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P-K MACH
Model Number:
Serial Number:
Start-Up Date: ___________________________
Patterson-Kelley
155 Burson Street
East Stroudsburg, PA 18301
Telephone: 570.476.7261
Toll Free: 877.728.5351
Fax: 570.476.7247
www.pattersonkelley.com
The information in this manual is the property of Patterson-Kelley. The descriptions and specifications contained in this manual were in effect at the time
this manual was approved for publication. While Patterson-Kelley will continue to support earlier model boilers to within a reasonable time limit, we
reserve the right to discontinue models and replacement parts at any time or change specifications or design without notice and without incurring any
/ NURO
GAS FIRED BOILER
®
®
Natural Gas or Propane Gas
CM300, CM399, CM500
C750, C900, C1050
Dual Fuel
C750GG, C900GG, C1050GG
Part # 1004905980
C.S.A Design-Certified
Complies with ANSI Z21.13/CSA 4.9
Gas-Fired Low Pressure Steam and Hot Water Boilers
C.S.A Design-Certified
Complies with ANSI Z21.13/CSA 4.9
Gas-Fired Low Pressure Steam and Hot Water Boilers
ASME Code, Section IV
Certified by Patterson-Kelley
Revised January 3, 2020
Patterson-Kelley 2020: All Rights Reserved.
obligation
INSTALLATION
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INSTALLATION
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Table of Contents
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Summarization of Contents
Introduction and Overview
Purpose of this Document
Explains the manual's objective and Patterson-Kelley's commitment to quality and safety.
Common Abbreviations
Provides a glossary of abbreviations used throughout the manual for clarity.
Site Preparation, Codes, and Venting
Location Setup and Clearances
Details requirements for boiler placement, leveling, and clearances to combustible surfaces.
Venting Considerations
Covers codes, standards, and planning for air inlet and exhaust venting systems.
Gas Piping and Water Quality
Addresses gas piping requirements and the importance of proper water quality for the heat exchanger.
Installation Procedures and Safety
Appliance and Electrical Connections
Details connections for water, gas, and electrical power supply, including terminal block assignments.
Combustion Air Requirements
Specifies requirements for combustion air supply for US and Canadian installations.
Safety Checks
Outlines essential safety checks before firing the boiler, including ignition and limit tests.
Operations, Maintenance, and Troubleshooting
Dual Fuel Boiler Operation
Explains the operation of dual fuel models, including changing fuel types.
NURO Control Panel and Operation
Covers the NURO control panel, power switch, and interface for boiler programming.
Preventative Maintenance Schedule
Provides a schedule for daily, weekly, monthly, semi-annual, and annual maintenance tasks.
Troubleshooting Common Issues
Addresses common operational problems, error messages, and potential resolutions.
Technical Information, Support, and Warranty
Parts and Technical Support
Information on ordering spare parts and accessing technical assistance.
Wiring Diagrams
Detailed wiring diagrams for different boiler models for installation and service.
P-K MACH® SPECIFIC LIMITED WARRANTY
Details the terms, conditions, remedies, and exclusions of the product warranty.
Appendices Overview
Reference sections including maintenance logs, derate schedules, water quality, and best practices.
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