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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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Table of Contents
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Summarization of Contents
Introduction
Purpose of this Document
Provides complete documentation support for P-K MACH® boilers featuring NURO® controls.
Common Abbreviations
Lists and defines abbreviations used throughout the manual for clarity.
Site Preparation
Initial Inspection upon Receiving
Instructions for inspecting the boiler for shipping damage upon receipt.
Storage Prior to Installation
Guidance on proper storage of the boiler before installation to prevent damage.
Compliance with Codes
Details boiler compliance with national, state, and local codes and standards.
Location Setup
Covers placement requirements and ensuring the boiler is level for proper operation.
Clearances (CM300-CM399-CM500)
Specifies minimum clearances around CM300-CM399-CM500 models for safety.
Clearances (C750-C900-C1050)
Specifies minimum clearances around C750-C900-C1050 models for safety.
Inlet Air and Exhaust Venting Considerations
Addresses codes, standards, and planning for air inlet and exhaust venting.
Gas Piping Considerations
Provides guidance on gas piping connections and safety precautions.
Water Quality Standard
Details water quality requirements for the cast aluminum heat exchanger.
Installation
Overview
Outlines installation requirements following site preparation guidelines.
Appliance Connections
Summarizes connection requirements for various P-K MACH® boiler models.
Electrical Connections
Details power requirements and electrical connection procedures for boiler models.
Combustion Air
Specifies air inlet requirements for combustion and ventilation for US and Canada.
Flue Gas / Exhaust Venting
Provides guidelines and requirements for flue gas and exhaust venting installations.
Removing an Existing Boiler
Instructions for safely removing an existing boiler from a common venting system.
Piping and External Connections
Covers gas and water piping, including specific connections and pressure testing.
Water Quality
Emphasizes the importance of proper water quality for the heat exchanger.
Pre-Start Checklist
A checklist of essential items to complete before attempting to start the boiler.
Safety Checks
Details crucial safety checks and tests for boiler systems before operation.
Fuel/Air Adjustments
Covers gas pressure adjustment and combustion setup for optimal performance.
Initial NURO Control Setup & Adjustment
Guides through the initial setup and adjustment of the NURO control system.
Typical Boiler Operating Conditions
Summarizes typical operating conditions and specifications for boiler models.
Dual Fuel Boiler Operation
Overview
Introduces dual fuel boilers and their independent gas trains and selector switch.
Changing Fuel Types
Step-by-step guide for changing fuel types on dual fuel boilers.
P-K MACH C750GG, C900GG & C1050GG
Details gas train locations and fuel selector switch for specific dual fuel models.
Operations
NURO Control Panel
Details the power on/off switch and NURO touch screen interface.
Normal Lighting and Shut-down Procedures
Provides procedures for normal boiler startup and shutdown operations.
Emergency Shut-Off
Instructions for performing an emergency shutdown of the boiler.
Maintenance
Preventative Maintenance
Outlines daily, weekly, monthly, semi-annual, and annual maintenance tasks.
Cleaning the Burner & Combustion Chamber
Provides instructions for cleaning the burner and combustion chamber annually.
After Repairs or Maintenance
Steps to follow after major repairs or preventative maintenance before service.
Sequence of Operations
Describes the operational sequence of the boiler during ignition and modulation.
Troubleshooting
Guides users through diagnosing and resolving common boiler issues and errors.
Parts/Technical Support
Terminal Block Assignments
Details terminal block assignments for high and low voltage connections.
Wiring Diagrams
Provides wiring diagrams for various P-K MACH® boiler models.
Boiler Parts Identification
Illustrates and identifies main boiler components for CM300-CM399-CM500 models.
Boiler Parts Identification (C750-C900-C1050)
Illustrates and identifies main boiler components for C750-C900-C1050 models.
P-K MACH® SPECIFIC LIMITED WARRANTY
Remedy
Outlines the remedy process for defects covered under the limited warranty.
Exclusions
Lists conditions and circumstances not covered by the limited warranty.
Proof of Purchase
Specifies requirements for proof of purchase for warranty claims.
Order of Precedence
Defines the order of precedence for warranty documents.
Boiler Fire-Test Report
Dual Fuel Addendum
Provides specific information for dual fuel boiler fire-test reports.
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