Notes For The User; Why Is Regular Maintenance Important; Important Notes On Heat Transfer Fluids; Checking The Solar Thermal System - Buderus Logamatic SC40 Operating Instructions Manual

Notes for the user

5 Notes for the user
5.1

Why is regular maintenance important?

Your solar domestic hot water system or domestic hot water and central heating booster system is
virtually maintenance free.
However, we recommend that you have your system serviced at least every 2 years by your heating
engineer. In that way you can ensure smooth and efficient operation and early detection and elimi-
nation of any possible damage.
5.2

Important notes on heat transfer fluids

Warning: Risk of injury from contact with heat transfer fluid (water and propylene gly-
col mixture).
V If heat transfer fluid comes into contact with eyes: hold eyelids wide open and thor-
oughly rinse eyes with running water.
V Keep heat transfer fluid out of reach of children.
The heat transfer fluid is biodegradable.
Your engineer has been instructed to ensure, when commissioning the solar thermal system, that
the heat transfer fluid provides protection against freezing at tempertures down to at least –25 °C.
5.3

Checking the solar thermal system

You can contribute to the smooth functioning of your solar thermal system by doing the following:
– Checking the temperature difference between flow and return and between the collector and cyl-
inder twice a year
– Checking the operating pressure for solar pumping stations
– Checking the heat quantity (if a calorimeter has been installed) and/or the operating hours.
Enter the values in the log on page 15 (which may also be copied).
The completed log can help qualified technicians when checking your solar thermal
system and performing maintenance.
Logamatic SC40 - Specifications subject to change without notice.
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