Cetetherm Mini Plus CM737
Installation, service and operating instruction
27
13.3 Heating circuit pump Grundfos UPM3 Auto L 50-70 130
When the pump is switched on it runs with the factory pre-setting or the last setting.
The pump is pre-set to run with operation mode, proportional pressure mode 2, PP2.
Operation mode indicates with LEDs on the pump front.
1 Push button
2 LEDs
Settings
Pump curve
Function
PP1
Proportional-pressure curve
The head (pressure) is reduced at falling heat demand
and increased at rising heat demand.
The duty point of the pump will move up or down on the
selected proportional-pressure curve, depending on the
heating demand.
PP2
PP3
CP1
Constant-pressure curve
The head (pressure) is kept constant, irrespective of the
heating demand.
The duty point of the pump will move out or in on the selected
constant-pressure curve, depending on the heating demand in
the system.
CP2
CP3
CC1
Constant curve
The circulator runs on a constant curve, which means that it
runs at a constant speed or power.
The duty point of the circulator moves up or down on the
selected constant curve, depending on the heat demand in the
system.
CC2
CC3
CC4
