Installation
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19
We reserve the right to make any changes due to technical modifications!
Installation and Servicing Instructions Logamax plus GB142-24/30/45/60 • Version 12/2004
Buderus Hydronic Systems • http://www.buderus.net
An optional concentric vent/air intake body (see fig. 15,
pos. 1) can be used for the installation of a vertical
venting system as well as for a horizontal venting
system. The concentric vent/air intake body can be
ordered by Buderus Hydronic Systems,
part no. BRYKGAVTO601CV.
The appliance can also be operated with separate air
intake and exhaust piping (see fig. 18 and fig. 20).
The termination shall be at least 3 ft (910 mm) away from
a gas utility meter, service regulator or the like (for room
air applications only).
The termination shall terminate at least 4 ft (1220 mm)
below, 4 ft (1220 mm) horizontally from, or 1 ft (305 mm)
above any door, window, or gravity air inlet into any
building.
All vent pipes must be glued, except for the flue gas
adapter (fig. 14, pos. 1) which is screwed into place and
the first connection to the flue gas adapter (fig. 14,
pos. 2). Installed you can slide the pipe onto the adapter,
properly supported and the exhaust pipe must be
pitched a minimum of a ¼ inch per foot back to the appli-
ance. This allows the condensate to drain away.
All combustion air and vent pipe materials and fittings
must comply with the following:
NOTICE:
Observe the listed maximum lengths of
vent system, which are appliance model
dependent. The maximum permissible
lengths are listed in table 4, page 22.
Fig. 14
Vent pipes
1
2
Item
Material
United states
Canada
Vent or air pipe
and fitting
PVC schedule 40
ANSI/ASTM D1785
CSA or ULC
certified only
PVC-DWV
ANSI/ASTM D2665
CPVC schedule 40
ANSI/ASTM F441
ABS-DWV schedule 40
ANSI/ASTM D2661
Pipe
cement/primer
PVC
ANSI/ASTM D2564
CPVC
ANSI/ASTM F493
ABS
ANSI/ASTM D2235
NOTICE
Do not use cellular core pipe.
NOTICE
Ensure that a condensate drain is always
installed at the exhaust connection see
Chapter “7 Connecting the condensate
water drain” on page 23