Pumps
P1
P2
Pumps
P1
P2
Attention: If DIP SWITCH configuration is used, the differential restarting pressure is calculated as
SP * DP. If the set point is 4 bar and DP is 50%, the restarting pressure RP is 2 bar.
The names pump P1 and P2 are only indicative. If exchange mode is activated, the pumps P1 and
P2 are alternated as specified in the exchange mode.
The two pumps will always be started alternately with a minimum interval of 2 seconds from each
other.
Example of Regulation with Standard expansion vessel and Regulation with additional expansion vessel:
SP= 4 bar
RP = 2 bar Attention: if DP is set (with the trimmers) RP=SP*DP
Pressure boosting operation standard vessel < 100 litres
Start
System pressure <= SP
System pressure <= SP – RP
Table 12: Pressure boosting operation standard vessel < 100 litres
Operation with additional expansion vessel > 100 litres
Start
System pressure <= SP
System pressure <= SP – 2%
Table 13: Operation with additional expansion vessel > 100 litres
ENGLISH
System pressure => SP+RP
System pressure => SP+RP
System pressure => SP+RP
System pressure => SP+RP
Figura 54: Regulation with expansion vessel < 100 litres
Figura 55: Regulation with expansion vessel > 100 litres
106
Stop
Stop