Remove R12 from an broken compressor ?

[dannzig] · 01-04-2002, 02:56 PM

Hi!

I found this "old" compressor(a danfoss from 1990) laying around on my familys newly bought hotel ( yes we are the odd kind of people that live in wierd places)
When i first saw it i thought to myself. i WANT that radiator!
But then i came to think.. what about the coolant inside ? is it as bad for me as an angry cobra ? i dont want to risk my health because of this.

I really dont give a flying **** about the enviroment... so... is it dangerous to cut the lines ? for me myself and I.
A label says it uses r12 coolant.. some kind of freon isn´t it ?

i thought i should ask you guys before i get myself into trouble

Tweekster · 01-04-2002, 06:31 PM

There are several hazards to discharging freon yourself. Just take the whole rig down to an Auto service shop and have them discharge it (if there is anything left in it!) with their freon recycling equipment......then flush the remaining mineral oil out of the coil with a light detergent. Should be ready to use.

Irfastr · 01-04-2002, 07:26 PM

WTH? try and see if the compressor still works! if it does you got yourself the beginnings of a phase change system!!! yay!
but its pretty old, 92 you say? Danfos you say?
I would run it on something like, a hot coffe pot and see if it works ok

Butcher · 01-04-2002, 08:08 PM

R12 is non hazardous, but escaping freon may cause cold burns as it'll be very cold from the pressure change.

[dannzig] · 01-05-2002, 03:24 AM

THanx alot guys !
I think i will get myself my hacksaw and start hacking it to pieces

Brad · 01-05-2002, 07:11 AM

so it is a complete setup, radiator, compressor, evaporator, or what?

do you know how powerful the compressor is? It mightn't be powerful enough for an athlon, or at least a heavily overclocked athlon

grep · 01-06-2002, 02:45 AM

Just thought I would mention that the danfoss compressor is used in the vapochills, but they changed the freon from R-12 to R134a. R-12 is what the danfoss's were originally designed for, but environmental concerns made them change to the less efficent R-134a. If this unit still runs and still has a charge you can make a very powerful vapochill substitute out of it.

Grep

[dannzig] · 01-06-2002, 02:14 PM

I was thinking the same thing as you, but i dont have the techical skills for it i think....

the unit was used to cool 2(!) MASSIVE restaurant fridges... so i think that it is sufficent to cool a little tbird or 2...

grep · 01-06-2002, 03:54 PM

two massive resturant fridges, I guess you need to check the model number on that danfoss, the BD35 or the BD50 would be good for cooling a cpu anything bigger might not be such a good idea.

Grep

[dannzig] · 01-06-2002, 04:08 PM

why isn´t it ?

I guess I could freeze over the whole goddamn room with it

but hell i´d be getting great temps before that

isnt it there a way to throttle down the power of it ?
i dunno im not into phase change stuff

Brad · 01-06-2002, 09:25 PM

would it be possible to throttle it down with a resistor? so instead of 12v, it runs on 8v or something

grep · 01-07-2002, 01:35 AM

you still havn't told me the model number. So I really can't give any suggestions, yes you can use a resistor to reduce the motor speed, but if its a large as your suggesting, it would take a very large resistor.

Grep

[dannzig] · 01-07-2002, 02:17 AM

we are not talking 12v ... this is of course a 230v unit.

grep · 01-07-2002, 07:15 PM

230volts, thats entirely different matter, most likely its 3 phase AC and no resistor is going to slow this baby down. AC powered motors speed can not be changed, they operate by locking the rotor to the line frequency or some multiple of it. Ok if your really determined it can be done, but its cheaper to buy an entire new motor. As a cpu cooler I would skip on this, its way to big, pulls way to much power and would turn your rig into a giant ice cube. Now that you have this giant ice cube, you turn it on and it begins to melt from the inside, since the outside is kept freezing by the big compressor the inside is in liquid due to the heat generated by the cpu and video card etc. So now your running your system in very cold water. Hmmm! this doesn't seem to be a real good idea, but look on the brite side, you don't have to worry about condensation.

Grep

[dannzig] · 01-08-2002, 02:54 AM

hm.. after some concideration img going to rip apart the unit ant just take tha "radiator" from it.

Butcher · 01-08-2002, 01:39 PM

230V isn't 3-phase usually, that's normally 415V, 230V is standard single-phase household supply

Brad · 01-08-2002, 05:25 PM

how big is the rad on it?

[dannzig] · 01-08-2002, 05:46 PM

hm... about .... 30cm*40 cm ... dunno how thick but about 6-7cm ....

01-04-2002, 02:56 PM	#1
[dannzig] Cooling Savant Join Date: Dec 2001 Location: Sweden Posts: 98	Remove R12 from an broken compressor ? Hi! I found this "old" compressor(a danfoss from 1990) laying around on my familys newly bought hotel ( yes we are the odd kind of people that live in wierd places) When i first saw it i thought to myself. i WANT that radiator! But then i came to think.. what about the coolant inside ? is it as bad for me as an angry cobra ? i dont want to risk my health because of this. I really dont give a flying **** about the enviroment... so... is it dangerous to cut the lines ? for me myself and I. A label says it uses r12 coolant.. some kind of freon isn´t it ? i thought i should ask you guys before i get myself into trouble __________________ \|father of ebba - www.ebba.da.ru\| at7max/d700/256/80/ti4200

01-04-2002, 06:31 PM	#2
Tweekster Cooling Neophyte Join Date: Oct 2001 Location: The Rockies Posts: 31	There are several hazards to discharging freon yourself. Just take the whole rig down to an Auto service shop and have them discharge it (if there is anything left in it!) with their freon recycling equipment......then flush the remaining mineral oil out of the coil with a light detergent. Should be ready to use. __________________ Dual 2400MP \| Dual 2.4 Xeon

01-04-2002, 08:08 PM	#4
Butcher Thermophile Join Date: May 2001 Location: UK Posts: 1,064	R12 is non hazardous, but escaping freon may cause cold burns as it'll be very cold from the pressure change. __________________ Once upon a time, in a land far far away...

