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Operating instructions for auroSTOR 0020111120_02 9
4.6 Cleaning the solar collector and cylinder
4.6.1 Cleaning the solar collectors
There is actually no need to clean the collectors. Like
skylights, solar collectors do get dirty. However, they
are kept reasonably clean naturally by rainfall.
4.6.2 Cleaning the cylinder
> Clean the outside of the cylinder only with a damp cloth,
using soapy water if it is especially dirty.
Do not use abrasive cleaning agents or solvents
(any type of scouring agent, petroleum etc.) since they
can damage the cladding and the cylinder fixtures.
4.7 Fault finding
What do I do if...
Fault Remedy
… fluid is dripping from the system? If possible, collect the fluid in a bucket and inform a competent
person.
the fluid level rises in the collecting container under the solar
pump unit?
Inform a competent person.
… fluid or steam is escaping from the expansion relief valve? Inform a competent person.
the controller issues a message telling me the sensor is faulty
or there is a cable break?
Inform a competent person.
the pressure shown on the pressure gauge of the solar pump unit
falls below the minimum operating pressure?
Inform a competent person.
… the panel on a flat collector has been damaged? Do not touch the collector interior. Inform a competent person.
… the glass tubes of a tube collector have been damaged? Do not touch the collector interior.
Inform a competent person.
... the cylinder is not providing sufficient hot water? Check that the hot water temperature is set correctly on the con-
troller (¬ section 4.3, max. 60°C recommended). If the settings
are correct, the cylinder may be calcified. Then: Inform a competent
person.
... a thermal cut-out trips? Inform a competent person.
... water flows from the expansion relief valve? Inform a competent person.
Tab. 4.1 Troubleshooting by the operator
Operation 4
9


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