Technical data

Instructions on commissioning, maintenance, and troubleshooting for auroSTOR 0020111119_02 25
6.2.3 Realisation of solar circuit piping
a
Danger!
Risk of death from electric shock!
Incorrect installation or a faulty power
cable can result in a supply voltage on the
pipes, which can cause personal injury.
> Attach earthing pipe clamps to the pipes
and connect the earthing pipe clamps to
a potential equalisation bar using 16 mm
2
cable.
b
Caution!
Risk of damage to electronics resulting
from lightning strikes!
Without potential equalisation, lightning
can destroy the electronics in the solar
heating system, heating system, or building.
> Earth the solar circuit in accordance with
the requirements of "BS7671 IEE Wiring
Regulations". Attach earthing pipe
clamps to the solar circuit pipes, for
instance, and connect the earthing pipe
clamps to a potential equalisation bar
using 16 mm
2
cable.
> Connect the collectors to an existing buil-
ding lightning protection system.
b
Caution!
Risk of damage to the collectors due
to excessive pressure.
The safety devices in the solar circuit can
be knocked out of operation if you install a
two port motorised valve in the pipes of the
solar heating system.
> Never install a two port motorised valve
in the pipes of the solar heating system.
Observe the following points to ensure perfect operation
with maximum energy utilisation:
> Ensure that the piping diameter is not too large, since
this could result in low flow velocities in the solar hea-
ting system; this makes the system less efficient.
> Design all system components to ensure an even flow
rate with the required nominal flow rate.
> Ensure sufficient heat protection for the pipes so that
not too much heat energy is lost before it reaches the
consumers. For pipes laid outside, choose weather- and
UV-resistant insulation and insulation which is resistant
to the pecking of birds.
> Vent the system completely for commissioning and main-
tenance, since air in the system significantly impairs its
efficiency.
Installation 6