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Friday, December 16, 2011

CryoBUG gets a new Compressor

I was originally going to use a Rechi 39R131E R-22 based rotary compressor that I had removed from a used 5200 btu window AC unit (pictured in first CryoBUG post). But I have now decided to go out and purchase a new LG LW5011 5000 BTU R-410a based window AC as my parts source. My reason being that number one I was not sure of the condition of the used compressor, and number two that the R-410a compressor will already come with an HFC compatible lubricant oil. Being R-410a rated, also means that it will be guaranteed to work at high pressures. Which will be a big plus in my application, especially if I would like to eliminate the need for an expansion tank.

So I found a good deal on the LG LW5011 unit at my local Home Depot store for $100. Now all I need to do is fork over the cash and go pick it up.

Not sure yet on the model number for the compressor being used, but it is a rotary, and should only require 500 watts of energy to run it (probably even less in my application). I'll be posting specs on the compressor once I tear this window AC unit apart, and get a model number off of it.

For the air-cooled condenser in my system, I'll be reusing the original window AC's evaporator, fashioning a fan shroud out of plywood, and utilizing two 4" muffin fans for air flow. Keep in mind that this first version is strictly a proof of concept prototype build, and certainly nothing fancy. Assuming that I see good results, a more refined version will be designed and built later on.

Update:
I wasn't able to get the LG LW5011 because unfortunately I'm shopping out-of-season for a window air conditioner (go figure). So luckily there was one customer returned unit that they found way up on top of a shelf (and believe me when I say "way up", those pallet shelves are not something I'd want to be next to in an earthquake). So what did I get? A Zenith ZW5010 5000 BTU window AC, which looked very similar to the LG unit I had wanted.

It has a made in China rotary R-410a rated compressor with POE oil. Manufacturer: Qingan Refrigeration, Model: YZG-A048Y2D2, Rated BTU/Hr: 4810, Rated Watts: 480, RLA: 4.30 amps, LRA: 27 amps, Displacement: 4.8 cc3/rev, Capacitor: 35uf 250V

Here is a pretty good list of R-410a compressors they make for the US market:

Refrigerant
Model
Capacity
Displacement
COP
Capacitor
Certificate
Power
W
BTU/Hour
cm3/rev
W/W
uF/V.AC
R410a
YZW-A075Y2D2
2550
8700
7.5
2.90
55/250
UL
1PH
115V
60Hz
R410a
YZW-A057Y2D2
1700
5800
5.7
2.90
40/250
R410a
YZG-A090Y2D2
2740
9350
9.0
2.90
50/250
R410a
YZG-A086Y2D2
2540
8670
8.6
2.90
50/250
R410a
YZG-A082Y2D2
2460
8400
8.2
2.90
50/250
R410a
YZG-A071Y2D2
2140
7300
7.1
2.90
40/250
R410a
YZG-A058Y2D2
1765
6025
5.8
2.95
40/250
R410a
YZG-A057Y2D2
1710
5835
5.7
2.95
40/250
R410a
YZG-A055Y2D2
1650
5630
5.5
2.95
40/250
R410a
YZG-A051Y2D2
1510
5150
5.0
2.70
30/250
R410a
YZG-A050AY2D2
1520
5185
5.0
3.00
35/250
R410a
YZG-A050Y2D2
1520
5185
5.0
2.95
35/250
R410a
YZG-A048AY2D2
1410
4810
4.8
3.00
35/250
R410a
YZG-A048Y2D2
1410
4810
4.8
2.95
35/250
R410a
YZG-A046Y2D2
1380
4710
4.6
2.70
30/250
R410a
YZG-A042Y2D2
1260
4300
4.2
2.70
30/250
R410a
YZG-A036Y2D2
1060
3615
3.6
2.60
25/250
R410a
YZG-E108RY2D2
3150
10750
10.8
2.90
60/270
R410a
YZG-E104RY2D2
3030
10360
10.4
2.9
60/270
R410a
YZG-E123RY2D1
3580
12215
12.3
2.95
30/450
UL
1PH
208-230V
60Hz
R410a
YZG-F170RY2D1
4910
16752.92
16.7
2.95
40/450
R410a
YZG-L94RY2D1
9400
32000
30.8
2.95
65/450
R410a
YZG-L85RY2D1
8500
29000
28.6
2.95
55/450
R410a
YZG-L80RY2D1
8000
28000
26.9
2.95
55/450

1 comments :

Gary W. Deason said...

Old compressor. I want to advise you that the service will help you to pick you up for air conditioning for real money and will set you back. Here is a link to them http://myairmatics.com/ . For a long time I use their services. And a lot of people I have advised them.

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