Malfunctioning thermostatic expansion valve (TXV) in new... - HVAC-Talk
May 31, 2016 · Last fall a professional HVAC contractor installed a new Carrier 4 ton condenser and 4 ton evaporator coil. I ran it for the first time this spring and the coils froze. The HVAC contractor …
Residential and Light Commercial Air Conditioning TXV/EEV ... - HVAC …
Apr 6, 2017 · Residential and Light Commercial Air Conditioning TXV/EEV Troubleshooting TXV (thermostatic expansion valve)/EEV (electronic expansion valve) troubleshooting made simple! Here …
Temperature difference above and below TXV valve - HVAC-Talk
Sep 21, 2022 · After further diagnosis though, he thought we had a "TXV valve liquid line restriction". He showed me with equipment that it was 75-76 degrees below the TXV valve and 47-46 degrees above …
TXV Valve | HVAC-Talk: Heating, Air & Refrigeration Discussion
Dec 30, 2008 · TXV Valve Update Mr. Bill, Thanks for replying. The coiled copper tubing that is part of the TXV valve keeps breaking at the point where it attaches into the line. I am not an HVAC tech but …
Bad TXV symptoms - HVAC-Talk
May 17, 2018 · Fan running drops liquid condenser temp and pressure Remove and heat the txv bulb while watching pressures. Valve should open, cool buld, valve should close. Sent from my iPhone …
My HVAC Guy Says, "Why Use a TXV?"
Jun 27, 2004 · A txv will monitor the load of the evaporator coil and make adjustments to maintain the ideal refrigerant flow. Dont listen to these guys that tell you about txv failure.
New calgon zerol additive for stuck txv valves - HVAC-Talk
Jun 10, 2015 · Hey guys, Curious about other techs experience with adding zerol to a.c. Systems having the stuck txv valve issue. If you haven't heard of this Copeland claims one of they're manufactures …
Finding out if a unit is a TXV or piston without having... - HVAC-Talk
Sep 9, 2023 · Is there a way to find out if a split system has a TXV or piston metering device without having to crawl in the attic and take the evaporator apart just to find out? It's such a pain having to …
TXV every day? | HVAC-Talk: Heating, Air & Refrigeration Discussion
Oct 2, 2007 · The TXV used to always have a screen upstream to protect the valve function. The screen may be smaller on the smaller TXV's & much more prone to partial plugging enough to cause …
S-shaped pipe line as bypass to TXV valve - HVAC-Talk
Dec 14, 2024 · After minute or two I saw that TXV started freezing and ANOTHER part close to TXV. It is S-shaped pipe line, bypassed TXV, little bit thicker on the middle section of S .