E93.1001EN.C Manual CD
+
28
6.6
Six typical examples
A
:
Twin pipe system with separate pipes for flue gas and air supply
C63
B
:
Twin pipe system with separate pipes and concentric roof terminal
C33
C
:
Single pipe for flue gas outlet only (air supply from water heater room)
B23
D
:
Concentric pipe for flue gas/air supply (roof-mounted)
C33
E
:
Concentric pipe for flue gas/air supply (wall-mounted)
C13
F:
Separate air supply duct & flue duct in different pressure zone
C53
E
XAMPLE
A:
T
WIN PIPE SYSTEM
(C63)
Calculation example with given lengths: checking resistance
The total resistance is less than 200 Pa. This flue gas / air supply system is
functional.
Be aware: Eco specific resistance values are used in this example. Flue
and air pipes of other supplier can have other values
Water heater type:
CD
+
180
Fl
ue
gas
Diameter: 130 mm
Number
Pa
Pa total
Straight tube m¹
total
9
6
54
Bend
90°
2
6
12
Flue outlet
conical
1
0,9
0,9
Total resistance flue gas outlet:
66.9
A
ir
supp
ly
Diameter: 130 mm
Number
Pa
Pa total
Straight tube m¹
total
8
2
16
Bend
90°
2
2
4
Air inlet
H/D = 1,0
1
13,1
13,1
Total resistance air supply:
33,1
Total resistance flue gas outlet and air supply:
100 Pa
E
XAMPLE
B:
T
WIN PIPE SYSTEM WITH CONCENTRIC ROOF TERMINAL
(C33)
Calculation example with given lengths: checking resistance
The total resistance is less than 200 Pa. This flue gas / air supply system is
functional.
Part number. roof terminal: E04.018.001 - Inox
Part number. adaptor conc/twin: E04.018.033 - Inox/PP
Water heater type:
CD
+
120
Fl
ue
gas
Diameter: 100 mm
Number
Pa
Pa total
Straight tube m¹
total
6
6,5
39
Bend
90°
2
6,5
13
Roof terminal
concentric
150/100
1
45
45
Adaptor conc./par.
150/100
1
22
22
Total resistance flue gas outlet:
119
A
ir
supp
ly
Diameter: 100 mm
Number
Pa
Pa total
Straight tube m¹
total
6
4
24
Bend
90°
2
4
8
Total resistance air supply:
32
Total resistance flue gas outlet and air supply:
151 Pa
120
2
m
2
m
2m
2
m
2
m
2m
180
4
m
2m
2
m
2
m
2m
5
m
