Technical data

Manual - Solar hot water systems4
Solar cylinder and cylinder installation
Pressure equipment directive 97/23/EC
Directive of the European Parliament and Council from
29th May, 1997 for the approximation of the laws on
pressure equipment of the Member States
EN 12977-3
Thermal solar systems and components;
Custom built systems,
Part 3: Performance characterisation of stores for solar
heating systems
EN 12897
Water supply - specification for indirectly heated
unvented (closed) storage water heaters
EN 806-1
Specifications for installations inside buildings conveying
water for human consumption - Part 1: General
EN 1717
Protection against pollution of potable water
installations and general requirements of devices to
prevent pollution by backflow
EN 60335-2-21
Safety of household and similar electrical appliances;
Part 2: Particular requirements for storage water
heaters (hot water cylinders and hot water boilers)
(IEC 335-2-21: 1989 and supplements 1; 1990 and 2; 1990,
modified)
Lightning protection
ENV 61024-1
Protection of structures against lightning – Part 1:
General principles (IEC 1024-1: 1990; modified)
BS 6651 Code of practice for protection of structures
against lightning
2.2 Regulations in Great Britain
Building Regulation, dating from 1991 (England and
Wales)
Requirement G3, L1 and Regulation 7
BS 7671
Requirements for electrical installations
(IEE Wiring Regulations, 16th edition)
BS 6759-1
Directive for the usage of the safety assembly for hot
water cylinders
2.3 Safety instructions
The entire solar system must always be installed and
operated in accordance with recognised technical
standards.
d
Danger!
Risk of falling!
Make sure you adhere to the valid work
protection regulations, in particular when
working on the roof. Make absolutely sure you
wear anti-fall devices whenever there is a risk
of falling. (We recommend Vaillant fall
protection systems, item no. 302 066.)
Observe the accident prevention regulations of
the trade associations.
H
Danger!
Risk of being burned or scalded by hot
components! Install and replace collectors or
collector parts on very cloudy days. Perform
installation work on sunny days only in the
morning or evening or with the collector
covered.
Danger!
Risk of being burned or scalded by hot solar
fluid or components! Fill and flush the solar
system when the collectors are cold. Cover the
collectors while doing so.
Danger!
Risk of being burned or scalded by escaping hot
steam!
Steam can escape from the expansion relief
valve of the solar pump unit if the system is
shut down. To avoid injuries, you must connect
the expansion relief valve to a collecting
container with a hose line.
Danger!
Risk of being scalded by hot water! With the
Vaillant auroSTOR combi cylinder, the outlet
temperatures at the taps can be up to 85 °C. To
provide effective protection against scalding in
the event of secondary return, integrate a hot
water thermostat mixer in the system (refer
to Section 5.5.1 and 5.5.2).
Danger!
Risk of being burned or scalded by escaping hot
steam! Steam can escape from unblocked
automatic bleeders if the system is shut down.
Therefore block all automatic bleeders after
bleeding.
2 Overview of standards, safety instructions