Installation manual

ENGLISH
Conergy AS
Owners Manual
4
What is an open circuit system?
An Open Circuit System is one where the water used in the household circulates through the solar
collector panels. The circulating pump draws colder water from the lower section of the container
and circulates this water through the collectors before returning it to the container at a point
higher than the point of draw-off thus transferring solar energy to the storage tank. This system
type is used in locations where the ambient temperature never falls below freezing point (0°C or
32°F) and where the water quality is good – less than 600 ppm Total Dissolved Solids (TDS).
What is a closed circuit system?
In this system the pump circulates the transfer fluid around the collector circuit. The water within the
tank circulates via thermosyphon, from the cold bottom of the tank, through the heat exchanger,
where it is heated before returning the container at a point higher than the point of the cold water
inlet.
Open Circuit System
Closed Circuit System
1.3.1
1.3.2
1 Owners Information