I have been using this site for some time now and have found it quite informative. I have been in the business for about 15 years. 8 in the field, 2 in sales, and 4 years now working for a small OEM. I have a question on TXV mainly that I cannot wrap my head around. Where is the best place to post this?
I have a 10 ton Copeland scroll compressor, engineers speced 2 6 ton TXV's on the system. The condenser air is controlled by a VFD maintaining 115 F. supply inlet is 70, and I am getting 20 degrees off my evap. My problem is I have normal subcooling, but compressor is sweating, and I have no superheat. temp coming back to compressor is 39 F and I am getting 39.5 line temp. Amps are higher than average.
I have tried adjusting the TXV with no success. Question would be is it stuck? or do I need to go with 2 5 ton TXV's, and why. So I can present my answer to the engineers.
Thanks in advance for the help.