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Wilo-CronoTwin-DL-E | Wilo
Your advantages
Wilo-CronoTwin DL-E

Your 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

Series description
CronoTwin-DL-E

Design

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

Application

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

Typekey

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
  • Compliance with electromagnetic compatibility without additional measures:
    • Interference emission for residential environment according to EN 61800-3:2018
    • Interference immunity for industrial environments according to EN 61800-3:2018
  • Protection class IP55
  • Nominal diameter DN 40 to DN 200
  • Max. operating pressure 16 bar up to +120 °C, 13 bar up to +140 °C

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

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

Scope of delivery

  • Pump
  • Installation and operating instructions

Options

  • Variant …-R1 without differential pressure sensor
  • ...-L1 variant with bronze impeller (at additional charge)

Accessories

  • 3 Mounting brackets with fixation material for installation on a base
  • Blind flanges for double pump housing
  • IR-Monitor, Wilo-IR-Stick
  • IF-Module PLR for connecting to PLR/interface converter
  • IF-Module LON for connection to the LONWORKS network
  • IF-Module BACnet
  • IF-Module Modbus
  • CAN IF-Module
  • VR-HVAC control system
  • Control system CCe-HVAC
  • Control system SCe-HVAC
  • Differential pressure sensor (DDG)
Documents

Installation and operating instructions

Wilo-CronoLine-IL-E (5,5-7,5 kW), Wilo-CronoTwin-DL-E (5,5-7,5 kW)

Article Number 2160196
Edition 2022-08
Number of pages 260
Language de, en, fr, nl
PDF (27 MB)

Wilo-CronoLine-IL-E (11-22 kW), Wilo-CronoTwin-DL-E (11-22 kW), Wilo-CronoBloc-BL-E (1,5-22 kW)

Article Number 2234256
Edition 2024-02
Number of pages 328
Language de, en, fr, nl
PDF (21 MB)

Wilo-CronoLine-IL-E (11-22 kW), Wilo-CronoTwin-DL-E (11-22 kW), Wilo-CronoBloc-BL-E (1,5-22 kW)

Article Number 2234255
Edition 2024-02
Number of pages 88
Language en
PDF (13 MB)

Consulting manual

Glanded pumps, single-stage, single-volute

Article Number Wilo515021
Edition 2021-12
Number of pages 24
Language en
PDF (7 MB)

Group Statement

Group Statement REACH

Edition 2021-05
Number of pages 5
Language language neutral
PDF (327 KB)

Reference sheet

Reference Sheet (English) - Power industry - Power Station Anpara, Anpara, India, 2014

Number of pages 2
Language en
PDF (2 MB)

Reference Sheet (English) - German Department for Urban Development and the Environment (BSU), Hamburg, Germany, 2013

Number of pages 2
Language en
PDF (4 MB)
Product selection
Number of results: 155
Nominal flange diameter
Port-to-port length L0
340 … 800 mm
[155]
productversion
Mechanical seal