NTI Trinity Tx200 User Manual

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 Tx200 Specifications

General

Boiler Type	Condensing
Fuel Type	Natural Gas or Propane
AFUE	95%
Heat Exchanger Material	Stainless Steel
Efficiency	95% AFUE
Maximum Input	199, 000 BTU/hr
Heating Capacity	180, 000 BTU/h
Max Water Temperature	194°F

Summary

HAZARD SYMBOLS AND DEFINITIONS

GENERAL VENTING

Removing an Existing Boiler from Common Venting System

Direct Vent Installation Best Practices

Best practices for installing a direct vent system for the boiler.

Combustion Air-inlet Contamination

Mandatory Pre-commissioning Procedure for Plastic Venting

Procedure for preparing plastic venting systems before boiler startup.

Termination Options and Kits

Sidewall Venting Options

Details on different sidewall termination configurations for direct venting.

Roof Venting Options

Details on different roof termination configurations for direct venting.

Sidewall Termination Details

Specific details and diagrams for sidewall vent terminations.

Roof Termination Details

Specific details and diagrams for roof vent terminations.

VENT/AIR-INLET TERMINATION CLEARANCES

CONDENSATE DRAIN

Condensate Trap Installation Instructions

Detailed steps for installing the condensate trap and connecting the drain line.

INSTALLING GAS PIPING

Natural to LP Propane Conversion Kit

Details conversion kits and orifices required for LP propane operation.

LIGHTING THE BOILER

FOR YOUR SAFETY, READ BEFORE OPERATING

Critical safety information to read before attempting to operate the boiler.

OPERATING INSTRUCTIONS

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

Initial Start-Up Procedures

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 maximum modulation.

Offset Screw Adjustment

Procedure for adjusting the offset screw to calibrate CO2 at minimum modulation.

Gas Line Pressure Test

BOILER AND HEATING SYSTEM PIPING

Boiler System Preparation

Boiler System Plumbing and Circulating Pumps

DOMESTIC HOT WATER (DHW) PIPING

DHW Description of Operation and Preheat Mode

FIELD WIRING

Wiring Connections and Protection

CASCADE INSTRUCTIONS

Managing Boiler Setup and Plumbing

INSTALLATION CHECKLIST

Installation, Start-up, and Operational Checks

Checklist for installation, startup, and operational verification.

ANNUAL MAINTENANCE AND INSPECTION

Annual Inspection Checklist and Cleaning Procedure

TROUBLESHOOTING

Servicing the Boiler and Diagnosing Inoperative Boiler

Safety precautions and steps to diagnose why the boiler is not operating.

Troubleshooting No Heat or No DHW

Troubleshooting DHW Not Hot Enough