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Thread: Reclaiming refrigerant
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23-01-2007, 04:42 PM #1
captaincool GuestReclaiming refrigerant
Hello everybody. I'm new to the forum so please be gentle!
Been in the office too long, I'm looking for help with the quickest method of recovering refrigerant from a large a/c system. This consists of 2 D/X coils with separate cond units on a roof 2 floors above. I have heard of the push-pull method, not sure what it entails, if someone could enlighten me would be most grateful. Any help appreciated. Cheers.
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23-01-2007, 06:33 PM #2
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Re: Reclaiming refrigerant
Push pull or liquid recovery method involves pushing the vapor and pulling the liquid. When no more liquid is present in the circuit, then recover the vapor the normal way:
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24-01-2007, 02:04 AM #3
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Re: Reclaiming refrigerant
Have you thought about a custom cooler that cools the recovery cylinder very cold so refrigerant quickly migrates inside? In that case, connect the recovery unit (not running) as for vapor recovery but also have a liquid hose as with liquid recovery.
When the liquid recovery by cooling the cylinder has completed, close the liquid valve and start the recovery unit, keeping the cooler running."If Hannah was an air handler, I would be a condensing unit so I could open her TXV and pump my refrigerant through her coils." - a HVAC friend of mine
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24-01-2007, 04:33 AM #4
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Re: Reclaiming refrigerant
The bucket of ice water was patented a while ago
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24-01-2007, 02:14 PM #5
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Re: Reclaiming refrigerant
It doesn't work in winter time for air cooled equipment. It works quite well in Siberia. When the ambient air is -60°C, the pipes inside the air conditioners are almost vacuum and the liquid is stored in the remote condenser.
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24-01-2007, 04:52 PM #6
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Re: Reclaiming refrigerant
Only ever had to worry about AC not food refrigeration. They would not know the AC was dead until summer.
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24-01-2007, 08:04 PM #7
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Re: Reclaiming refrigerant
I thought the ozone layer absorb all the lost refrigerant
Lrac
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24-01-2007, 10:56 PM #8
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Re: Reclaiming refrigerant
Now, now, don't start, you'll get a slapped wrist you know
Originally Posted by LRAC
I thought the ozone layer absorb all the lost refrigerant
Lrac
Brian - Newton Abbot, Devon, UK
Retired March 2015
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25-01-2007, 07:49 AM #9
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Re: Reclaiming refrigerant
ring brad at polar pumps [look on there website] hire one of there machines, from a little puffer [pardon the punn] to a gas driven monster.
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25-01-2007, 09:07 AM #10
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Re: Reclaiming refrigerant
[quote=captaincool;58580 I have heard of the push-pull method, not sure what it entails, if someone could enlighten me would be most grateful. Any help appreciated. Cheers.
[/quote]
Push Pull is an effective method for recovery but modern reclaim units that can pull liquid or vapour will save you all the hassel.
Cheers taz.
