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Trane Charge Buster
I worked on a small Trane Heat pump today that had a part that resembles a liquid line dryer on the liquid line inside of the unit before the TXV. It had the words Trane Charge Buster on it, and I am just wondering if this is indeed a liquid line dryer. Thanks
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Nope Its an accumulator..
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Originally Posted by
graham
Nope Its an accumulator..
If it's before the TXV, it wouldn't be an accumulator, but it could be a receiver.
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Yep your right its a reciever . shouldnt drink before posting ??????
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The accumulator would be on the suction line. I am not clear on this being a reciever because it if installed in a vertical position. It looks like a normal filter dryer in the vertical position. I am wondering what a reciever would be doing on a residential Trane unit. I thought that was big boy stuff. Thanks
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If its before the reversing valve its a muffler, if its before the indoor TXV its a drier. Trane normally does not use accumulator because of the Climatuff compressor.
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If you have a model# i'll check for you.
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Originally Posted by
jimj
If you have a model# i'll check for you.
I'll get it monday.
Usually, the muffler is located on the hot gas discharge line right after the compressor to help control the compressor noise. I will check for the accumulator. I am pretty sure I saw one, but the unit was running and I was in a hurry.
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Its a charge robber designed to steal away a little refrigerant during heating operation.
I guess.....cause I dont know exactly what the OP is seeing
But from the factg that he is seeing a trane label with "charge buster" on it...Im going to go ahead and ASSume its a charge robber.
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Originally Posted by
corny
Its a charge robber designed to steal away a little refrigerant during heating operation.
I guess.....cause I dont know exactly what the OP is seeing
But from the factg that he is seeing a trane label with "charge buster" on it...Im going to go ahead and ASSume its a charge robber.
Great, now I HAVE to go take that panel back off, because I think that you are right. It may have indeed said robber instead of buster. I assume that this device takes the place of an accumulator? Please advise as to how it works, because it just looks like a liquid line dryer to me. Thanks
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"6. Charge Compensator: The use of a charge compensator (low side receiver model PR 3083 manufactured by Parker Hannifin) in heat pump applications is another way of controlling refrigerant. This receiver mounts in the suction line coming from the outdoor coil to the reversing valve. Do not get this line confused with the common suction line from the reversing valve to the compressor where an accumulator is normally installed. During the heating mode, refrigerant is pulled into the receiver/compensator due to the low temperature of the suction line going through the device. During the heating mode, there can be a large percentage of the refrigerant charge backed up in the condenser (indoor coil in the heating mode). This backed up refrigerant can cause an increase in discharge pressure and a loss of heat output from the system. By storing this excess refrigerant in the low side receiver, the system would have better control of the refrigerant and the system efficiency would increase due to operating at a reduced high side pressure. Liquid return to the compressor during defrost could also be reduced, possibly eliminating the need for an accumulator. Prior to eliminating the accumulator, extensive system testing would be required to confirm all liquid surges (especially during defrost termination) have been reduced to a level that will not endanger the compressor."
http://www.bristolcompressors.com/InfoDocs/Application%20Bulletin%20101.doc
Does that sound like what it is?
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Very interesting iv never seem them let alone heard of them.
Makes sense though that reffer has to go somewhere during heat mode
Thats why i love this place, always learning something
Edit: tried to google it and only came up with one for lennox 222.00 list price gotta love it
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Originally Posted by
BigJon3475
"6. Charge Compensator: The use of a charge compensator (low side receiver model PR 3083 manufactured by Parker Hannifin) in heat pump applications is another way of controlling refrigerant. This receiver mounts in the suction line coming from the outdoor coil to the reversing valve. Do not get this line confused with the common suction line from the reversing valve to the compressor where an accumulator is normally installed. During the heating mode, refrigerant is pulled into the receiver/compensator due to the low temperature of the suction line going through the device. During the heating mode, there can be a large percentage of the refrigerant charge backed up in the condenser (indoor coil in the heating mode). This backed up refrigerant can cause an increase in discharge pressure and a loss of heat output from the system. By storing this excess refrigerant in the low side receiver, the system would have better control of the refrigerant and the system efficiency would increase due to operating at a reduced high side pressure. Liquid return to the compressor during defrost could also be reduced, possibly eliminating the need for an accumulator. Prior to eliminating the accumulator, extensive system testing would be required to confirm all liquid surges (especially during defrost termination) have been reduced to a level that will not endanger the compressor."
http://www.bristolcompressors.com/In...etin%20101.doc
Does that sound like what it is?
