my Superheat measurement setup...

Here is the temperature clamp and my multi meter Fieldmaster SC66. This instrument comes with a temperature probe, which I attached it with a Velcro tape to the suction line of the compressor.
Later I discovered a clamp with attached probe, it is very expensive...
I think its possible to make a clamp like this this on your own.
The total length of the clamp is 4.5 inches.
I would use a heat resistant silicon caulk to install the probe. The two plastic “shoes” must be heat resistant and are installed with heat resistant epoxy.
 

Note the clamp meter for the amp. draw of the compressor. I watch this instrument very carefully to avoid an overload of the compressor because a possible overcharge.

As a tip, I use a quick charge device, this converts the liquid into a vapor - it really saves a lot of time. The brand I use is “KWIK CHARGE”.

Here are some useful links to “SUPERHEAT” web pages.

http://www.achrnews.com/CDA/ArticleInformation/features/BNP__Features__Item/0,1338,12587,00.html

http://www.refrig.com/charge.html

http://www.obhc.com/maintenance.htm

http://www.achrnews.com/CDA/ArticleInformation/features/BNP__Features__Item/0,1338,8033,00.html

Everyone has a different approach to AC/R trouble shooting. Some start at the condensing unit, others go straight to the electrical, and many tailor their procedure to the complaint. Our quest was to find out which procedures were the fastest, easiest, and most accurate.
In short, the most efficient. The T.E.C.H. Method is not the ONLY right way to trouble shoot. It is just simply the BEST right way. by Gary R. Lloyd CMS
http://www.techmethod.com/

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