3
4 205 116 / 02
Important notes
1
Important information
1.1 Other instructions
All instructions relevant to your system can be found
in the Hoval system manual! In exceptional cases,
the instructions can be found enclosed with the
components.
Further information sources
- Hoval catalogue
- Standards, regulations
1.2 Safety information
The system may only be placed in operation if all the
relevant standards and safety regulations have been
complied with. At least the following conditions must
be satisfied for a trial operation:
1. Safety valve installed (closed system).
2. Control in operation (connected to the mains current
supply system).
3. Sensor for the safety temperature limiter mounted
in the immersion sleeve.
4. System filled with water.
5. Expansion vessel connected.
6. Flue gas connectors connected to the flue gas
pipeline at the chimney or flue.
7. An adequate supply of fresh air must be guaranteed.
8. The burner is preset.
1.3 Regulations, official approvals
The following regulations are to be complied with for
installation and operation:
Germany
- DIN EN 12831 Heating systems in buildings –
Method for calculation of the design heat load.
- EN 303 Heating boilers with forced draught burners.
- DIN EN 12828 Sheet 1 and 2
Heating systems in buildings – design of water-
based heating systems.
- DIN 4755 Oil-fired systems.
Design, construction and safety engineering
requirements.
- DIN 4756 Gas-fired systems; construction,
execution, technical safety requirements, planning
and execution.
- DIN 18160 House chimneys; requirements, planning
and execution.
- TRD 702 Steam boiler plants with calorifiers of
the group II.
- DIN EN 13384 Chimneys – Thermal and fluid
dynamic calculation methods.
- TRD 721 Safety devices against excess pressures /
safety valves / for steam boilers of Group II.
- VDI 2035 Prevention of damage by corrosion and
the formation of scale in hot water heating systems.
- DIN 57 116 / VDI 0116 Electrical equipment for
firing systems (VDE Regulation).
- For further standards applicable in Germany, see
appendix N-430 020.
Austria
- ÖNorm 7550
- ÖNorm B 8130 Open water heating systems;
safety devices.
- Norm B 8131 Closed water heating systems; safety,
execution and testing requirements.
- ÖNorm B 8133 Hot water production systems;
technical safety requirements.
- ÖNorm B 8136 Heating systems, space requirements
and other building requirements.
- ÖNorm M 7515 Calculations of dimensions of
chimneys; terminology, calculation procedure.
- ÖNorm H 5171 Heating systems, construction
engineering requirements.
- ÖVGW TR-Gas G1 Technical directives for low
pressure gas installations.
- ÖNorm M 7445 Gas blower burner.
Switzerland
- Requirements of the VKF Cantonal Fire Insurance
Association.
- Fire brigade regulations.
- Requirements of the SVGW Swiss Association of
Gas and Water Suppliers.
- SWKI 91-1 Aeration and ventilation of the boiler
installation room.
- SWKI 88-4 Water treatment for heating, steam and
air conditioning systems.
- SWKI 93-1 Safety engineering installations for
heating systems.
- KRW Corrosion through halogen compounds.
- KRW/VSO/FKR Plug-in electrical connections on
heating boilers and burners
and further regulations and standards issued by
CEN, CEN ELEC, DIN, VDE, DVGW, TRD and the
legislative body.
Also to be complied with are the regulations of the local
building authorities, insurance companies and chimney
sweeping operations. The regulations of the responsible
gas supply company are also to be complied with and
any necessary official approval obtained.
