Installation must ensure specific distances from walls to allow for proper mounting and venting.
A for Eurotherm C 275 (in Polish, or English with Polish references). eurotherm c 275 sei instrukcja pdf 67 top
The phrase appears to be a specific search string for a technical manual, likely originating from a user looking for documentation for the Euroterm C 275 SEI , a gas water heater (often called a "terma gazowa" in Poland). Installation must ensure specific distances from walls to
Page 67, top: only a single line. "The last cascade is not a failure. It is a door." eurotherm c 275 sei instrukcja pdf 67 top