Medana CH3-LE
Multistage monobloc pump
Efficient, functional and reliable horizontal multistage pump
- 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 of up to +50 °C
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Product family Wilo-Medana
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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 60034-30-2Application
- Water supply and pressure boosting
- Industrial circulation systems
- Process water
- Closed cooling circuits
- Heating
- Washing systems
- Irrigation
Equipment/function
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
Type key
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 | |
N =Captive nuts |
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
- IP rating: 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
Scope of delivery
- Medana CH3-LE multistage centrifugal pump
- Installation and operating instructions
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