Multiple-Pump Units Programm Overview, Multiple-Pump Units Multiple-pump units (non-self-priming) Programm Overview, Multiple-Pump Units Wilo-Comfort-N-Vario COR MVISE / VR Duty chart 16m 56 m /h Factory-assembled water-supply unit (non-self-priming) with 2 to parallel, vertically arranged glandless stainless-steel high-pressure centrifugal pumps, incl. VR Vario controller. Application: Pressurized water supply and pressure boosting in residential, commercial and public buildings, hotels, hospitals, department stores and for industrial and process engineering. Wilo- COR MVIE / VR Duty chart 15m 9 m /h Factory-assembled water-supply unit (non-self-priming) with 2 to parallel, vertically arranged glanded stainless-steel high-pressure centrifugal pumps, incl. VR Vario controller. Application: Pressurized water supply and pressure boosting in residential, commercial and public buildings, hotels, hospitals, department stores and for industrial and process engineering. Wilo- COR MIE / VR Duty chart 8m 1 m /h Factory-assembled water-supply unit (non-self-priming) with 2 to parallel, horizontally arranged glanded stainless-steel high-pressure centrifugal pumps, incl. VR Vario controller. Application: Pressurized water supply and pressure boosting in residential, commercial and public buildings, hotels, hospitals, department stores and for industrial and process engineering. EMU in association with Wilo AG Duty chart 6 m 1,8 m /h Customized water-supply units and pressure booster plants with horizontally or vertically arranged pressure-jacket pumps. Single pump performance figures up to 5 m /h and 6 m delivery head. Application: Primarily communal water supply or similar applications. Accessories Diaphragm expansion vessels Atmospherically ventilated tanks Float valves Diaphragm valves Flexible connections etc. 22 As of: 6/2 - Subject to change without prior notice
Multiple-Pump Units Product Advantages, Multiple-Pump Units Multiple-pump units (non-self-priming) Wilo-Comfort-N-Vario COR MVISE / VR Virtually noiseless system thanks to 2- parallel glandless stainless-steel high-pressure centrifugal pumps with integrated water-cooled frequency converter Up to 2 db[a] quieter than conventional systems with comparable hydraulic performance Control range of frequency converters from 2 to 5 z Operationally reliable thanks to the MVISE pump series used with integrated dry-running detection and automatic cutout in event of low water Product Advantages, Multiple-Pump Units Ultimate control quality and supremely easy operation thanks to the VR controller used See also: Unit Description: from page 27 Equipment/Function/Technical Data: from page 29 Pump Curves, Electrical Connection, Dimension Drawings...: from page 299 Wilo- COR MVIE / VR Sturdy system thanks to MVIE Series stainless-steel high-pressure centrifugal pumps with air-cooled integrated frequency converter Broad hydraulic spectrum, in series up to 9 m /h and 15 m delivery head, through the use of all MVIE Series pumps Superproportionally large control range of frequency converter from 25/26 to max. 65 z Integrated full motor protection via PTC Wilo- COR MIE / VR Compact system with outstanding price/performance ratio thanks to MIE Series stainless-steel high-pressure centrifugal pumps with integrated air-cooled frequency converters Superproportionally large control range of frequency converter from 26 to max. 65 z Integrated full motor protection via PTC Integrated dry-running detection with automatic cutout in event of low water by way of performance characteristics of the motor control electronics Integrated dry-running detection with automatic cutout in event of low water by way of performance characteristics of the motor control electronics Ultimate control quality and supremely easy operation thanks to the VR controller used See also: Unit Description: from page 27 Equipment/Function/Technical Data: from page 29 Pump Curves, Electrical Connection, Dimension Drawings...: from page Ultimate control quality and supremely easy operation thanks to the VR controller used See also: Unit Description: from page 27 Equipment/Function/Technical Data: from page 29 Pump Curves, Electrical Connection, Dimension Drawings...: from page 21 EMU Individual preassembled water-supply units and pressure booster plants to suit the requirements profile extending beyond the standard performance range of construction engineering offered by Wilo. Accessories Extensive, superior-quality accessories to cover all requirements for creating a complete pressure booster station As of: 6/2 - Subject to change without prior notice 2
