Author Topic: Freeze 12  (Read 7424 times)

Offline Icehouse

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Re: Freeze 12
« Reply #10 on: February 12, 2009, 08:42:41 AM »
Is eating a compressor hard on the teeth? :D
Harder on the wallet.  :'(
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 Earl Dryer

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Re: Freeze 12
« Reply #11 on: February 12, 2009, 09:14:17 AM »
Thank you Everyone, I use to do this type work 30yrs ago it was cut & dye,
R22 or R12 in most window units and freezer/refrig. Now there are so much
different stuff out there. When I was re certifying, the instructor was telling us that it is not recommended to do 134 conversion on small hermetic
system (OK in none sealed systems like automotive) because the cannot be
removed. There have been several theories of oil compatiblity with 134 some
say OK, some say NO-NO. I'm not going to convert, I was just asking if Freeze 12 was suitable to top off or charge over existing oil in these small
systems, because I didn't want to break my teeth on a compressor. I am
not going to stock a bunch of different refrigerant, 12,22,134 only, I'm a
small town repairman, if I run into anything else I send them to the big city.
FYI, after considerable research I found that Freeze 12 is compatible with
the oil in R12 systems and blends with the R12, it requires 90% of the charge recommended for R12. They recommend that the existing R12 be removed, when possible and recharging with total Freeze 12 because of the different dymanics of the gases. Thanks again

Offline Icehouse

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Re: Freeze 12
« Reply #12 on: February 12, 2009, 09:36:10 AM »
There is a class action lawsuit against the manufacturers of "Freeze 12", because unlike their claim it has a poor oil return.
This is what causes compressor failures.  :'(
This along with the fact of moisture problems is why the compressor manufacturers will not recognize it.  :tickedoff:
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: Freeze 12
« Reply #13 on: February 12, 2009, 08:24:18 PM »
Most of the time  the dang gas is gone or real low right. So I always pull out the remaining gas and  reclaim it in my recovery machine. Even if I don't feel like any is in there I still pump down the old ice box and reclaim the refrigerant remaining. When I have 0 pressure on the gauge I pull a good vacuum  till I get as close to -30 as possible. Then I shut it down and watch it for a few hours to see if it loses vacuum. If it holds I recharge. I think most folks don't take the time to do it right.
May the hinges of our friendship
        never grow rusty.

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Offline JWWebster

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Re: Freeze 12
« Reply #14 on: February 12, 2009, 08:25:51 PM »
Bob do you have any idea  what Hotshot is exactly?
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 and other general BS I love to post. The letter sends me email.
I love fan letters! LOL

Offline Earl Dryer

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Re: Freeze 12
« Reply #15 on: February 12, 2009, 09:44:00 PM »
Icehouse, that was the anwser I was concerned about, moisture and oil
functionality. 134a conversion is not recommended for the same reason.
Just bought a 30lb jug because I got no negative feedback here. Maybe I
can sell the crap to automotive shop or have hold harmless letter drawn up
to add life to the old boxes

Offline JWWebster

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Re: Freeze 12
« Reply #16 on: February 12, 2009, 09:55:36 PM »
Earl how much was it if I might ask?
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 and other general BS I love to post. The letter sends me email.
I love fan letters! LOL

Offline Icehouse

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Re: Freeze 12
« Reply #17 on: February 13, 2009, 07:30:34 AM »
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 Icehouse

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    • hvacbob
Re: Freeze 12
« Reply #18 on: February 13, 2009, 08:01:27 AM »
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 Icehouse

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  • Posts: 569
    • hvacbob
Re: Freeze 12
« Reply #19 on: February 13, 2009, 09:39:33 AM »
Most of the time  the dang gas is gone or real low right. So I always pull out the remaining gas and  reclaim it in my recovery machine. Even if I don't feel like any is in there I still pump down the old ice box and reclaim the refrigerant remaining. When I have 0 pressure on the gauge I pull a good vacuum  till I get as close to -30 as possible. Then I shut it down and watch it for a few hours to see if it loses vacuum. If it holds I recharge. I think most folks don't take the time to do it right.
http://www.heatcraftrpd.com/service/education.asp Evacuation
« Last Edit: February 13, 2009, 09:41:23 AM by Icehouse »
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/

 

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