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Author Topic: A/C System Diagnosis  (Read 12388 times)

Offline Icehouse

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    • hvacbob
A/C System Diagnosis
« on: June 03, 2009, 10:50:06 AM »

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NATE, NCCER, PHCC,HVAC Certified Instructor
Member RSES, US Army Refrigeration Specialist(Retired), Former Refrigeration Teacher NYC Board of Ed.
a tragedy has happen to me : http://web.me.com/zenzoidman/Bobice/

Offline JWWebster

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Re: A/C System Diagnosis
« Reply #1 on: June 03, 2009, 08:27:05 PM »
I am sure those are nice >maybe one fugging day I will git to read it. is it just me or do peeps just make it imfuggingpossible to do something on this here internet so that yall can just update yer machines? And do yall bend over and let em just do what they got to do? This system is interesting but pissy as hell. Al Gore's imternet can kiss my ass.
« Last Edit: June 06, 2009, 12:02:46 AM by JWWebster »
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About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair

Offline AJ

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Re: A/C System Diagnosis
« Reply #2 on: June 03, 2009, 08:32:41 PM »
I don't think Icehouse doc files are working for anyone.

I know that I can not view them myself.

Is anyone able to download and view them?
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Offline Icehouse

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Re: A/C System Diagnosis
« Reply #3 on: June 03, 2009, 09:46:08 PM »
Quote from: AJ on June 03, 2009, 08:32:41 PM
I don't think Icehouse doc files are working for anyone.

I know that I can not view them myself.

Is anyone able to download and view them?
  :)Yes
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NATE, NCCER, PHCC,HVAC Certified Instructor
Member RSES, US Army Refrigeration Specialist(Retired), Former Refrigeration Teacher NYC Board of Ed.
a tragedy has happen to me : http://web.me.com/zenzoidman/Bobice/

Offline Al Capone

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Re: A/C System Diagnosis
« Reply #4 on: June 03, 2009, 09:52:29 PM »
Can't view them here, thought it was just me.
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Offline maypo52

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Re: A/C System Diagnosis
« Reply #5 on: June 04, 2009, 10:27:02 AM »
Works for me :) O0
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My philosophies:

If it ain't broke, don't fix it and When all else fails RTFM (read the "funny" manual)

Offline Al Capone

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Re: A/C System Diagnosis
« Reply #6 on: June 04, 2009, 10:29:36 AM »
What program are you using to read these .doc files?
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Offline maypo52

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Re: A/C System Diagnosis
« Reply #7 on: June 04, 2009, 10:45:54 AM »
I'm using MS Word. But you can also open with Wordpad
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My philosophies:

If it ain't broke, don't fix it and When all else fails RTFM (read the "funny" manual)

Offline harry

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Re: A/C System Diagnosis
« Reply #8 on: June 05, 2009, 06:51:04 PM »
I haven't been able to open the Icehouse .doc files.
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Offline JWWebster

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Re: A/C System Diagnosis
« Reply #9 on: June 05, 2009, 07:17:32 PM »
Bobby why not just copy and paste your stuff here, fergit all that fancy shat. Er better yet just type some stuff into notepad and then hit select, copy and toss it into a big old space provided by our fearless leader aj called a New topic in HVAC.   :rofl:

[attachment auto deleted after 5 years by admin]
« Last Edit: June 05, 2009, 07:21:06 PM by JWWebster »
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May the hinges of our friendship
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About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair

Offline JWWebster

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Re: A/C System Diagnosis
« Reply #10 on: June 05, 2009, 07:22:56 PM »
Or better yet just type some stuff in the box and we will look at the content not the grammar my amigo.
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May the hinges of our friendship
        never grow rusty.

About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair

Offline maypo52

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Re: A/C System Diagnosis
« Reply #11 on: June 05, 2009, 11:14:24 PM »
Here you go. Enjoy ;D

Diagnosing Air Conditioning System Problems

Superheat and Subcooling:

When running properly, the evaporator temperature and superheat should be within manufacturer’s specifications. This ensures that the compressor is protected from liquid flood-back and overheating as is common when high superheat is present.
Typically the condensers performance is effected by proper subcooling. If no manufacturer’s literature is available, rule of thumb is 10 degrees of subcooling on low SEER rated units and 15 degrees subcooling on the higher SEER rated units.

How to measure Superheat:

Measure the suction pressure at the inlet of the compressor.
                   This will give you evaporator saturation temperature

Convert the pressure to temperature using a P/T chart

Measure the suction line temperature six inches from the compressor
                   Use a digital type thermometer only

Subtract suction line temperature from saturation temperature, the difference is Superheat

How to measure Subcooling:

Measure the high side pressure at the liquid line service valve
                    This will give you the condenser saturation temperature

Convert the pressure to temperature using a P/T chart

Measure liquid line temperature at condenser outlet
                    Use a digital type thermometer only

Subtract the liquid line temperature from the saturation temperature, the difference is Subcooling

Ideally, systems should maintain a “delta t” (temperature difference) of 20 degrees between indoor and outdoor temperature.
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My philosophies:

If it ain't broke, don't fix it and When all else fails RTFM (read the "funny" manual)

Offline JWWebster

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Re: A/C System Diagnosis
« Reply #12 on: June 05, 2009, 11:53:42 PM »
Otay thats fugged up :D Whatever
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May the hinges of our friendship
        never grow rusty.

About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair

Offline JWWebster

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Re: A/C System Diagnosis
« Reply #13 on: June 05, 2009, 11:54:36 PM »
Wad he say? :D
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May the hinges of our friendship
        never grow rusty.

About the icons: The beer is tip link, if a tech saves ya some money buy em a 6 pack. The small green square=personal message. The green dot is a link to my web page on appliance repair

Offline Icehouse

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    • hvacbob
Re: A/C System Diagnosis
« Reply #14 on: June 06, 2009, 08:45:33 AM »
 ??? I e mailed a copy to AJ, guess he could not open it either.
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NATE, NCCER, PHCC,HVAC Certified Instructor
Member RSES, US Army Refrigeration Specialist(Retired), Former Refrigeration Teacher NYC Board of Ed.
a tragedy has happen to me : http://web.me.com/zenzoidman/Bobice/

Offline AJ

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Re: A/C System Diagnosis
« Reply #15 on: June 06, 2009, 12:36:19 PM »
Quote from: Icehouse on June 06, 2009, 08:45:33 AM
??? I e mailed a copy to AJ, guess he could not open it either.

That's correct.
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