5 TESTING THE HEATING UNIT 5.1 Preliminary checks - Check that the safety valve is not blocked. - Check for water leaks. Before starting up the heating unit, carry out the following checks: - Make sure the heating unit has been installed in compliance with If the heating unit is not installed in compliance with the relevant legal requirements.
Need help?
Do you have a question about the LYRA C and is the answer not in the manual?
Questions and answers