Grundfos CRE Series Installation And Operating Instructions Manual
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Grundfos CRE Series Installation And Operating Instructions Manual

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DBP-1 - GRUNDFOS PUMP CRE - 99392005
GRUNDFOS INSTRUCTIONS
CRE, CRIE, CRNE
CRKE, SPKE, MTRE, CHIE, CME
1 & 3 phase
Installation and operating instructions

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Summary of Contents for Grundfos CRE Series

  • Page 1 DBP-1 - GRUNDFOS PUMP CRE - 99392005 GRUNDFOS INSTRUCTIONS CRE, CRIE, CRNE CRKE, SPKE, MTRE, CHIE, CME 1 & 3 phase Installation and operating instructions...

  • Page 3: Table Of Contents

    Mechanical installation Motor cooling Products manufactured by GRUNDFOS PUMPS CORPORATION Outdoor installation (Grundfos) are warranted to the original user only to be free of defects in material and workmanship for a period of 24 months Electrical connection Single-phase pumps from date of installation, but not more than 30 months from date Three-phase pumps, 1 - 10 Hp of manufacture.

  • Page 4: Symbols Used In This Document

    All other settings can only be made by means of the R100. Important parameters such as actual value of control parameter, power consumption, etc. can be read via the R100. If special or customized settings are required, use the Grundfos Warning PC Tool E-products. Contact your local Grundfos company for If these safety instructions are not observed, it more information.

  • Page 5: Single-Phase Pumps

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 6.1 Single-phase pumps 6.1.5 Motor protection The pump requires no external motor protection. The motor Warning incorporates thermal protection against slow overloading and The user or the installer is responsible for the blocking (IEC 34-11, TP 211).

  • Page 6: Three-Phase Pumps, 1 - 10 Hp

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 6.1.9 Connections 6.2 Three-phase pumps, 1 - 10 Hp If no external on/off switch is connected, connect Warning terminals 2 and 3 using a short wire. The user or the installer is responsible for the...
  • Page 7 DBP-1 - GRUNDFOS PUMP CRE - 99392005 This circuit breaker is type B. Warning The total leakage current of all the electrical equipment in the Do not connect three-phase E-pumps to a power installation must be taken into account. supply with a voltage between phase and ground The leakage current of the motor in normal operation can be seen of more than 440 V.
  • Page 8 DBP-1 - GRUNDFOS PUMP CRE - 99392005 6.2.10 Three-phase pumps, 1 - 7.5 Hp 6.2.11 Three-phase pumps, 10 Hp Group 3: Power supply (terminals L1, L2, L3) Group 3: Power supply (terminals L1, L2, L3) 1: Digital input 2 9: GND (frame)

  • Page 9: Three-Phase Pumps, 15 - 30 Hp

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 • Two protective ground leads of the same cross-sectional area 6.3 Three-phase pumps, 15 - 30 Hp as the power supply leads, with one lead connected to an additional ground terminal in the terminal box.
  • Page 10 DBP-1 - GRUNDFOS PUMP CRE - 99392005 All control terminals are supplied with protective extra-low voltage (PELV), thus ensuring protection against electric shock. Group 2: Output (relay signal, terminals NC, C, NO) Torques, terminals L1-L3: The output (group 2) is galvanically separated from other Min.

  • Page 11: Signal Cables

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 6.4 Signal cables 6.5 E-pump electrical connections • Use screened cables with a conductor cross-section of min. 6.5.1 Connection of E-pump to Danfoss pressure sensor 28AWG and max. 16AWG for external on/off switch, digital MBS3000 input, setpoint and sensor signals.

  • Page 12: Bus Connection Cable

    If a screened 3-core cable is used in the existing installation, follow the instructions in section 6.6.1 New installations on page 12. 7. Modes Grundfos E-pumps are set and controlled according to operating and control modes. 7.1 Overview of modes Normal Stop Min.

  • Page 13: Setting Up The Pump

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 9.1 Setting of operating mode Controlled Uncontrolled Settings available: • Normal • Stop • Min. • Max. Start/stop of pump Start the pump by continuously pressing until the desired setpoint is indicated. This is operating mode Normal.

  • Page 14: Setting By Means Of R100

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 [bar] Fig. 25 Setpoint set to 3 bar, pressure control 9.2.2 Pump in control mode uncontrolled Example In control mode uncontrolled, the pump performance is set within the range from min. to max. curve. See fig. 26.
  • Page 15 DBP-1 - GRUNDFOS PUMP CRE - 99392005 0. GENERAL 1. OPERATION 2. STATUS 3. INSTALLATION 10.1.1 10.2.1 10.3.1 10.3.7 10.1.2 10.2.2 10.3.2 10.3.7 10.1.3 10.2.3 10.3.3 10.3.8 10.1.3 10.2.4 10.3.4 10.3.9 10.3.4 - 10.1.4 10.2.5 10.3.10 10.3.4 - 10.2.6 10.3.11 10.1.4...

  • Page 16: Menu Operation

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 The operating modes can be set without changing the setpoint Displays in general setting. In the following explanation of the functions, one or two displays are shown. 10.1.3 Fault indications In E-pumps, faults may result in two types of indication: alarm or One display warning.

  • Page 17: Menu Status

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 10.2.2 Operating mode In case of "alarm" faults, the last five alarm indications will appear in the alarm log. "Alarm log 1” shows the latest fault, "Alarm log 2" This display shows the actual operating mode (Normal (duty), shows the latest fault but one, etc.

