Viessmann VITODENS 242-F Installation And Service Instructions Manual page 26

Installation sequence
Installing the boiler
Flue gas connection
Note
■ The labels "System certificate" and
"Skoberne GmbH flue system"
enclosed with the technical documen-
tation may only be used in conjunction
with the Viessmann flue system made
by Skoberne.
■ During installation and positioning of
the flue system, observe Part L and
BS 5440 building regulations. (GB
only)
Connecting the balanced flue
Flue system installation instruc-
tions
Do not carry out commissioning until
the following conditions are met:
■ Free passage through the flue gas
pipes.
■ Flue system with positive pressure is
gas-tight.
26
(cont.)
■ Apertures for ensuring sufficient com-
■ Applicable regulations on installing
bustion air supply are open and cannot
be closed off.
and commissioning flue systems have
been followed.
Danger
Leaking or blocked flue systems
or an insufficient supply of com-
bustion air cause life threatening
poisoning due to carbon monox-
ide in the flue gas.
Ensure the flue system functions
correctly. Apertures for combus-
tion air supply must not be able to
be closed off.