Grundfos UPS3 Installation and Operating Instructions
1. General Information
These installation and operating instructions describe the Grundfos UPS3 pump. Sections 1-4 provide essential information for safe unpacking, installation, and startup. Sections 5-12 offer important details regarding the product, including service, fault finding, and disposal.
Read this document and the quick guide before installing the product. Installation and operation must comply with local regulations and accepted codes of good practice.
This appliance can be used by children aged 8 years and above, and persons with reduced physical, sensory, or mental capabilities, or lack of experience and knowledge, if they are supervised or instructed on safe use and understand the associated hazards. Children should not play with the appliance. Cleaning and user maintenance should not be performed by children without supervision.
1.1 Hazard Statements
The following symbols and hazard statements may appear in Grundfos installation, safety, and service instructions:
DANGER: Indicates a hazardous situation which, if not avoided, will result in death or serious personal injury.
WARNING: Indicates a hazardous situation which, if not avoided, could result in death or serious personal injury.
CAUTION: Indicates a hazardous situation which, if not avoided, could result in minor or moderate personal injury.
Hazard text structure:
- SIGNAL WORD
- Description of hazard
- Consequence of ignoring the warning.
- Action to avoid the hazard.
1.2 Notes
The following symbols and notes may appear:
- [explosion-proof-symbol]: Observe these instructions for explosion-proof products.
- [action-required-symbol]: A blue or grey circle with a white graphical symbol indicates that an action must be taken.
- [prohibited-action-symbol]: A red or grey circle with a diagonal bar, possibly with a black graphical symbol, indicates that an action must not be taken or must be stopped.
- If these instructions are not observed, it may result in malfunction or damage to the equipment.
- [tip-symbol]: Tips and advice that make the work easier.
2. Receiving the Product
2.1 Inspecting the product
CAUTION: Crushing of feet - Minor or moderate personal injury. Wear safety shoes when opening the box and handling the product.
Verify that the product received matches the order. Check that the product's voltage and frequency match the installation site's voltage and frequency (see section 5.4.1 Nameplate).
2.2 Scope of delivery
The box contains:
- UPS3 pump
- Installer plug
- Two gaskets
- Quick guide
3. Installing the Product
DANGER: Electric shock - Death or serious personal injury. Switch off the power supply before starting any work on the product. Ensure the power supply cannot be accidentally switched on.
CAUTION: Crushing of feet - Minor or moderate personal injury. Wear safety shoes when opening the box and handling the product.
Installation must be carried out by trained persons in accordance with local regulations.
The pump must always be installed with a horizontal motor shaft within ± 5°.
3.1 Mechanical Installation
Mechanical installation must be carried out by trained persons in accordance with local regulations.
3.1.1 Mounting the Product
- The arrows on the pump housing indicate the flow direction through the pump (see Fig. 1).
- Fit the two supplied gaskets when mounting the pump in the pipe. Install the pump with a horizontal motor shaft within ± 5° (see Fig. 2). Refer to section 3.3 Control box positions.
- Tighten the fittings (see Fig. 3).
Fig. 1: Illustration showing an arrow on the pump housing indicating the flow direction.
Fig. 2: Diagram illustrating correct pump installation with a horizontal motor shaft.
Fig. 3: Illustration showing how to tighten the fittings.
3.2 Pump Positions
Always install the pump with a horizontal motor shaft within ± 5°. Do not install the pump with a vertical motor shaft (see Fig. 4, bottom row).
- Pump installed correctly in a vertical pipe (see Fig. 4, top row, left).
- Pump installed correctly in a horizontal pipe (see Fig. 4, top row, right).
Fig. 4: Diagrams illustrating correct and incorrect pump positions in pipes.
3.3 Control Box Positions
DANGER: Electric shock - Death or serious personal injury. Switch off the power supply before starting any work on the product. Ensure the power supply cannot be accidentally switched on.
