A place for general potato gun questions and discussions.
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VH_man
- Staff Sergeant 4

- Posts: 1827
- Joined: Sat Dec 09, 2006 6:00 pm
- Location: New Hampshire
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Tue Dec 15, 2009 1:02 pm
Well, My school got a new water fountain. And the maintenance department head saved this for me

:
More to come here... Muahahahahaha
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VH_man
- Staff Sergeant 4

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- Joined: Sat Dec 09, 2006 6:00 pm
- Location: New Hampshire
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Tue Dec 15, 2009 2:12 pm
yea, It is a little smaller....
I'm still trying to figure out how to recover the refrigerant from it. there HAS to be a way without the expensive machine
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McCoytheGreater
- Specialist

- Posts: 191
- Joined: Tue Dec 15, 2009 1:10 am
- Location: Mississippi State
Tue Dec 15, 2009 2:32 pm
Sometimes there's a place near the compressor with a schrader valve where they charged the compressor before. If not, crimp the pipe 4" past the output side of the compressor (the side that goes to the coils). be sure it is crimped well. Cut the pipe near the compressor and solder a schrader valve or quick connect to it. once this is done, hook up your container for the refrigerant and plug the compressor in. It should pull the refrigerant from the coils and expansion valve into your pressure vessel. My brother (he'll be on here in a little bit as McCoytheLesser) says there's not a lot of refrigerant in it. See if it's R-12 or R-134A type refrigerant. If you hear a leak while you're pumping, shut the equipment off and get the heck outta there. If it's R-12, you might as well put it to the side and forget about it. That's some bad stuff you'd be working with.
Edited by jrrdw.
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psycix
- Sergeant Major 4

- Posts: 3684
- Joined: Mon Jun 25, 2007 7:12 am
- Location: The Netherlands
Tue Dec 15, 2009 4:05 pm
Letting the freon out harms the ozone layer big time (same as driving 5000 km in your car) and is illigal to do in most countries. If they see you venting out the freon, you will have to pay up a lot of money...
Check refrigerator repair stores and ask if they can remove the freon. If you let em keep the freon for themselves it may not be that expensive.
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VH_man
- Staff Sergeant 4

- Posts: 1827
- Joined: Sat Dec 09, 2006 6:00 pm
- Location: New Hampshire
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Tue Dec 15, 2009 4:17 pm
just started taking it apart..... Pretty dang cool. The place where the water gets cooled is a good 15 lb coil of tubes....
Kinda smells bad too. Like and old dusty place. (I hear no leaks, So its not that....) Kinda yucky.
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POLAND_SPUD
- Captain

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Tue Dec 15, 2009 5:15 pm
freon is no longer in use...
r12 is freon
most stuff produced after 1990 use r134a (not freon) and it is rather safe
Children are the future
unless we stop them now
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POLAND_SPUD
- Captain

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- Joined: Sat Oct 13, 2007 4:43 pm
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Tue Dec 15, 2009 7:39 pm
normally, there is information about refrigerant used on the case of fridge compressors, IDK if they are on AC compressors
have you already received yours ?
Children are the future
unless we stop them now
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Technician1002
- Captain

- Posts: 5189
- Joined: Sat Apr 04, 2009 11:10 am
Tue Dec 15, 2009 8:54 pm
R12 is required to be recovered. In a sealed system like that a piercing valve is used. It clamps onto a pipe and then a pointed screw punches a hole in the pipe. Fitting clamp seals the hole and allows a recovery system to pump a vacuum on the tube, recovering all the refrigerant.
Some systems used R22 (mostly larger AC and freezers). Newer stuff uses R134a which is not as bad for the ozone, but it is still required to be recovered.
http://www.grainger.com/Grainger/items/6X898

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ThegunGuy
- Private 4

- Posts: 62
- Joined: Mon Oct 12, 2009 1:16 pm
Tue Dec 15, 2009 11:01 pm
Can't imagine how bad it was when we had to fill our suv up with freon every month. Maybe its causing the climate change here?
Just kidding you should try to not pollute the air as much as possible. Its co2 thats not really bad it comes from just about everywhere including trees. (at night they use the sugar they make in the day)