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Summary of Contents for Grundfos VLSE
- Page 1 GRUNDFOS INSTRUCTIONS VLSE Vertical in-line split coupled pumps with integrated VFD Installation and operating instructions...
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Page 2: Pump Information
VLSE Pump Information ................3... -
Page 3: Table Of Contents
Short duration shutdown Extended period shutdown Maintenance Motor lubrication Disassembly Preparation for disassembly Seal replacement (VLSE) Wear ring replacement Reassembly of pumps Ordering parts Exploded views 10.1 Type VLSE, cross section and parts list Troubleshooting 11.1 Cause codes 11.2 Possible causes... -
Page 4: Installation - Mechanical
Products manufactured in this manual by GRUNDFOS CBS INC. Read these instructions thoroughly before installing and (Grundfos) are warranted to the original user only to be free of operating your Grundfos Type VLSE Vertical In-line Centrifugal defects in material and workmanship for a period of 24 months Pump. -
Page 5: Location
At no point should suction piping be smaller in diameter than the Grundfos Type VLSE In line pumps are designed to be mounted pump suction opening. Avoid any high points, such as pipe loops in horizontal pipe runs with motor positioned vertically upward. -
Page 6: Discharge (Outlet) Piping
National Electrical Code. 4.11 Shaft sealing - general comments Warning Grundfos Type VLSE pumps are equipped with mechanical shaft Whenever powered equipment is being used in seals. explosive surroundings, the rules and regulations generally or specifically imposed by 4.12 Mechanical seals... -
Page 7: Operation
6.1 Priming 2. Fully open gate valve (if any) in suction line, and close gate • The Grundfos Type VLSE in-line centrifugal pumps are not self valve in discharge line. priming, and must be completely primed (filled with liquid) 3. Fill suction line with liquid and completely prime pump. -
Page 8: Maintenance
Flush, if necessary. Allow adequate working area and operating instructions or the lubrication plate on the E-motor. around pump for maintenance or disassembly. If lubricating instructions do not accompany motor, refer to for 8.2 Seal replacement (VLSE) recommended lubrication periods. 1. Complete preparations noted. Motor RPM... -
Page 9: Wear Ring Replacement
Grundfos commitment to state-of-the-art pump design and quality manufacturing assures maximum user benefits with optimum 2. Back-pull rotating assembly, equipment life at lower cost. Grundfos commitment to their 3. It may be necessary to remove volute (1A) from piping, to customers continues through an extensive service organization. -
Page 10: Exploded Views
10. Exploded views 10.1 Type VLSE, cross section and parts list Pos. Description Pos. Description Volute Locating ring Seal cap Pipe plug Impeller Seal cap o-ring Case wear ring Cast iron stand Balance ring Motor bracket Pump shaft Seal cap studs... -
Page 11: Troubleshooting
11. Troubleshooting 11.1 Cause codes Symptoms Cause code Pump does not deliver any liquid at start-up 1*2*3*4*5*6*7*8*9*10*11*14*16*17*22*23*24*34 Pump stops delivering liquid after start-up 2*3*4*5*6*7*8*9*10*11*12*13*22*23*24*34 Pump overheats and/or ceases to deliver liquid 1*3*9*10*11*21*22*27*29*30*31*33*34*40*41 Insufficient flow rate 2*3*4*5*6*7*8*9*10*11*14*16*17*20*21*22*23*24*25*26*34 Excessive flow rate 15*18*20*34 Discharge pressure is too high 4*14*16*18*20*22*23*24*25*26*34 Shaft seal leaks appreciably, or the packing leaks... -
Page 12: General Description
Grundfos GO or wireless remote control. Indicator lights and signal relay Other settings Emergency operation (only 15-30 hp) All other settings can only be made by means of the Grundfos GO Insulation resistance or R100. Maintenance and service Important parameters such as actual value of control parameter, 29.1 Cleaning of the motor... -
Page 13: Mechanical Installation
14. Mechanical installation 15.1.1 Preparation Before connecting the E-pump to the power supply, take the The pump must be secured to a solid foundation by means of issues illustrated in the figure below into consideration. bolts through the holes in the flange or baseplate. In order to retain the UL/cUL approval, follow the additional installation procedures on page 43. - Page 14 15.1.7 Supply voltage and power supply 15.1.8 Start/stop of pump 3 x 440-480 V - 10 %/+ 10 %, 60 Hz, PE. The number of starts and stops via the power 3 x 208-230 V - 10 %/+ 10 %, 60 Hz, PE. supply must not exceed 4 times per hour.
