Pump Pa Modulation; Pump Pa Operating Mode; Pump Pb Cut-In Temperature Differential; Pump Pb Cut-Out Temperature Differential - Bosch Worcester TDS 300 Installation And Operating Instructions Manual

9.5.13 Pump PA modulation

Menu: Expert menu > Settings > A: 2nd collector array > PA pump modulation
This setting determines the minimum speed of the pump for the 2nd collector array.
Setting range
30 - 100 %

9.5.14 Pump PA operating mode

Menu: Expert menu > Settings > A: 2nd collector array > PA pump operating mode
In Auto mode, the connected pump runs whenever the conditions for switching on are met.
Selecting the option On switches the pump on.
Selecting the option Off deactivates the pump.
Setting range
Auto, On, Off

9.5.15 Pump PB cut-in temperature differential

Menu: Expert menu > Settings > B: Recharge system > PB pump switch-on temp. differential
If the set cut-in temperature differential (ΔT) is reached and all conditions for switching on are met,
pump PB starts up.
The minimum difference from the cut-out temperature differential is 3 K.
Setting range
7 -20 K

9.5.16 Pump PB cut-out temperature differential

Menu: Expert menu > Settings > B: Recharge system > PB pump switch-off temp. differential
If the temperature differential drops below the set cut-out temperature differential (ΔT), pump PB is
switched off.
The minimum difference from the cut-in temperature differential is 3 K.
Setting range
4-17 K
Default setting
50 %
Default setting
Auto
Default setting
8 K
Default setting
4 K
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