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Lochinvar KnightXL KBN601 User Manual

Lochinvar KnightXL KBN601
80 pages
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Installation & Operation Manual
Models: 400 - 801
is manual must only be used by a
quali ed heating installer / service
technician. Read all instructions,
including this manual and the Knight
XL Service Manual, before installing.
Perform steps in the order given.
Failure to comply could result in
severe personal injury, death, or
substantial property damage.
WARNING
Save this manual for future reference.
KBXII-I-O_100161488_2000013409_Rev P

Table of Contents

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Lochinvar KnightXL KBN601 Specifications

General IconGeneral
ModelKBN601
Gas Connection1-1/4" NPT
TypeCondensing Boiler
Fuel TypeNatural Gas
Electrical Supply120V, 60Hz, 1Ph

Summary

Determine Boiler Location

Provide Clearances

Specifies required clearances for installation and service access.

Corrosive Contaminants and Sources

Lists products and areas that contain contaminants harmful to the boiler.

Removing from Common Vent System

Steps and precautions when removing a boiler from an existing common vent system.

Prepare Boiler

Gas Conversions

Procedures for converting the boiler for propane gas operation.

General Venting

Install Vent and Combustion Air Piping

Instructions for installing the vent and combustion air piping systems.

PVC/CPVC Vent Pipe and Fittings

Details approved PVC/CPVC vent pipe materials and fittings for installation.

Polypropylene Venting

Information on using polypropylene vent materials and their approved manufacturers.

Stainless Steel Venting

Details on approved stainless steel vent materials, fittings, and terminations.

Sidewall Direct Venting

Vent/Air Termination – Sidewall

Instructions for sidewall termination of vent and air piping.

Sidewall Termination Clearances

Specifies minimum clearances for vent and air terminations from walls, overhangs, etc.

Prepare Wall Penetrations

Instructions for creating wall openings for vent and air piping penetrations.

Vertical Direct Venting

Vent/Air Termination – Vertical

Instructions for vertical termination of vent and air piping.

Hydronic Piping

Flow Switch, Relief Valve, and Gauge Installation

Instructions for installing the flow switch, relief valve, and temperature/pressure gauge.

Gas Connections

Connecting Gas Supply Piping

Procedures for connecting the gas supply piping to the boiler.

Natural Gas Requirements

Details on pipe sizing and supply pressure for natural gas.

Propane Gas Requirements

Details on pipe sizing and supply pressure for propane gas.

Gas Pressure and Valve Replacement

Specifies gas pressure requirements and warns against altering the gas valve.

Field Wiring

Line Voltage Connections

Instructions for making 120 VAC power and pump wiring connections.

Condensate Disposal

Condensate Drain Installation

Instructions for installing the condensate drain line, including trap and neutralizer.

Start-up

Fill Water and Chemistry

Procedures for filling the boiler with water and checking water chemistry.

Fill and Test Water System

Procedures for filling and testing the water system, including purging air.

Gas Leaks and Thermostat Checks

Procedures for checking for gas leaks and thermostat circuit integrity.

Final Checks and Boiler Startup

Comprehensive checklist and steps before starting the boiler.

Operating Instructions

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

Flame and Combustion Analysis

Detailed steps for analyzing flue products and checking combustion.

Operating Information

Sequence of Operation

Describes the boiler's operational sequence from call for heat to standby.

Maintenance

Service Technician Responsibilities

Outlines annual startup and maintenance tasks for service technicians.

Boiler Heat Exchanger Cleaning

Detailed instructions for cleaning the boiler's heat exchanger.

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