The data, information and descriptions, and the technology described herein are the exclusive intellectual property of Ecotechnics S.p.A. and constitute industrial
secrets. Said information is communicated in strict confidentiality; said information may be used only for the purpose for which it is communicated; said information
may not be divulged, communicated, or revealed to third parties and/or reproduced by any means for any reason whatsoever; said information is protected under
applicable Italian competition and industrial property law.
Service manual VA500-VA750 ed.1 ver.5.05 [MANU360.SA0].doc pag.3 - 18/10/2005
INDEX
INDEX...............................................................................................................................3
INTRODUCTION..............................................................................................................5
PREPARATION FOR REMOVAL AND DISASSEMBLY............................................................................5
REPLACEMENT PARTS ............................................................................................................................5
CHECKING THE CONNECTIONS .............................................................................................................6
OPERATING CYCLE .......................................................................................................7
RECOVERY-RECYCLING PHASE.............................................................................................................7
VACUUM PHASE........................................................................................................................................8
FILLING PHASE..........................................................................................................................................8
THE MACHINE.................................................................................................................8
BASIC COMPONENTS...............................................................................................................................8
CONTROLS AND CONTROL SYSTEM .....................................................................................................9
CONTROLS AND CONTROL SYSTEM...................................................................................................10
FUNCTION SELECTOR KEYBOARD......................................................................................................11
STATUS AND ALARM PANEL .................................................................................................................12
ROUTINE MAINTENANCE ............................................................................................13
FILLING THE MACHINE BOTTLE............................................................................................................13
VACUUM PUMP .......................................................................................................................................13
M.1) OIL TOP-UP..................................................................................................................................................13
M.2) OIL CHANGE ................................................................................................................................................13
M.3) DECONTAMINATION (ONLY MODEL “A”)...................................................................................................14
REPLACING THE DRYER FILTERS........................................................................................................15
FILLING THE NEW OIL TANK..................................................................................................................15
EMPTYING THE USED OIL TANK...........................................................................................................16
SPECIAL MAINTENANCE .............................................................................................17
BOTTLE SCALE CALIBRATION ..............................................................................................................17
ELECTRONIC VALVE CLEANING OR SUBSTITUTION.........................................................................18
CHANGING THE UNITS OF MEASURE (KGÆLBS OR LBSÆKG)........................................................18
TEST OF THE MACHINE...............................................................................................18
TROUBLESHOOTING ...................................................................................................19
FULL BOTTLE ALARM.............................................................................................................................19
EMPTY BOTTLE ALARM..........................................................................................................................19
SERVICE ALARM .....................................................................................................................................19
HIGH PRESSURE ALARM.......................................................................................................................19
NO DISPLAY WHEN MAIN POWER SWITCH IS ON..............................................................................19
FLUCTUATION OF THE READING OF THE REFRIGERANT................................................................19
VACUUM PUMP DOESN’T START..........................................................................................................19
VACUUM PUMP RUNS, BUT LOW SIDE GAUGE DOES NOT REGISTER AN APPROPRIATE
VACUUM...................................................................................................................................................20
THE MACHINE DOESN’T FINISH THE REFILLING................................................................................20
THE MACHINE DOESN’T REFILL THE OIL ............................................................................................20
THE MANOMETERS DON’T READ THE PRESSURE OF THE A/C SYSTEM.......................................20
PROBLEMS DURING THE DOWNLOAD OF THE SOFTWARE.............................................................20
SCALE DOESN’T READ THE WEIGHT...................................................................................................20
GAIN-OF-WEIGHT IMPLIES READING DECREASE OF THE SCALE...................................................21
THE MACHINE DOESN’T FINISH THE RECOVERY ..............................................................................22
ALARM MESSAGES......................................................................................................23
ER02..........................................................................................................................................................23
ER01..........................................................................................................................................................23
HIGH PRESSURE LED.............................................................................................................................23
BOTTLE EMPTY LED..............................................................................................................................23
FULL BOTTLE LED...................................................................................................................................23
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