2.2 Intended use CAUTION Indicates a hazardous situation which, if not avoided, The Hydro Multi-E system is a range of factory-assembled systems could result in minor or moderate personal injury. ready for installation and operation. The system maintains a constant pressure through continuous The hazard statements are structured in the following way: variable adjustment of the speed of the connected pumps.
2.3 Identification 2.3.1 Nameplate Nameplate Pos. Description Company address Product type Product number and Serial number Code for model Mains supply Maximum operating pressure Liquid temperature Barcode Production code Nominal flow rate and maximum flow rate Normal head and max head Technical documents IP class Weight...
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2.3.2 Type key Example: Hydro Multi-E 2 CRIE 15-3 U7 A-A-A-A-ABC Code Explanation Designation Hydro Multi Name E: All pumps with E-motor System type Number of main pumps CRIE 15-3 Pump type U1: 3 × 380-415 V, N, PE, 50/60 Hz U2: 3 ×...
When lifting the product, the lifting point must always be above the centre of gravity to ensure stability. The CRE pump with a C-profile base frame in the Hydro Multi-E system has eyebolts for lifting the system. See the figure below.
4.1 Location Observe the following to ensure adequate cooling of motor and electronics: • Position Hydro Multi-E in such a way that adequate cooling is ensured. See section Ensuring motor cooling. • The ambient temperature must not exceed 40 °C.
All operations must be carried out by a qualified electrician. Example of a mains-connected Hydro Multi-E with backup fuses The system must be stationary and installed and additional protection (applies only for systems with single- permanently.
The descriptions and terminal overviews in this section apply to Systems with single-phase motors both single- and three-phase motors. If Hydro Multi-E is connected to an electric installation where an For maximum torques, see section Torques. earth leakage circuit breaker (ELCB) or ground fault circuit interrupter (GFCI) is used as additional protection, this circuit 4.7.1 Connection terminals, CRE, CRIE and CRNE pumps...
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• two digital inputs or one digital input and one open-collector Normally closed output contact Signal relay 1 • Grundfos Digital Sensor input and output Common (LIVE or PELV) • two signal relay outputs Normally open contact • GENIbus connection.
- Signal relay 2: Ground PELV: The output is galvanically separated from other GDS TX Grundfos Digital Sensor output circuits. Therefore, you can connect the supply voltage or GDS RX Grundfos Digital Sensor input protective extra-low voltage to the output as desired.
5. Optional bus communication via Grundfos CIM modules 5.1 Installing a Communication Interface Module DANGER Electric shock Death or serious personal injury ‐ Switch off the power supply to the motor and to the signal relays. Wait at least five minutes before starting any work on the motor.
5. Fit and tighten the securing screw (A) to 1.3 Nm. 10. If the CIM module is supplied with an FCC label, then place the label on the terminal box. FCC label 11. Fit the terminal box cover (B) and cross-tighten the four mounting screws (A) to 6 Nm.
Installation, proceed as follows: Hydro Multi-E is now in automatic mode and ready for operation. 1. Check that Hydro Multi-E corresponds to the order and that no The standard settings can be changed using Grundfos Go, see single parts have been damaged.
If the power supply is switched off, the settings will be stored. installation described in section Installation, proceed as follows: Related information 1. Check that Hydro Multi-E corresponds to the order and that no 8.1 Standard control panel on the pump single parts have been damaged.
The light fields on the control panel will indicate the setpoint set. Pump in constant-pressure control mode Hydro Multi-E systems are set up from factory as pressure boosting systems, but can be set up to other control modes. See CRI and CRIE installation and operating instructions.
GO and other products of the same type. The pump can also be stopped with Grundfos GO or via a digital When you try to establish radio communication input set to External stop. See section Priority of settings.
Status Settings Assist Setpoint Control mode 10. Description of functions for the system 5.00 bar Const. pressure Hydro Multi-E offers the following functions via Grundfos Go or the pump control panels. 10.1 Settings Operating mode Actual controlled value Normal 10.1.1 Setpoint 4.90 bar...
For pumps without a factory-fitted sensor, you must connect a If the power supply to Hydro Multi-E disconnects, the settings will pressure sensor to one of the analog inputs of the pump. You can be stored. Hydro Multi-E will restart in the same operating condition set the pressure sensor in the Assist menu.
10.4 Pipe-filling function 10.5 Stop function The function is typically used in pressure-boosting applications and You can set the Low-flow stop function to these values: ensures a smooth startup of systems with for instance empty pipes. • Not active Startup takes place in two phases: •...
10.6 Controller Pos. Description The pumps have a factory default setting of gain (K ) and integral Stop pressure time (T Start pressure However, if the factory setting is not the optimum setting, you can change the gain and the integral time: In start-stop operation, the pressure varies between the start and •...
10.7 Operating range Constant differential temperature Set the operating range as follows: • Set the minimum speed within the range from fixed minimum speed to user-set maximum speed. • Set the maximum speed within the range from user-set minimum speed to fixed maximum speed. - 0.5 10 + 5L2 The range between the user-set minimum and maximum speeds is...
Set the flow calculation You can set a detection delay which ensures that the monitored 1. Connect Grundfos GO to each pump in the system (one at the parameter stays above or below a set limit in a set time before the time) and go to settings >...
If you want to set an analog input for other purposes, you can do this manually. If you make the manual setting via Grundfos GO, you need to enter the menu for the analog input under the Settings menu. Function...
