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STAINLESS HORIZONTAL
MULTI-STAGE PUMP(MHI)
Installation, Operation, and Maintenance Manual
♣ Before installing and operating the pump, the Safety Instructions must be
thoroughly read for the proper use of the pump.
♣ Before installation, this manual should be completely studied. / Read this
manual completely before any work on your unit.
♣ Keep this manual handy for future reference.
♣ Product warranty is attached to this manual.
♣ ATTENTION: To keep the pump at top efficiency, this manual
should be thoroughly studied.
Models
MHI202E
MHI405I/P
MHI203M, E, I/P
MHI406G/P
MHI205M, E
MHI802M, I/P
MHI206M, E
MHI803I/P
MHI402M, E, I/P
MHI805I/P
MHI403M, E, I/P
MHI1602I/P
MHI404M, E
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Table of Contents
Related Manuals for Wilo MHI202E
Summary of Contents for Wilo MHI202E
- Page 1 STAINLESS HORIZONTAL MULTI-STAGE PUMP(MHI) Installation, Operation, and Maintenance Manual Models MHI202E MHI405I/P MHI203M, E, I/P MHI406G/P MHI205M, E MHI802M, I/P MHI206M, E MHI803I/P MHI402M, E, I/P MHI805I/P MHI403M, E, I/P MHI1602I/P MHI404M, E ♣ Before installing and operating the pump, the Safety Instructions must be thoroughly read for the proper use of the pump.
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Page 2: Purchasing Our Pump / Features
▶ Improper operation not outlined in this manual may cause defects or physical damage that users are liable for. ▶ The WILO Pumps Customer Service Department is available for customers to ask any questions and to give an advice on errors on this manual. Call our dealers or headquarter. -
Page 3: Technical Description
10.8A MHI402M 1Ph, 220V, 60Hz 0.75kW 4.6A MHI403M 1Ph, 220V, 60Hz 1.1kW 8.4A MHI404M 1Ph, 220V, 60Hz 1.5kW 10.8A MHI202E 1Ph, 230V, 50Hz 0.55kW MHI203E 1Ph, 230V, 50Hz 0.55kW MHI205E 1Ph, 220V, 50Hz 1.1kW 5.8A 1Ph, 220/230V, 50Hz 1.1kW 5.5A... -
Page 4: Table Of Contents
CONTENTS Thank you for purchasing our pump. Follow the recommended instructions in this manual. Thank you for purchasing our pump / Features ..2 Safety Instructions ......5 Transportation and Installation ..6~7 Installation ........8~9 Usage ......... 10~11 Maintenance ........12 Dimension / Parts name .... -
Page 5: Safety Instructions
SAFETY INSTRUCTIONS These instructions contain important information which must be followed when installing and operating the pump. These operating instructions must therefore be read before assembly and commissioning by the installer and the responsible operator. Both the general safety instructions in the "Safety precautions" section and those in subsequent sections indicated with danger symbols should be carefully observed. -
Page 6: Transportation And Installation
TRANSPORTATION AND INSTALLATION WARNING! Before installation, repair or removal ● Install a breaker of electric leakage ● of the pump, the power supply must be of under 30mA of rated sensitivity disconnected. to prevent electric shock. Breaker Breaker The power cord must not be Pay special attention to extensions of the power cord. - Page 7 TRANSPORTAION AND INSTALLATION CAUTION! Minimize the number of elbows to prevent water leakages in the piping ● and to decrease water resistance. Gas Pipe Connect the earth wire before ● operation to prevent electric shock when the electric insulation is faulty. Earth wire Never get the power plug strained NOTE!
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Page 8: Installation
운반・설치상의 주의사항 INSTALLATION Installation process - The pump should be installed indoors. In case of installing outdoors, set eaves to avoid exposure to wind and rain, and prevent the pump from freezing. Piping ATTENTION! - An elbow close to the pump suction flange should be avoided. Abnormal noise and vibration may occur. - The piping should be adequately supported on both sides to reduce mechanical stress on the pump - Make the piping run as short as possible and minimize the number of elbows - Attach a strainer for filtering foreign objects to the end of the suction piping. - Page 9 운반・설치상의 주의사항 INSTALLATION CAUTION! In winter, install protections against cold weather. When the pump remains inactive for a long time at temperatures lower than 0°C, the pump body must ● be completely empty through the drain valve to prevent possible cracking of the hydraulic components. Bury the horizontal piping at least 30cm under ground.
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Page 10: Usage
운반・설치상의 주의사항 USAGE WARNING! To prevent a fire, never wrap the motor of the pump head in a blanket or a cloth ● to prevent freezing in cold weather. The customers are liable for any damage caused by improper wrapping. CAUTION! Never conduct a shut-off operating under dry running condition ●... - Page 11 운반・설치상의 주의사항 USAGE Piping The suction pipe should be larger than the discharge pipe. Make the piping run as short as possible and minimize the number of elbows. The piping should be adequately supported on both sides to reduce mechanical stress on the pump. * Install a stop valve on the suction side and the discharge side of the pump.
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Page 12: Maintenance
운반・설치상의 주의사항 MAINTENANCE ● The Pump is almost maintenance free ● During the running-in period, there may be some dripping from the axial face seal. Should a more significant leak occur as a result of substantial wear, have the axial face seal replaced by a specialist. ●... -
Page 13: Dimension / Parts Name
DIMENSION DIMENSION (mm) Model Ø Ø MHI202 109.5 1" 1" MHI203 109.5 1" 1" MHI205 157.5 1" 1" MHI205 157.5 1" 1" MHI206 181.5 1" 1" MHI402 109.5 1 1/4" 1" MHI403 109.5 1 1/4" 1" MHI404 157.5 1 1/4" 1"... -
Page 14: Specification / Performance Curv
10.4 / 6.0 MHI1602I/P 9.3 / 5.4 PERFORMANCE CURVE MHI-2 Series MHI-8 Series ❶ MHI202E ❷ MHI202M, I/P ❶ MHI802E ❷ MHI802M, I/P ❸ MHI203E ❹ MHI203M, I/P ❸ MHI803M, I/P ❹ MHI804E ❺ MHI205E ❻ MHI206E ❼ MHI205M,I/P ❽ MHI206M,I/P ❺... -
Page 15: Trouble Shooting
운반・설치상의 주의사항 TROUBLE SHOOTING (PUMP) Trouble Cause Trouble shooting Connections are faulty. Tighten loose terminals and repair damaged wire. Broken power cord Replace the cord. Motor malfunction Fix or change the motor. The motor does not Low voltage In case of lower than regulated voltage, contact an run. - Page 16 P/NO. : 3103099 (Rev.2) July., 2021 Printed in Korea. The leaflet must be given to the end user and be left on site. ※...
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