Making Connections On The Flue Gas Side; Exhaust Gas Connection; Condensate Drain Pipe; Neutralising System (If Included) - Viessmann Vitocrossal 300 Installation Instructions Manual

Safety connections
Low water indicator
Tests have verified that the low water indicator speci-
fied by EN 12828 is not required.

Making connections on the flue gas side

Exhaust gas connection

1.
Fig.6

Condensate drain pipe

A
Fig.7
Condensate drain
A

Neutralising system (if included)

Site the neutralising system behind the boiler and con-
nect it to the condensate drain.
Connect the neutralising system to the drainage sys-
tem.
(cont.)
3.
Note
Equip boilers with a safety valve that is type-tested
according to TRD 721 [or local regulations] and is
identified in accordance with the relevant system.
1. Connect the flue outlet to the flue via the shortest
possible run to the chimney, maintaining a slight
rise (min. 3°). Avoid sharp kinks.
2. Insert the boiler flue connection (accessories) into
the flue outlet as far as it will go.
3. Connect the flue system.
Flue pipe (internal diameter):
Flue system installation instructions
4. Fit the siphon.
Route the condensate drain pipe with a fall below the
anti-flooding level of the flue gas collector.
The condensate drain must be accessible for inspec-
tion.
Connection external :
7
Neutralising system installation instructions
125 mm
7
19 mm
9