Grundfos CONTROL MPC Installation And Operating Instructions Manual page 8

The example below is based on a circulation system.
Control MPC Series 2000
Control MPC with three E-pumps.
One E-pump in operation.
H
H
set
Three E-pumps in operation.
H
H
set
• Control MPC Series 2000 maintains a
constant pressure through adjustment of
the speed of the pumps connected.
• The performance is adjusted to the demand
through cutting in/out the required number
of pumps and through parallel control of the
pumps in operation.
• Pump changeover is automatic and
depends on load, operating hours and fault.
• All pumps in operation will run at equal
speed.
• The number of pumps in operation is also
depending on the energy consumption of
the pumps. If only one pump is required,
the Control MPC will run with two pumps in
operation at a lower speed if this results in
a lower energy consumption. This requires
that the differential pressure of the pump is
measured.
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Q
Q