the Boiler

For Your Safety, Read Before Operating

Essential safety information and gas leak procedures before operation.

Operating Instructions

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

Initial Start-Up Procedures

Boiler Start-up Sequence

Details the process of powering up the boiler and initial sequences.

Re-lighting Unit Procedures

Steps for relighting the boiler if ignition fails or is interrupted.

9.0 Gas Valve and Burner Set-up

Combustion Calibration Procedure

Steps for calibrating burner combustion using a CO2 analyzer.

Throttle Screw Adjustment

How to adjust the throttle screw for CO2 calibration at maximum rate.

Offset Screw Adjustment

How to adjust the offset screw for CO2 calibration at minimum rate.

Gas Line Pressure Test

10.0 Boiler and Heating System Piping

Boiler System Preparation and Cleaning

Instructions for preparing and cleaning the heating system before connecting the boiler.

Boiler System Plumbing and Circulators

Circulating Pumps and Sizing

Information on boiler circulators and how to size them correctly.

11.0 Domestic Hot Water (DHW) Piping – Tx151C & Tx200C (Combi)

Thermostatic Mixing Valve Requirement

Mandates installation of a mixing valve to prevent scald hazards.

12.0 Field Wiring

Wiring Schematic Diagrams

13.0 Cascade Instructions

Cascade Plumbing Schematic

Illustrates the plumbing setup for cascading multiple boilers.

14.0 Wiring Schematics

15.0 Installation Checklist

Installation Checklist Items

Comprehensive list of steps to verify during boiler installation.

Start-up Procedure Checklist

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

Operational Checklist Items

Checks to perform to ensure proper boiler operation after startup.

16.0 Annual Maintenance and Inspection

Annual Inspection Checklist

A list of items to inspect annually for proper boiler performance.

Combustion Chamber Cleaning Procedure

Detailed steps for cleaning the boiler's combustion chamber.

Refractory Ceramic Fibers (RFC) Handling

Personal Protective Equipment (PPE) for RFC

Recommended PPE and handling instructions for Refractory Ceramic Fibers.

Installer Menu Navigation and Settings

Accessing and Adjusting Installer Settings

Procedure for entering and modifying installer menu settings.

Lockouts and Blocking Errors

Error Navigation and Low Water Pressure

Lockout and Error Code Descriptions (Part 1)

Ignition Error Codes (Loc 0-4)

Descriptions and troubleshooting steps for ignition-related lockouts.

Gas Valve and Power Supply Faults

Explains faults related to gas valve circuits and power supply interference.

Limit Circuit Open Faults

Descriptions for lockouts indicating an open safety limit circuit.

Lockout and Error Code Descriptions (Part 2)

Controller Malfunction and Sensor Errors

Descriptions for controller malfunctions and various sensor errors.

Flue Sensor and Return Sensor Errors

Troubleshooting guide for flue and return sensor related errors.

Lockout and Error Code Descriptions (Part 3)

Reset Button and Appliance Type Errors

Explains reset button issues and appliance type mismatch errors.

Water Pressure and Warm Weather Shutdown Alerts

Troubleshooting for water pressure errors and warm weather shutdown alerts.

Controller Replacement Instructions

Appliance Type Setting Procedure

Steps to set the correct appliance type after controller replacement.

Appliance Selection Method

Procedure for changing the appliance type setting if not automatically prompted.

18.0 Troubleshooting

Servicing the Boiler Safety Precautions

Safety guidelines to follow before performing any boiler servicing.

Diagnosing an Inoperative Boiler

Steps to diagnose why the boiler is not operating or producing heat.

Troubleshooting No Heat to Radiators

Steps to diagnose and resolve issues when radiators receive no heat.

Troubleshooting No DHW

Steps to diagnose and resolve issues with domestic hot water supply.

Troubleshooting DHW and Error Indicators

Troubleshooting Insufficient DHW Temperature

Steps to resolve issues when DHW is not hot enough.

Interpreting Error, Lockout, and Warning Indicators

Guide to understanding and resolving indicated errors, lockouts, or warnings.

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