Wolf FGB-28 - Page 81

3064458_201811
81
Connection to a moisture-resistant room sealed
balanceduechimney,uegaschimneyoruesystem,
type C 43x
Horizontal balanced ues must not be more than 2 m long
whenconnectingthesystemtoabalanceduechimney.
The room sealed balanced ue chimney must be certied
by DIBT - Deutsches Institut für Bautechnik [Germany] or
CE-designated and must be approved for condensing
operation with positive pressure / negative pressure
respectively.
For sizing, use calculations to EN 13384.
Connectiontoamoisture-resistantuegaschimneyora
uesystemtypeB33foropenueoperation
Horizontal balanced ues must be no longer than 2 m when
connecting the system to a ue gas chimney. In addition to
the boiler connection bend, up to two 90° diverters may be
installed.
The ue gas chimney must be certied by DIBT [Germany]
or CE-designated, and must be approved for condensing
operation.
If necessary, obtain the connection piece from the chimney
manufacturer.
The air apertures to the boiler room must be completely free
from obstruction.
Connection to a moisture-resistant ue type B23 for
openueoperation
For this version, observe the regulations concerning
ventilation for boiler rooms acc. to DVGW-TRGI.
Connectiontoamoisture-resistantue,typeC53,C83x,
for room sealed operation
For horizontal air ducts, a maximum length of 2 m is
recommended. Observe special requirements for ues that
are not surrounded by combustion air acc. to DVGW-TRGI
2008 and all locally applicable combustion regulations.
Connectiontoacombustionairanduegassystemtype
C63x that is not tested together with the gas combustion
equipment
Original Wolf components are designed for long-term use,
are designated with the DVGW quality seal and are matched
for use with Wolf gas condensing boilers. When using third
party equipment that is only DIBT certied or CD-designated,
the installer himself is responsible for the correct sizing and
trouble-free function of the system. Faults, material losses
and injuries resulting from incorrect pipe lengths, excessive
pressure drop, premature wear with escaping ue gas and
condensate or incorrect function, e.g. through components
working themselves loose, are excluded from our warranty if
non-approved third party equipment is used.
If the combustion air is drawn from the shaft, the shaft must
be free from contamination.
Multiple connections / cascade
These boilers are suitable for multiple connections to a shared
chimney in accordance with DVGW Code of Practice G 635.
An internal non-return valve is used to prevent a return ow of
ue gas. The plumb clearance between two gas boilers must
be at least 2,5 m. The installed ue system must be approved
for multiple connections to a shared chimney. The approval
must be veried by relevant calculations in accordance with
re protection regulations.
Fig: Cascade Fig: Multiple connection
31.Technicalinformation,balancedue