Quote Originally Posted by gomeler View Post
Woohoo! Nicely done, all out of a single compressor I'm guessing as you do more testing you'll have temps for the various heat exchanger? Curious what sort of temps you are seeing on them all.
Yes I got some stack temps, but not all.

Here are the specs:

Cool-No-Load Tuned for maximum of 100 watts
  • Compressor Pressures: 20/125
  • Compressor Discharge: 42.6C
  • Compressor Suction: -8.6C
  • Strainer#1: -62.6C
  • Strainer#2: -77.6C
  • Strainer#3: -86.1C
  • Strainer#4: -103.2
  • Coil Outlet: -115.4C
  • Coil Inlet: -116.9C
  • Compressor Amperage: 2.2


125 Watts Applied Heat Load
  • Compressor Pressures: 43/240
  • Compressor Discharge: 51.8C
  • Compressor Suction: -2.6C
  • Strainer#1: -42.4C
  • Strainer#2: -61.2C
  • Strainer#3: -67.2C
  • Strainer#4: -96.1C
  • Coil Outlet: -99.8C
  • Coil Inlet: -103.8C
  • Compressor Amperage: 3.6


Charge: 7oz of R-600, R-170, R-14 (60%/40% ratio)

The Loaded temps were after adding more R-170 and R-14, in order to take on the extra load. As you can see by looking at the relationship between the final strainer (#4) and the coil outlet; I am nearly flooded.

I would give more specifics on the gas charge, but I had to make so many additions because of inadequate expansion tank volume, that it would be difficult to come up with accurate amounts at this time. I will be increasing my expansion tank size, and recharging from scratch (more test results to come).

It is certainly impressive considering that this is being done with a single 9cc displacement compressor, and drawing just under 4 amps to boot!