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A/C Manifold Gauges and Black Death

FordF350 on Wed March 26, 2014 2:23 AM User is offline

Year: 2003
Make: Ford
Model: F-350
Engine Size: 6.0
Refrigerant Type: 134
Ambient Temp: 70
Country of Origin: United States

Long story short, last summer my fan clutch wires got trashed by the fan and my truck overheated - after that the compressor started cycling.

I added freon and never got around to fixing the leak. Finally, one hot Texas summer weekend, towing my boat, I ran the A/C, cycling and all, until it died (I know, I know).

I had Teflon in the orifice tube, so I am replacing every A/C component thanks to RockAuto (compressor, condenser, lines, evaporator, etc).

Here is my question: I used my a/c manifold gauge set to evacuate the system. What do I need to do to decontaminate them? I am about to just go buy a $50 Harbor Freight set just to be safe. Any thoughts?

Thanks,

Louis

HECAT on Fri March 28, 2014 10:26 PM User is offline

You can flush/purge your lines with a little liquid refrigerant, or an a/c flush; blow well to dry.

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FLUSHING TECHNICAL PAPER vs2.pdf 

Leggie on Mon March 31, 2014 12:51 AM User is offline

Quote
Originally posted by: HECAT
You can flush/purge your lines with a little liquid refrigerant, or an a/c flush; blow well to dry.
Pushing just enough vapor refrigerant to purge the air is de minimis, but the intentional release you described is a violation of Clean Air Act.

Edited: Mon March 31, 2014 at 12:51 AM by Leggie

HECAT on Mon March 31, 2014 2:56 PM User is offline

Intentional release was not described; only that a liquid refrigerant could be used to flush or purge the lines. How one does it properly, improperly, legally, or illegally is their business. Compliance is often full of "grey area". Please see EPA Fact Sheet "Permitted Releases" item # 4

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FLUSHING TECHNICAL PAPER vs2.pdf 

Leggie on Wed April 16, 2014 4:58 AM User is offline

Quote
Originally posted by: HECAT
Intentional release was not described; only that a liquid refrigerant could be used to flush or purge the lines. How one does it properly, improperly, legally, or illegally is their business. Compliance is often full of "grey area". Please see EPA Fact Sheet "Permitted Releases" item # 4

Purging there refers to removal of air from the hose rather than intentionally feeding more refrigerants than necessary for that purpose to use refrigerant as a solvent.

If it is not vented into the atmosphere, then it appears to be legal.

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