Buderus Logamatic SC40 User Manual

Notes for the user
Logamatic SC40 - Specifications subject to change without notice.
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5
5.4 Checking operating pressure, with possible re-adjustment
V Check the system pressure on the pressure gauge (Æ Fig. 3) when the system is cold
(about 20 °C).
If pressure drops
A pressure drop can be caused by the following:
– There is a leak in the solar thermal circuit.
– An automatic air vent has expelled air or vapour.
If the pressure of the solar thermal system has dropped:
V Check whether heat transfer fluid has collected in the holding tank under the solar pumping sta-
tion.
V Call in a qualified heating engineer if the system pressure drops 0.5 bar below the level recorded
in the commissioning log (Æ Installation and servicing instructions for the solar pumping station).
5.5 Cleaning the collectors
Due to the self-cleaning effect when rain falls, the collectors do not usually need cleaning.
Pressure fluctuations in the solar pumping circuit due to temperature changes are nor-
mal and do not lead to faults in the solar thermal system.
Danger: Risk of death by falling from roof
V Inspection, maintenance and cleaning work on the roof must only be carried out by
qualified technicians.

Buderus Logamatic SC40 Specifications

General

Brand	Buderus
Model	Logamatic SC40
Category	Network Router
Language	English