Technical data

19
CTC EcoZenith i550 Pro
General Information
2.7 Recharging Bedrock/Ground
If a liquid-water heat pump is connected, a diverting valve can be installed on
the solar circuit and connected to the brine circuit (the loop in the bore hole
or the ground heat loop) to charge the bedrock/ground when the EcoZenith
is fully charged (factory set 85°C).
The solar panel temperature should be factory set at 60°C warmer than the
brine temperature in order for charging to start. When the difference between
the temperature in the solar panel and the brine circuit falls to 30°C, charging
is stopped. If the brine circuit becomes warmer than the factory-set value of
18°C, recharging will also be interrupted, as the temperature then becomes
too high for the heat pump to work.
Safety measures for the collector/solar system are available.
See also Protection Collector Menu in the Detail Description Menus
chapter (“Installer/Settings/Solar panels/Protection collector”) and also
Winter Mode Menu in the Detail Description Menus chapter (“Installer/
Settings/Solar panels/Winter mode”)