The data, information and descriptions, and the technology described herein are the exclusive intellectual property of Snap-on Climate Solutions S.r.l. 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 Cinquecento12 (VA21) [MANUY2V.SB0] ed.1 ver.0.1.doc pag.78 - 09/11/2021
TEST I/O
From CALIBRATION, select TEST I/O, the following screen is displayed:
Activate the solenoid valve, one at a time; check the excitation of the valve directly on the
machine. Activate the compressor and the vacuum pump individually, checking the operation
of both.
Attention the compressor must be activated with caution, it must be switched on for at
least 10 seconds, it must not be switched off and on again immediately, if switched off,
wait at least 10 seconds before switching it on again.
Never activate EV4 and vacuum pump with pressures above 0.2 bar.
Before going out, check that all the solenoid valves, the compressor and the pump are
deactivated
Press ESC for exit, the CALIBRATION menu will be displayed
Tank Cell 0
Tank Temperature 0
AC Pressure 0
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