Wilo-Medana CH3-LE
Efficient, functional and reliable horizontal multistage pump.
-
Description
The Wilo-Medana CH3-LE is the next generation of horizontal, multistage pumps equipped with a highly efficient IE5 EC motor, a new inverter and the proven Medana CH1 hydraulics.
It has comprehensive functionality thanks to integrated control modes and various functions such as dual pump management and dry-running detection.
With the CIF module, remote access and connection to networks and systems is possible. Thanks to the intuitive menu navigation on the 2″ LCD colour display and plain text, it is also easy to operate.
The compact and robust design allows both drinking water applications and use at ambient temperatures from -15 °C to +50 °C. In this way, it offers a very wide range of applications for the commercial sector.
-
Advantages
- Reduced energy consumption due to highly efficient IE5 EC motor, new generation converter and proven hydraulics
- Integrated control modes (dp-v, dp-c, p-v, p-c, n-cont, PID) and various functions such as dual pump management and dry-running detection
- Easy installation and commissioning thanks to 2″ LCD colour display, operating keys and plain text
- High transparency during pump operation due to visibility and setting of parameters in all control modes and functions
- Remote access and connectivity through CIF module
- Robust pump design due to stainless steel pump material
- Wider range of applications due to ambient temperatures from -15 °C to +50 °C
-
Technical Features
Design
Highly efficient, non-self-priming, high-pressure multistage centrifugal pump in horizontal design including electronically controlled EC motor with energy efficiency class IE5 in accordance with IEC 60034-30-2.
Application
- Water supply and pressure boosting
- Industrial circulation systems
- Process water
- Closed cooling circuits
- Heating
- Washing systems
- Irrigation
Equipment/function
-
- 2” coloured LCD display
- Wilo Green Button Technology and soft button with return function for menu navigation and pump setting
- Green LED indicates pump status
- Blue LED indicates that the pump is influenced externally via an interface
- Impellers, guide vanes and stage housings made of corrosion-resistant material
Operating modes
- Constant pressure p-c
- Constant differential pressure ∆p-c
- Variable differential pressure ∆p-v
- Constant speed n-c
- PID control
Analogue input
- IN (AI 1): Input sensor signal 4-20 mA, 0-10 V, 0-20 mA or 2-10 V
- IN (AI 2): Input setpoint 0-20 mA, 0-10 V, 4-20 mA, 2-10 V or input sensor signal 4-20 mA, 0-10 V, 0-20 mA or 2-10 V
Digital input IN (DI 1)
- Extern off
- Lack of water detection by binary input
Functions
- Max. pressure limit detection
- Min. pressure limit detection
- Lack of water detection by suction sensor
- Zero-flow test (open loop)
- No-Flow Stop (closed loop)
- Dry-running detection
- Volume flow calculation by using differential pressure sensor
- Pump kick
- Error and warning codes
- Overload protection
- Plug-in position for Wilo CIF-Modules PLR, LON, BACnet MS/TP, Modbus RTU, CANopen, Ethernet Multi-protocol (Modbus TCP, BACnet/IP) for connection to the building automation
Dual pump management (2 x single pumps)
- Main/standby operation
- Pump cycling main/standby operation after 24 hours or automatic fault-actuated switchover
- Wired connection via Wilo Net
Typekey
Example: Medana CH3-LE.407-1/E/1/10T Medana Multistage centrifugal pump CH3 C = Commercial series H = Horizontal pump Series level (1 = entry level, 3 = standard level, 5 = premium level) LE L = Long shaft E = Electronic control 4 Flow rate in m3/h 07 Number of impellers 1 Pump material 1 = Pump housing 1.4301 stainless stell + Hydraulics 1.4307 (AISI 304L) 2 = Pump housing 1.4409 stainless stell + Hydraulics 1.4404 (AISI 316L) E Gasket type E = EPDM V = FKM 1 Phases of power supply 1 = single phase 3 = three phases 10 Maximum operating pressure in bar T Connections T = Screwed connections Technical Data
- Electrical connection:
- 1~ 220 V …230 V (+/- 10%) 50 Hz/60 Hz; TN, TT, IT
- 3~ 380 V …440 V (+/- 10%) 50 Hz/60 Hz; TN, TT, IT
- Fluid temperature range:
- -20 to 120 °C with EPDM seals
- -20 to 90 °C with VITON seals
- Max. operating pressure: 10 bar
- Max. inlet pressure: 6 bar
- Protection class: IP55
- Nominal diameters of pipe connections: from G1” to G2” depending on temperature: +50°C
Materials
- Impellers, stage chambers and pump housing made of 1.4301/1.4404 stainless steel
- Shaft 1.4301 or 1.4404 stainless steel
- Seal EPDM/FKM (Viton)
- Mechanical seal: EPDM version: B-carbon/silicon carbide; FKM version: B-carbon/silicon carbide
- Bearing tungsten carbide/aluminium oxide
- Pump base aluminium
Accessories
- CIF module PLR for connecting to PLR/interface converter
- CIF module LON for connection to the LONWORKS mains network
- CIF module BACnet
- CIF module Modbus
- CIF module CANopen
- CIF module Ethernet
- Connection M12 RJ45 CIF Ethernet
- Differential pressure kit 4 – 20mA
- Relative pressure kit 4 – 20mA
- Downloads
