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.77 - 09/11/2021
A/C PRESSURE (manual)
From CALIBRATION, select A/C PRESSURE, the following screen is displayed:
Use the service hoses by connecting them with appropriate attachments to a digital pressure
gauge having the possibility of connecting via an external valve to an external nitrogen bottle,
open the quick couplings and the tap connected to the outside so that everything is at
atmospheric pressure . Reading 0 bar on digital pressure gauge, open the valves.
Select Min, verify that the value is 0 g (otherwise use the keypad) then press ENTER to confirm
Min.
Close the tap that puts everything in communication with atmospheric pressure. Open the
external nitrogen bottle and adjust the reducer to reach a pressure value between 8 and 12 bar
read on the digital pressure gauge.
Always with the taps open on the machine, close the valve of the external bottle. Making
stabilize the pressure reading on the digital gauge.
Select Max and quickly write the value shown on the digital pressure gauge. Finally press
ENTER to return to calibration menu.
Press ESC for save the values.
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