Eco Heating Systems CB 105 HW, Инструкция по установке, обслуживанию и эксплуатации

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E93.1803.901 HW 57
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
NOTICE: specific resistance values of ECO-HS flue gas and air intake parts are used for these
examples. Other suppliers can have deviating values!
10.1.6 E
XAMPLE
A: T
WIN PIPE SYSTEM WITH SEPARATE PIPES FOR FLUE OUTLET AND AIR SUPPLY
Calculation example with given lengths: checking resistance
Water heater type: CB 155
Flue gas
Diameter: 150 mm
quantity
Pa Pa total
Straight tube /m total 9
1.3 11.7
Bend 90° 2
4.9 9.8
Flue outlet zeta=1.0 1
6.3 6.3
Total resistance flue gas outlet: 27.8
A
ir
su
pp
ly
Diameter: 150 mm quantity Pa Pa total
Straight tube /m total 8
1.5 12.0
Bend 90° 2
5.7 11.4
Air inlet zeta=1.0 1
7.3 7.3
Total resistance air supply: 30.7
Total resistance flue gas outlet and air supply: 58.5
The total resistance is less than 200 Pa.
This flue gas/ air supply system is functional.
NOTE: ECO specific resistance values are used in this example.
Flue and air pipes of other suppliers can have other values
CB 155