NTI Trinity Tft399 User Manual

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Trinity Tft
Model Numbers: Tft60 - 399
Version Date: 2018-09-07
INSTALLATION AND OPERATION MANUAL FOR
TRINITY Tft BOILER
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 ..................................................... 25
6.0 CONDENSATE DRAIN .................................................................................................... 27
7.0 INSTALLING GAS PIPING .............................................................................................. 27
8.0 LIGHTING THE BOILER ................................................................................................. 32
9.0 GAS VALVE AND BURNER SET-UP ............................................................................ 34
10.0 BOILER AND HEATING SYSTEM PIPING ................................................................... 38
11.0 LEAD LAG INSTRUCTIONS ........................................................................................... 50
12.0 FIELD WIRING ................................................................................................................. 53
13.0 WIRING SCHEMATICS ................................................................................................... 58
14.0 INSTALLATION CHECKLIST ........................................................................................ 60
15.0 ANNUAL MAINTENANCE AND INSPECTION ........................................................... 61
16.0 TROUBLESHOOTING ..................................................................................................... 63
17.0 PARTS LIST ...................................................................................................................... 86
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 # 84535
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NTI Trinity Tft399 Specifications

General

Brand	NTI
Model	Trinity Tft399
Category	Boiler
Language	English

Summary

5.0 Vent/Air-Inlet Termination Clearances

7.0 Installing Gas Piping

8.0 Lighting the Boiler

For Your Safety, Read Before Operating

Crucial safety information regarding operating the boiler, including gas leak procedures.

To Turn Off Gas To The Boiler

Step-by-step instructions for safely turning off the gas supply to the boiler.

9.0 Gas Valve and Burner Set-Up

Gas Line Pressure

Procedure to measure and ensure correct gas line pressure for boiler operation.

Adjustment

Instructions for adjusting the throttle/input screw for burner operation and combustion calibration.

11.0 Lead Lag Instructions

Multiple Boiler Applications

Lead Lag Instructions – Central Heating

Lead Lag Instructions – Domestic Hot Water

12.0 Field Wiring

Line Voltage Connections

Low Voltage Connections

Modbus Communication Connections

14.0 Installation Checklist

Installation

Start-up

Steps to follow for initiating the boiler's operation after installation.

Operational Checklist

A checklist to verify proper operation and system checks post-startup.

Before Leaving

15.0 Annual Maintenance and Inspection

Annual Inspection Checklist

A checklist for routine annual inspection by a qualified technician.

Combustion Chamber Cleaning Procedure

Detailed steps for cleaning the boiler's combustion chamber.

16.0 Troubleshooting

Servicing the Boiler

Check 120VAC and 24VAC at the Boiler

Steps to verify electrical power supply to the boiler for troubleshooting.