Grundfos UPM3S Series User Manual

Control mode explanation
Proportional pressure
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
heat demand in the system.
TM060704
• PP1: lowest proportional pressure curve
• PP2: intermediate proportional pressure curve
• PP3: highest proportional-pressure curve
• AUTO
ADAPT
: highest to lowest proportional pressure
curve.
The AUTO
ADAPT
function enables the pump to control the
pump performance automatically within a defined
performance range.
• Adjusting the pump performance to the size of the
system.
• Adjusting the pump performance to the variations in
load over time.
In Proportional pressure AUTO
ADAPT
, the pump is set to
proportional-pressure control.
Constant pressure
The head (pressure) is kept constant, irrespective of the
heat demand.
The duty point of the pump will move out or in on the
selected constant-pressure curve, depending on the heat
demand in the system.
TM060705
• CP1: lowest constant-pressure curve
• CP2: intermediate constant-pressure curve
• CP3: highest constant-pressure curve
• AUTO
ADAPT
: highest to lowest constant-pressure
curve.
The AUTO
ADAPT
function enables the pump to control the
pump performance automatically within a defined
performance range.
• Adjusting the pump performance to the size of the
system.
• Adjusting the pump performance to the variations in
load over time.
In constant pressure AUTO
ADAPT
, the pump is set to
constant-pressure control.
Constant curve
The pump runs on a constant curve, which means that it
runs at a constant speed or power.
The duty point of the pump moves up or down on the
selected constant curve, depending on the heat demand
in the system.
TM060805
Head [m]
UPM3
XX-20
UPM3
XX-50
UPM3
XX-70
UPM3
XX-75
UPM3
XX-105
UPM3
XX-145
CC1 1.0 3 5 5 6.5 8.5
CC2 1.5 4 6 6 8.5 10.5
CC3
(max.)
2 5 7 7.5 10.5 14.5
PWM A profile (heating)
The pump runs on constant speed curves depending on
the current PWM value.
The speed decreases when the PWM value increases. If
PWM equals 0, the pump runs at maximum speed.
TM060706
Head [m]
PWM
profile
UPM3 XX-20 UPM3 XX-50 UPM3 XX-70 UPM3 XX-75
A1 1.0 3 5 5
A2 1.5 4 6 6
A3 (max.) 2.0 5 7 7.5
MAX UPM3 XX-20 UPM3 XX-50 UPM3 XX-70 UPM3 XX-75
A1 1.0 3 5 5
A2 1.5 4 6 6
A3 2.0 5 7 7.5
PWM C profile (solar)
The pump runs on constant speed curves depending on
the current PWM value.
Speed will increase with increasing PWM value. If PWM
equals 0, the pump stops.
TM060707
Head [m]
PWM
profile
UPM3
XX-50
UPM3
XX-70
UPM3
XX-75
UPM3
XX-105
UPM3
XX-145
C1 3 5 5 6.5 8.5
C2 4 6 6 8.5 10.5
C3
(max.)
5 7 7.5 10.5 14.5
UPM3
8
30
Control modes, operating panel and settings

Grundfos UPM3S Series Specifications

General

Brand	Grundfos
Model	UPM3S Series
Category	Water Pump
Language	English