Wilo-CronoBloc-BL-E

Electronically controlled glanded single pump in monobloc design with flange connection and automatic power adjustment.

The pumping of heating water (in accordance with VDI 2035), chilled water and water-glycol mixtures without abrasive substances in heating, chilled water and cooling systems.

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
• 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
• Interface to twin-head pump communication

Safety functions

• Full motor protection with integrated trip electronics
• Access disable

Dual pump management (2 x single pump; Y-piece application only)

• 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)

• Permissible temperature range of -20 °C to +140 °C
• Minimum efficiency index (MEI) ≥ 0.4
• Mechanical seal for pumping water up to Tmax = +140 °C. Up to T ≤ +40 °C, a glycol admixture of 20 % to 40 % by volume is permissible. An alternative mechanical seal must be provided for water-glycol mixtures with a glycol content of > 40% to max. 50% by volume and a fluid temperature of > +40 °C to max. +120 °C or other fluids that differ from water. When using water-glycol mixtures, the use of an S1 variant with a corresponding mechanical seal is generally recommended.
• Mains connection
  • 3~440 V -5% +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 32 to DN 150
• Max. operating pressure 16 bar up to +120 °C, 13 bar up to +140 °C

• Pump housing and lantern: Standard: EN-GJL-250
• Impeller: Standard: EN-GJL-200; optional: Bronze CuSn 10, stainless steel 1.4408
• Shaft: 1.4122
• Mechanical seal: AQEGG other mechanical seals on request

Single-stage low-pressure centrifugal pump in monobloc design, with axial suction port and radially arranged discharge port with

• Mechanical seal
• Flange connection with pressure measuring connection R ¹/8
• Lantern
• Coupling
• Drive with integrated electronic speed control

• Pump
• Installation and operating instructions

• Variant …-R1 without differential pressure sensor
• ...-L1 variant with bronze impeller (at additional charge)
• …-L4 variant with stainless steel impeller (at additional charge)

• Supporting blocks for installation on a base
• IR-Monitor, Wilo-IR-Stick
• IF module PLR for connecting to PLR/interface converter
• IF module LON for connection to the LONWORKS mains network
• IF module BACnet
• IF module Modbus
• IF module CAN
• Control system VR-HVAC
• Control system CCe-HVAC
• Control system SCe-HVAC
• Differential pressure sensor (DDG)

• Permissible temperature range of -20 °C to +140 °C
• Minimum efficiency index (MEI) ≥ 0.4
• Mechanical seal for pumping water up to Tmax = +140 °C. Up to T ≤ +40 °C, a glycol admixture of 20 % to 40 % by volume is permissible. An alternative mechanical seal must be provided for water-glycol mixtures with a glycol content of > 40% to max. 50% by volume and a fluid temperature of > +40 °C to max. +120 °C or other fluids that differ from water. When using water-glycol mixtures, the use of an S1 variant with a corresponding mechanical seal is generally recommended.
• Mains connection
  • 3~440 V -5% +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 32 to DN 150
• Max. operating pressure 16 bar up to +120 °C, 13 bar up to +140 °C

• Pump housing and lantern: Standard: EN-GJL-250
• Impeller: Standard: EN-GJL-200; optional: Bronze CuSn 10, stainless steel 1.4408
• Shaft: 1.4122
• Mechanical seal: AQEGG other mechanical seals on request

Single-stage low-pressure centrifugal pump in monobloc design, with axial suction port and radially arranged discharge port with

• Mechanical seal
• Flange connection with pressure measuring connection R ¹/8
• Lantern
• Coupling
• Drive with integrated electronic speed control

• Pump
• Installation and operating instructions

• Variant …-R1 without differential pressure sensor
• ...-L1 variant with bronze impeller (at additional charge)
• …-L4 variant with stainless steel impeller (at additional charge)

• Supporting blocks for installation on a base
• IR-Monitor, Wilo-IR-Stick
• IF module PLR for connecting to PLR/interface converter
• IF module LON for connection to the LONWORKS mains network
• IF module BACnet
• IF module Modbus
• IF module CAN
• Control system VR-HVAC
• Control system CCe-HVAC
• Control system SCe-HVAC
• Differential pressure sensor (DDG)