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Details the model and serial number of the boiler, showing its location on the bottom.
Instructions for installing a shut-off cock for the Domestic Hot Water (D.H.W.) inlet.
Identifies the keys and LCD display on the boiler's control panel for operation.
Explains LCD display symbols, error codes (E01-E52), and their corresponding functions.
Highlights warnings, the Benchmark Checklist, and installer registration requirements.
Step-by-step guide on how to refill the boiler system, including using the filling loop.
Details the procedure for initial ignition, including power supply and valve checks.
Explains how to switch between C.H. and D.H.W. modes using the control panel.
Describes how to adjust the C.H. water temperature using control panel keys.
Explains how to adjust C.H. temperature when an external probe is installed.
Details how to adjust D.H.W. temperature using control panel keys.
Provides instructions on how to switch the boiler off and long-term inactivity procedures.
Advice on room thermostats, radiator valves, and adjusting heating temperature.
Information on the built-in anti-frost system and optional external protection.
Guidance on ensuring the condensate drain is not blocked or modified.
Advises annual maintenance and cleaning by an authorised service engineer.
Instructions for safely cleaning the boiler's external panels.
Explains how to interpret operational faults and volatile/non-volatile lockouts.
Addresses issues like water from pressure relief valve and reduced hot water temperature.
Guide to accessing and interpreting boiler status information via INFO mode.
Details the function of the flue probe and safety thermal fuse in case of overheating.
Provides an overview of the boiler's components and a main diagram.
Lists heat input, useful output, and gas supply pressures for the 24C model.
Details physical dimensions such as height, width, depth, and weight.
Lists heat input, useful output, and gas supply pressures for the 28C model.
Lists heat input, useful output, and gas supply pressures for the 32C model.
Covers hydraulic performance curves and expansion vessel technical data.
Lists relevant regulations, British Standards, and documents for installation.
Specifies rules for installing the appliance, especially in rooms with baths or showers.
Details flue termination requirements, placement, and clearances from obstructions.
Covers gas supply connections, pipework sizing, and testing for tightness.
Addresses air supply needs and ventilation requirements for cupboards or compartments.
Provides guidance on condensate pipe material, trap, fall, and connection methods.
Details recommendations for water pipes, jointing, gradients, and the by-pass valve.
Covers mains water connections, pressure limits, and water treatment advice.
Specifies earthing, wiring, fused spur isolation, and connection points for the power supply.
Emphasizes statutory controls, combustion product discharge, and avoiding aggressive air contents.
Covers wall fixing, flue system installation, and minimum clearance requirements.
Guidance on positioning and securely mounting the boiler bracket to the wall.
Illustrates boiler dimensions and lists fittings/pipe sizes for connections.
Steps for mounting the boiler, cleaning connections, and attaching valves and pipes.
Instructions for flue pipe installation, inclining, and terminal positioning.
Details available flue kits (coaxial, split pipes) and their specifications.
Information on vertical flue kits, their bends, and associated length reductions.
Describes pluming kits for discharging combustion products at different locations.
Step-by-step guide for connecting the boiler's electrical power supply.
Instructions for wiring room thermostats and zone valves to the boiler.
Guidance on installing and connecting the optional external temperature probe.
Details remote connection options and hydraulic system examples with separators.
Stresses that commissioning must be done by a Gas Safe Registered Engineer.
Covers preliminary electrical safety checks and gas supply installation procedures.
Steps for filling the D.H.W. system, including closing taps and opening valves.
Procedure for filling the C.H. system, including air purging and system flushing.
Ensures condensate pipe is leak-free and traps are correctly filled with water.
Verifies gas supply pressure and checks for harmonic noise from the boiler.
Checks inlet pressure, gas supply line, and performs combustion analysis (CO/CO2).
Details boiler lighting, ignition sequences, and operation in heating/DHW modes.
Tests the ignition device by closing the gas cock and observing boiler response.
Ensures flue system soundness and checks the condensate drain pipe's integrity.
Guide on explaining boiler operation, controls, and safety to the end-user.
Procedure to enter programming mode and access installer parameters (P00).
Steps to enable remote control functionality by changing parameter A21.
Explains how to set the K coefficient based on heating system efficiency.
Guide to setting the maximum heating temperature based on climatic curves.
Details how to set the heating temperature range for the boiler (high/low temperature).
Adjusts the pump's post-circulation time after a heat request.
Configures the minimum time between two boiler ignitions.
Procedure to reset all parameters to the factory default settings.
Instructions for configuring the control board after replacement for the correct boiler type.
Emphasizes that conversion must be done by a qualified Gas Safe Registered Engineer.
Details steps for converting the boiler from Natural Gas to LPG.
Stresses that maintenance must be performed by a Gas Safe Registered Engineer.
Guide on how to program or activate the maintenance period reminder.
Instructions for removing front and side panels for access to internal components.
Steps for refitting the boiler's external panels in reverse order.
Procedure for draining the domestic hot water and central heating circuits.
Instructions for cleaning the condensing primary exchanger and burner unit.
Details how to check and correct the pressure of the heating expansion vessel.
Guidance on descaling the domestic hot water exchanger by a service engineer.
Covers periodic checks of the flue system and compulsory combustion analysis.
Instructions to check the condensate drain pipe for deposits and blockages.
Covers visual inspection of joints and connections, and gas supply pressure re-checks.
Addresses water inhibitor levels and setting the boiler flue sweep function.
General| Boiler type | Condensing |
|---|---|
| Mounting | Wall-mounted |
| Efficiency | 93% |
| Output | 24 kW |
| Weight | 31 kg |
| Warranty | 2 years |
| Fuel Type | Natural Gas |
| Fuel | Natural Gas |
| Dimensions (HxWxD) | 700 x 400 x 290 mm |
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