A.O. Smith 140 Benutzerhandbuch

 Installation and Service Manual Upsilon-Series 

Flue gases condensate inside the outlet system. Anticipate approx. 1 litre of con-

densate per m3 of natural gas spent on heating. The resulting condensate has to be 

drained.

Therefore, collective flue gas outlet systems have to be fitted with a condensate drai-

nage facility. Using a plastic siphon, the drainage is connected to the sewage system 

by means of an open connection. The diameter of the condensate drainage is 40 mm 

and may be made of PVC.

The condensate drainage of the flue gas vent system may be combined with the boi-

lers´ condensate pipe work headers.