11 | Flue gas connection for gas devices
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11 Flue gas connection for gas devices
This chapter only applies to gas devices.
DANGER
Harmful flue gases
Risk of suffocation due to inadmissible concentration of harmful flue gases.
n
Make sure that there are sufficient ventilation options in the installation
area.
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Carry out a flue gas analysis before commissioning the device.
11.1 Regulations for flue gas connection
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The devices are classified as per DVGW G631 from 03/2012 as flue gas
types A3 and B23, B13, B13BS. Observe the regulations for the respective
types.
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For installation, observe the local standards in their respective valid version.
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The flue gas connection must comply with the regulations of NFPA 96.
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Observe the maintenance instructions for gas components.
Flue gas and room volume
The following values only apply to the individual device:
6 half
size
6 full
size
10 half
size
10 full
size
20 half
size
20 full
size
Min. room size with con-
stant ventilation (m³)
26 56 44 80 88 -
Min. room size with free
ventilation (m³)
52 112 88 160 176 -
Min. combustion air sup-
ply (m³/h)
21 45 35 64 70 128
Min. combustion air sup-
ply (ft³/h)
742 1590 1236 2260 2472 4521
Max. flue gas volume (m³/
h)
38 108 78 160 150 311
Max. flue gas volume (ft³/
h)
1342 3814 2755 5651 5298 10983
Max. flue gas temperature
(°C)
350 520 470 590 430 520
Max. flue gas temperature
(°F)
662 968 878 1094 806 968
*Combustion air supply through ventilation and air conditioning systems
Combustion air supply
The combustion air supply is ensured by free ventilation or constant ventilation,
one near the ceiling, one near the floor.
Free ventilation
The combustion air supply is ensured via windows and doors.
Constant ventilation
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