Indirect Free Cooling with the STULZ Explorer
The STULZ Explorer range is available in Free Cooling version, which allows significant energy savings, mainly in cold and temperate climates.
Free Cooling. Energy Saving.
Free Cooling uses the external air to cool the fluid and may entirely replace the cooling circuit, enabling the compressors to be switched off.
The STULZ Explorer range in particular
WPAmini: The maximized surface of the FreeCooling coils enables the WPAmini to switchover into the Mix- or FC-mode very early. The chiller operating in Mix- or FC-mode reduces the compressor runtimes and thereby reduces the energy consumption to a minimum.
WPA: The Free Cooling circuit of the WPA Explorer comprises copper-aluminum heat exchangers. A 3-way valve controlled by the STULZ SEC.blue controller ensures maximum performance and minimizes the operating time of the compressors.
The operating times of the compressors can be minimized by the use of a Free Cooling circuit.
WSA: The Free Cooling circuit of the WSA Explorer comprises copper-aluminum heat exchangers. Two 2-way valves controlled by the STULZ SEC.blue controller regulate the flow of the chilled water through the Free Cooling coil.
Operating costs can be reduced by use of the 2-way valves due to comparatively low pressure drops in the chilled water circuit. In addition, operating times and compressor utilization can be minimized by use of a Free Cooling circuit.
And what about you?
The interaction of compressor cooling and free cooling is directly dependent on factors such as installation location, cold water temperature and temperature spread and is therefore decisive for efficient operation. Try out which parts of the compressor, mixed and free cooling mode are used at your installation site:
- Select the desired location.
- Set the temperatures at the cold water inlet and outlet to the desired values.
- The switch-over points of the operating modes adapt dynamically to your settings.