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[Cornbinder89]

Pressures without air temp readings are fairly meaningless. 200 shows a condensing temp of 130, great if it is 110 deg not so good if it 80 degs.
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[Cornbinder89]

https://forum.aircondition.com/forum...pressure-chart
Might help, found in the references section....

[Cornbinder89]

Check your connection, the low side can't be 90 and the outlet temp 40, not possible. 90 psi is like 83 deg F

[Cornbinder89]

Ok, that is different, if the orifice is in the condenser then it will start boiling in the line, and cooling it.

[Cornbinder89]

The line from the condenser to the evap in a normal system should not be cold, is this one with the orifice tube in the condenser?, if not, it looks like...

[Cornbinder89]

The K's, doing a little "logging" on the property.
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[Cornbinder89]

I have 2 K-7's (IHC trucks from the 40's) both have the oil bath A/C. I have a Dart with a real old 6-71 Detroit with a triple oil baths.
The British...

[Cornbinder89]

Oil bath air cleaners do a better job cleaning the air than a new paper filter, Paper gets a very slight advantage in cleaning once it gets some time...

[Cornbinder89]

Don't leave the gauges connected when not needed, they can leak, Pop them on when working on the system and remove. Put them back on if you need to test...

[Cornbinder89]

Some valves don't "play well" with some hose ends. I've had that happen esp with retro fit adapters. I've heard that some GM products use a...

[Cornbinder89]

High side pressure is the temp of the refrigerant at the point of condensing. Look in the ref section of this site for 134a temp/pressure chart.
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[Cornbinder89]

No, it shouldn't. -28 psi? we'd all be dead! 28 inch's ok. Your pressures are a bit high, with the slow intake of refrigerant, it make me wonder if your...