11.1.1 Setting two sensors for differential measurement Pos. Sensor function/measured parameter In order to measure the difference of a parameter between two Temperature 2 points, set the corresponding sensors as follows: Diff. temp., ext. Not shown Ambient temp. Analog input for Analog input for Parameter sensor 1...
11.3 Digital inputs Pos. Description Mode A Function Select one of these functions: Mode B • Not active. When set to Not active, the input has no function. Mode C • External stop. When the input is deactivated (open circuit), the Digital input pump stops.
Possible functions, Digital input/output 4 11.5 Signal relay 1 and 2 (Relay outputs) The pump incorporates two signal relays for potential-free signals. Function if input Function if output For further information, see section Signal relays. See details in section Digital See details in section Signal input.
11.7 External setpoint function Resulting setpoint [%] Signal range You can influence the setpoint with an external signal via [V, mA] • one of the analog inputs 0-10 V 10 V • one of the Pt100/1000 inputs if an advanced functional module 0-20 mA 0 mA 20 mA...
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• Linear with Stop. In the input signal range from 20 to 100 %, the setpoint is influenced linearly. If the input signal is below 10 %, the pump changes to operating mode Stop. If the input signal is increased above 15 %, the operating mode is changed back to Normal.
4. Assign a GENI address starting with (1) on the first pump, (2) on the next, etc. 5. Disconnect Grundfos GO from the pump. 6. Connect to the next pump with Grundfos GO and follow steps 3-5. Stop 7. Do the previous steps for the rest of the pumps in the system.
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17. Press on the chosen pump in the list. 18. The Grundfos eye on the pump will flash. Push the connect button on the pump and it will be added to the system.
IR communication remains active. 12.3 Communication When Grundfos GO communicates with the pump, the indicator Factory settings light in the middle of Grundfos Eye will flash green. See section Grundfos Eye. See section Factory settings. Communication must be established using one of these...
12.4 Menu overview for Grundfos GO 12.4.1 Main menus Menu or function available for Menu or function available for system pump Dashboard ● ● Status ● ● Settings ● ● Setpoint ● Operating mode ● Control mode ● Pipe filling function ●...
13.1.1 Pressure switch 13.1.2 Level switch 13.1.1 Pressure switch The Hydro Multi-E can be fitted with an adjustable pressure switch as dry-running protection. The pressure switch is fitted to the inlet manifold. If the inlet pressure is below the lower switching point, the Level switch connected to each pump system cannot start.
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13.1.3 Inlet pressure sensor Terminal Type Function The Hydro Multi-E system can be fitted with one or two inlet Analog output: pressure sensors, either from factory or after delivery. The sensor 0-20 mA / 4-20 mA can monitor the pressure in the inlet manifold and must be 0-10 V connected to one of the analog input.
If two or more functions are enabled at the same time, the system will operate according to the function with the highest priority. Example: If the system has been set to maximum speed via the digital input, the pump control panel or Grundfos GO can only set the system to Manual or Stop.
15. Grundfos Eye The operating condition of Hydro Multi-E is indicated by Grundfos Eye (A) on the pump control panels. Grundfos Eye Grundfos Eye Indication Description The power is off. No lights are on. The motor is not running. The two opposite green indicator lights are The power is on.
The signal outputs can be set to Operation, Running, Ready, Alarm and Warning. The functions of the two signal relays appear from the table below: Contact position for signal relays when activated Operating Description Grundfos Eye mode Operation Running Ready...
17. Digital input 19.1 Maintaining the product Hydro Multi-E has a digital input for external faults. The input has 19.1.1 Pumps been factory-set to external fault and will be active in closed Pump bearings and shaft seals are maintenance-free. condition.
Correct the fault and cut in the out. circuit breakers. Cause Remedy The internal motor protection is Contact Grundfos. The cable is broken or short- Repair or replace the cable. activated. circuited (GENIbus communication between pump The circuit breaker is defective. Replace the circuit breaker.
Maximum torque Terminal Thread size [Nm] Hydro Multi-E with single-phase pumps L1, L2, L3, L, N 3 × 380-415 V ± 10 %, 50/60 Hz, N, PE. Check that the supply voltage and frequency correspond to the NC, C1, C2, NO M2.5...
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In some regions, the system is available with a low inlet Maximum 95 %. manifold which makes it more suitable for suction lift 21.4.6 Maximum operating pressure operation. Contact Grundfos for further information. See system nameplate. Example = 1 bar...
Screened cable: 0.5 - 1.5 mm / 28-16 AWG. Other input/output terminals: -0.5 to 26 VDC or less than 15 mADC. Grundfos Digital Sensor input and output (GDS) Digital inputs (DI) Use Grundfos Digital Sensor only. Internal pull-up current greater than 10 mA at Vi equal to 0 VDC.
Motor bearing monitoring ● ● Pump name Hydro Multi-E Hydro Multi-E Active if inlet sensor is fitted from factory. Only available if an advanced functional module, type FM 300, is fitted. Not active if inlet sensor is fitted from factory.
0.37 - 1.1 ● sound way. 1. Use the public or private waste collection service. ● ● 2. If this is not possible, contact the nearest Grundfos company or service workshop. ● ● The crossed-out wheelie bin symbol on ●...
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Unit 1, Ground floor, Siu Wai industrial Turkey www.ba.grundfos.com Centre GRUNDFOS Pumps NZ Ltd. GRUNDFOS POMPA San. ve Tic. Ltd. Sti. E-mail: grundfos@bih.net.ba 29-33 Wing Hong Street & 68 King Lam 17 Beatrice Tinsley Crescent Gebze Organize Sanayi Bölgesi Street, Cheung Sha Wan...