Table of Contents
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Installation and Service Instructions
LoganoUS/CA GC 144 II
Read carefully prior to installation and maintenance.
Gas boiler
WARNING!
Installation, adjustment, modification, opera-
tion or maintenance of the heating system
carried out by unqualified personnel may
result in property damage, personal injury,
and loss of life.
The directions of this installation and main-
tenance manual must be followed precisely.
Contact a qualified service company, service
provider or the gas company if support or
additional information is required.
CAUTION!
Before placing this boiler in operation
observe the safety instructions of this installa-
tion and maintenance manual.
CAUTION!
The operating manual is a component of the
technical documentation handed over to the
operator of the heating system. Discuss the
instructions in this manual with the owner or
operator of the heating system and ensure
that they are familiar with all information
required for operation of the heating system.
Keep this installation and maintenance
manual available for future reference.
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Table of Contents
Related Manuals for Buderus GC144/4
Summarization of Contents
Safety Considerations
Key to Symbols
Explains symbols used in the manual for clear communication.
Safety Instructions
Provides critical safety guidelines for installation, operation, and maintenance.
Product Description
Correct Use
Defines the intended application and purpose of the boiler system.
National Regulations
Outlines compliance requirements with national and local codes.
Boiler Operating Conditions
Specifies the maximum operating temperature and pressure for the boiler.
Tools, Materials and Accessories
Lists necessary tools and helpful accessories for installation and maintenance.
Disposal
Advises on environmentally responsible disposal of packaging and components.
Dimensions and Connections
Dimensions and Connections
Details the physical dimensions and connection points of the boiler unit.
Scope of Delivery
Scope of Delivery
Lists all components included with the boiler package.
Moving the Boiler
Moving the Boiler
Describes safe methods for moving the boiler.
Placing the Boiler
Placing the Boiler
Guides on positioning the boiler in the installation space.
Boiler Installation
7.1 Preparing for Installation
Outlines initial steps before beginning boiler installation.
7.2 Connecting the Heating System
Guides on how to connect the boiler to the heating system piping.
7.3 Electrical Connections
Details the procedures for making safe and compliant electrical connections.
7.4 Fuel Gas Supply Connection
Covers connecting the boiler to the fuel gas supply line.
7.4.1 Gas Connections
Provides specific instructions for gas pipe diameter and connections.
7.4.2 Installation at High Altitudes
Advises on considerations for boiler installation at higher elevations.
7.5 Filling Heating System and Checking for Leaks
Explains how to fill the system and test for leaks.
Check Openings for Combustion Air Supply and Venting
Check Openings for Combustion Air Supply and Venting
Details requirements for proper air supply and venting.
Total Air Supply from Inside the Building
Specifies requirements for air openings within the building.
Total Air Supply from Outside the Building
Details requirements for air openings connecting to the outside.
Requirements for Connection to Chimneys or Venting Systems
Requirements for Connection to Chimneys or Venting Systems
Covers regulations for connecting to chimneys and venting.
Separation of a Boiler from a Common Flue System
Explains procedures for separating a boiler from a shared venting system.
Flue Pipe Installation
Flue Pipe Installation
Guides on the correct installation of flue pipes and vent dampers.
Placing the Heating System in Operation
Electrically Connecting the Vent Damper
Details how to electrically connect the vent damper.
11.1 Placing the Heating System in Operation
Provides instructions for starting up the boiler system safely.
Verifying the Appliance
Steps to verify the boiler's components and settings.
Testing Gas Train for Leaks
Instructions for performing a leak test on the gas supply system.
11.1.1 Prepare Pressure Measurement
Guides on setting up for gas pressure measurement.
11.1.2 Turning on Heating System
Steps to safely turn on the boiler and heating system.
Final Start-up Procedures
Verifying the Ignition Spark
Checks for proper ignition spark generation.
Checking Gas Supply Pressure
Measures and verifies the gas supply pressure.
Checking Orifice Pressure
Measures and adjusts the gas orifice pressure.
Checking for Leaks
Final checks for gas leaks after startup.
Checking Aquastat
Verifies the function of the maximum aquastat.
Start-up Protocol
Start-up Protocol
A checklist for recording startup procedures and measurements.
Informing the Owner/Operator and Handing Over Technical Documentation
Instructions for briefing the owner and providing documentation.
Taking the Heating System Out of Operation
14.1 Normal System Shut-down
Procedures for safely shutting down the heating system.
14.2 Emergency Shut-down Procedures
Steps for immediate shutdown in emergency situations.
Boiler Inspection and Maintenance
15.1 Why is Regular Maintenance Important?
Explains the benefits and necessity of routine boiler maintenance.
15.2 Testing the Flue System, Including Combustion Air, Air Inlets and Ventilation Openings
Checks venting, air supply, and openings for proper function.
15.3 Inspection of the Boiler and Burner
Visual check of the boiler and burner for cleanliness and external condition.
15.4 Preparing Boiler for Cleaning
Steps to take before cleaning the boiler components.
15.5 Cleaning the Boiler
Instructions for cleaning the boiler, including brush and wet methods.
15.5.1 Cleaning the Boiler with Brushes
Detailed steps for cleaning the boiler using brushes.
15.5.2 Wet Cleaning (Chemical Cleaning)
Procedures for wet cleaning the boiler with chemical agents.
15.6 Cleaning the Burner
Instructions for cleaning the burner assembly.
Moving Burner Back and Forth to Remove Water
Describes a method for removing water from burner rods.
Inspection of the Pilot Flame
Checks the pilot flame for correct operation and appearance.
Performing Final Checks
Final safety checks after maintenance work.
15.7 Maintenance Protocol
A form to record completed maintenance tasks and measurements.
15.8 Troubleshooting the GC 144 II
Provides a guide to diagnose and resolve common boiler issues.
Technical Specifications
Main Gas Orifice Identification and Manifold Pressure for Natural Gas
Details gas orifice sizes and pressures for natural gas.
Main Gas Orifice Identification and Manifold Pressure for LP
Details gas orifice sizes and pressures for propane gas.
Electrical Circuit Diagrams
Wiring Diagram - GC 144 II
Presents the electrical wiring schematic for the boiler.
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