GRUNDFOS UPM3 HYBRID 25-70 130mm Pump User Manual

UPM3 HYBRID 25-70 130
Installation and Operation Manual
Grundfos 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 mH₂ O at 75 °C
5.0 mH₂ O at 95 °C
10.8 mH₂ O 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 (profile for use in heating systems) or PWM C control signal (profile for use in solar thermal systems)

Performance Curves

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.

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.

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.

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.

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
1| | Proportional pressure AUTO ADAPT
2| | Constant pressure AUTO ADAPT
3| | Proportional pressure| I
4| | II
5| | III
6| | Constant pressure| I
7| | II
8| | III
9| | Constant speed| I
10| | II
11| | III
12| | PWM C
13| | PWM A| I
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

Prohibited pump positions Permissible pump positions

Pump wiring

©2022 We reserve the right to errors, changes and improvements without prior notice.
v1.0-03/2022
REGULUS spol. s r.o.
E-mail: sales@regulus.eu
Web: www.regulus.euwww.regulus.eu

References

• Specialist global în domeniul energiei alternative - Regulus Romtherm

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