Wilo Comfort Vario Controller VR Setup and Function Description, Comfort Vario Controller VR Comfort Vario controller VR ardware Central control unit of fully electronic modular design for automatic control of max. parallel pumps which contain an integrated/ adapted frequency converter for infinitely variable speed control. Sheet steel case of IP 5 protection class with master switch, LC display and single dial/pushbutton. Modules Operating and display module: for the communication between system and operator, built in the switch board door, consisting of: LCD display (alphanumeric, background illuminated) for the display of set and actual pressure levels and all control parameters including all set time settings as well as operating states of the pumps (Manual/Off -Auto), fault signals and event memory. Dial/pushbutton (single-button operation) for call-up, changing and acknowledging of setpoint, control and parameter settings and Pilot diodes to indicate operating conditions such as: Power on Plant operating Pump fault Low-water cutout Excess pressure. Base board with power pack to provide all required voltages, signal adaptation and filtration links-up to the controller board and to the operating and display module, connections to the optionally available individual run and fault signal adapter cards. Terminals for wiring to the actual value sensor, low-water signal contacts, control terminals. Internal RS 22/RS 85 interfaces. GLT connections for collective run signal, collective fault signal (floating contacts), External ON/OFF. changeover switches for selecting a settable direct voltage for all pumps (emergency function in the event of controller-board failure). Low-water recognition via float switch or pressure switch (option immersion probes). Adjustable run-on time with low water. Menu prompting via symbols and digits Manual--Automatic operation Optionally with or without standby pump. Periodical test run On/Off Service life extension with hours-run control Operating-hours counter, unit/pumps Automatic fault-actuated duty changeover from operating pump to standby pump. Time-sensitive changeover/rotation of all pumps. Fault event memory for previously occurred faults. Excess pressure cut-out via pressure sensor impulse seconds after exceeding the onsite adjustable excess pressure level. Consumption-sensitive activation/cut-in of the base-/peak-load pumps. Deactivation of peak-load pumps as a function of load demand. Base-load pump by means of zero-flow test. Standards/guidelines: The overall plant system conforms with the requirements of DIN 1988 Parts 5/6 Regarding the electrical components the plant complies to the requirements of VDE 1 Part /Part 5 VDE 11 Part 1/Part 2 VDE 66 Part 11/Part 17 and DIN 719/IEC 75 Electronics/EMC details Multiple-pump systems up to and including 7.5 KW motor power output: - Emitted interference as per VDE 89 Part 81-1 EN 581 T1 - Interference immunity as per VDE 89 Part 82-1 EN 582 T2 Multiple-pump systems 11-22 KW motor power output: The product conforms to the specifications of EN 618- and satisfies the requirements of residential areas in relation to emittedinterference levels and the requirements of industrial areas in relation to interference-immunity levels. For use in residential areas, it is also necessary to provide an EMC suppression filter for line-side interference suppression in accordance with EN 618- Class B1. Note: Systems to be deployed in residential buildings must be installed by fully EMC-trained personnel. Controller board for