Ventilation Air Systems; 1Silencers - Buderus Logano GB125 Installation And Maintenance Instructions Manual

3 Specification
OC
Boiler size
GB125 18
22
30
35
Boiler size
GB125 18
22
30
35
Tab. 17 Maximum flue length
Variant 1: Chimney entry: 1 bend, connection piece L=1.5 m
Variant 2: Chimney entry: 1 bend, connection piece L=1.5 m, 1 90° bend, 1 tee
3.10 Ventilation air systems (OC
Only Buderus ventilation air systems listed in the table
on the right are approved (including a combination of
both systems).
The permissible length of the ventilation air system for
the plastic DN60 system is reduced by
• 1.0 m per 45° bend
• 1.5 m per 90° bend
• 4 m per 1 m air hose (in combinations)
• 15 m when using a silencer
The maximum available negative pressure at the boiler
inlet hose is 200 Pa.
3.10.1 Silencers
If the ventilation air is drawn in via an outer wall connec-
tion, then the use of a silencer is strongly recommended.
If the ventilation air is drawn in via the roof, the silencer
may be dispensed with.
18 Logano GB125 oil condensing boiler - Technical specifications are subject to change without prior notice.
Balanced flue operation - maximum flue length (m)
OC
13 33x
GA-K and
DO/DO-S
Variant 1 Variant 2
5.0 11.5
5.0 15.5
5.0 19.5
5.0 21.5
Open flue operation - maximum flue length (m)
flue system, plastic DN 80/125
GA
Variant 1 Variant 2
25.0 25.0
25.0 25.0
19.5 18.0
21.5 20.0
43x
flue system, plastic DN 80/125
Variant 1
11.5 21.5
15.5 25.0
18.0 20.5
20.0 22.4
B
23x
according to
EN 13 384-1
, OC , OC , OC
53x 63x
Air hose Santo SL DN 63
Flexible air hose, 4 m long, incl. hose
connector
Plastic plug-in system DN60
Straight pieces 250, 250
1000, 1500, 2000 mm long, 45° and
90° bends plus silencers1 are avai-
lable
Tab. 18 Approved ventilation air systems
1
with test port
2
incl. silencer max. 4 m
OC
53x
GAF-K Combustion air pipe via outer
wall, LAS ventilation shaft
Variant 2
20.1
24.9
18.0
20.1
GN
)
83x
1
and 2 special hose clips
1
, 500,
(Buderus accessory)
OC
43x
according to
EN 13 364-1
Maximum length from
boiler rear panel
m
2
8
35