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Thread: Sensor for AC
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03-19-2015, 04:29 PM #1
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Sensor for AC
Not much central air here, and I wasn't sure what I was looking at here. There is some type of sensor bulb loosely clamped to the tubing just outside the air handler. Anyone know what it is, and why it is there?
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Jim Robinson
New Mexico, USA
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03-19-2015, 04:44 PM #2
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Re: Sensor for AC
TXV...
added in edit:
The original TXV was likely replaced. It would have been located on the evaporator.
The replacement TXV may not have fit or was just to much work to put it in the same place, so they put it outside the case. As long as it's the right size, should not make much difference, but it should be wrapped in insulation.
Last edited by Rick Cantrell; 03-19-2015 at 04:51 PM.
' correct a wise man and you gain a friend... correct a fool and he'll bloody your nose'.
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03-25-2015, 03:15 AM #3
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Re: Sensor for AC
It should also NOT be loosely clamped, it needs to be tight.
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03-25-2015, 06:24 AM #4
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Re: Sensor for AC
I thought I'd post this link for TXV:
How Thermostatic Expansion Valves (TXV) Work - AC Heating Connect
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Tom Rees / A Closer Look Home Inspection / Salt Lake City, Utah
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