i'm about to replace one because i think is stuck closed and can't open flow refrigerant to the coil, and its exactly the same evaporator i'm dealing with and same valve like your video
I'd like you to expand on the opinion that this kind of control strategy is good for the compressor (e.g. compared to switching the compressor on/off by a thermostat). Is could be so, but the statement should be more like "In cold climates and compressors without sump heaters, where during long idle periods refrigerant can migrate to sump/oil, this control strategy prevents oil foaming/compressor slugging." I know that both control strategies are common and none must really be defended to a customer. What I mean is engineers' talk. I'd be glad to have a better picture that an average tech.
Hi thanx for the video...can u plz tell exact mounting position of solenoid valve to stop refrigerent flow from the evaporator..where to install after filter dryer befor expantion valve. Plz
Ok you showed one way to know if the solenoid is getting energized by the resultant magnetic field on the screwdriver. Now my question is can the valve stick or get stuck even if the solenoid is energized? IE: valve not getting thrown... And if you use the meter ( check for voltage coming from the thermostat ) then check for magnetic field. No magnetic field means an open coil in the solenoid and then deduce "bad solenoid", yes? Lol how much voltage would you get across the coil if its good? Sitting here im thinking you'd get a pretty low voltage reading across a conducting coil...whats the resistance of the coil? Notes I'd put on my schematic maybe, X volts if open and Y volts if not open. I'm guessing the refrigerant is the lubricant for the valve? If the valve is opened and closed too many times when refrigerant has leaked out, can the valve get stuck? I guess you'd get an idea the valve is stuck if the evaporator doesn't get cold?
Head pressure is determined by condenser ambient temperature (small refrigerant mass flow = low thermal power, impact of fan operation is low). Suction pressure is determined by type of compressor and its wear as well as control devices.
@@liranzozot4376when the controller does not send a signal to liquid solenoid valve, then would the compressor turn off right away due low pressure on suction as a result of no refrigerant migration? And that is also because compressor contactors are tied to high/low pressure switches?
Dude pls don’t stop making videos I am learning a lot. I really do like where you are explaining where the parts are located at
i'm about to replace one because i think is stuck closed and can't open flow refrigerant to the coil, and its exactly the same evaporator i'm dealing with and same valve like your video
Good stuck man! Im actually jumping into learning refrigeration now and this video definitely helped
I'm a HVAC resi.tech and I want to learn refrigeration, any suggestions?
solenoid magnet is what I was looking for! thanks for showing!
I'd like you to expand on the opinion that this kind of control strategy is good for the compressor (e.g. compared to switching the compressor on/off by a thermostat). Is could be so, but the statement should be more like "In cold climates and compressors without sump heaters, where during long idle periods refrigerant can migrate to sump/oil, this control strategy prevents oil foaming/compressor slugging." I know that both control strategies are common and none must really be defended to a customer. What I mean is engineers' talk. I'd be glad to have a better picture that an average tech.
The LLSV & the TXV Inlet looks like they’ve Silver Bearing Soldered (SB8), but the TXV EQ outlet looks to be 15% Sil-Phos Brazed. Is that correct?
Thanks bro 🙏 can u please help me out how does the rack work
Great explanation. Are the liquid line solenoid and thermostat wire with the evaporator fans or are they wired separately.
Great video. magnetic solenoid is a great tool to have.
Hi thanx for the video...can u plz tell exact mounting position of solenoid valve to stop refrigerent flow from the evaporator..where to install after filter dryer befor expantion valve. Plz
Ok you showed one way to know if the solenoid is getting energized by the resultant magnetic field on the screwdriver. Now my question is can the valve stick or get stuck even if the solenoid is energized? IE: valve not getting thrown...
And if you use the meter ( check for voltage coming from the thermostat ) then check for magnetic field. No magnetic field means an open coil in the solenoid and then deduce "bad solenoid", yes?
Lol how much voltage would you get across the coil if its good? Sitting here im thinking you'd get a pretty low voltage reading across a conducting coil...whats the resistance of the coil? Notes I'd put on my schematic maybe, X volts if open and Y volts if not open.
I'm guessing the refrigerant is the lubricant for the valve? If the valve is opened and closed too many times when refrigerant has leaked out, can the valve get stuck? I guess you'd get an idea the valve is stuck if the evaporator doesn't get cold?
If the valve was stuck closed, would it give you low evaporator pressure and high head pressure?
Yea when the system pumps down thats what happend or in what u ask
Head pressure is determined by condenser ambient temperature (small refrigerant mass flow = low thermal power, impact of fan operation is low).
Suction pressure is determined by type of compressor and its wear as well as control devices.
Does the line solenoid value work in conjunction with the low pressure switch.
No.he work freely.he got comend
From the controler when the valve open then the low presure switch on the contactor and the comp start to work
@@liranzozot4376when the controller does not send a signal to liquid solenoid valve, then would the compressor turn off right away due low pressure on suction as a result of no refrigerant migration? And that is also because compressor contactors are tied to high/low pressure switches?
where is expansion valve....is it possible to control liquid or expand without expansion valve..?
I believe electronic expansion valves control the flow like liquid line solenoid valves and also do liquid expansion.
where does the arrow go on the solenoid to the condensor or the distrubitor
Evaporitor(sorry if my english is no good)if you install it worng u gone hear bad noise like somthing broken
Well explained, thank for the explanation.
This was a great video, thanks!!
What's the voltage of the coil supplied? 12V, 24V or 120V? Thank you.
Nice vid man👍👍
Thank you the video
Oh that's what that's for. Thanks
thanks
Y👍