CAUTION: Hot surface - Minor or moderate personal injury. The pump housing may be hot due to the pumped liquid. Close isolating valves on both sides and wait for the housing to cool down.
CAUTION: Pressurised system - Minor or moderate personal injury. Before dismantling, drain the system or close isolating valves on both sides. The pumped liquid may be scalding hot and under high pressure.
The control box can be mounted in all positions (see Fig. 5).
Fig. 5: Illustrations showing various possible positions for the control box.
3.3.1 Changing the Control Box Position
Steps to change the control box position:
- Ensure inlet and outlet valves are closed. Unscrew the screws on the pump head.
- Turn the pump head to the desired position.
- Refit the screws on the pump head.
3.4 Electrical Connection
DANGER: Electric shock - Death or serious personal injury. All electrical connections must be carried out by a qualified electrician in accordance with local regulations.
DANGER: Electric shock - Death or serious personal injury. Switch off the power supply before starting any work on the product. Ensure the power supply cannot be accidentally switched on.
DANGER: Electric shock - Connect the pump to earth.
DANGER: Electric shock - In case of an insulation fault, the fault current may be pulsating DC. Observe national legislation regarding Residual Current Devices (RCDs).
- The motor requires no external motor protection.
- Check that the supply voltage and frequency match the nameplate specifications (see section 5.4.1 Nameplate).
- Connect the pump to the power supply using the supplied plug (see steps 1 to 7).
3.5 Assembling the Installer Plug
Steps for assembling the installer plug:
- Loosen the cable gland and unscrew the union nut in the terminal cover's center.
- Detach the terminal cover.
- Pull the power cable through the cable gland and terminal cover.
- Strip the cable conductors as illustrated (dimensions: 8 mm strip length, 42 mm overall length, 32 mm from gland to end; conductor size: 0.5-1.5 mm², cable diameter: Ø 5.5-10 mm).
- Loosen the screws on the power supply plug and connect the cable conductors (x3).
- Tighten the screws on the power supply plug (x3).
- Refit the terminal cover (see illustration A). Note: The power supply plug can be turned 90° for cable entry (see illustration B).
- Tighten the union nut.
- Tighten the cable gland onto the power supply plug.
- Insert the power supply plug into the male plug on the pump.
3.6 Insulating the Pump Housing
Heat loss from the pump and pipe can be reduced by insulating the pump housing and pipe with insulating shells (available as accessories, see section 5.5.2 Insulating shells).
Do not insulate the control box or cover the operating panel.
Fig. 6: Diagram showing insulating shells being fitted around the pump housing and pipe.
4. Starting Up the Product
4.1 Before Startup
Do not start the pump until the system is filled with liquid and vented. Ensure the required minimum inlet pressure is available at the pump inlet (see section 10. Technical Data). When using the pump for the first time, the system must be vented (see section 4.3 Venting the Pump). The pump is self-venting through the system.
4.2 Starting Up the Pump
- Open the inlet and outlet valves.
- Switch on the power supply.
- The lights on the operating panel indicate that the power supply is on and the pump is running.
4.3 Venting the Pump
Small air pockets trapped inside the pump may cause noise during startup. This noise will cease over time as the pump is self-venting.
To speed up the venting process:
- Set the pump to speed III using the button on the operating panel.
- Let the pump run for a minimum of 30 minutes. Venting speed depends on the system size and design.
Once the noise has ceased (indicating the pump is vented), set the pump according to recommendations in section 6. Control Functions.
The pump must not run dry.
The pump is factory-set to constant curve III.
Fig. 7: Illustration of the operating panel and a timer indicating a minimum 30-minute run time for venting.
5. Product Introduction
5.1 Product Description
The UPS3 can be used as a stand-alone or integrated circulator pump in existing systems as a replacement, or in new systems with variable or constant flow rates. Speed can be controlled via a low-voltage PWM signal. High-efficiency ECM pumps like the UPS3 must not be speed-controlled by external controllers varying or pulsing the supply voltage.
