Flue Gas Connection - Viessmann Vitodens 222-F Installation And Service Instructions For Contractors

Installing the boiler
Condensate connection
The condensate pipe is connected to the discharge
■
pipe of the safety valve. The supplied condensate
hose meets the temperature requirements for CE
certification.
■ We recommend connecting the condensate pipe
internally to the domestic waste water system, either
directly or via a tundish.
If the condensate pipe is routed outside the building,
■
use a pipe with min.
7
from frost. Avoid long external pipe runs.
!
Please note
A frozen condensate pipe can result in faults
and damage to the boiler.
Always protect condensate pipes against frost.
■ Observe local building regulations.

Flue gas connection

Note
The "System certificate" and "Skoberne GmbH flue
system" labels enclosed with the technical documenta-
tion may only be used in conjunction with the
Viessmann flue system made by Skoberne.
Connecting several Vitodens to a shared flue sys-
tem
If connecting several Vitodens to a shared flue system,
install a back draught safety device in each boiler.
■ Multiple vertical connections:
Back draught safety device available as separate
accessory
■ Flue gas cascade:
Back draught safety device in standard delivery for
the flue gas cascade (accessories)
Install the back draught safety device:
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.
■
Inspection port covers checked for secure and tight
■
seating.
■ Apertures for ensuring sufficient combustion air sup-
ply are open and cannot be closed off.
■ Applicable regulations on installing and commission-
ing flue systems have been followed.
14
(cont.)
30 mm and protect the pipe
Observe local waste water regulations.
Note
Fill the trap with water before commissioning.
Connecting the balanced flue pipe
Flue system installation instructions.
Back draught safety device installation instruc-
tions
Change control unit to operation with a shared flue
system:
■ In the commissioning assistant, select the "Multiple
connections" setting under "Flue system".
or
Set parameter/code 7E:1 in the "General" group.
■
Danger
Leaking or blocked flue systems or an insuffi-
cient supply of combustion air cause life threat-
ening poisoning due to carbon monoxide in the
flue gas.
Ensure the flue system functions correctly. Aper-
tures for combustion air supply must not be able
to be closed off.
Prevent condensate drainage via a wind protec-
tor.