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Details physical dimensions of NXR4 boiler models including A, B, and ØD.
Provides data on mean diameter, cross sectional area, length, volume, and surface area.
Details fuel usage rates for Natural Gas/Oil and specifies minimum operating pressure.
Covers flue connection, flue gas volume, and natural/mechanical ventilation needs.
Specifies connection sizes and water flow rates at different temperatures.
Details minimum return temperature and the dry weight of the boiler.
Specifies minimum clearances required around the boiler for access, erection, and maintenance.
Details the base requirements, footprint, and plinth considerations for boiler installation.
Lists standard components included with the boiler such as sections, smoke box, and control panel.
Describes the integral control panel features: hours run meters, thermometers, thermostats, and switches.
Lists optional accessories and information on how the boiler is packaged and shipped.
Outlines general requirements, standards, and regulations for boiler installation.
Provides guidance on correct siting, base preparation, and site requirements for the boiler.
Details ventilation needs, flue system considerations, and common flue systems.
Guidelines for setting up and operating the boiler's water circulation system, including flow rates.
Covers boiler protection measures, system water quality, and corrosion prevention.
Outlines the steps for erecting the boiler, including section assembly and alignment.
Details risk assessment steps and required personal protective equipment for installation work.
Provides guidance on safe manual handling and confined space precautions.
Covers safety measures for electrical work on the boiler, including isolation and earthing.
Details preparatory checks, facility requirements, and tool options before installation.
Information on substances hazardous to health during erection and recommended precautions.
A checklist of actions to complete before boiler erection and assembly.
Step-by-step instructions for assembling boiler sections using nipples and sealing compounds.
Illustrates flue gas path and how sections are built together with diagrams.
Diagrams showing the layout and configuration of boiler sections for different models.
Instructions for pulling boiler sections together using assembly tools and sealing joints.
Details on fixing tie rods and assembling the heat exchanger components.
Instructions for connecting flanges and manifolds, including outlet/inlet manifolds.
Procedures for hydraulic testing, fitting the flue hood, and flue connection.
Steps for installing the burner support plate and related components.
Instructions for assembling, fitting, and sealing the burner door.
An exploded view diagram identifying all components of the boiler casing.
Instructions for applying lagging, fitting uprights and cross members.
Details on fitting casing panels and adjusting the overall casing assembly.
Identifies the components, switches, and indicators on the instrument control panel.
Instructions for wiring and connecting the instrument control panel to power and system components.
Illustrates the correct routing for electrical cables and capillaries within the boiler.
Steps for installing the flue gas thermometer into the flue duct.
Details on connecting the burner cables to the control panel via Weiland plugs.
Instructions for connecting a single-phase electrical supply to the boiler instrument panel.
Instructions for connecting a three-phase electrical supply to the burner and instrument panel.
Connecting volt-free signals and guidelines for connecting the gas supply to the burner.
Guidelines for connecting the oil supply to the burner and water system connections.
A checklist of pre-commissioning tasks to be completed before boiler startup.
Checks performed before the boiler is run with fuel, including safety controls.
Tests to ensure the gas train and valves are sound and leak-free.
Steps for commissioning the boiler with fuel, adjusting settings, and checking operation.
Instructions for cleaning flue surfaces, combustion chambers, and flueways.
Cleaning recommendations based on fuel type (Gas, Oil, Sludge Gas) for efficiency.
Maintenance checks for ancillaries, controls, and safety interlocks.
Explains the symbols and components used in the boiler wiring diagram.
Diagram and explanation of the pump overrun system using a pipe thermostat.
Instructions for using additional volt-free contacts for remote indication.
Identifies major boiler components using diagram labels from Fig. 22.
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General