Pump Sp Cut-Out Temperature Differential; Maximum Collector Temperature; Minimum Collector Temperature - Bosch Worcester TDS 300 Installation And Operating Instructions Manual

9.5.2 Pump SP cut-out temperature differential

Menu: Expert menu > Settings > 1: Standard system > SP pump switch-off temp. differential
If the temperature differential between the bottom of the solar cylinder and the collector array drops
below the set cut-out temperature differential (ΔT) , the solar system pump switches off.
The minimum difference from the pump SP cut-in temperature differential is 3 K.
Setting range
4-17 K

9.5.3 Maximum collector temperature

Menu: Expert menu > Settings > 1: Standard system > Maximum collector temperature
If the maximum collector temperature is exceeded, the solar system pump is switched off or not
switched on.
Setting range
100 - 140 °C

9.5.4 Minimum collector temperature

Menu: Expert menu > Settings > 1: Standard system > Minimum collector temperature
If the temperature falls below the minimum collector temperature, the solar system pump does not cut
in even if the other conditions for switching on are satisfied.
Setting range
10 - 80 °C
Default setting
4 K
Default setting
120 °C
Default setting
20 °C
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