Quote:
Originally Posted by lorainfurniture
If there was a restriction, you should be able to find it easily. Normally it will produce an ice ball, and you will have super high high side, and or super low low side.
My experience with mb Ac systems is that you should just charge it by weight and don't look at the gauges. My vague recollection of my 300e was that the pressures were high after about half the r12 was in. I just stuck to the scale and I had perfect Ac after.
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I agree Charging a system by other means than a recommended required Weight
is only charging to the systems limitations. Inefficient condenser , TX valve not fully opening. sensor out of speck. Vacuum??? if you don't use a vacu stat YOU ARE ONLY GUESSING Yes the gauge says you have a good vacuum , But in reality without a vac u stat you would be surprised at how much you could be off a SAFE vacuum.
Remember what the vacuum is doing . Not sucking crap out the system . Only lowering atmospheric pressure to allow moisture to BOIL off and out the system. If you want to blow the lines NITROGEN not your air compressor. AIR is Moisture it just doesn't mix.
Pressure test a home A/C with air . You will have a hole in the ground where it once used to be.
06-15-2016, 04:51 AM
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