5.1.1 Model Type
These instructions cover the UPS3. The model type is stated on the packaging and nameplate.
5.2 Applications
The UPS3 is designed for circulating liquids in all heating systems. It is suitable for:
- Systems with constant or variable flows where optimizing the pump duty point is desirable.
- Installation in existing systems where the pump's differential pressure is too high during periods of reduced flow demand.
- Installation in new systems for automatic performance adjustment to flow demands, without needing bypass valves or similar components.
5.3 Pumped Liquids
CAUTION: Flammable material - Minor or moderate personal injury. Do not use for flammable liquids like diesel oil or petrol.
CAUTION: Corrosive substance - Minor or moderate personal injury. Do not use for aggressive liquids like acids or seawater.
The pump is suitable for clean, thin, non-aggressive, and non-explosive liquids without solid particles, fibers, or mineral oil. For heating systems, water quality must meet accepted standards (e.g., German guideline VDI 2035). Mixtures with antifreeze media like glycol are suitable if their kinematic viscosity is below 10 mm²/s (10 cSt). Higher viscosity may reduce hydraulic performance.
5.4 Identification
5.4.1 Nameplate
Fig. 8: Diagram of the pump's nameplate, showing various labels and their corresponding positions (1-23).
| Pos. | Description |
|---|---|
| 1 | Pump name |
| 2 | Minimum current [A] |
| 3 | Maximum current [A] |
| 4 | CE mark and approvals |
| 5 | Energy Efficiency Index, EEI |
| 6 | Voltage [V] |
| 7 | Average power input PL, avg (Ecodesign regulation) |
| 8 | Model designation |
| 9 | Product number |
| 10 | Serial number |
| 11 | Country of origin |
| 12 | Frequency [Hz] |
| 13 | Part, according to EEI |
| 14 | Enclosure class |
| 15 | Manufacturer's name and address |
| 16 | Production code: 1st and 2nd figures: Production site code; 3rd and 4th figures: year; 5th and 6th figures: week |
| 17 | Minimum liquid temperature |
| 18 | Product mark (legal product code) |
| 19 | TF class |
| 20 | Crossed-out wheeled bin according to EN 50419 |
| 21 | Maximum system pressure |
| 22 | Maximum input power [W] |
| 23 | Minimum input power [W] |
5.4.2 Type Key
Example: UPS3 15 50/65 130
- Pump type
- Nominal diameter (DN) of inlet and outlet ports [mm]
- Maximum head [dm]
- [ ]: Cast-iron pump housing
- Port-to-port length [mm]
5.5 Accessories
5.5.1 Unions and Valve Kits
Product numbers for unions:
| UPS3 Connection | Union nut with internal threads | Union nut with external threads | |
|---|---|---|---|
| 3/4 | |||
| G 1 1/2 | 529921 | ||
| 1 | 529922 | ||
| 1 1/4 | 529821 | 529925 | 529924 |
Note: Product numbers are for complete sets including gaskets. Product numbers for standard sizes are in bold.
G-threads are cylindrical (EN ISO 228-1) and require a flat gasket for sealing. Male G-threads screw into female G-threads. G-threads are standard on the pump housing.
R-threads are tapered external threads (EN 10226-1).
Rc- or Rp-threads are internal threads (tapered or parallel). Male R-threads (conical) screw into female Rc- or Rp-threads (see Fig. 9).
Fig. 9: Diagrams illustrating G-threads and R-threads.
5.5.2 Insulating Shells
The accessory set is tailored to the pump type. Insulating shells enclose the pump housing and pipe and are easy to fit.
| Pump type | Product number |
|---|---|
| UPS3 15-50/65 | 99270706 |
5.5.3 Cables and Plugs
The pump has two electrical connections: power supply and control signal. The installer plug is supplied with the pump and is available as an accessory. Power cable adapters are also available.
The control signal cable has three conductors: signal input, signal output, and signal reference. Connect the cable to the control box using a mini superseal plug (see section 7.1). The optional signal cable is an accessory; its length must not exceed 3 meters.
