Advertenties
Beschikbare talen
Beschikbare talen
P1
P2
The first pump starts when the pressure falls below the Set Point and it stops when it reaches the Set Point pressure +
•
differential restarting pressure.
•
The second pump starts when the pressure falls below the Set Point minus half the differential restarting pressure, or 2% of
the Set Point if vessels over 100 litres are used. It stops when the pressure in the system reaches the Set Point pressure +
differential restarting pressure.
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 indications 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
Figura 17: Regulation with expansion vessel < 100 litres
System pressure <= SP
System pressure <= SP – 2%
Table 4: Operation with additional expansion vessel > 100 litres
ENGLISH
System pressure => SP+RP
System pressure => SP+RP
Figura 18: Regulation with expansion vessel > 100 litres
78
Advertenties
