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NTI VM110 User Manual

NTI VM110
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Vmax Boiler
Model Number: VM110, VM110P
Version Date: 2015-02-09
INSTALLATION AND OPERATION INSTRUCTIONS FOR
Vmax 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 ..................................................... 22
6.0 CONDENSATE DRAIN .................................................................................................... 25
7.0 INSTALLING GAS PIPING .............................................................................................. 27
8.0 LIGHTING THE BOILER ................................................................................................. 29
9.0 GAS VALVE AND BURNER SET-UP ............................................................................ 32
10.0 BOILER AND HEATING SYSTEM PIPING ................................................................... 35
11.0 DOMESTIC HOT WATER (DHW) PIPING .................................................................... 46
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 ..................................................................................................... 71
19.0 PARTS LIST ...................................................................................................................... 74
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 # 85171
NEW PRODUCT
Fire-tube Boiler
w/ Built-in Pump
H

Table of Contents

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NTI VM110 Specifications

General IconGeneral
Efficiency95% AFUE
Modulation Ratio5:1
Heat Exchanger MaterialStainless Steel
Fuel TypeNatural Gas
Input BTU110, 000 BTU/h
Warranty12 years heat exchanger

Summary

Hazard Symbols and Definitions

Safety Symbols and Definitions

Defines hazard symbols like DANGER, WARNING, CAUTION, and NOTICE.

Safety and Operating Procedures

To Turn Off Gas To Boiler

Procedure for safely shutting off the gas supply to the boiler.

Gas and Venting Information

Liquefied Petroleum (LP) Propane

Important considerations for converting and operating the boiler with LP propane.

Exhaust Vent / Air-Inlet Piping

Safety requirements for the boiler's exhaust and air intake piping system.

Venting and Air Intake

General Venting

General rules and requirements for the boiler's venting system.

Direct Vent Installation

Best practices for installing a direct vent system for combustion air.

Combustion Air-inlet Contamination

Avoiding contaminants in the combustion air intake to prevent damage.

Venting System Installation Procedures

Mandatory Pre-commissioning Procedure for Plastic Venting

Essential steps before powering up the boiler with plastic venting.

Near Boiler Vent/Air-inlet Piping

Guidelines for connecting vent and air-inlet piping near the boiler.

Boiler Startup and Operation

For Your Safety, Read Before Operating

Crucial safety warnings and instructions before operating the boiler.

Operating Instructions

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

Boiler Startup Procedures

Initial Start-Up

Procedure for initial power-up and boiler sequence execution.

Gas Valve and Burner Adjustment

Gas Line Pressure and Combustion Parameters

Measuring and adjusting gas pressure and combustion parameters.

Combustion Calibration and Analysis

Throttle/Input Adjustment Screw

How to adjust the throttle/input screw for optimal combustion.

Flue Gas Analysis and Adjustment

Procedure for analyzing flue gas and adjusting burner operation.

Potable Water Safety

Legionella Hazard

Risks associated with Legionella bacteria in potable water systems.

Scald Hazard

Risks of scalding from hot water and preventative measures.

Field Wiring and Electrical Connections

Wiring Connections

General guidelines and precautions for making wiring connections.

Installation and Startup Checklist

Installation

Checklist items for completing the boiler installation.

Start-up

Procedures and checks for initial boiler startup.

Annual Maintenance and Inspection

Annual Inspection Checklist

Items to inspect annually for boiler performance and safety.

Installer Menu Operations

Adjusting settings

Procedure for adjusting settings within the installer menu.

Troubleshooting: Lockout and Error History

Boiler Troubleshooting

Diagnosing an Inoperative Boiler

Steps to diagnose and troubleshoot a boiler that is not operating.

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