the functional performance of all control features. Software/automatic control Fully automatic, infinitely variable control of 1 to parallel pumps with integrated/adapted frequency converter in function p = constant via 2 ma sensor with wire break/sensor-fault detection. Electrical connection Refer to the Chapter "Electrical Connection" of the unit/system in question. Important When installing residual-current-operated protection switches in conjunction with frequency converters, bear in mind that only universal-current-sensitive residual-current-operated protection switches as per DIN/VDE 66 are to be provided. Wilo Comfort Vario Controller VR Setup and Function Description, Comfort Vario Controller VR As of: 6/2 - Subject to change without prior notice 295
Wilo Comfort Vario Controller VR Setup and Function Description, Comfort Vario Controller VR 12 Illustration : Activation of peak-load pumps 1 Standby 8 Switch-on point (standby circuit only) of the peak-load pump 1 at 2/26 zat 96 % speed of base duty *. Setpoint 6 as before Speed (2/26 z) up to max. 5 z at MVISE, or max. 65 z at MVIE/MIE Permissible control range: Setpoint 5, bar = control range ±,1 bar Setpoint 5, bar = control range ± 2 % of setpoint 2 Base duty Peak-load 1 Peak-load 2 2 6 8 1 12 1 16 Fig. 1: Cut-in of peak-load pumps * pauses the base duty pump with available Dr = Deactivation of peak-load pump after 15 seconds Function description The Wilo Comfort Vario pressure booster plant is monitored and controlled by the Comfort Vario controller in conjunction with a number of pressure and level control sensors. The pumps will be switched on or off in the cascade mode under pressure related control within the control range according to load demand. Splitting the total duty over a number of pumps, each of which featuring infinitely variable speed control by integrated/adapted frequency converter, will ensure a continual duty adaptation to the ever changing load / consumption within the preset pressure control range width. The permitted control range is up to a setpoint value of 5. bar ±.1 bar. In the case of a setpoint value greater than 5. bar, the permitted control range is ±2% of the set setpoint value. A precondition for this is that the rate of change of flow velocity on water draw-off is not greater than the control reaction speed of a pump, (1 second ramp run-up time of the frequency converter) or on overload on a pump = ramp time + time delay on starting the peak-load pump(s). Activation of base-load pump The base-load pump starts undelayed under automatic control if the system pressure drops below the programmed setpoint value. The pump integrated frequency converter will, within the control range, control its performance (from zero to maximum flow) matching it infinitely variably to the load condition of the system. Series MVISE pumps allow a speed range in the frequency range from 2 z to 5 z. Cut-in of peak-load pumps (see Fig. 1) On rising water supply demand the base-load pump will first run up to its maximum speed. Speed control is blocked at this point to allow this pump to operate at optimum efficiency. Peak-load pump 1 now assumes the control function. It had already been started by the Comfort Vario controller at 96% speed of the base-load pump. But this only takes the form of a standby function (2/26 z operation) so that the control function can be assumed without delay in the event that the power of the base-load pump is exceeded. This ensures that the pressure surge that normally occurs is reliably prevented even when the peak-load pump is cut in. If a steady state ensues after the 1st peak-load pump has been activated, i.e. there is no further recording of rising system water demand, the peak-load pump is shut down again after a period of 15 s has elapsed, thus avoiding unnecessary waste of electric power. During the period that peak-load pump 1 is on standby it has no influence whatsoever on the hydraulic performance of the overall pressure booster plant due to its low speed in 2 z operation. 296 As of: 6/2 - Subject to change without prior notice
