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General safety rules and warnings for appliance operation and maintenance.
Explanation of warning symbols and signal words used in the manual.
Detailed diagrams showing the physical layout of components for various appliance models.
Schematic diagrams illustrating the hydraulic and functional systems of various appliance models.
Details on temperature display, failure display, and private working program display.
Overview and access to service functions, including 1st and 2nd level modes.
Detailed electrical wiring diagrams for various appliance models, covering ZWE, ZWC, and ZSC types.
Electrical specifications and resistance values for specific ZWC and ZWE appliance models.
Electrical specifications and resistance values for ZWC/ZSC/ZWE appliance models.
Guidance on interpreting error codes, failure categories, and their display.
Detailed troubleshooting steps for specific error codes like A4, A2/C3, A3, etc.
Gas setting values (burner pressure, gas flow) for ZWE 24/28-5 MFA/MFAE and ZWE 24-5 MFK types.
Gas setting values (burner pressure, gas flow) for ZWC/ZSC models.
Resistance tables for CH flow, DHW, Flue gas, and Combustion chamber NTC sensors.
Explanation of various display codes and their corresponding meanings.
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General