Fig. 10: Image of a mini superseal plug.
| Conductor | Colour |
|---|---|
| Signal input | Brown |
| Signal reference | Blue |
| Signal output | Black |
| Product | Product description | Length [mm] | Product number |
|---|---|---|---|
| Installer plug | 99439948 | ||
| Mini superseal signal cable (PWM input signal) | 2000 | 99165309 | |
| Superseal power cable | 2000 | 99198990 | |
| Power cable adapter: Superseal Molex cable adapter, overmoulded | 150 | 99165311 | |
| Power cable adapter: Superseal Volex cable adapter, overmoulded | 150 | 99165312 |
6. Control Functions
6.1 Operating Panel
The pump is factory-set to constant curve III.
Fig. 11: Image of the UPS3 operating panel showing buttons and LEDs.
| Symbol | Description |
|---|---|
| I, II, III | Button: Constant curve or constant speed curve I, II and III |
| Proportional-pressure mode I, II | |
| Constant-pressure mode, I, II |
The operating panel displays:
- The control mode (after pressing the button).
- Alarm status.
6.1.1 Alarm or Warning
If the pump detects an alarm or warning, the first LED turns red. Once the fault is resolved, the operating panel returns to operating status. See section 9. Fault Finding the Product.
6.2 Control Modes
The pump offers seven different control modes:
6.2.1 Constant Curve or Constant Speed, I, II or III (Factory Setting)
In this mode, the pump runs at a constant speed and curve. Performance follows the selected curve (I, II, or III). See Fig. 14 for curve II selection.
Fig. 12: Graph illustrating constant curve/speed.
The choice of constant curve/speed setting depends on the heating system's characteristics.
| System type | Recommended control mode | Alternative control mode |
|---|---|---|
| One-pipe heating system | Constant-pressure mode. See section 6.2.3 Constant pressure I, II. | Constant curve or constant speed, I, II or III. |
6.2.2 Proportional Pressure I, II
In this mode, pump performance follows the selected curve (I or II) and adjusts to the system's heat demand according to the proportional-pressure curve.
Fig. 13: Graph illustrating a proportional-pressure curve.
| System type | Recommended control mode | Alternative control mode |
|---|---|---|
| Two-pipe system | Proportional-pressure mode* | Constant curve or constant speed I, II, III (see section 6.2.1). |
*Proportional pressure mode is not recommended for heating systems with automatic bypass valves to ensure minimum flow for heating appliances.
6.2.3 Constant Pressure I, II
In this mode, pump performance follows the selected constant-pressure curve (I or II) and adjusts to the system's heat demand.
Fig. 14: Graph illustrating a constant-pressure curve.
| System type | Recommended control mode | Alternative control mode |
|---|---|---|
| Underfloor heating system | Constant-pressure mode | Constant curve or constant speed I, II, III (see section 6.2.1). |
6.2.4 Changing from Recommended to Alternative Pump Setting
Heating systems are slow to reach optimum operation. If the recommended setting does not provide desired heat distribution, change to the alternative setting.
6.2.5 Selecting the Control Modes
- Proportional Pressure: Recommended for variable flow systems with relatively large pressure losses in distribution pipes (e.g., two-pipe systems with thermostatic valves and long pipes, or primary circuit pumps with high pressure losses). Not recommended with automatic bypass valves.
- Constant Pressure: Recommended for variable flow systems with relatively small pressure losses (e.g., two-pipe systems with thermostatic valves, one-pipe systems, underfloor heating, or primary circuit pumps with low pressure losses).
- Constant Curve: Recommended for constant-flow systems requiring constant flow rate and head (e.g., heat surfaces, replacement for uncontrolled circulator pumps).
6.3 Control Signal
The pump can be controlled via a digital low-voltage pulse-width modulation (PWM) signal. The square-wave PWM signal operates within a 100 to 4,000 Hz frequency range and is used for speed selection and feedback. The feedback signal frequency is fixed at 75 Hz.
