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Old 04-17-2015, 11:07 PM   #1
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Frozen fingers


Decided to make sure the AC was working before it actually gets hot here. It didnt. I went to check pressure and hooked up the guages. Pressure was good but when I unscrewed the hose, the schraeder valve stuck for a minute. I hurried up putting the cap on to stop it and nearly frostbit my fingers doing it . Question is, what kind of glove could a guy wear for protection and still be able to work ?
Next step was to check the thermostat and I found a bad connection. Tightened that and all is good.

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Old 04-18-2015, 05:28 AM   #2
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Frozen fingers


Leather for hose connection and disconnect.

Now it will be real fun taking that cap back off.

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Old 04-18-2015, 07:38 AM   #3
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Leather for hose connection and disconnect.

Now it will be real fun taking that cap back off.

Leather it will be. Its at the A coil. I can close the valves at the compressor and let the pressure bleed down. Then replace the valve. That valve was leaking when the A coil was new and I replaced it then. Is there a certain brand or supplier I need to look for to get something better ?
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Old 04-18-2015, 08:31 AM   #4
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No, I don't even look at the brand when I buy them.
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Old 04-18-2015, 09:02 AM   #5
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If it has a brass flare nut cap then tighten it down secure and forget it. You do not need to check pressures at the coil. Outside is the place. If it is not leaking then leave it alone is what I would do. Need refrig leak soap/gas leak detector not dishsoap to make sure it does not have a tiny leak now. NuCalgon is what I use. May have lost a ounce or more and need to have some added.

http://www.nucalgon.com/products/gas-leak-detectors
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Old 04-18-2015, 12:33 PM   #6
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How much refrigerant got out? Was it enough to affect operation?
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Old 04-18-2015, 06:06 PM   #7
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How much refrigerant got out? Was it enough to affect operation?

I dont think I lost much. I just got home and kicked it on. OUtside, it 80*F. Inside, 77*. Out the vents 55*. Only been running 10 minutes.
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Old 04-18-2015, 06:47 PM   #8
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Check it in another 10 minutes. Should be more then 12 degrees colder then the indoor temp.
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Old 04-18-2015, 06:49 PM   #9
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77 indoor - 55 supply = 22 Delta T. It is fine. 18-20 deg is normal, 22 great.
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Old 04-18-2015, 07:26 PM   #10
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Got to 75* that it is set for and shut off fairly quick. Going to be cool here, the next few days so it will not run much. I will check pressure at the port on the outside unit next time if its not getting the job done.
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Old 04-19-2015, 05:44 AM   #11
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77 indoor - 55 supply = 22 Delta T. It is fine. 18-20 deg is normal, 22 great.
LOL, it was a long day yesterday. Boy was my math off.

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