Alfa Laval Micro Instructions D'installation, D'entretien Et D'utilisation page 49

16 Pump settings and pump performance
The Micro STC is equipped with
16.1 Grundfos Alpha2L settings
Picture 35
Settings
Pump curve
PP1 Lowest proportional
pressure curve
PP2 Highest proportional
pressure curve
CP1 Lowest constant
pressure curve
CP2
Highest constant
pressure curve
III Speed III
II Speed II
I Speed I
All manuals and user guides at all-guides.com
a Grundfos Alpha2L pump.
Function
The duty point of the pump will move up or down on the lowest
proportional-pressure curve, depending on the heating demand.
The head (pressure) is reduced at falling heating demand and
increased at rising heating demand.
The duty point of the pump will move up or down on the highest
proportional-pressure curve, depending on the heating demand.
The head (pressure) is reduced at falling heating demand and
increased at rising heating demand.
The duty point of the pump will move out or in on the lowest
constant-pressure curve, depending on the heating demand in the
system. The head (pressure) is kept constant, irrespective of the
heating demand.
The duty point of the pump will move out or in on the highest
constant-pressure curve, depending on the heating demand in the
system. The head (pressure) is kept constant, irrespective of the
heating demand.
ALPHA2 L runs at a constant speed and consequently on a
constant curve. In speed III, the pump is set to run on the max.
curve under all operating conditions. Quick venting of the pump can
be obtained by setting the pump to speed III for a short period.
ALPHA2 L runs at a constant speed and consequently on a
constant curve. In speed II, the pump is set to run on the medium
curve under all operating conditions.
ALPHA2 L runs at a constant speed and consequently on a
constant curve. In speed I, the pump is set to run on the min. curve
under all operating conditions.
47
Alfa Laval Micro
Installation, service and operating instruction