For connection instructions, see section 7.1 Setting the PWM Input Signal.
Duty cycle formula: d % = 100 x t/T
Example parameters: T = 2 ms (500 Hz), t = 0.6 ms, Duty cycle = 30%. Rating: UiH = 4-24 V, UiL ≤ 1 V, IiH ≤ 10 mA.
Fig. 15: Diagram illustrating PWM signal parameters.
| Abbreviation | Description |
|---|---|
| T | Period of time [sec.] |
| d | Duty cycle [t/T] |
| UiH | High-level input voltage |
| UiL | Low-level input voltage |
| IiH | High-level input current |
6.3.1 Interface
The pump's interface connects the external control signal to the circulator pump's microprocessor. It translates the external signal and ensures user safety by providing galvanic isolation, preventing contact with dangerous voltage.
Note: "Signal ref." is a signal reference with no connection to protective earth.
Fig. 16: Schematic drawing of the pump's interface, showing galvanic isolation.
6.3.2 PWM Input Signal Profile A (Heating)
The pump operates on constant-speed curves based on the PWM input signal; speed decreases as the PWM value increases. A zero PWM signal (0 VDC) reverts the pump to the previously selected control mode.
Fig. 17: Graph showing the PWM input signal profile for heating, mapping signal percentage to speed.
| PWM input signal [%] | Pump status |
|---|---|
| ≤ 10 | Maximum speed: max. |
| > 10 / ≤ 84 | Variable speed: min. to max. |
| > 84 / ≤ 91 | Minimum speed: IN |
| > 91 / 95 | Hysteresis area: on/off |
| > 95 or ≤ 100 | Standby mode: off |
6.3.3 PWM Feedback Signal
The PWM feedback signal provides pump information, similar to bus systems, including current power consumption (accuracy ± 2%), warnings, and alarms.
Alarms are indicated by specific PWM output signals. If supply voltage drops below a specified range, the output signal is set to 75%. If the rotor is locked (e.g., by deposits), the output signal is set to 90% due to higher priority (see Fig. 18).
Fig. 18: Graph showing PWM feedback signal for power consumption, indicating alarm statuses.
| Data | Symbol | Value |
|---|---|---|
| PWM frequency input with high-speed optocoupler | f | 100-4000 Hz |
| Guaranteed standby power consumption | < 1 W | |
| Rated input voltage - high level | UiH | 4-24 V |
| Rated input voltage - low level | UiL | < 1 V |
| High-level input current | IiH | < 10 mA |
| Input duty cycle | PWM | 0-100% |
| PWM frequency output, open collector | f | 75 Hz ± 5% |
| Accuracy of output signal regarding power consumption | ± 2% (of PWM signal) | |
| Output duty cycle | PWM | 0-100% |
| Collector emitter breakdown voltage on output transistor | Uc | < 70 V |
| Collector current on output transistor | Ic | < 50 mA |
| Maximum power dissipation on output resistor | PR | 125 mW |
| Zener diode working voltage | Uz | 36 V |
| Maximum power dissipation in Zener diode | Pz | 300 mW |
6.4 Pump Performance
Figure 19 illustrates the relationship between pump setting and performance via curves.
Fig. 19: Graph showing pump settings (I, II, III, Proportional-pressure, Constant-pressure) in relation to pump performance (H-Q curves).
| Setting | Pump curve | Function |
|---|---|---|
| I | Constant curve or constant speed I | The pump runs at a constant speed and curve. At speed I, it operates on the minimum curve under all conditions. |
| II | Constant curve or constant speed II | The pump runs at a constant speed and curve. At speed II, it operates on the intermediate curve under all conditions. |
| III | Constant curve or constant speed III (factory setting) | The pump runs at a constant speed and curve. At speed III, it operates on the maximum curve under all conditions. Quick venting is achieved by setting to speed III briefly. |
| Proportional-pressure mode I, II | The duty point shifts on a proportional-pressure curve based on heat demand. Head decreases with falling demand and increases with rising demand. | |
| Constant-pressure mode I, II | The duty point shifts on a constant-pressure curve based on heat demand. Head remains constant regardless of heat demand. |
7. Setting the Product
Use the button on the operating panel to set the product. Each press changes the pump setting, indicated by LEDs. Refer to section 6.2 Control Modes for details.
