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INSTALLER SETTING
ENGLISH
General - Buffer tank hysteresis
If a big buffer tank is connected in parallel to the heat pump, a separate sensor can be connected
to PCB-connector TB_SENSOR/BUFFER sensing the temperature at the top of the tank or at its
outlet pipe.
Consequently, the desired target water temperature (as set by User or defined by weather-
dependent function) is compared to the buffer tank temperature.
Basically, it supports the same set temperature range and cycle operation as the regular water
temperature control function. In addition, a dedicated hysteresis can be set - separate from
existing air or water temperature control hysteresis.
The buffer tank hysteresis is 0 to 20 K (default 2 K), if the desired target temperature is set to
50 ℃, Thermo-on temp. will be 48 ℃ and Thermo-off temp. will be 52 ℃.
NOTE
To use this function, a dedicated accessory (PHBTS0) is required (available from 04/2024).
Buffer tank
PHBTS0
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