Other Symbols In This Documentation; Units Of Measurement; Safety; Intended Use - Stiebel Eltron SOL 27 BASIC Utilisation Et Installation

1.2

Other symbols in this documentation

Note
Notes are bordered by horizontal lines above and below
the text. General information is identified by the symbol
shown on the left.
f Read these texts carefully.
Damage to the appliance and environment
Appliance disposal
Never cover the appliance
f This symbol indicates that you have to do something. The ac-
tion you need to take is described step by step.
1.3

Units of measurement

Note
All measurements are given in mm unless stated other-
wise.
1.4 Other relevant documents
Observe the operating notes contained in the operating and in-
stallation instructions of the fixing sets, control units, compact
installations and cylinders.
2.

Safety

2.1

Intended use

This flat-plate collector is designed to heat a heat transfer medium.
Any other use beyond that described shall be deemed inappro-
priate. Observation of these instructions is also part of the correct
use of this appliance.
2.2 Safety information
All steps up to the commissioning of this appliance must only be
carried out by qualified contractors.
Contractors are responsible for adherence to all currently applica-
ble regulations during installation and commissioning.
Operate the solar thermal system only if it is fully installed and all
safety equipment is fitted.
DANGER Injury
!
Where children or persons with limited physical, sensory
or mental capabilities are to be allowed to control this
system, ensure that this will only happen under super-
vision or after appropriate instructions by a person re-
sponsible for their safety. Children should be supervised
to ensure that they never play with the equipment.
3.

Equipment description

The flat-plate collector converts light into heat.
The light penetrates the glass cover. This is made from pre-stres-
sed, highly transparent single pane safety glass. The light strikes
the absorber and is converted there into heat. The highly selective
coating of the absorber and the thermal insulation on the back of
the absorber reduce heat losses to the ambience to a minimum.
A circulating heat transfer medium is pumped to the DHW cylinder,
thus transferring the energy generated by the collector in the form
of heat. Under certain operating conditions, the inside of the col-
lector may mist up with condensate. This can happen, for example,
with a large DHW cylinder with low temperature compared to the
environment or high atmospheric humidity.
4. Operation
The solar thermal system is designed so that no special measures
are required if no hot water is drawn, even for a prolonged period
(e.g. during a summer holiday).
Damage to the appliance and environment
The process medium must not be drained off when the
system is shut down.
5.

Cleaning, maintenance and care

5.1

Annual inspection

Ask your eating contractor to check the solar thermal system an-
h
nually
.
5.2

Self-cleaning

Generally, solar collectors require no cleaning, as they are largely
self-cleaning. However, in case of severe contamination, e.g. dust
or avian excrement, clean the collector with fresh water.
Damage to the appliance and environment
If you want to clean the collector with water, ensure that
the collector has not already been heated up by strong
sunlight.
5.3

Checking the system pressure

f Regularly check the pressure of the heat transfer medium
at the pressure gauge of the solar module. With a cold solar
thermal system (collector temperature below 30 °C), the
pressure should be between 0.35 and 0.4 MPa.
Notify your heating contractor if you notice large deviations from
the set value.