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INSTRUCTIONS 

8510223 P01-A     © Danfoss Commercial Compressors March 2006

Summary of Contents for Maneurop VTZ Series

Page 1: ...INSTRUCTIONS 8510223 P01 A Danfoss Commercial Compressors March 2006 ...

Page 2: ...C 3 4 7 8 1 1 8 1 3 8 1 5 8 1 5 8 1 5 8 d d d d 175ZA786 10 Installation Make always sure that there is no possibility of exhaust hot air by pass from the drive This will lead to overheating thermal trip of the inverter The wiring of a variable speed system is to be done in a very professional way The main precautions on assembly has to be done in relation with the present drawings Generally speak...

Page 3: ...moured Use the clamp from the accessory bag to connect the screen to the decoupling plate for control cables Motor cable must be screened armoured Use the accessory decoupling plate Make sure the earth wire is connected to the earth terminal on this plate and install the screened part of the motor cable as shown on the above drawings Earth wire and screen cable part must be earth connected on both...

Page 4: ...Drive frequency converters are delivered with a factory preset open loop control for compressor speed magement To switch from open loop to process loop cable signal connections have to be done has shown below The only parameters modifications are Load motor Parameter1 00 Configurationmode Process Reference Ramps Parameter 3 01 bar Parameter 3 02 1 bar Parameter 3 03 12 bar Parameter 3 10 suction p...

Page 5: ...t systems have been specifically reserved for these refrigerants and never used with other CFC HCFC refrigerants Use only clean and dehydrated refrigeration grade copper tubes as well as silver alloy brazing material Verify that all system components are appropriate use of refrigerant etc clean and dehydrated before being connected to the completed assembly Perform a check on the suction lines Hor...

Page 6: ...al for wiring fig 7 8 and 9 bases are that all control wires have to be of a screee ned design the cable for electrical motor supply has to be of a shielded design too Correct ear thing of the shield cover has to be done using the method shown on fig 8 and 9 every time this one has to be earthed on each end of the cables Distinct cable tray must be used for control and motor supply The frequency c...

Page 7: ...d qua lity this step may include an acid test humidity check spectrometer analysis etc whenever the oil becomes discolored Ensure that the circuit is leak tight Verify the proper operation of heat exchan gers and if necessary clean them Checkthecurrentdrawonthecompressormotor as well as proper voltage balance between phases Check that all electrical connections are still adequately fastened Make s...

Page 8: ...l are property of the respective companies Speerall Danfoss and the Danfoss logotype are trademarks of Danfoss A S All rights reserved use of a refrigerant or lubricant not approved by Danfoss Commercial Compressors anydeviationfromrecommendedinstructionsper taining to installation application or maintenance use in mobile applications boats trains trucks etc or under explosive atmospheric conditio...

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