Wilo Comfort Vario Controller VR Setup and Function Description, Comfort Vario Controller VR 12 Illusration 2: Deactivation of peak-load pumps 1 Standby 8 Lowering of peak-load pump speed Transferring the base duty pump to the control Lowering of peak-load pump speed level to 2 / 26 z. Deactivation of peak-load pump after 15 seconds Setpoint 6 Permissible control range: Setpoint 5, bar = control range ±,1 bar Setpoint 5, bar = control range ± 2 % of setpoint 2 Base duty Peak-load 1 Peak-load 2 2 6 8 1 12 1 16 Fig. 2: Deactivation of peak-load pumps The start of additional peak-load pumps is initiated analogue to the above description. Automatic speed control of all previously operating pumps will be deactivated and the control duty is taken over by the newly started pump. Economical operation at rated full speed and optimum efficiency is thus achieved of the already fully loaded pumps. Deactivation of peak-load pumps (see Fig. 2) When water demand reduces, the peak-load pump in operation is first run down until it no longer has any influence on the hydraulic performance of the pressure booster plant. This is the case when its delivery head due to the speed change drops below the setpoint delivery head at the duty point and thus below the performance range of the base-/peak-load pump still running up to this point at max. blocked speed. The Comfort - Vario controller will then actuate the transfer of the next peak-load or base-load pump respectively to automatically controlled Variable speed operation. The speed of the already run down peak-load pump will be reduced to the most possible minimum of 2 z. The peak-load pump will be fully switched off after a time delay of 15 seconds. Other still running peak-load pumps will be successively switched off on continually dropping water supply demand analogue to the above stated descriptions. As of: 6/2 - Subject to change without prior notice 297
Wilo Comfort Vario Controller VR Setup and Function Description, Comfort Vario Controller VR 12 Illustration : Zero-quantity test or cut-out 1 Standby Raising the setpoint by.1 baror by 2 % of the setpoint 8 Resetting the setpoint to previously defined default Setpoint [m] 6 Reducing the speed until the speed and pressure are constant Then zero-quantity test Time cycle of 6 sec. 2 Base duty Peak-load 1 Peak-load 2 2 6 8 1 12 1 16 Fig. : Zero-flow test or deactivation Zero-flow test or deactivation of base-load pump (see Fig. ) In order to prevent the system from hunting and the potentially associated pressure fluctuations, the Comfort Vario controller deactivates the entire pressure booster plant only when there is no water drawn off whatsoever. The preconditions for this state are established by the so-called zero flow test as carried out by the Comfort Vario controller. The minimum requirements are that only the base-load pump is still running and the system pressure and the speed of the base-load pump have remained constant for a specific, parameterizable timeframe. The zero-flow test is initiated and performed by the Comfort Vario controller if these requirements are satisfied. To this end, the setpoint pressure value is raised for 6 seconds to a level increased by.1 bar (at setpoint pressure values 5. bar). At setpoint pressure values > 5. bar the increase is 2% of the nominal value. After that the setpoint is set back to its original level. If, during that time, the actual system pressure remains at the raised setpoint level, the pressure booster plant is deactivated as water is no longer being drawn off. owever, if the actual pressure drops by a minimum of.1 bar in relation to the raised setpoint level, the baseload pump continues to operate as water is still being drawn off. 298 As of: 6/2 - Subject to change without prior notice
