I have had trouble with my A/C not cooling my house. I live in Houston, TX. I had 2 techs out, one said I needed to install TXV, the other said TXV would not help but said he did not see any problems even though the indoor temp drop was only 10 deg. I would like to get your advice so I can be informed for the next tech that comes out.
I have a split system, unit 1 is a 2.5 ton, 10 SEER York model #H2RA030506D. Inside evaporator is 3 ton, model #ASFM364010T. Horizontal furnace (air handler) model #P3HUA12N04801C. Outdoor temp 92 deg, 55% humidity, condenser air discharge 106 deg. Suction line pressure 65, suction line temp 78 = superheat 38 deg(used P/T chart). Head pressure 260, high pressure line temp 109(measured at valve) = subcooling 13. Indoor temp at return 80 DB, 68 WB; at supply 70 DB, 59 WB.
Unit 2 is a 3.5 ton, 10 SEER York model #H1RA042506D. Inside evaporator is 4 ton. Horizontal furnace (air handler) model #P3HUB16N06401C. Outdoor temp 98 deg, 54% humidity, condenser air discharge 123 deg. Suction line pressure 90, suction line temp 85 = superheat 30 deg. Head pressure 280, high pressure line temp 118(measured at valve) = subcooling 7. Indoor temp at return 81 DB, 69 WB; at supply 71 DB, 60 WB.
Thanks for any thoughts.