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Old 06-24-2005, 06:21 PM
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The purpose for each individual refrigerant using unique fittings is an attempt to prevent contaminating recovered refrigerant. This is not usually a problem for the DIYer because they usually simply violate the law and vent it. It is a HUGE problem for those of us with recovery machines because if refrigerant is contaminated, we not only lose the refrigerant but have to pay big bucks to have it disposed of.

On the 124 car the automatic climate control system regulates the vent temp to keep it no lower than 38 degrees. Unless you do something on the sensor and control side of things you will not get it below 38. As pointed out by a previous poster, taking it below this mark runs a high risk of freezing the evaporator anyway.

Good luck,
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