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Additional
Installation, Operating and
Maintenance Instructions
Water Cooled Three-Phase Asynchronous Motors
with squirrel-cage rotor for low voltage applications
Translation
Type series
K21B/K23B
WE1B//W21B/W41B
Motors that comply with the Regulation 2005/32/EC
and the order No. 640/2009 receive the marking IEx
before the type designation, whereas x= 1,2,3 (acc. to
EN 60034-30). (Example IE1-K21R 132 S4)
Edition 07.2010
VEM-Ident-No. 73753 01en
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Summary of Contents for VEM K21B Series
- Page 1 Type series K21B/K23B WE1B//W21B/W41B Motors that comply with the Regulation 2005/32/EC and the order No. 640/2009 receive the marking IEx before the type designation, whereas x= 1,2,3 (acc. to EN 60034-30). (Example IE1-K21R 132 S4) Edition 07.2010 VEM-Ident-No. 73753 01en...
- Page 2 A careful installation of the motors on an exactly level support has to be ensured to avoid strain when tight- ening the machine. Machines that shall be coupled must be adjusted exactly. If possible elastic couplings shall be used. Edition 07.2010 VEM-Ident-No. 73753 01en...
- Page 3 If it is possible, that the motors are stored or operated below freezing point, freezing of the cooling water inside the motor must be prevented. Additionally, the motors must be protected against intensive sun radiation, e.g. by a protective roof. Edition 07.2010 VEM-Ident-No. 73753 01en...
- Page 4 The motors are intended for operation in closed cycle systems. From size 315 upwards the operation in open cycle systems is available as a special version. If an open cycle system shall be used, it is necessary to contact the manufacturer VEM motors GmbH. Motor handling If there is a possibility that the motors are stored or operated below the frost line, the freezing of the cooling water inside the motor must be prevented.
- Page 5 The connection is done according to the attached connection diagram. The anti-condensation heating has to be switched on only after disconnection of the motor. It shall not be switched on while the motor is in operation. Edition 07.2010 VEM-Ident-No. 73753 01en...
- Page 6 When disposing of the motors please observe applicable national law. In addition please take care that all oil and grease is disposed according to the ordinance of waste oils (Altölverordnung). They must not be contaminated with solvents, cold cleaners and paint residues. Edition 07.2010 VEM-Ident-No. 73753 01en...
- Page 7 For each motor the correct connection diagram is attached. The connection must be done accordingly. For the connection of auxiliary circuits please see the additional connection dia- gram, which is also attached. Edition 07.2010 VEM-Ident-No. 73753 01en...
- Page 8 Additional Installation, Operating and Maintenance Instructions (Translation) English Edition 07.2010 VEM-Ident-No. 73753 01en...
- Page 9 Additional Installation, Operating and Maintenance Instructions (Translation) English VEM motors GmbH Carl-Friedrich-Gauß-Straße 1 D-38855 Wernigerode phone: +49-(0)39 43-68-0 fax: +49-(0)39 43-68-21 20 email: motors@vem-group.com internet: www.vem-group.com Edition 07.2010 VEM-Ident-No. 73753 01en...
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