I am not so sure. I will have to go back and verify, but I am pretty sure that this device was located on the line feeding the outdoor TXV, which will definetely be a liquid line, not a suction. I looked at this pretty hard as I traced the lines out, but I will go back.
That was an interesting report. I am suprised to learn that refrigerant oil attracts refrigerant. I always thought that the refrigerant was attracted by the lower temps. I think that this is still true, but evidently the oil has some type of phenominon going on with the coolness that attracts the refrigerant. Otherwise, using a crankcase heater would not benefit much if the refrigerant was attracted merely to the oil, and not the cooler temps. Does this sound correct? Is this theory what you took out of that part of the report? Please advise. Thanks
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Originally Posted by
nchvac
I am not so sure. I will have to go back and verify, but I am pretty sure that this device was located on the line feeding the outdoor TXV, which will definetely be a liquid line, not a suction. I looked at this pretty hard as I traced the lines out, but I will go back.
That was an interesting report. I am suprised to learn that refrigerant oil attracts refrigerant. I always thought that the refrigerant was attracted by the lower temps. I think that this is still true, but evidently the oil has some type of phenominon going on with the coolness that attracts the refrigerant. Otherwise, using a crankcase heater would not benefit much if the refrigerant was attracted merely to the oil, and not the cooler temps. Does this sound correct? Is this theory what you took out of that part of the report? Please advise. Thanks
http://www.fileden.com/files/2008/6/...escription.pdf
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Originally Posted by
nchvac
I am not so sure. I will have to go back and verify, but I am pretty sure that this device was located on the line feeding the outdoor TXV, which will definitely be a liquid line, not a suction. I looked at this pretty hard as I traced the lines out, but I will go back.
That was an interesting report. I am surprised to learn that refrigerant oil attracts refrigerant. I always thought that the refrigerant was attracted by the lower temps. I think that this is still true, but evidently the oil has some type of phenomenon going on with the coolness that attracts the refrigerant. Otherwise, using a crankcase heater would not benefit much if the refrigerant was attracted merely to the oil, and not the cooler temps. Does this sound correct? Is this theory what you took out of that part of the report? Please advise. Thanks
The difference in surface tension attracts the refrigerant to be absorbed into the oil. The process will continue until the is a pure band of liquid refrigerant lying under the oil [since it weighs more]. This is where the oil pump inlet screen is located. Starting the compressor pumps the liquid refrigerant to the bearings, removing any oil film, adhering the aluminum rods to the crankshaft.
Using crankcase heat drives the refrigerant out of the oil to condense somewhere cooler.
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Ok guys, this unit is a Trane XE 1000. It it model number TWR018C100A4. mANUFACTURED IN 08/2002.
Here is how this thing is mounted. The liquid line comes into the unit. The liquid line T's off to a part resembling a factory line dryer (1' diameter x about 5 inches long), and then goes into the TXV. The other line off of the T goes to this Charge robber, which again resembles a field liquid line dryer, and then comes back into the line that comes out of the TXV just before the diffuser that branches off to the circuits.
Does this ring a bell to anyone?
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In Trane WebCats its listed as a accumulator; Charge Robber ( part #ACC00085). I believe Big John got it correct.
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I know that on trane condensers, they utilize a ll drier before the txv that looks like a generic torpedo style copper drier, because the liq line travels in one direction and the suction the same, the use of a bi flow drier outside of these units is not needed.