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Subject Author Date
how to base superheat eg81650 08-25-2007
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Posted by -zero on August 29, 2007, 11:12 pm

> Thanks for the pat on the head. I use all of those except the clamp on
> thermometer. I use a temp probe, and somtimes an IR point and shoot
> thermometer.

Stormy,
Remember to only use the IR point and shoot thing when you
have a non-critical 5-10+ degrees of measurement to play with.
The emissivity will be all over the place with everything except flat
black. http://www.electro-optical.com/bb_rad/emissivity/matlemisivty.htm
If it's under $300.00, it's fixed/non adjustable at 0.9.

Use your temp probe along with something like this
http://toolmonger.com/category/manufacturers/wilton/
for line temps.

-zero



Posted by Stormin Mormon \(on backup com on August 30, 2007, 3:31 pm
Thanks. Very good reminder. I've got a temp probe for my VOM, that I can
tuck under the black wrap insulation.

--

Christopher A. Young
(Using backup computer. In a couple
days I will be back on my regular
email adress.)
.
.



Stormy,
Remember to only use the IR point and shoot thing when you
have a non-critical 5-10+ degrees of measurement to play with.
The emissivity will be all over the place with everything except flat
black. http://www.electro-optical.com/bb_rad/emissivity/matlemisivty.htm
If it's under $300.00, it's fixed/non adjustable at 0.9.

Use your temp probe along with something like this
http://toolmonger.com/category/manufacturers/wilton/
for line temps.

-zero




Posted by on August 30, 2007, 11:06 pm

> Thanks. Very good reminder. I've got a temp probe for my VOM, that I can
> tuck under the black wrap insulation.


Which will get you a shitty reading.



Posted by Zyp on August 27, 2007, 4:10 pm
.p.jm@see_my_sig_for_address.com wrote:
> wrote:
>
>> On Aug 25, 11:07 am, eg81...@gmail.com wrote:
>>> Does anyone out there know how to base superheat on 150ft+ line set?
>>
>> Hi, I have done A/C systems for 24 years and can tell you that thru
>> all the math every tech I saw as an apprentice used their hand to
>> feel the side of a semi-hermetic compressor's motor housing to feel
>> that the metal was cool until the end of the motor housing.
>> The suction line entering at the end of the motor, as refrigerant
>> travels accross the motor , any liquid flashes off cooling the
>> windings until the compressor cases start. at that point the cases
>> should be warm to the touch indicating that all liquid has flashed
>> off and we all know what liquid in a compressor can do.
>> After the math this is the final test for the correct superheat on a
>> semi-hermetic compressor.
>
> Holy shit. You complete and utter asshole. Who the hell
> taught you HVAC, your Daddy when you were 6 years old. maybe ?
>
>
>> Hermetic compressors should be slightly cool when you touch the top.
>> A/C Dale
>
> I bet you've over charged every compressor you're ever set a
> can of freon to.
>
>
> --
> Click here every day to feed an animal that needs you today !!!
> http://www.theanimalrescuesite.com/
>
> Paul ( pjm @ pobox . com ) - remove spaces to email me
> 'Some days, it's just not worth chewing through the restraints.'
> 'With sufficient thrust, pigs fly just fine.'
> HVAC/R program for Palm PDA's
> Free demo now available online http://pmilligan.net/palm/

Why my "daddy taught" me that if it's "sweat'n" back to the "pot" she's good
to go! ROFLMAO LOL

What was that statement I saw back some months ago here - ohh "beer can
cold!" LOL

I wonder if Telstra has come across a discharge gas cooled Tecumseh and is
willing to put his "hand on top" of it to see how cool it is. LOL

--
Zyp



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