01-05-2002, 03:24 AM	#5
[dannzig] Cooling Savant Join Date: Dec 2001 Location: Sweden Posts: 98	THanx alot guys ! I think i will get myself my hacksaw and start hacking it to pieces __________________ \|father of ebba - www.ebba.da.ru\| at7max/d700/256/80/ti4200

01-06-2002, 02:45 AM	#7
grep Cooling Neophyte Join Date: Mar 2001 Posts: 37	Just thought I would mention that the danfoss compressor is used in the vapochills, but they changed the freon from R-12 to R134a. R-12 is what the danfoss's were originally designed for, but environmental concerns made them change to the less efficent R-134a. If this unit still runs and still has a charge you can make a very powerful vapochill substitute out of it. Grep __________________ every thing is optional

01-04-2002, 07:26 PM	#3
Irfastr Foo's Been Banned Join Date: Dec 2001 Posts: 7	WTH? try and see if the compressor still works! if it does you got yourself the beginnings of a phase change system!!! yay! but its pretty old, 92 you say? Danfos you say? I would run it on something like, a hot coffe pot and see if it works ok

01-05-2002, 07:11 AM	#6
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	so it is a complete setup, radiator, compressor, evaporator, or what? do you know how powerful the compressor is? It mightn't be powerful enough for an athlon, or at least a heavily overclocked athlon

01-06-2002, 02:14 PM	#8
[dannzig] Cooling Savant Join Date: Dec 2001 Location: Sweden Posts: 98	I was thinking the same thing as you, but i dont have the techical skills for it i think.... the unit was used to cool 2(!) MASSIVE restaurant fridges... so i think that it is sufficent to cool a little tbird or 2... __________________ \|father of ebba - www.ebba.da.ru\| at7max/d700/256/80/ti4200

01-06-2002, 03:54 PM	#9
grep Cooling Neophyte Join Date: Mar 2001 Posts: 37	two massive resturant fridges, I guess you need to check the model number on that danfoss, the BD35 or the BD50 would be good for cooling a cpu anything bigger might not be such a good idea. Grep __________________ every thing is optional

01-06-2002, 04:08 PM	#10
[dannzig] Cooling Savant Join Date: Dec 2001 Location: Sweden Posts: 98	why isn´t it ? I guess I could freeze over the whole goddamn room with it but hell i´d be getting great temps before that isnt it there a way to throttle down the power of it ? i dunno im not into phase change stuff __________________ \|father of ebba - www.ebba.da.ru\| at7max/d700/256/80/ti4200

01-06-2002, 09:25 PM	#11
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	would it be possible to throttle it down with a resistor? so instead of 12v, it runs on 8v or something

01-07-2002, 01:35 AM	#12
grep Cooling Neophyte Join Date: Mar 2001 Posts: 37	you still havn't told me the model number. So I really can't give any suggestions, yes you can use a resistor to reduce the motor speed, but if its a large as your suggesting, it would take a very large resistor. Grep __________________ every thing is optional

01-07-2002, 02:17 AM	#13
[dannzig] Cooling Savant Join Date: Dec 2001 Location: Sweden Posts: 98	we are not talking 12v ... this is of course a 230v unit. __________________ \|father of ebba - www.ebba.da.ru\| at7max/d700/256/80/ti4200

01-07-2002, 07:15 PM	#14
grep Cooling Neophyte Join Date: Mar 2001 Posts: 37	230volts, thats entirely different matter, most likely its 3 phase AC and no resistor is going to slow this baby down. AC powered motors speed can not be changed, they operate by locking the rotor to the line frequency or some multiple of it. Ok if your really determined it can be done, but its cheaper to buy an entire new motor. As a cpu cooler I would skip on this, its way to big, pulls way to much power and would turn your rig into a giant ice cube. Now that you have this giant ice cube, you turn it on and it begins to melt from the inside, since the outside is kept freezing by the big compressor the inside is in liquid due to the heat generated by the cpu and video card etc. So now your running your system in very cold water. Hmmm! this doesn't seem to be a real good idea, but look on the brite side, you don't have to worry about condensation. Grep __________________ every thing is optional

01-08-2002, 02:54 AM	#15
[dannzig] Cooling Savant Join Date: Dec 2001 Location: Sweden Posts: 98	hm.. after some concideration img going to rip apart the unit ant just take tha "radiator" from it. __________________ \|father of ebba - www.ebba.da.ru\| at7max/d700/256/80/ti4200

01-08-2002, 01:39 PM	#16
Butcher Thermophile Join Date: May 2001 Location: UK Posts: 1,064	230V isn't 3-phase usually, that's normally 415V, 230V is standard single-phase household supply __________________ Once upon a time, in a land far far away...

01-08-2002, 05:25 PM	#17
Brad Thermophile Join Date: Oct 2001 Location: Nuu Zeeelin Posts: 3,175	how big is the rad on it?

01-08-2002, 05:46 PM	#18
[dannzig] Cooling Savant Join Date: Dec 2001 Location: Sweden Posts: 98	hm... about .... 30cm*40 cm ... dunno how thick but about 6-7cm .... __________________ \|father of ebba - www.ebba.da.ru\| at7max/d700/256/80/ti4200

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