IMPPUMPS NMT(D) MAX Montage- Und Betriebsanleitung Seite 38

5.2.1 TWIN PUMP OPERATION
Twin pump has double hydraulic housing with integrated check valve, which automaticly turns based on medium
flow, and two separated motors. Pumps communicate with each other through Ethernet connection (only available
on MAX C). Night mode is not recommended in this mode of operation.
Pumps can operate in several different modes, switching betweend the pumps is done by the communications
module:
- Alternating operation [default setting] – One pump is operating while the other one is on standby. Pumps
switch their role every 24 hours or when an error occurs on one pump.
- Backup operation – One pump operates constantly and the other one is on standby. If an error occurs on
the operating pump the one on standby will automaticly start working. This mode can be set up by turning
off the pump that we wish to be on standby. That is done by holding the button for 5 seconds.
- Parallel operation – Both pumps work at the same time with the same settings of constant pressure. This
mode is used when greater flow than one single pump can output is needed. When the first pump hits its
flow limit the second one turns on and compliments the first to reach desired flow.
This mode is activated when we set both pumps to constant pressure mode.
On NMT(D) MAX pumps the switching is done by the user.
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