Wilo-CronoTwin-DL-E

Series description

Special features/product advantages

  • Energy savings due to integrated electronic power adjustment
  • Simple operation with Green Button Technology and display
  • Various operating modes: main/standby operation and parallel operation
  • Configurable fault response tailored to HVAC applications
  • Integrated full motor protection (PTC thermistor sensor) with trip electronics

Design type

Electronically controlled glanded double pump in in-line design with flange connection and automatic power adjustment

Application

Pumping of heating water (acc. to VDI 2035), cold water and water/glycol mixtures without abrasive substances in heating, cold water and cooling systems.

Equipment/function

Operating modes

  • Δp-c for constant differential pressure
  • Δp-v for variable differential pressure
  • PID control
  • Constant speed (n=constant)

Manual operation level

  • Green button and display

Manual functions

  • Differential pressure setpoint setting
  • Setting the speed (manual control mode)
  • Setting the operating mode
  • Setting the pump ON/OFF
  • Configuration of all operating parameters
  • Fault acknowledgement

External control functions

  • "Overriding Off" control input
  • “External pump cycling” control input (effective only in dual pump operation)
  • Analogue input 0 – 10 V, 0 – 20 mA for constant speed (DDC) and remote setpoint adjustment
  • Analogue input 2 – 10 V, 4 – 20 mA for constant speed (DDC) and remote setpoint adjustment
  • Analogue input 0 – 10 V for actual value signal from pressure sensor
  • Analogue input 2 – 10 V, 0 – 20 mA, 4 – 20 mA for actual value signal from pressure sensor

Signal and display functions

  • Collective fault signal SSM
  • Collective run signal SBM

Data exchange

  • Infrared interface for wireless data exchange with IR-Monitor/IR-Stick
  • Plug-in position for Wilo IF-Modules (Modbus, BACnet, CAN, PLR, LON) for connection to building automation

Safety functions

  • Full motor protection with integrated trip electronics
  • Access disable

Dual pump management (double pump or 2 x single pumps)

  • Main/standby operation (automatic fault-actuated switchover)
  • Pump cycling main/standby operation after 24 hours
  • Parallel operation
  • Parallel operation (efficiency-optimised peak-load activation and deactivation)

Scope of delivery

  • Pump
  • Installation and operating instructions

Type key

Example

DL-E 50/170-7.5/2-R1

DL-E

In-line double pump with electronic control

50

Nominal diameter DN of the pipe connection

170

Nominal impeller diameter

7.5

Rated motor power P2 in kW

2

Number of poles

R1

Version without pressure sensor

Technical data

  • Permissible temperature range of -20 °C to +140 °C
  • Mains connection
    • 3~440 V ±10 %, 50/60 Hz
    • 3~400 V ±10 %, 50/60 Hz
    • 3~380 V -5 % +10 %, 50/60 Hz
  • Protection class IP 55
  • Nominal diameter DN 40 to DN 200
  • Max. operating pressure 16 bar

Materials

  • Pump housing and lantern: EN-GJL-250
  • Impeller:
    • Standard version: EN-GJL-200
    • Special version: Bronze CuSn 10
  • Shaft: 1.4122
  • Mechanical seal: AQEGG; other mechanical seals on request

Description/construction

Single-stage, low-pressure double pump in in-line design with

  • Switchover valve
  • Mechanical seal
  • Flange connection
  • Lantern
  • Coupling
  • Drive with integrated electronic speed control

Downloads

Wilo-CronoLine-IL-E/DL-E/BL-E - Installation and operating instructions - 50 Hz

Article Number 2160196
Edition 2017-12
Version number 03
Page format 209.9 x 297.0 mm
Number of pages 261

PDF (25 MB)

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Produkti

PDF: Wilo-CronoTwin-DL-E

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