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Precautions for hot water circuit, including water hardness treatment.
Instructions for cleaning new and existing heating systems.
Compliance checks before initial boiler startup by technician.
Step-by-step guide for correctly lighting the boiler burner.
Explanation of the functions of each key on the boiler control panel.
Instructions for setting time, max/min CH and DHW temperatures.
How to set timed programs for central heating and hot water.
A table listing user-adjustable parameters and their default settings.
How fault codes appear on the display and how to reset the boiler.
A table listing fault codes, their descriptions, and required actions.
How to check and maintain boiler pressure and fill the system.
Instructions for safely turning off the boiler by disconnecting power.
Advice on preventing damage during long periods of non-operation and frost.
Notes on converting the boiler to operate with LPG.
Guidelines for qualified service engineers performing annual checks.
Remarks for service engineers on installation and compliance.
Precautions and cleaning for hot water and heating circuits.
Guidance on choosing boiler location and connecting pipework.
Diagrams showing boiler dimensions and water/gas connection points.
A list of parts supplied with the boiler in its packaging.
Information on different flue configurations and installation warnings.
Installation options for horizontal flue terminals (Ø 60/100 mm).
Installation options for LAS flue ducts (Ø 60/100 mm).
Installation options for vertical flue terminals (Ø 60/100 mm).
Guidelines for installing separated flue-air ducting.
Installation options for separated horizontal flue terminals.
Requirements for grounding, wiring, and safe power connection.
Description of boiler terminal boards and connections for accessories.
Specific instructions for connecting the QAA73 temperature control device.
How to connect the outdoor sensor and set heating curve parameters.
Electrical connections for controlling zoned heating systems.
How to connect and integrate a remote water heater unit.
Steps for calibrating maximum and reduced heat output for gas changes.
Operations required before calibrating gas valve for LPG conversion.
Procedure for accessing and changing boiler parameters via the control panel.
Explanation of overheat thermostat, flue thermostat, flame sensor, etc.
Specific dimensions and instructions for electrode positioning.
How to measure combustion temperature and gas concentrations.
Procedure to activate the flue-sweeper function for efficiency.
Graphs illustrating pump head versus output for different models.
List of annual controls for optimal boiler efficiency and safety.
A diagram illustrating boiler components and their reference numbers.
A detailed wiring diagram showing all electrical connections.
A table detailing technical data for different boiler models.
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