In my opinion a waste of time. Just throttle the liquid thru your gauge manifold and keep an eye on the compressor.
Just a posting to get everyone's take on Kwik-charger, the liquid charging adapters. Are they time savers, worth the money or just go cheap and throttle ?
In my opinion a waste of time. Just throttle the liquid thru your gauge manifold and keep an eye on the compressor.
I had one when I first stared out. It cracked up the side and I just learned to throttle the refrigerant.
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I think that, in general, people are way too concerned about liquid entering compressors.
#1. Your manifold, hoses, schraeder fittings and adaptors and depressors are very restrictive to flow. These restrictions are the reason we don't evacuate through them. They help us, however, when we charge through them.
#2. Compressors are, for the most part, refrigerant cooled. This means that the routing of the gas through the compressor goes through the motor BEFORE it gets to the cylinders and valves where it can cause real damage. Most new compressors in AC equipment are scrolls anyway and they are very tolerant of liquid.
Guys, I charge big equipment and, as such, have developed a bit of a ham-handed approach to charging. My idea of SLOW charging is to flip a drum upside down and charge through my manifold with both hand wheels wide open. On small equipment, I make the concession of using a single hose.
It really isn't as big a deal as it is made out to be MOST of the time.
Knowing the difference, however, is critical.
my boss thinks its possible to repeal the laws of physics
I bought one of those adapters five years ago and it is still in the package in one of my tool bags somewhere modern scrolls are pretty tolerant to liquid i wont buy another one im not sure why i bought the one i have
I must be an overly cautious old fart. I have one of these (see my avatar) and use it all the time. I love just cranking the manifold valve, and letting the Kwik Charge do the work. I don't have to worry about if I have it throttled right. Also saves me from the possibility of wearing out or damaging the seats and seals in the manifold.
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Waste of time and money...throttling through your gauge manifold does a perfectly good job with liquid charging.
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I USUALLY charge with the cores pulled out, depressors removed, manifold wide open, directly into suction.
Ditto. We do big equipment as well and rarely make any concession for worrying about the liquid. Hook it up, open the valves and let it go. If we used one of those little things on some of the larger systems, we would never get the whole charge in. Most of the time, we pump as much of the charge as possible in with a recovery machine and then trim it, but sometimes that trim charge can be 50 or 60 lbs.