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Page 15: Three-Phase Pumps, 15-30 Hp
15.1.10 Three-phase pumps, 3-10 hp 15.2.1 Preparation Before connecting the E-pump to the power supply, take the Group 3: Power supply (terminals L1, L2, L3) issues illustrated in the figure below into consideration. ELCB Fig. 8 Power supply-connected pump with power switch, backup fuses, additional protection and protective grounding 15.2.2 Protection against electric shock - indirect contact... - Page 16 Over time this varistor will be worn and need to be replaced. terminals 2 and 3 using a short wire. When the time for replacement has come, Grundfos GO, R100 As a precaution, the wires to be connected to the following and PC Tool E-products will indicate this as a warning.
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Page 17: Signal Cables
15.3 Signal cables Group 3: Power supply (terminals L1, L2, L3) • Use screened cables with a conductor cross-section of min. 28 AWG and max. 16 AWG for external on/off switch, digital input, setpoint and sensor signals. • Connect the screens of the cables to frame at both ends with good frame connection. - Page 18 * Common ground for both pressure and temperature signal. * Power supply (screened cable): SELV or PELV. * Grundfos will not be liable for damage or wear to products caused by abnormal operating conditions, accident abuse, Fig. 14 Electrical connections...
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Page 19: Bus Connection Cable
15.5 Bus connection cable 16. Modes Grundfos E-pumps are set and controlled according to operating 15.5.1 New installations and control modes. For the bus connection, use a screened 3-core cable with a conductor cross-section of 28-16 AWG. 16.1 Overview of modes •... -
Page 20: Control Mode
16.3 Control mode 18. Setting by means of control panel 16.3.1 Pumps without factory-fitted sensor Proportional pressure The pump head is reduced at decreasing water demand and The pumps are factory-set to control mode uncontrolled. increased at rising water demand. See fig. 21. In control mode uncontrolled, the pump will operate according to This control mode is especially suitable in systems with relatively the constant curve set, fig. -
Page 21: Setpoint Setting
(top light field flashes). When the top light field is on, press 3 seconds until the light field starts flashing. The pump is designed for wireless communication with Grundfos To return to uncontrolled or controlled operation, press remote control R100. - Page 22 0. GENERAL 1. OPERATION 2. STATUS 3. INSTALLATION 19.1.1 19.2.1 19.3.1 19.3.7 19.1.2 19.2.2 19.3.2 19.3.7 19.1.3 19.2.3 19.3.3 19.3.8 19.1.3 19.2.4 19.3.4 19.3.9 19.1.4 19.2.5 19.3.4 19.3.10 19.2.6 19.3.4 19.3.11 19.1.4 19.2.7 19.3.5 19.3.12 19.2.8 19.3.6 19.3.13 19.2.9 19.3.7 19.3.14 19.3.7 19.3.15...
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Page 23: Menu Operation
Displays in general 19.1.2 Operating mode In the following explanation of the functions, one or two displays are shown. One display Pumps without or with factory-fitted sensor have the same function. Two displays Set one of the following operating modes: Pumps without or with factory-fitted pressure sensor have •... -
Page 24: Menu Status
19.2 Menu STATUS Warning (only three-phase pumps) The displays appearing in this menu are status displays only. It is not possible to change or set values. The displayed values are the values that applied when the last communication between the pump and the R100 took place. If a status value is to be updated, point the R100 at the control panel and press "OK". -
Page 25: Menu Installation
19.2.5 Power input and power consumption 19.2.9 Time till replacement of motor bearings When the motor bearings have been relubricated a prescribed number of times stored in the controller, the display in section 19.2.8 Time till relubrication of motor bearings on page will be replaced by the display below. - Page 26 The table below shows the suggested controller settings: How to set the PI controller For most applications, the factory setting of the controller constants K and T will ensure optimum pump operation. However, in some applications an adjustment of the controller System/application Heating Cooling...
- Page 27 ® • Active • a Grundfos Liqtec dry-running sensor • Not active. • a pressure switch installed on the suction side of a pump When set to Not active (locked), the buttons do not function.
- Page 28 19.3.8 Stop function 2. Flow switch When the digital input is activated for more than 5 seconds because there is low flow, the speed will be increased until the stop pressure (actual setpoint + 0.5 x H) is reached, and the pump will stop.
- Page 29 Diaphragm tank The stop function requires a diaphragm tank of a certain minimum size. The tank must be installed immediately after the pump and the precharge pressure must be 0.7 x actual setpoint. Recommended diaphragm tank size: Rated flow of Typical diaphragm pump CRE pump...
- Page 30 3. Use Grundfos R100 to set the duty/standby to Not active in the installation menu. 4. Use Grundfos R100 to set the Operating mode to Stop in the operation menu. 5. Use Grundfos R100 to set the other displays as required for the pump application (such as setpoint).
- Page 31 19.3.12 Operating range 19.3.14 Confirming relubrication/replacement of motor bearings (only three-phase pumps) How to set the operating range: This function can be set to these values: • Set the min. curve within the range from max. curve to 12 % of maximum performance.
