Sticky change over valve

Just had a new Trane variable speed air handler installed, to work with my Trane XL1200 Heat pump. The heat pump is about 18 years old. Of course after turning things back on the switchover vale seems to hang up in the cooling mode. The installers did the best to keep things from dirt getting where it should,but things happen.
They say that there is a lubricate to help the valve. out. Anyone had any experince with this stuff. I will probably end up getting a new unit, but just hope I can hold on for awhile. It has given me not a bit of trouble, so It can be retired.
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Wow, you replaced the indoor unit with a top quality variable speed unit, yet you left the 18 year old condenser????
But back to your current problem, you're saying the tech is sloppy and got shit into the system. Shame on them, twice! First for selling you *part* of the system. Second for having crappy installation practices.
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First of all let me say that I am not HVAC person However I am Refrigeration Tech with more experience then most of guys in this forum. To start with perhaps it is mistake replacing Evaporator assembly that is not design to be use as you have, but never the less properly match and install system should work. question here is did the valves work ok before system was modified, was valves been removed and then reinstall if they was removed and reinstall, have they been install properly (in/out) as for refrigerant I would not worry about that R-22 or replacement MX-22 will be around for many years to come and let no one tell you other wise. lubrication for valve there is no such thing since valve is constantly lubricated by internal oil with in the system, don't forget that valves can fail go bad at any time like anything else our life's nothing last forever, however I would check that valves are install properly and if are powered up at proper time to switch over. www.cas-environ.com Tony

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Yet you lack the simple training and knowledge to understand *why* an evaporator would freeze up. Geez... you really are one clueless wanna-bee.
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I defiantly do not need any from Bozo like you Tony
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I'm sorry you can't understand simple things... must suck...
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KJPRO what is wrong with you, man is talking about sticky valves and you are taking about freeze up. I strongly suggest that you change the brand because whatever you are smoking it is not helping you!! Tony
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Once again, *try* and keep up... Re-read this complete message and you'll find were you stated... "I am not HVAC person" but "with more experience then most of guys in this forum" However, you couldn't understand *how* a simple evaporator could freeze up in another thread... (this happened yesterday, if you can't remember). I suggest that you *try* to understand things *before* you go posting about things you *definately* know little about.
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new jersey wrote:

Yes of course..Defiantly. In other words ... do not confuse your with facts. Perhaps you should lurk and learn a while before you post again. It could benefit your education in this business.

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They're probably talking about Supco oil. I've heard that it's supposed to help sticky RV's but I tried it years ago & it never worked for me. The only thing that's ever worked for me & only a couple times was unhooking the fan, driving up the head pressure & bumping the solenoid off & on repeatedly. You'll know it if it ever shifts. Most of the time its a losing battle. It's curious that you're trying to save money by not changing the complete system & yet you go ahead & put a variable speed AH in.
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