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Vlad · 07-21-12, 06:11 PM

Here is some info about my water to air HP/AC unit:

I got this unit for free with dead compressor (it was 265V anyways...).

Originally unit was installed in office building with water loop that had boiler for heating and cooling tower for cooling.

It was: 1 ton, 265V single phase, R22 (evacuated), cap tube, original charge 13.5 oz.

Now it is: 1 ton, propane, 2 txvs (with check valves ), 240V single phase, charge 7 oz.

I have some R 22 but I wanted to see propane performance. I distilled some auto propane. First I purged r22 tank(oops I wanted to say propane tank) (in the morning open valve very slowly just crack it and let non condensibles go. Make sure you don't shake the tank before you open it.) After I put tank in chest freezer to freeze it (it will help to keep butane and some moisture inside). After I started vapor recovery. I did added filter/drier.

So after this I got 15 oz of distilled propane. The smell is almost gone because of filter/drier.

Now I have my unit running 16°F subcooling, 15°F superheat, High side 115 Psi, Low side 63-65 PSI.

House is getting COOOOOL

07-21-12, 06:11 PM	#1272
Vlad Apprentice EcoRenovator Join Date: Aug 2010 Location: Windsor ON Canada Posts: 229 Thanks: 4 Thanked 30 Times in 22 Posts	Here is some info about my water to air HP/AC unit: I got this unit for free with dead compressor (it was 265V anyways...). Originally unit was installed in office building with water loop that had boiler for heating and cooling tower for cooling. It was: 1 ton, 265V single phase, R22 (evacuated), cap tube, original charge 13.5 oz. Now it is: 1 ton, propane, 2 txvs (with check valves ), 240V single phase, charge 7 oz. I have some R 22 but I wanted to see propane performance. I distilled some auto propane. First I purged r22 tank(oops I wanted to say propane tank) (in the morning open valve very slowly just crack it and let non condensibles go. Make sure you don't shake the tank before you open it.) After I put tank in chest freezer to freeze it (it will help to keep butane and some moisture inside). After I started vapor recovery. I did added filter/drier. So after this I got 15 oz of distilled propane. The smell is almost gone because of filter/drier. Now I have my unit running 16°F subcooling, 15°F superheat, High side 115 Psi, Low side 63-65 PSI. House is getting COOOOOL Last edited by Vlad; 07-22-12 at 01:50 AM..