General catalogue 2013 - Orkli
General catalogue 2013 - Orkli
General catalogue 2013 - Orkli
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SOLAR HEATING SYSTEMS<br />
DRAIN UNIT:<br />
HYDRAULIC UNIT WITH DRAIN-BACK SYSTEM<br />
A solution to prevent<br />
overheating and<br />
freezing.<br />
ADVANTAGES<br />
BIGGER SAVINGS simply select all the<br />
components you need<br />
COMPATIBLE with all the collectors, heat<br />
exchangers and regulators on the market<br />
For INSTALLATIONS with a larger number<br />
of collectors than other market alternatives<br />
HOW DOES IT WORK?<br />
System off -<br />
Collectors empty<br />
OFF<br />
Maximum<br />
temperatures<br />
OFF<br />
System off -<br />
Collectors empty<br />
(no danger of vaporisation)<br />
OFF<br />
OFF<br />
ON<br />
ON<br />
System start-up -<br />
Filling circuit<br />
temperatures -0ºC<br />
System off -<br />
Collectors empty<br />
(no danger of freezing)<br />
OFF<br />
OFF<br />
ON<br />
System running -<br />
Forced circulation<br />
OFF<br />
94<br />
Tel.: +34 943 80 94 80 Fax: +34 943 80 52 41 www.orkli.com
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