  • Page 18: Menu Installation

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 10.2.7 Lubrication status of motor bearings (only 15 - 30 Hp) 10.3 Menu INSTALLATION 10.3.1 Control mode Without sensor With pressure sensor (uncontrolled) (controlled) This display shows how many times the motor bearings have been relubricated and when to replace the motor bearings.
  • Page 19 DBP-1 - GRUNDFOS PUMP CRE - 99392005 10.3.3 External setpoint Heating Cooling System/application systems system The input for external setpoint signal can be set to different signal types. Select one of the following types: • 0-10 V –0.5 10 + 1.52L •...
  • Page 20 DBP-1 - GRUNDFOS PUMP CRE - 99392005 Dry running (only three-phase pumps): 10.3.5 Buttons on pump When this function is selected, lack of inlet pressure or water shortage can be detected. This requires the use of an accessory, such as these: ®...
  • Page 21 DBP-1 - GRUNDFOS PUMP CRE - 99392005 Three-phase pumps Diaphragm tank 1. If the flow is higher than the low-flow limit, the pump will return The stop function requires a diaphragm tank of a certain minimum to continuous operation at constant pressure.
  • Page 22 4. Use the Grundfos R100 programmer to set the "operating mode" to "stop" in the operation menu. 5. Use the Grundfos R100 programmer to set the other displays as required for the pump application (such as setpoint). 6. Disconnect the power supply to both pumps.
  • Page 23 DBP-1 - GRUNDFOS PUMP CRE - 99392005 10.3.13 Motor bearing monitoring (only three-phase pumps) The motor bearing monitoring function can be set to these values: • Active • Not active. When the function is set to Active, a counter in the controller will start counting the mileage of the bearings.

  • Page 24: Typical Display Settings For Constant Pressure E-Pumps

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 10.4 Typical display settings for constant pressure E-pumps 1. OPERATION 2. STATUS 3. INSTALLATION 10.1.1 10.2.1 10.3.1 10.3.7 10.1.2 10.2.2 10.3.2 10.3.7 10.1.3 10.2.3 10.3.3 10.3.8 10.3.4 - 10.1.3 10.2.4 10.3.9 10.3.4 - 10.2.5...

  • Page 25: Typical Display Settings For Analog Input E-Pumps

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 10.5 Typical display settings for analog input E-pumps 1. OPERATION 2. STATUS 3. INSTALLATION 10.1.1 10.2.1 10.3.1 10.3.7 10.1.2 10.2.2 10.3.2 10.3.7 10.1.3 10.2.3 10.3.3 10.3.8 10.3.4 - 10.1.3 10.2.4 10.3.9 10.3.4 - 10.2.5...

  • Page 26: Setting By Means Of Pc Tool E-Products

    Special setup requirements differing from the settings available or R100 signals communication via the R100 require the use of Grundfos PC Tool E-products. Stop Stop This again requires the assistance of a Grundfos service technician or engineer. Contact your local Grundfos company for Max.

  • Page 27: External Setpoint Signal

    The pump supports serial communication via an RS-485 input. the pump can be controlled by any controller. The communication is carried out according to the Grundfos bus protocol, GENIbus protocol, and enables connection to a building In control mode controlled, the setpoint can be set externally management system or another external control system.

  • Page 28: Indicator Lights And Signal Relay

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 17. Indicator lights and signal relay The operating condition of the pump is indicated by the green and red indicator lights fitted on the pump control panel and inside the terminal box. See fig. 41 and fig. 42.
  • Page 29 DBP-1 - GRUNDFOS PUMP CRE - 99392005 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 Fault Operation Warning Pump Operating Ready (red)

  • Page 30: Insulation Resistance

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 2. Disconnect the motor supply leads, U/W1, V/U1, W/V1, from 18. Insulation resistance the terminal box. 0.5 - 10 Hp Do not measure the insulation resistance of motor windings or an installation incorporating E-pumps using high voltage megging equipment, as this may damage the built-in electronics.

  • Page 31: Maintenance And Service

    When it is time to replace the varistor, R100 and PC Tool E-products will indicate this as a warning. A Grundfos technician is required for replacement of the varistor. Contact your local Grundfos company for assistance.

  • Page 32: Technical Data - Three-Phase Pumps, 1 - 10 Hp

    DBP-1 - GRUNDFOS PUMP CRE - 99392005 Sensor signals 22.4 Inputs/output • Voltage signal Start/stop 0-10 VDC, R > 50 k (via internal voltage supply). External potential-free contact. Tolerance: + 0 %/- 3 % at maximum voltage signal. Voltage: 5 VDC.

  • Page 33: Technical Data - Three-Phase Pumps, 15 - 30 Hp

    (via internal voltage supply). industrial areas (second environment). Screened cable: 0.5 - 1.5 mm / 28-16 AWG. If equipped with an external Grundfos EMC filter, the Maximum cable length: 328 ft. motors are category C2, corresponding to CISPR11, • Voltage signal...

  • Page 34: Disposal

    [Hp] [kVA] 1. Use the public or private waste collection service. 1500 2. If this is not possible, contact the nearest Grundfos company or service workshop. 2700 3000 20 Hp motors do not comply with EN 61000-3-12.
  • Page 35 DBP-1 - GRUNDFOS PUMP CRE - 99392005 Appendix 25. Installation in the USA and Canada 25.2 General considerations For installation in humid environment and fluctuating In order to maintain the UL/cUL approval, follow temperatures, it is recommended to keep the pump connected to these additional installation instructions.
  • Page 36 DBP-1 - GRUNDFOS PUMP CRE - 99392005...
  • Page 37 DBP-1 - GRUNDFOS PUMP CRE - 99392005 U.S.A. Canada México GRUNDFOS Pumps Corporation GRUNDFOS Canada Inc. Bombas GRUNDFOS de México S.A. de C.V. 17100 West 118th Terrace 2941 Brighton Road Boulevard TLC No. 15 Olathe, Kansas 66061 Oakville, Ontario Parque Industrial Stiva...

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