Grundfos UPMO Series User Manual

The AUTO
ADAPT
algorithm
The objective of the AUTO
ADAPT
algorithm is to measure
and analyse the heating system during operation and
adapt to the current heating pattern. The system adapts to
night vs. day operations, summer vs. winter season, and
heat losses or gains affecting room temperature, for
example, from radiators, walls and windows, sun
radiation, electrical equipment, and people.
AUTO
ADAPT
three-step task
A
B
C
TM075966
The AUTO
ADAPT
three-step task
Pos. Description
A System analyser
B Curve selector
C Proportional or constant pressure control
Basically, AUTO
ADAPT
optimises the position of the
proportional or constant pressure curve via a three-step
task as illustrated in the figure above.
The "system analyser" analyses the heating system,
which the pump is a part of. On the basis of the analysis,
AUTO
ADAPT
verifies whether the pump pressure is too
high, too low, or correct. The "curve selector" then uses
this knowledge to select the optimum proportional or
constant pressure curve for the pump. Finally, the pump is
controlled according to the selected proportional or
constant pressure curve by means of the "Proportional
Pressure or Constant Pressure control". The pump will
continue this cycle as long as the pump is running.
Example
This example shows proportional pressure AUTO
ADAPT
.
Note: The constant pressure AUTO
ADAPT
function acts
accordingly just by utilising constant pressure control, and
not proportional pressure control as shown in the example
below.
The AUTO
ADAPT
function can operate and adjust pump
speed according to the duty point within a specific area.
The arrow shows pump max. curve.
TM060848
Proportional pressure AUTO
ADAPT
operation area
As default the AUTO
ADAPT
is preset to operate the pump
on the middle proportional pressure curve. By the use of
an immediate acting PI-controlling function, the pump will
adapt to the system on this proportional pressure curve.
Note: The PI controller is set to eliminate any offset within
a time frame of 120 seconds.
H
Q
TM060851
Proportional pressure control
UPM3
8
32
Control modes, operating panel and settings

Grundfos UPMO Series Specifications

General

Brand	Grundfos
Model	UPMO Series
Category	Water Pump
Language	English