Regulations, Standards And Guidelines - eta SH Installation Manual

Before setting up the boiler system, consult
the responsible chimney sweep
This device complies with
EN 303-5
EN 60335-1/A1:96 Safety of electrical appliances
DIN 4702 part 1 and 4
97/23/EC
2006/42EC Machinery directive
89/106/EEC
products
73/23/EEC
89/336/EEC EMC directive
93/68/EEC Amendment to 72/73
Conformity has been demonstrated. The relevant
documents and the original declaration of confor-
mity (CE) are in the manufacturer's files.
Regulations
• State building regulations
• Industrial and fire safety regulations
• State fire regulations
• In Germany, the EnEG (Energy Saving Act)
with its enacted EnEV ordinances for energy-
saving insulation and energy-saving building
technologies
• In Germany, 1.BImSchV, initial ordinance for
enforcement of the federal pollution control act
for small-scale furnaces.
• In Austria, Article 15 a, agreement on protective
measures regarding small-scale furnaces
• In Austria, Article 15 a, agreement on saving
energy
• In Austria, ÖNORM H 5170, heating systems -
construction and fire safety requirements
• In Switzerland, VKF/AEAI fire safety regulations
25-03
SH Montage
Heating boilers for solid fuels
Heating boilers
Pressure equipment directive
Regulations for building
Low voltage directive
and 89/336

Regulations, standards and guidelines

Standards and guidelines
• VDI 2035, prevention of damage due to corrosion
and scaling in hot-water heating systems with
flow temperatures up to 120°C. Instead of the
maximum hardness of 11.2 dH for 20 to 50
lt/kW specific system volume, the maximum
lime content of the initial fill-up for the boiler
described here is limited to 20,000 lt°dH (system
volume in litres multiplied by the hardness in
degrees of German hardness).
• EN 12828, heating systems in buildings -
planning for hot-water heating systems. The
safety temperature limiter (100°C) is already
installed in the boiler described here. The
contractor must install a sufficiently large
expansion tank (at least 10% of the system
volume), a safety valve and a thermal emergency
cooling valve.
• EN 12831, heating systems in buildings - method
for calculating standard heating load
• EN 13384, flue systems - thermal and fluid-
dynamic calculation methods
• EN 15287-1, flue systems for heating appliances
dependent on ambient air - planning, installation
and commissioning
• Only in Germany, DIN 18160, flue systems -
planning and design
Buffer storage tank is essential
For a wood fire that cannot be indefinitely reduced
in intensity, minimum heating load can be a
problem. A buffer that can store surplus boiler
output is essential.
In Germany, 1. BImSchV (first Federal Emission
Control Act) stipulates a minimum buffer volume
of 55 litres per kW of boiler output. For a 30 kW
boiler, that's 1,650 litres, which is a thoroughly
adequate buffer volume.
The lower the return temperature to the buffer,
the greater its heat storage capacity. The buffer
utilisation of radiators can be improved conside-
rably with very finely adjustable thermostat valves
(Kv less than 0.35).
With a fresh water module, the hot water supply
can be integrated in the buffer to save space, and
solar can also be integrated in the buffer very
simply and effectively.
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2012-11