Gas installation
The gas installation should be carried out by the registered installer in
accordance with the technical connection requirements stipulated by
the gas supply utility. Operate the system in accordance with the above
conditions.
Pipe connections
All pipe connections to the boiler should be made free from stress and
torque.
Electrical installation
Carry out the electrical connection and installation in accordance with
VDE regulations (DIN VDE 0100 and DIN VDE 0116), local regulations
and the technical connection requirements laid down by your electricity
supply company.
■ DIN VDE 0100: Installation of HV systems with rated voltages up to
1000 V.
■ DIN VDE 0116: Electrical equipment for combustion systems.
Operating instructions
According to EN 12828, section 5 and EN 12170/12171, the system
installer must produce operating instructions for the whole system.
Flue system
Only flue pipes that meet Building Regulations or that are CE-desig-
nated may be used with condensing systems.
Energy Saving Ordinance (EnEV)
■
Paragraph 11 (2), oil and gas combustion systems ≤ 400 kW:
Compulsory for low temperature or condensing boilers with CE des-
ignation that, according to the Declaration of Conformity, are identi-
fied as low temperature or condensing boilers (in accordance with
Directive 92/42/EEC), for buildings, whose annual primary energy
demand is not limited in accordance with EnEV paragraph 3 (1).
German Immissions Order (BImSchV)
Combustion systems must be operated so that the limits stated in the
1st BImSchV of 26.01.2010 or the TA Luft – for systems listed in the
4th BImSchV of 11.08.2009 – will not be exceeded. The 1st BImSchV
applies to oil and gas combustion systems for heating buildings or
rooms with water as a heat transfer medium.
■ 1st BImSchV, paragraph 6
Section 3, oil and gas combustion systems
– Oil and gas combustion systems > 400 kW for heating buildings
or rooms:
The manufacturer must certify that the efficiency is
≥
94 % (cal-
culated to EN 303–5, version 6/1999).
– The requirements of section 3 are deemed to have been met for
boilers > 1 MW if the boiler efficiency is η
K
≥
94 % (calculated to
DIN 4702-2).
– The nitrogen oxide content of the flue gas in oil and combustion
systems:
For fuel oil EL:
Rated output in kW Emissions in mg/kWh
≤ 120
110
> 120 ≤ 400
120
> 400 185
For natural gas:
Rated output in kW Emissions in mg/kWh
≤ 120
60
> 120 ≤ 400
80
> 400 120
■ 1st BImSchV, paragraph 11a
Oil and gas combustion systems from 10 MW to 20 MW: Single
combustion systems with a combustion output between 10 and
< 20 MW may only be operated, if the emission values in the follow-
ing table (as average values over half an hour) are not exceeded:
Appendix
(cont.)
76
VIESMANN
OIL/GAS BOILERS
12
5822 426 GB
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