I need a little help rebuilding a bait freezer on my boat. I don't know much about refrigeration. I do some work installing and charging new split unit A/C systems but not much in the way of trouble shooting.
The box is small 23"L x 13 3/4" W x 14 1/2 D and the evaporator is a wrap aroud type about 8"W and surrounds the box.Insulation is unknown, maybe 2" and 20 years old. I wanted to keep the evaporator to save the expense of a complete new system.
The existing condensing unit has gone south and is so rusted there is not much in the way of numbers. I do know however the compressor is an AE 120AT and it is a cap tube system. I was planing on replacing it with an AEA1360AXAXA unit which I believe the existing one may be. But,I'm not too sure of the condition of the cap tube nor the required charge. SO I got this half baked idea of getting a unit with a receiver and using a TXV. The only trouble is I can't seem to find a unit as small as the 1360. I did pick out an AEA2410AXAXC But not sure if it would be too large. The other problem I have is, if I do go to the TXV the connection where the cap tube enters the evaporator has maybe an 1 1/2" piece of 1/4" copper somehow sleeved to the aluminum pigtail (8-10") I could cut the end of the copper where the cap tube is attached and flare it but If it gets screwed up I'll be dealing with a copper to aluminum connection of which I don't have a clue as to the best way to connect it.
I know this is a lot of crap and I never really did ask a question. I'm just looking for some thoughts about the best way to go about this.
Does anyone have any input? And If you come up with the idea of scrapping the system, Any Ideas on where to obtain a new evaporator I can bend to fit? and a condensing unit to match. At that point I suppose I could even change refrigerants.
All I want to do is keep 4-5 flats of shark and tuna bait rock solid.