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flogprousa7368

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Discussion starter · #1 ·
Now just curious but let's say you find that an R-22 system is over charged (-2 superheat). Well your lovely recovery machine won't start and have no idea why. So you just do what you have to and bleed it out. Should it be bled out of liquid side or suction line? Or does it even matter? And one more thing, why would you have 22 locking caps on a 410 condenser. I only assume they make them differently for a reason no?
 
Is this a setup?

If you have to, bleed the extra refrigerant into a plastic bag and then take that to the shop where it can be properly recovered by functioning equipment.
 
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I'm kind of just kidding, but really people used to do this.

R22 isn't a blend, so it makes no difference if you "recover" gas or liquid.

If all you have is the wrong color of locking caps, that's all you have. What do you want from me?

Oh, and there's no such thing as -2 degrees superheat. Your gauge and/or thermometer is out of calibration. You might want to check into that.


:cheers:
 
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Discussion starter · #6 ·
Oh that's just wonderful. Suction pressure showed 42 degrees saturation and my temp clamp read 40 and even went as low as 39 so what would that be? My temp clamp and gauges aren't even a year old.
Locking caps for 22 require a key to take them off same with 410. I thought that since you couldn't use just one key for both that maybe you were not able to mix match them.
 
Now just curious but let's say you find that an R-22 system is over charged (-2 superheat). Well your lovely recovery machine won't start and have no idea why. So you just do what you have to and bleed it out. Should it be bled out of liquid side or suction line? Or does it even matter? And one more thing, why would you have 22 locking caps on a 410 condenser. I only assume they make them differently for a reason no?
So is it a R22 or R410a system ?
 
If you're going to do that, remember to used crushed ice and as little water as possible. Preferably, you want the level of the water below the level of the crushed ice. Seriously.


Blow it off the liquid side into a recovery tank.

Stick your clamps in ice water then calibrate to 32 degrees.
 
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Discussion starter · #12 ·
What do you mean humping around gauges for a living? Let's just forget about the bleeding out of refrigerant cuz no one should be doing that. I just don't want to believe that my temp clamp which I paid 200 bucks for is giving me a wrong temperature reading. I'm still trying to fully understand as well as take all the proper steps to accurately determine refrigerant pressures so I'm not telling the customer that they are low or over charged when in fact they may not be. I don't want to be the technician who only looks at what the pressures should be for that type of refrigerant.
 
Dick Wirz-Commercial Refrigeration for the AC Technician. RSES.
Do you "carry" a set of gauges that you use all of the time?
Some say that having a 2*SH is actually flooding back to the comp during the metering device "settling in" time and use. So you are describing a "floodback", thats all.
 
What do you mean humping around gauges for a living? Let's just forget about the bleeding out of refrigerant cuz no one should be doing that. I just don't want to believe that my temp clamp which I paid 200 bucks for is giving me a wrong temperature reading. I'm still trying to fully understand as well as take all the proper steps to accurately determine refrigerant pressures so I'm not telling the customer that they are low or over charged when in fact they may not be. I don't want to be the technician who only looks at what the pressures should be for that type of refrigerant.
What kind of temp probe and gauges are you using?
 
Why would I be using a recovery machine on an operating system to pull a little charge? Like the high side cant push into the recovery tank?
 
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Now just curious but let's say you find that an R-22 system is over charged (-2 superheat). Well your lovely recovery machine won't start and have no idea why. So you just do what you have to and bleed it out. Should it be bled out of liquid side or suction line? Or does it even matter? And one more thing, why would you have 22 locking caps on a 410 condenser. I only assume they make them differently for a reason no?
I've had this scenario I bled it from high side into my recovery tank

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