Glow-worm Clearly Solar System Hydraulics - Manual (Page 7)

7
1 System Specifications
1.1 Intended use
The solar system is used for the solar-supported supply of
DHW.
Any other use is considered to be improper. The manufacturer
/ supplier is not liable for any resulting damage. The user
alone bears the risk.
Intended use includes the observance of the system
description and all other applicable documents, as well as
adherence to the maintenance and inspection conditions.
IMPORTANT: We accept no liability for any damage or injuries
caused by failure to observe this manual.
At the end of this manual is a commissioning protocol, which
should be filled in by the installer and/or commissioning
engineer and handed over to the user.
1.2 Design and function of the solar system
The solar system consists of four main components:
The collectors, which absorb the solar radiation and utilise it.
The solar control, which monitors, displays and controls all
functions of the system.
The solar pump unit, which transports the solar heat.
The solar cylinder.
The solar collector transforms solar energy into heat and
transfers the heat energy to a frost-protected solar fluid.
The solar pump of the solar pump unit ensures the heat is
transported from the collector to the twin coil solar cylinder via
a pipe system. The solar pump unit is controlled by the solar
control.
The solar control switches the solar pump on or off as soon
as the difference in temperature between the collector and
solar cylinder falls below or exceeds the preset value. If the
solar energy is insufficient, the control system switches on the
boiler so that the upper third of the cylinder is reheated to the
set value for the domestic hot water temperature. In addition
the solar cylinder can be reheated by the immersion heater
installed by the manufacturer.
The solar expansion vessel compensates pressure
fluctuations in the solar circuit.
On days on which the solar radiation is insufficient to heat the
DHW in the cylinder, the stored water must be reheated by a
heating system. This can be done with boilers or electrically
with an immersion heater.
The optional protection vessel protects the expansion
vessel from increased temperatures in the solar circuit. We
recommend installing a protection vessel.
Local authority planning permission may be required for
the installation. The local authority should be notified
about the intended installation.
The solar system is a closed system and must be bled
carefully. We recommend the automatic air separator
system for this purpose (item no. 0020054969). It works fully
automatically and does not need to be subsequently blocked.
The automatic air separator system must be installed in an
area in which no steam can enter, preferably in the return pipe
between the solar pump unit and the solar cylinder.