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Page 32: Typical Display Settings For Constant-Pressure E-Pumps
19.4 Typical display settings for constant-pressure E-pumps 1. OPERATION 2. STATUS 3. INSTALLATION 19.1.1 19.2.1 19.3.1 19.3.7 19.1.2 19.2.2 19.3.2 19.3.7 19.1.3 19.2.3 19.3.3 19.3.8 19.1.3 19.2.4 19.3.4 19.3.9 19.2.5 19.3.4 19.3.10 19.2.6 19.3.5 19.3.11 19.2.7 19.3.6 19.3.12 19.2.8 19.3.7 19.3.13 19.3.14 19.3.15... -
Page 33: Typical Display Settings For Analog-Input E-Pumps
19.5 Typical display settings for analog-input E-pumps 1. OPERATION 2. STATUS 3. INSTALLATION 19.1.1 19.2.1 19.3.1 19.3.7 19.1.2 19.2.2 19.3.2 19.3.7 19.1.3 19.2.3 19.3.3 19.3.8 19.1.3 19.2.4 19.3.4 19.3.9 19.2.5 19.3.4 19.3.10 19.2.6 19.3.5 19.3.11 19.2.7 19.3.6 19.3.12 19.2.8 19.3.7 19.3.13 19.3.14 19.3.15... -
Page 34: Grundfos Go Remote
Shows the control mode of the When Grundfos GO Remote communicates with the pump, the Control mode product. indicator light in the middle of the Grundfos Eye will flash green. Actual setpoint Communication must be established using one of these Shows the actual setpoint value. -
Page 35: Setting By Means Of Pc Tool E-Products
20. Setting by means of PC Tool E-products Priority of settings with bus communication Special setup requirements differing from the settings available Control panel External via the R100 require the use of Grundfos PC Tool E-products. Priority or R100 signals communication This again requires the assistance of a Grundfos service technician or engineer. -
Page 36: Digital Input
22.2 Digital input In control mode controlled, the setpoint can be set externally within the range from the lower value of the sensor measuring By means of the , one of the following functions can be selected range to the setpoint set on the pump or by means of the R100. for the digital input: •... -
Page 37: Bus Signal
24. Bus signal The pump supports serial communication via an RS-485 input. The communication is carried out according to Grundfos bus protocol, GENIbus protocol, and enables connection to a building management system or another external control system. Operating parameters, such as setpoint, operating mode, etc. can be remote-set via the bus signal. - Page 38 The functions of the two indicator lights and the signal relay are as shown in the following table: Indicator lights Signal relay activated during: Fault/Alarm, Description Operation Warning Pump Fault (red) Operating Ready (green) running Relubricate The power supply has been switched off. Permanently The pump is operating.
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Page 39: Emergency Operation (Only 15-30 Hp)
27. Emergency operation (only 15-30 hp) 3. Connect the leads as shown in fig. 43. Warning Never make any connections in the pump terminal box unless all electric supply circuits have been switched off for at least 5 minutes. Note for instance that the signal relay may be connected to an external supply which is still connected when the power supply is disconnected. -
Page 40: Insulation Resistance
When it is time to replace the varistor, E-pumps using high voltage megging equipment, Grundfos GO, R100 and PC Tool E-products will indicate this as a as this may damage the built-in electronics. warning. -
Page 41: Inputs/Output
Maximum cable length: 1640 ft (500 m). Screened cable: 20-16 AWG (0.5 - 1.5 mm Bus input Maximum cable length: 1640 ft (500 m). Grundfos bus protocol, GENIbus protocol, RS-485. Screened 3-core cable: 28-16 AWG (0.2 - 1.5 mm Maximum cable length: 1640 ft (500 m). -
Page 42: Other Technical Data
CISPR11, group 2, class A, and may be installed in Max. load: 40 mA. industrial areas (second environment). Short-circuit protected. If equipped with an external Grundfos EMC filter, the Signal relay output motors are category C2, corresponding to CISPR11, Potential-free changeover contact. -
Page 43: Installation In The Usa And Canada
1.7 ft-lbs (2.3 Nm) 1. Use the public or private waste collection service. Relay, M2.5: 0.4 ft-lbs (0.5 Nm) 2. If this is not possible, contact the nearest Grundfos company Input control, M2: 0.15 ft-lbs (0.2 Nm) or service workshop. 32.1.3 Line reactors Max. - Page 47 Grundfos CBS Inc. 902 Koomey Road Brookshire, TX 77423 USA Phone: 281-994-2700 Toll Free: 1-800-955-5847 Fax: 1-800-945-4777 www.grundfosexpresssuite.com...
- Page 48 98670143 0714 ECM: 1139229 www.grundfos.com www.grundfos.us...
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