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Fini ROTAR PLUS 20, Manual

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Rotar Plus 20-25 Easytronic - Cod.197AA2702 - Edition 00 01/2004

GB

2

SYMBOLS ON THE COMPRESSOR

The compressor has several labels to highlight possible danger and give recommendations on what to do during machine

operation or in special situations.

Please comply with these indications.

SAFETY INDICATIONS

GENERAL

•

Rotary compressors are intended for heavy continuous industrial use. They are especially suitable for industrial applications

requiring high air consumption for a long time.

•

The compressor should be run and operated only in compliance with the indications given in this manual. Safely keep this

manual in a known and easily reachable place for the whole working life of the compressor.

•

A supervisor shall be appointed in the company, in which the compressor is installed. He/she shall be responsible for

compressor inspections, adjustments and maintenance. Should a substitute be appointed for the supervisor, he/she shall carefully

read the user’s guide and all possible comment on service and maintenance carried out so far.

SYMBOLS USED IN THE MANUAL

Some  symbols  are  used  to  highlight  danger  situations,  give  recommendations  or  information.  These  symbols  are  usually

positioned next to the text, a figure or at the top of a page (in this case they refer to all subjects dealt with in that page).

Carefully read symbol meaning below.

CAUTION!

Important  description  on  service,  dangerous

situation, 

safety, 

accident 

prevention

recommendations and/or very important information.

STOP MACHINE!

All operations to be strictly carried out only after

stopping the machine.

POWER OFF!

All operations to be strictly carried out only after

powering off the machine.

SPECIALIZED PERSONNEL!

All  operations  to  be  strictly  carried  out  only  by

specialized technician.

Danger! Hot!

Danger! Electric shock!

Danger! Hot gas or harmful gas within working

area

Danger! Pressurized container

Danger! Mechanical moving parts

Caution! Maintenance works in progress

Prohibited!  Do  not  open  doors  during

compressor operation

Prohibited!  Press  emergency  button  for

compressor immediate stop. Do not use line knife

switch.

Prohibited!  Do  not  use  water  on  electric

equipment to extinguish fire.

Compulsory!  Read  instructions  for  use

carefully.

Summary of Contents for ROTAR PLUS 20

Page 1: ...facturers f Products can be delivered to the Manufacturer for servicing purposes only after prior authorization by the very Manufacturer The Manufacturer shall decide at their discretion whether authorization can be granted or require an Authorized Service Center to take on servicing In any case products shall be delivered free of any charge and will be returned to the Customer on ex factory basis...

Page 2: ...and maintenance carried out so far SYMBOLS USED IN THE MANUAL Some symbols are used to highlight danger situations give recommendations or information These symbols are usually positioned next to the text a figure or at the top of a page in this case they refer to all subjects dealt with in that page Carefully read symbol meaning below CAUTION Important description on service dangerous situation s...

Page 3: ...the maintenance schedule specified in the user s guide WHAT NOT TO DO Do not touch inner parts and pipes as they are very hot during compressor operation and stay hot for a certain time after compressor stop Do not position inflammable or nylon objects or cloths close to and onto the compressor Do not move the compressor when the tank is under pressure Do not operate the compressor if the power ca...

Page 4: ...llection centres for disposal PLACEMENT AND INSTALLATION fig 2 Upon installation make sure that the chosen place is in compliance with all prevailing national safety standards and meets the following requirements low percentage of dust suspended in air shop must be suitably sized and well ventilated so that room tem perature never exceeds 40 C when the compressor is working If this is not the case...

Page 5: ...24 50 60 Electrical box protection class IP 54 54 54 54 54 54 Motor insulation class F F F F F F Full load current A 31 31 31 36 36 36 Starting load A 70 75 73 98 104 107 Max Start up per hour n 10 10 10 10 10 10 Ambient limit temperature C 50 50 50 50 50 50 Noise level at 1 m Cagi pneurop dB A 70 70 70 71 71 70 3URWHFWLRQ GHYLFHV Max compressor temperature C 110 110 110 110 110 110 Min oil temper...

Page 6: ...led loadless cycle starts blinking LOADLESS message is displayed once loadless cycle is over compressor stops and off message is displayed 8 Emergency stop switch to stop compressor only in case of actual need 9 Functioning diagram maintenance operations WORKING TIMES Automatic mode The compressor operation is controlled by the pressure transducer which stops the machine when the max pressure valu...

Page 7: ...ission using RS485 and automatically disable transmission on RS232 12 Pressure sensor service password enables the 4 20 mA input to which the pressure sensor is connected With this parameter activated the pressure measurement is displayed To display machine operation time press the key the display will revert to the pressure measurement automatically after 20 seconds Enabling this parameter the ex...

Page 8: ...t be silenced by the service technician who when carrying out maintenance operations will select the item Pre alarm hours from the menu and reset the value as described under the heading Modifiable parameters point 1 9 Separator pressure switch Alarm trips in the event of the separator pressure switch contact opening The compressor locks up To silence the alarm first reset the separator pressure s...

Page 9: ...l mixture which ensures the seal and the lubrication of the moving parts of the compressor The air oil mixture returns to the tank 6 where the air is pre separated through spinning and is finally separated from the oil by the oil separator filter 13 From the tank 6 only air comes out which reaches the radiator 11 through the tube 15 and the mains through the cut off cock 16 FIRST START UP Before s...

Page 10: ...ey would let dust into the compression unit Replace the air filter when you have cleaned it four times Clean the radiators The radiator is highly efficient with a limited clogging degree However in case of abnormal overheating or at least once a year a check for filter clogging is recommended To clean the radiators proceed as follows remove the rear and upper panels of the pressurized chamber posi...

Page 11: ...ion rules in force EVERY 2000 OPERATING HOURS Check drive belt tension Fig 12 Use a frequency tester to carry out this check Proceed as follows Move tester microphone closer to the belt about at mid length and hit the belt with a wrench Read value on tester Stretch or slacken the belt if the value is different from values indicated in the table Higher value slacken Lower value stretch To adjust pr...

Page 12: ... Change the drive belt as follows fig 12 2 Tighten the screw 1 turning it clockwise with a hexagon head wrench until you feel that the belt is slackening and comes off easily 3 Install the new belt and set the screw 1 back to its original position turn clockwise Leave belt slightly slack Check frequency value as described on page 11 1 Test 12 ...

Page 13: ...ignal Oil separator filter clogged Min pressure valve does not clo se perfectly Voltage too low Shop too cold Leakage from tubes Leakage from front compressor flange Remedy Check voltage press Reset and start once again Check motor absorption and check relay settings If absorption is OK press Reset and start once again Check oil drainage tube and non return valve Check oil level and drain some if ...

Page 14: ... 500 mA 500V KM1 Line contactor 18 5 kW 11 kW 18 5 kW 11 kW KM2 Delta contactor 18 5 kW 11 kW 18 5 kW 11 kW KM3 Star contactor 15 kW 7 5 kW 15 kW 7 5 kW FR Thermal relay 28 40 17 22 28 40 20 25 YV Solenoid valve SP1 Minimum pressure switch SP2 Pressure switch for oil separator filter SP3 Pressure switch for air filter BP Pressure transducer 0 16 bar D Electronic controller ST Thermal feeler for el...

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