It enables, for example, individual room control units or building man-
agement systems to be directly connected to Vitotronic control units.
Further modifications, extensions and maintenance work can be car-
ried out at any time with the system in operation.
Appendix
12.1 Safety regulations and requirements
Notification and required permits
Federal Immissions Act (BImSchG) [Germany]
According to paragraph 4 onwards of the Federal Immissions Act, in
conjunction with the 4th BImSchV, a permit is required (see point 8)
for combustion equipment with the following combustion output and
for the use of the following fuels:
■ Solid or liquid fuels (except fuel oil EL) with a combustion output from
1 MW,
■ Fuel oil EL and gaseous fuels with a combustion output from
20 MW
Permit requirement and testing to the Health & Safety at Work Act (BetrSichV) [Germany]
Extract from the Health and Safety at Work Act (BetrSichV) [Germany]
paragraph 13 to 15
13 Permit requirement
(1) Assemblies with fired or otherwise heated pressure devices that
are at risk of being overheated, used for the generation of steam
or hot water with a temperature in excess of 110 ºC, which must
be classified according to appendix II, diagram 5 of the Directive
97/23/EC as category IV (see Declaration of Conformity in the
product documentation of Viessmann boilers), require a permit
by the appropriate authority (generally the Planning Authority in
your locality).
(2) Apply for permits in writing. The permit is deemed to have been
granted if the relevant authority has not objected to the system
installation within a period of 3 months.
Paragraph 14 Inspection prior to commissioning
(1) The user must ensure that a system requiring supervision (all
pressure equipment to 97/23/EC) is tested by an authorised
testing authority for compliant status.
(3) Tests in accordance with (1) can be carried out by an authorised
person on pressure equipment and assemblies that are to be
classified in accordance with Directive 97/23/EC and diagram 5
as category I or II.
Paragraph 15 Recurring tests
(8) For pressure equipment and assemblies that are classified in
accordance with Directive 97/23/EC and diagram 5 as category
III, implement the following tests, subject to the product of max.
permissible pressure Ps and the crucial volume V being greater
than 1000 bar · l or if they are classified as category IV:
– external inspection no later than 12 months after commis-
sioning
– internal inspection no later than 3 years after commissioning
(water pressure test possible as alternative. For max. test
pressure, see type plate)
– strength test no later than 9 years after commissioning.
General information regarding low pressure hot water boilers with safety temperatures of up to
110/120 ºC
The pressure equipment (hot water boiler) has been built in accord-
ance with TRD 702 and should be equipped in line with these Tech-
nical Regulations. Observe the operating conditions in these Technical
Regulations. Subject to type, this boiler meets the following standards
regarding its stated rated output and technical requirements:
■ DIN 4702 or EN 303
(See details on the type plate and the enclosed documentation). Dur-
ing installation and commissioning of these boilers, observe all local
Building Regulations and regulations concerning combustion systems,
as well as the following Standards, Regulations and Directives:
■ DIN 18160-1: Flue system (design versions).
■ DIN 1988: Technical Regulations for Drinking Water Installations
(TRWI).
■ DIN 4753: DHW systems for DHW and process water.
■ EN 12828: Heating systems in buildings – Design of hot water heat-
ing systems.
■ EN 13384: Flue systems – Thermal and flow calculations.
■ Also observe EN 12953 with:
– Low pressure hot water boilers with safety temperatures > 110 to
120 ºC.
■ EN 12953-1: Boilers with large water chambers – General informa-
tion.
■ EN 12953-6: Boilers with large water chambers – Equipment
requirements.
■ EN 12953-7: Boilers with large water chambers – Requirements for
combustion systems for liquid or gaseous fuels for the boiler.
■ EN 12953-8: Boilers with large water chambers – Safety valve
requirements
■ EN 12953-10: Boilers with large water chambers – Feed water and
boiler water requirements
Use of oil combustion
■ DIN 4755: Oil combustion equipment.
■ DIN 4787-1: Atomising oil burner (in excess of 100 kg/h throughput).
■ DIN 51603-1: Liquid fuels; fuel oil EL, minimum requirements.
■ EN 230: Atomising oil burners as mono-block version – equipment
for safety, monitoring and control, as well as safety times.
■ EN 267: Pressure-jet oil burner.
Use oil combustion
■ EN 298: Burner control units for gas burners and boilers with or
without fans.
■ EN 676: Pressure-jet gas burner.
■ DVGW Code of Practice G 260/I and II: Technical rules for gas
quality.
■ DVGW-TRGI 2008: Technical rules for gas installations.
■ TRF 1996: Technical rules for LPG.
Control units
(cont.)
OIL/GAS BOILERS
VIESMANN
75
5822 426 GB
12
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