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Beeston Heating ACER 60 Design Manual page 11

Wall-hung condensing premix gas fired boiler 60-180 kw
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Bees ton ACER wall-hung c ondens ing boiler 60-180kW
D ESIGN MANUAL
6.3 Typical flue systems
6.3.1
Concentric flue systems
6.3.2 Two pipe system through the wall, flue gas discharge and fresh air from outside
Flue size Ø
Maximum (L)
90º Elbow
equivalent
45º Elbow
equivalent
Flue system size
L
Maximum
90º
equivalent
45º
equivalent
• The maximum length L does not include the
number off elbows.
• Flue horizontal run should be installed sloping back
to the boiler.
• This system can be vertical through the roof if
required.
ACER
ACER
60
80
mm
80
100
m
16
27
m
1.25
m
1.0
P a g e 1 1
The maximum length L does not include the
number of elbows.
Flue horizontal run should be installed sloping
back to the boiler.
ACER
ACER
60
80
80/125
100/150
mm
8.0
13.5
m
1.5
2.0
m
1.25
1.5
ACER
ACER
ACER
100
120
100
130
22
40
1.5
1.25
ACER
100
100/150
11.0
2.0
1.5
ACER
150
180
130
130
32
26
2.0
1.75

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