To select proportional-pressure or constant-pressure curves, press and hold the button for 3 seconds. To return to constant-curve settings, press and hold the button for 3 seconds.
Control Modes for Constant Curve
| Display | Control mode |
|---|---|
| Constant curve 1 | |
| Constant curve 2 | |
| Constant curve 3 | |
| LED flashes | PWM profile A |
Control Modes for Proportional-Pressure and Constant-Pressure Curve
| Display | Control mode |
|---|---|
| LEDs flash | Proportional pressure 1 |
| LEDs flash | Proportional pressure 2 |
| LEDs flash | Constant pressure 1 |
| LEDs flash | Constant pressure 2 |
The pump is factory set to constant curve III.
7.1 Setting the PWM Input Signal
To enable external control (PWM profile A), connect a signal cable to an external system. The cable has three conductors: signal input, signal output, and signal reference. Connect via a mini superseal plug (see Fig. 20).
The cable is not supplied with the pump but can be ordered as an accessory.
Fig. 20: Image of a mini superseal plug.
Set the Signal Connection
- Ensure the pump is turned off.
- Locate the PWM signal connection on the pump. The pins are not energized.
- Connect the signal cable with the mini superseal plug.
- Switch on the power supply.
- The pump automatically detects a valid PWM signal and enables the control mode. If no PWM signal is detected or the signal is 0, the pump reverts to the previously selected control mode.
Fig. 21: Diagram showing the connection of the signal cable to the UPS3, including voltage information (1 x 230 V).
8. Servicing the Product
DANGER: Electric shock - Death or serious personal injury. All electrical connections must be carried out by a qualified electrician in accordance with local regulations.
DANGER: Electric shock - Death or serious personal injury. Switch off the power supply before starting any work on the product. Ensure the power supply cannot be accidentally switched on.
CAUTION: Hot surface - Minor or moderate personal injury. The pump housing may be hot due to the pumped liquid. Close isolating valves on both sides and wait for the housing to cool down.
CAUTION: Pressurised system - Minor or moderate personal injury. Before dismantling, drain the system or close isolating valves on both sides. The pumped liquid may be scalding hot and under high pressure.
All service must be carried out by an instructed service technician.
8.1 Dismantling the Product
- Switch off the power supply.
- Pull out the plug (see section 8.2 Dismantling the Plug for instructions).
- Close the two isolating valves on both sides of the pump.
- Loosen the fittings.
- Remove the pump from the system.
8.2 Dismantling the Plug
- Loosen the cable gland and unscrew the union nut in the terminal cover's center.
- Detach the terminal cover.
- Loosen the screws on the power supply plug and disconnect the cable conductors.
- Pull the power cable back through the cable gland and terminal cover.
9. Fault Finding the Product
If the pump detects an alarm, the first LED turns red. LEDs indicate the alarm type (see Fig. 22). If multiple alarms occur, only the highest priority error is shown. When no alarm is active, the operating panel returns to normal status.
DANGER: Electric shock - Death or serious personal injury. Switch off the power supply before starting any work on the product. Ensure the power supply cannot be accidentally switched on.
| Display | Status | Solution |
|---|---|---|
| Alarm | The pump stops. The pump is blocked. | Deblock the shaft. See section 9.1 Deblocking the shaft. |
| Warning | The pump keeps running. The supply voltage is low. | Ensure sufficient voltage supply to the pump. |
| Alarm | The pump stops. Electrical error. | Replace the pump and return it to the supplier. |
Fig. 22: Fault finding table showing display indicators, status, and solutions.
