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General| Modulation range | 20-100% |
|---|---|
| Nominal heat output 80/60 °C | 20 kW |
| Energy efficiency class | A |
| Heating capacity | 20 kW |
| Max working pressure | 3 bar |
| Fuel type | Natural gas |
| Type | Condensing gas boiler |
Instructions and symbols for personal safety and operational reliability during maintenance.
Important notes regarding qualified technicians, original parts, and maintenance contracts.
Instructions for cleaning and refilling the siphon, and checking its fit.
Procedure for checking and replacing the sacrificial anode on CGS models.
Steps to disassemble, remove, and reassemble the access trap cover on CGW models.
Steps for performing a test run, including resetting MCBs and setting the selector.
Procedure for conducting a ventilation test and checking the LAF for soundness.
Instructions for re-adjusting the CO₂ content based on flue gas test results.
Procedure for adjusting CO₂ content at upper load using emissions test mode.
Procedure for adjusting CO₂ content at lower load (soft start) using the zero point screw.
Steps to check CO₂ adjustment with the boiler closed and observe CO emissions.
Final steps to complete adjustments, including switching off and checking for leaks.
