Wilo-Isar MODH1-E-1
High-quality pressure-boosting system with a compact design.
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Description
Integrated protection functions enable the Wilo-Isar MODH1E to provide reliable water supply for various applications at all times. The protection functions include overload protection, dry-running protection and low-water cut-out switchgear with automatic deactivation.
Furthermore, significant energy savings are achieved through pressure-loss-optimised hydraulics as well as optimal load adjustment.
The colour display enables optimal operating convenience by displaying plain text.
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Advantages
- Compact system with a multistage stainless steel high-pressure multistage centrifugal pump from the Medana CH3-LE series with integrated air-cooled frequency converters with a large control range
- Efficiency class IE5 and variable differential pressure Δp-v enable high efficiency
- Colour display with plain text, simple navigation and settings via rotary knob ensure easy installation and operation
- Integrated safety features like low-water cut-out switchgear (WMS) provide a high degree of operational reliability
- Quick integration into building automation via optional CIF module
- Components that come in contact with the fluid are suitable for drinking water applications.
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Technical Features
Design
Pressure-boosting system with one non-self-priming stainless steel high-pressure multistage centrifugal pump.
Application
- Fully automatic water supply and pressure boosting in inlet mode, either from the public water supply network or from a tank, for domestic, commercial, industrial and municipal applications (e.g. residential, office, administration buildings, hotels, hospitals, trades, industry, water supply companies).
- Pumps drinking water, process water, cooling water or other industrial water, which does not affect the materials used, neither chemically nor mechanically, and does not have any abrasive or long-fibre constituents.
Equipment/function
- 1 Medana CH3-LE pump per system
- Components that come in contact with the fluid are corrosion-resistant
- Electrogalvanised base frame with height-adjustable oscillation absorbers for insulation against structure-borne noise
- Stop valve on every pump on the suction and discharge sides
- Non-return valve, on the discharge side
- Pressure sensor, on the end pressure side
- Pressure gauge optional, on the suction side
- Pressure gauge, on the end pressure side
- Low-water cut-out switchgear
- Control via integrated frequency converter
Typekey
Example: Wilo-Isar MODH1-E-1-CH3-LE-204-EM-HS Isar Multistage pressure-boosting system MOD Commercial series H Pressure-boosting system with horizontal pumps 1 Product level (1 = entry, 3 = standard, 5 = premium) E Electronic frequency control 1 Number of pumps CH3-L Pump series 2 Rated volume flow [m3/h] of the single pump 04 Number of single pump stages EM Single-phase version HS With main switch Technical Data
- Mains connections:
- 3~400 V ± 10%, 50 Hz;
- 3~380/440 V ±10%, 60 Hz;
- depending on type also 1~230 V, 50/60 Hz (other versions on request)
- Max. fluid temperature: 50 °C (70 °C optional)
- Max. ambient temperature: 40 °C
- Operating pressure: 10 bar
- Inlet pressure: 6 bar
- Nominal connection diameter for end pressure side: R 2″/DN 100
- Nominal connection diameter inlet side: R 2″/DN 100
- Protection class: IP54
- Fuse on mains side: A, AC 3 according to motor power and EVU regulations
- Approved fluids (other fluids on request): Approved fluids are generally waters which do not attack the materials used, neither chemically nor mechanically, and do not contain any abrasive or long-fibre constituents.
- Cooling water
- Drinking and process water
Materials
Single pump:
- Impellers, stage chambers and pump housing made of stainless steel 1.4301/1.4404
- Shaft of stainless steel 1.4404
- EPDM gasket (EP851)/FKM (Viton)
- Mechanical seal made of tungsten carbide/carbon
- Bearing of tungsten carbide
- Pump support foot made of aluminium
Construction
- Base frame: electrogalvanised and with height-adjustable oscillation absorbers for comprehensive insulation against structure-borne noise; other versions on request
- Pipework: complete pipework made of stainless steel, suitable for the connection of all piping materials used in building services; the pipework dimensions must correspond to the overall hydraulic performance of the pressure-boosting system.
- Pump: One pump from the Medana CH3-LE series 2.., 4.., 6.., 10.., 16..; all pump components that come in contact with the fluid are made of 1.4301/1.4404 stainless steel.
- Valves: each pump is equipped on the suction and discharge side with a stop valve or with annular shut-off valves and a discharge-side non-return valve.
- Diaphragm pressure vessel: 8 l/PN 10 on the end pressure side with butyl rubber diaphragm, completely safe according to the food safety regulations; ball valve and drain and throughflow fitting according to DIN 4807 for test and inspection purposes
- Pressure sensors: 4 to 20 mA, one each on the suction and end pressure sides for pressure control by the integrated frequency converter.
- Pressure indication: Pressure gauge (ø 63 mm) on the end pressure side; additional digital display of the end pressure in the graphics display of the pump
- Controller: the control of the system is realised by the frequency converters integrated in the pump
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