Grundfos Hydro Multi-B Series Installation And Operating Instructions Manual
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- Page 1 GRUNDFOS INSTRUCTIONS Hydro Multi-B Installation and operating instructions...
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Page 2: Table Of Contents
English (US) Installation and operating instructions Original installation and operating instructions. Warning Prior to installation, read these installation and CONTENTS operating instructions. Installation and operation Page must comply with local regulations and accepted codes of good practice. Symbols used in this document Limited warranty Warning Product introduction... -
Page 3: Limited Warranty
Products manufactured by GRUNDFOS PUMPS CORPORATION 3.1 Introduction (Grundfos) are warranted to the original user only to be free of As standard, Hydro Multi-B booster systems consist of two to defects in material and workmanship for a period of 24 months... -
Page 4: Delivery And Handling
The weight is stated on the nameplate of the booster system. Three CME pumps in operation. 3.3 Applications Grundfos Hydro Multi-B booster systems are for constant pressure boosting applications. The Hydro Multi-B system is designed to maintain a constant pressure on the discharge side of the pumps. Hydro Multi-B... -
Page 5: Features And Benefits
3.4 Features and benefits 4.2 Handling The Hydro Multi-B is developed with focus on user-friendliness Hydro Multi-B booster systems must be lifted as shown in fig. 4. and ease of operation. During handling, the lifting point should always be above the The pumps are controlled via the CU 323 controller which centre of gravity of the booster system. -
Page 6: Identification
5. Identification This section shows the nameplate, the type key and the codes that can appear in the variant code. As codes can be combined, a code position may Note Note contain more than one code (letter). 5.1 Nameplate The nameplate is fitted on the base frame. Fig. -
Page 7: Installation
6. Installation Connect the pipes to the manifolds of the booster system. Either end can be used. Apply sealing compound to the unused end of the manifold, and fit the screw cap. For manifolds with flanges, Warning fit a blanking flange with gasket. Installation and operation must comply with local It is advisable to install pipe supports for the suction and regulations and accepted codes of good practice. -
Page 8: Electrical Installation
6.1.5 Expansion joints Expansion joints are installed with the following purposes: • to absorb expansions/contractions in the pipework caused by changing liquid temperature • to reduce mechanical strains in connection with pressure surges in the pipework • to isolate mechanical structure-borne noise in the pipework (only rubber bellows expansion joints). -
Page 9: Operation
7. Operation 7.1 User interface The Hydro Multi-B incorporates a CU 323 control unit which enables manual setting and monitoring of the booster system. Figure shows the user interface for a system with three pumps. Fig. 8 User interface of cabinet and CU 323 Pos. - Page 10 Table continued from previous page Pos. Displays Description Setpoint Shows the setpoint. E.St External stop: Indicates that the system has been stopped externally via a digital input. Indicates that the system has been set to "OFF". Indicates that the system has been set from OFF to ON. "On" is only shown for 3 seconds after which the setpoint will be shown.
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Page 11: Startup
8. Startup 8.2 Flooded suction and suction lift startup procedures A positive inlet pressure is required before start- 1. Check that the precharge pressure in the diaphragm tank is up and during operation. Caution 0.7 times the required discharge pressure (setpoint). Do not start the pumps until they have been fully Note, precharge must be set with zero pressure on the tank. -
Page 12: Operating Modes
9. Operating modes User operation depends on the system mode. The system modes are described in the following sections. 9.1 Local mode, external stop not activated In this mode, the system is locally controlled, and the external stop via digital input is not activated. The flow charts below show examples of how settings can be made. -
Page 13: Remote-Controlled, External Stop Not Activated
9.3 Remote-controlled, external stop not activated In this mode, the system is remote-controlled, and the external stop via digital input is not activated. If local settings are to be changed, follow the flow chart examples below. Keep pressed for 3 seconds See section 9.1 Local mode, external stop not activated... -
Page 14: Functions
The limit for the minimum inlet pressure in the suction manifold is During the start and stop of a pump, the speed of the speed- a factory-set value which can only be changed by a Grundfos controlled pump is controlled in such way that the pressure service engineer using PC tools. -
Page 15: Data Communication
10.2.3 Maximum pressure exceeded 12. Maintenance and service This function protects the piping on the discharge side of the 12.1 Maintenance booster system against damaging high pressures. The pressure is monitored, and if the pressure is higher than 22 psi (1.5 bar) Warning above the setpoint for more than 5 seconds, the pumps are Before starting work on the pumps, make sure... -
Page 16: Service
12.3 Service 12.3.1 Service tools Product Designation Further information number PC Tool Link 96705378 Anti-static service kit 96884939 12.4 Overview of inputs and outputs 12.4.1 Layout of the back of the CU 323 Fig. 10 Back of the CU 323 Group Description Connection of power supply... - Page 17 Pos. Terminal Description Data Diagram Connection to phase conductor 1 x 100-240 VAC ± 10 %, 50/60 Hz Connection to neutral conductor Connection to protective earth RS-485 A E-pump GENIbus (internal) RS-485 GND Fix the screen with a cable clamp. RS-485 B Functional earth Connection to external fieldbus, see installation and operating instructions for the CIM module.
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Page 18: Fault Finding
Main disconnect switch turned off. Turn on the main disconnect switch. Main switch is defective. Replace the main switch. Motor protection is activated. Contact Grundfos. The pumps are not running. Motor is defective. Repair or replace the motor. Replace the pressure transmitter. -
Page 19: Maintenance
Ensure that the escaping water does not cause at which the pump will run. injury to persons or damage to the motor or other (See Grundfos CM, CME Data booklet 98435269 / L-CM-PG-001). components. = Safety margin = minimum 2 feet. -
Page 20: Sound Pressure Level
Hydro Multi-B system will be lower than 90 dB(A). environmentally sound way: 1. Use the public or private waste collection service. 18. Electrical data 2. If this is not possible, contact the nearest Grundfos company or service workshop. Supply voltage See Hydro Multi-B nameplate. - Page 21 Grundfos Kansas City Grundfos Canada Grundfos México 17100 West 118th Terrace 2941 Brighton Road Boulevard TLC No. 15 Olathe, Kansas 66061 Oakville, Ontario L6H 6C9 Canada Parque Industrial Stiva Aeropuerto Phone: +1-913-227-3400 Phone: +1-905 829 9533 C.P. 66600 Apodaca, N.L. Mexico...
- Page 22 98504518 0117 ECM: 1201915 www.grundfos.com www.grundfos.us...