Grundfos UPM3 Manuale utente

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UPM3 HYBRID 25-70 130

Installation and Operation Manual

Grundfos UPM3 HYBRID 25-70 130 mm Pump

UPM3 HYBRID 25-70 130 mm Pump

Design

Wet-running circulation pump with G 6/4” M connection.

Electrical Data

Power supply 230 V, 50 Hz

Power consumption (min./max.) 2/52W

Current (min./max.) 0.04/0.52 A

IP rating IP44

Max. speed 5766 rpm

Weighted average power ≤ 25 W

Energy Efficiency Index ≤ 0.20 by EN 16 297/3

Motor protection not needed

Minimum pressure at pump suction port

Minimum pressure at suction port

to avoid cavitation

0.5 mH2O at 75 °C

5.0 mH2O at 95 °C

10.8 mH2O at 110 °C

Pump Control

The circulation pump can be controlled:

• internally without a PWM signal by selecting a suitable mode and pump performance curve

• by an external PWM A control signal (prole for use in heating systems) or PWM C control

signal (prole for use in solar thermal systems)

Performance Curves

Line type Description

Constant

speed

Proportional

pressure

Constant

pressure

Description of Pump Frofiles

a) INTERNAL CONTROL - Proportional pressure

• Head (pressure): reduced with growing system

pressure drop and increased with sinking system

pressure drop (typically e.g. opening / closing of thermostatic heads)

• Pump operating point: moves up or down on the selected proportional pressure curve

depending on the current system pressure drop.

CONTROL MODE DESCRIPTION

Proportional pressure

I The lowest curve of proportional pressure

II The middle curve of proportional pressure

III The highest curve of proportional pressure

AUTOADAPT

Automatically controls performance in the range from the

highest to the lowest proportional pressure curve

b) INTERNAL CONTROL - Constant pressure

• Head (pressure): kept constant, disregarded

of the system pressure drop

• Pump operating point: moves on the selected constant pressure curve depending on the

current system pressure drop.

CONTROL MODE DESCRIPTION

Constant pressure

I The lowest curve of constant pressure

II The middle curve of constant pressure

III The highest curve of constant pressure

AUTOADAPT

Automatically controls performance in the range from the

highest to the lowest constant pressure curve

c) INTERNAL CONTROL - Constant speed

• The pump runs at constant speed.

• Pump operating point: moves up or down on the selected constant curve depending on the

current system pressure drop.

CONTROL MODE Max. H (upper graph) Max. P1(lower graph)

Constant speed

I 5 m 33 W

II 6 m 39 W

III 7 m 52 W

d) EXTERNAL CONTROL - PWM C (solar)

• The pump runs on a curve of constant speed depending on the current

PWM value.

• The speed will increase with the increase of the PWM value. If PWM equals 0, the pump

stops.

e) EXTERNAL CONTROL - PWM A (heating)

• The pump runs on a curve of constant speed

depending on the current PWM value.

• The speed slows down when the PWM value rises. If PWM equals 0, the pump runs at its

max. speed.

CONTROL MODE Max. H (upper graph)

PWM A

I 5 m

II 6 m

III 7 m

Settings Display

DISPLAY - LED MARKING

The LED marking is further omitted for better

clarity.

DISPLAY CONTROL MODE

green LED NOT FLASHING INTERNAL

1Proportional pressure AUTOADAPT

2Constant pressure AUTOADAPT

Proportional pressure

4II

5III

Constant pressure

7II

8III

Constant speed

10 II

11 III

DISPLAY CONTROL MODE

green LED FLASHING EXTERNAL

12 PWM C

PWM A

14 II

15 III

GREEN LEDS FLASHING

FREQUENCY CONTROL PWM SIGNAL RECEPTION

Not flashing Internal -

1 flash per second External NO

12 flashes per second External YES

WARNING: LEDs may be turned by 90° or 180°, or mirrored, depending on the specific pump type.

When switched on, the pump runs at factory settings or the last setting. The display shows the current

pump performance.

Setting selection

To select your desired setting, press the button repeatedly until you find the setting you need (see the

table above). If you pass the desired setting, you have to go one more round until it appears again. The

order of modes corresponds to the table.

Error display

DISPLAY CONTROL MODE

Seized pump

Too low power supply voltage

Electric fault

Permissible pump positions

Pump wiring

socket for power supply (A)

and signal transmission (B)

power supply (A)

and signal (B) terminals

N (blue)

L (brown)

PE (yellow-green)

PWM GND (blue)

PWM out (black)

PWM in (brown)

Prohibited pump positions

REGULUS spol. s r.o.

E-mail: [email protected]

Web: www.regulus.eu

v1.0-03/2022

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