CronoTwin-DL-E  

 

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

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

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

  • Energy savings due to integrated electronic control
  • Simple operation with red-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

  • Minimum Efficiency Index (MEI) ≥ 0.4
  • Permissible temperature range -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
  • Material(s) 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
  • Optional features Version -R1 without differential pressure sensor; L1 variant with bronze impeller (at additional charge); H1 variant with housing made of spheroidal cast iron (at additional charge); S1/-S2 variant with special mechanical shaft seal (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)