Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.
bad txv?
zepfan
Member Posts: 406
i got a call today for no ac on a ten ton, single compressor,r22,heat pump.the pressures were 104 suction,175 discharge,and 175 at the liquid line valve.the superheat was 23 degrees and the subcooling was 2 degrees.there was no temperature drop across the liquid line drier,and the indoor check valve on the air handler was definitly holding as there was a noticable temperature drop across the body of the check valve.the only thing that i can think that this is a stuck open indoor txv.i have ruled out a leaking reversing valve because the touch test proved the valve was not leaking and i have also ruled out the compressor's valves, because if you block the condenser the head pressure goes up.the txv is the only thing that i can think would be causing this no cooling condition.any suggestions would be much appriciated
0
This discussion has been closed.
Categories
- All Categories
- 86K THE MAIN WALL
- 3.1K A-C, Heat Pumps & Refrigeration
- 52 Biomass
- 421 Carbon Monoxide Awareness
- 81 Chimneys & Flues
- 1.9K Domestic Hot Water
- 5.3K Gas Heating
- 96 Geothermal
- 154 Indoor-Air Quality
- 3.3K Oil Heating
- 60 Pipe Deterioration
- 893 Plumbing
- 5.9K Radiant Heating
- 379 Solar
- 14.7K Strictly Steam
- 3.2K Thermostats and Controls
- 52 Water Quality
- 41 Industry Classes
- 47 Job Opportunities
- 17 Recall Announcements