So you need a signal generator that varies the signal to call for more or less cold from the compressor? Sounds like a raspberry pi project, with a simple dial and maybe a display to show the signal (I'd make the display go from 1 to 11).
Sep 17, 2020 9:43:30 PM Karl Wittnebel via Mercedes <mercedes@okiebenz.com>: > Not to get too far into this but I have an om648 transplanted into a w123 > wagon. The AC compressor is variable displacement fed by a pwm signal. It > is not hooked up for this reason. > > Can anyone think of a way to interface that compressor to a regular > thermostat? No clutch involved. > > An alternative would be to find a clutched compressor with the identical > mount and form factor. > > Someone must make an aftermarket control solution for this type of > compressor, though. Maybe I can figure out what the ecu uses for input > signals and pirate some factory sensors from a 2006 w211 or whatever the > original chassis was to mount in the 123 and drive the factory ecu through > the oem wiring harness to the compressor. > > Thanks > Max Dillon Charleston SC _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
