Posted: Fri Apr 13, 2012 7:32 pm
Wow what a waste 
Page 4 of 4
Posted: Fri Apr 13, 2012 8:40 pm
You could just use the R22 for the first stage, then swap your original first stage compressor to the second stage. Not a perfect scenario but it'll work if you just want the thing running again.
Posted: Fri Apr 13, 2012 9:31 pm
Yes, this compressor is an ideal primary stage unit for sure. It is much higher volume.
Matt
Matt
Posted: Mon May 14, 2012 3:59 pm
Hey Guys,
I have some more info for you..........
First, I found that the old style start relays allow the compressor to stall and restart without waiting 60 seconds like the solid state relays do.
Next (and this is something cool I just learned), compressors have an LRA rating. I learned that stands for "Locked Rotor Amps". Most refrigerator compressors are rated at 10 to 16 LRA. Some are above 18. Well, I found a R22 dehumidifier compressor (piston style, not a rotory style) that is rated at 38.6! This is a unit that was given to me last week by a customer of mine. So, I installed it as my secondary and I could not be happier! For one thing, the lower rated compressors would stall out with anything over 40 psi inlet pressure. If I wanted to go above 400 psi output, I had to restrict the inlet pressure to 25 psi. However, with this high LRA rated R22 unit, I can run 80 psi inlet pressure or more without stalling and my fill time is crazy fast now!
I could not be happier.
So, if you are looking at multiple compressors, research the LRA rating and get one with a high number, preferably over 20.
Matt
I have some more info for you..........
First, I found that the old style start relays allow the compressor to stall and restart without waiting 60 seconds like the solid state relays do.
Next (and this is something cool I just learned), compressors have an LRA rating. I learned that stands for "Locked Rotor Amps". Most refrigerator compressors are rated at 10 to 16 LRA. Some are above 18. Well, I found a R22 dehumidifier compressor (piston style, not a rotory style) that is rated at 38.6! This is a unit that was given to me last week by a customer of mine. So, I installed it as my secondary and I could not be happier! For one thing, the lower rated compressors would stall out with anything over 40 psi inlet pressure. If I wanted to go above 400 psi output, I had to restrict the inlet pressure to 25 psi. However, with this high LRA rated R22 unit, I can run 80 psi inlet pressure or more without stalling and my fill time is crazy fast now!
I could not be happier.
So, if you are looking at multiple compressors, research the LRA rating and get one with a high number, preferably over 20.
Matt