10.1 Important safety regulations and requirements
General information
The boiler is built to comply with TRD 702 and EN 303, 677, 483/297,
and is used in heating systems to EN 12828. Observe the operating
conditions stated in these guidelines. The appliance complies with EN
677 regarding the stated rated heating outputs and the requirements
laid down for heating equipment. During installation and commission-
ing of this boiler, observe all local Building Regulations and rules con-
cerning combustion systems, as well as the following standards, reg-
ulations and directives:
■
EN 12828:
Heating systems in buildings – Design of hot water heat-
ing systems.
■
EN 13384:
Flue systems – thermal and flow calculations.
■
DIN 4753:
DHW systems for DHW and process water.
■
DIN 1988:
Technical Regulations for Drinking Water Installations
(TRWI).
■
EN 298:
Burner control units for gas burners and boilers with or
without fans.
■
EN 676:
Pressure-jet gas burners.
■
DVGW-TRGI 2008:
Technical rules for gas installations.
■
DVGW Code of Practice G 260/I and II:
Technical rules for gas quality.
Gas installation
The gas installation should be carried out by a 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 of load and
torque stress.
Electrical installation
Carry out the electrical connection and installation in accordance with
VDE Guidelines (DIN VDE 0100 and DIN VDE 0116), local regulations
and the technical connection requirements laid down by your power
supply utility.
■
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, paragraph 5 and EN 12170/12171, the system
installer must provide operating instructions for the whole system.
Flue system
Use flue pipes for condensing boilers which are approved by the build-
ing inspectorate.
Fill and top-up water
■
VDI 2035:
Prevention of damage through corrosion and scaling in
hot water heating systems with rated operating temperatures up to
100 °C.
Checks as part of the Building Regulations approval procedure
As part of the Building Regulations approval procedure, condensing
combustion equipment is tested by the flue gas inspector [where appli-
cable] for adherence to Building Regulations and any generally rec-
ognised technical rules. The State Building Regulations, their imple-
mentation orders and the combustion equipment orders, as well as the
general building approvals and permits of the higher supervisory
authority, in individual cases, are part of the Building Regulations
requirements.
Appendix
Gas condensing boilers
VIESMANN
95
5822 449 GB
10