Wilo-Comfort-N-Vario COR-2 to COR- MVISE.../VR Duty Charts Comfort-N-Vario COR-2 to COR- MVISE 26/VR 7 6 COR 2 - MVISE 26/VR 5 2 1 8 12 16 2 1, 2,,, 5, 6, 1 COR-2 MVISE 26/VR 2 COR- MVISE 26/VR COR-2 MVISE 26/VR COR- MVISE 26/VR COR- MVISE 26/VR Select next higher series "Series " COR- MVISE 26/VR Wilo-Comfort-N-Vario COR-2 to COR- MVISE.../VR Duty Charts Comfort-N-Vario COR-2 to COR- MVISE 21/VR 12 1 COR 2 - MVISE 21/VR 8 6 2 8 12 16 2 1, 2,, 1 COR-2 MVISE 21/VR 2 COR- MVISE 21/VR COR-2 MVISE 21/VR COR- MVISE 21/VR COR- MVISE 21/VR Select next higher series "Series " COR- MVISE 21/VR, 5, 6, As of: 6/2 - Subject to change without prior notice 299
Comfort-N-Vario COR-2 to COR- MVISE /VR Wilo-Comfort-N-Vario COR-2 to COR- MVISE.../VR Duty Charts 5 COR 2 - MVISE /VR 2 1 5 1 15 2 25 5 6 7 8 9 1 COR-2 MVISE /VR 2 COR- MVISE /VR COR-2 MVISE /VR COR- MVISE /VR COR- MVISE /VR Select next higher series "Series 8" COR- MVISE /VR Comfort-N-Vario COR-2 to COR- MVISE 6/VR 7 6 COR 2 - MVISE 6/VR 5 2 1 5 1 15 2 25 5 6 7 8 9 1 COR-2 MVISE 6/VR 2 COR- MVISE 6/VR COR-2 MVISE 6/VR COR- MVISE 6/VR COR- MVISE 6/VR Select next higher series "Series 8" COR- MVISE 6/VR As of: 6/2 - Subject to change without prior notice
Wilo-Comfort-N-Vario COR-2 to COR- MVISE.../VR Duty Charts Comfort-N-Vario COR-2 to COR- MVISE 1/VR 12 1 COR 2 - MVISE 1/VR 8 6 2 5 1 15 2 25 5 6 7 8 9 1 COR-2 MVISE 1/VR 2 COR- MVISE 1/VR COR-2 MVISE 1/VR COR- MVISE 1/VR COR- MVISE 1/VR Select next higher series "Series 8" COR- MVISE 1/VR Comfort-N-Vario COR-2 to COR- MVISE 8/VR 5 COR 2 - MVISE 8/VR 25 2 15 1 5 5 6 2 6 8 1 12 1 16 18 1 COR-2 MVISE 8/VR 2 COR- MVISE 8/VR COR-2 MVISE 8/VR COR- MVISE 8/VR COR- MVISE 8/VR COR- MVISE 8/VR As of: 6/2 - Subject to change without prior notice 1
Comfort-N-Vario COR-2 to COR- MVISE 86/VR Wilo-Comfort-N-Vario COR-2 to COR- MVISE.../VR Duty Charts, Electrical Connection 7 6 COR 2 - MVISE 86/VR 5 2 1 5 6 2 6 8 1 12 1 16 18 1 COR-2 MVISE 86/VR 2 COR- MVISE 86/VR COR-2 MVISE 86/VR COR- MVISE 86/VR COR- MVISE 86/VR COR- MVISE 86/VR Duty Charts, Electrical Connection Electrical connection, ~ V, 5 z L1 L2 L N PE U V W PE 1 2 6 Ext. WMS Sensor SSM SBM I/O +2 V ESM I N +2 V 1 2 6 2 As of: 6/2 - Subject to change without prior notice
Wilo-Comfort-N-Vario COR-2 to COR- MVISE.../VR Dimension Drawings, Dimensions, Weights, Motor Data Dimension drawings COR-2 to COR- MVISE 26 to 1 and COR-2 bis COR- MVISE 8 to 86 /VR Illustration: COR-2.. MVISE.../VR-EB with non-return valves on suction side (option)(*)! Illustration: COR-2.. MVISE.../VR-EB with non-return valves on suction side (option)(*)! 175 175 Option: WMS Option: WMS MVISE 1 A F 9 C ( * ) B E F F D ( * ) F A 17 9 5 C ( * ) B E D ( * ) * Important: If the check valve is optionally fitted on the pressure side, dimensions B and C change as follows: MVIS 2../..: dimension B = - mm dimension C = + mm * Important: If the check valve is optionally fitted on the pressure side, dimensions B and C change as follows: MVIS 8..: dimension B = - 56 mm dimension C = + 56 mm Dimensions, weights, motor data Wilo-Comfort-N-Vario COR... Dimension Drawings, Dimensions, Weights, Motor Data Note: Optional check valve mounted on the suction side. A B C D E Mains system voltage Mains frequency P 1 pump I N pump Nominal dia. F Weight [mm] [V] [z] [W] [A] [R] [kg] 2 MVISE 26/VR-EB 6 675 1 75 7 ~ 5 1,8.9 2 9 2 MVISE 21/VR-EB 6 675 1 75 856 ~ 5 2,5 6.7 2 16 2 MVISE /VR-EB 6 675 1 75 682 ~ 5 1,.6 2 92 2 MVISE 6/VR-EB 6 675 1 75 7 ~ 5 1,8 5. 2 9 2 MVISE 1/VR-EB 6 675 1 75 856 ~ 5 2,98 8. 17 2 MVISE 8/VR-EB 6 869 9 86 928 715 ~ 5 1,61.1 17 2 MVISE 86/VR-EB 6 869 9 86 928 85 ~ 5,2 8.2 15 MVISE 26/VR-EB 9 675 1 75 7 ~ 5 1,8.9 2 15 MVISE 21/VR-EB 9 675 1 75 856 ~ 5 2,5 6.7 2 15 MVISE /VR-EB 9 675 1 75 682 ~ 5 1,.6 2 12 MVISE 6/VR-EB 9 675 1 75 7 ~ 5 1,8 5. 2 15 MVISE 1/VR-EB 9 675 1 75 856 ~ 5 2,98 8. 15 MVISE 8/VR-EB 9 869 9 86 928 715 ~ 5 1,61.1 185 MVISE 86/VR-EB 9 869 9 86 928 85 ~ 5,2 8.2 2 MVISE 26/VR-EB 1,2 675 1 75 7 ~ 5 1,8.9 2 175 MVISE 21/VR-EB 1,2 675 1 75 856 ~ 5 2,5 6.7 2 199 MVISE /VR-EB 1,2 78 19 26 782 682 ~ 5 1,.6 2 1 / 2 17 MVISE 6/VR-EB 1,2 78 19 26 782 7 ~ 5 1,8 5. 2 1 / 2 177 MVISE 1/VR-EB 1,2 78 19 26 782 856 ~ 5 2,98 8. 1 / 2 2 MVISE 8/VR-EB 1,2 869 9 86 928 715 ~ 5 1,61.1 2 MVISE 86/VR-EB 1,2 869 9 86 928 85 ~ 5,2 8.2 259 As of: 6/2 - Subject to change without prior notice