TECHNICAL INFORMATION
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11.2.5 COMBINED OPERATION OF TWO HEAT PUMPS (CASCADE CONNECTION)
Fig. 14 Two heat pumps (cascade connection) with unmixed and mixed heating circuits, buffer tank and external hot water heater.
For explanations to the system solutions ( 11.2.1).
The particle filter [E21.V101] is installed horizontally in
the return heating pipe to the heat pump,
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