9.1 Deblocking the Shaft
If the pump is blocked, the shaft must be deblocked. The deblocking device is accessible from the front without removing the control box. It is designed to deblock pumps seized by lime, for example, after summer shutdown.
Course of Action:
- Switch off the power supply.
- Close the valves.
- Locate the deblocking screw in the center of the control box. Use a size 2 Phillips star screwdriver to push the screw inwards.
- When the screw turns counterclockwise, the shaft is deblocked. Repeat step 3 if necessary.
- Switch on the power supply.
The deblocking device should remain tight and must not release any water during or after the process.
Fig. 23: Diagram illustrating the deblocking screw and screwdriver usage.
10. Technical Data
Operating Conditions
| Sound pressure level | Lower than 32 dB(A). |
| Relative humidity | Maximum 95%, non-condensing. |
| System pressure | PN 10: Maximum 1.0 MPa (10 bar). |
| Inlet pressure | 75 °C |
| Maximum inlet pressure | 95 °C |
| Ambient temperature | 1 MPa (10 bar) |
| Liquid temperature | 0-55 °C |
| Liquid | 2-95 °C |
| Viscosity | Maximum water/propylene glycol mixture is 50%. Maximum 10 mm²/s. |
| Maximum altitude of installation | 2000 m above sea level. |
Electrical Data
| Supply voltage | 1 x 230 V -15%/+10%, 50/60 Hz, PE. |
| Insulation class | F |
| Standby power consumption | < 1 W |
| Inrush current | < 4 A |
| Minimum switching time power on/off | No specific requirements. |
Miscellaneous Data
| Motor protection | The pump requires no external motor protection. |
| Enclosure class | IPX4D |
| Temperature class (TF) | TF95 |
| Specific EEI values | UPS3 15-50/65: EEI ≤ 0.20 |
To avoid condensation in the stator, the liquid temperature must always be higher than the ambient temperature.
Reduced Supply Voltage
The pump operates above 160 VAC with reduced performance. A low-voltage warning is sent via the PWM signal if voltage drops below 190 VAC. If voltage falls below 150 VAC, the pump stops and shows an alarm.
10.1 Dimensions, UPS3 15-50/65
Fig. 24: Diagram showing UPS3 dimensions with labels.
| Pump type | L | L3 | L4 | B1 | B2 | B3 | B4 | H1 | H2 | H3 | H4 | G |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UPS3 15-50/65 | 130 | 89 | 45 | 54 | 54 | 64 | 47 | 25 | 102 | 47 | 149 | G 1 1/2 |
11. Performance Curves
Each pump has its own performance curve, accompanied by a power curve (P1) showing power consumption at a given performance.
11.1 Curve Conditions
The following apply to the performance curves:
- Test liquid: airless water.
- Curves are based on a density of ρ = 983.2 kg/m³ and a liquid temperature of 60 °C.
- Curves show average values; individual measurements are needed for specific minimum performance guarantees.
- Curves for speeds I, II, and III are marked.
- Curves apply to a kinematic viscosity of ν = 0.474 mm²/s (0.474 cSt).
- EEI values are obtained according to EN 16297 part 3.
11.2 Performance Curve, UPS3 15-50/65
Graphs showing H-Q (Head-Flow) and P1-Q (Power-Flow) performance curves for the UPS3 15-50/65 pump.
| Setting | P1 [W] | I1 [A] |
|---|---|---|
| Min. | 4 | 0.05 |
| Max. | 60 | 0.52 |
12. Disposing of the Product
Dispose of this product or its parts in an environmentally sound manner:
- Use the public or private waste collection service.
- If not possible, contact your supplier.
The [crossed-out-wheelie-bin-symbol] on a product indicates it must be disposed of separately from household waste. Take it to a designated collection point for recycling to protect the environment and human health.
See also end-of-life information at www.grundfos.com/product-recycling.
