new refrig.

[ahc&r]

Cap tubes plugged from new refrigs, 404a, 134a, 409a. Generally after High discharge episode.

[gdavis]

and your point would be what? if you keep the condensor clean you wont have many problems.....you bake the oil and then it clogs the tubes. whats new?

[condenseddave]

Is there a question in here somehere????

[Freezeking2000]

Tadaa..........maintain it and it works?

[rocket]

from what I have heard, it is the POE lubricant not the gas

at high temps polymer drops out from POE, the stuff is too fine for driers to pick up. It drops out of suspension at pressure drops (TXV, cap tubes, etc.)

a more refined POE has been developed that eliminates this problem, but many months before available.

Many guys are replacing the POE with Alkabenzyne and claim it solves the problem (high temp 134a only)

I have gotten the preceding comments from highly reliable sources, but I have no firm undisputed examples. I am not Dan Rather. I do know 2 large resturant equipt suppliers that routinely drain POE and replace with Alkabenzeyne and Shrieve Chem (makers of Zerol A/B) claim it works well in high temp 134a systems.

[condenseddave]

Synthetic alkylates, and even MOs will work with HFCs on most small, close soupled systems. I've done it a few times, with no adverse effects.

I wouldn't do it on anything with a long piping run, nor would I even consider it on a compressor that has an oil pump, though.

[coolprod]

FYI,
I've also been told that manufactures are having problems with the POE oils off the lines. They are getting moisture in the systems right on the production lines so it is possible to have plugged cap tubes on new systems!!

[westcoast refer man]

ahc&r's comment about plugged cap tubes, jogged my memory about something I had read in the NEWS. I went thru my big stack and found the comment in the Nov 4, 2002 edition on page 16. The guy that wrote in to the NEWS talks of having wide spread problems with cap tubes plugging, and quote-"we began using Sporlan C-052S driers. This almost eliminated the problem". Anyway, I thought I would mention this as this problem has been around for a while now and this contractor had good results with this drier.

[thehumid1]

westcoast refer man-"...jogged my memory about something I had read in the NEWS. I went thru my big stack and found the comment in the Nov 4, 2002 edition on page 16."

With memory like that you should be on jeopardy. That's scary.

[btu-mafia]

Usually on the cap tube systems they use a loose-fill copper-spun drier. These do an inadequate job of keeping the system clean. I would recommend using a Sporlan
C-032-CAP-T to prevent this from happening and to clean up an existing system.

[Diceman]

I need some west coast reefer........man!!!!!!!

[Diceman]

My new fridge has only like 3 oz of 134 in it??Weird, and no condenser to clean??

[gdavis]

Diceman has to bring a household refrigerator in the picture.......we dont mess with them....only commercial refrigeration here.

[ahc&r]

thank you all for responding,
thaught I MUST use POE with 134a, 404a?
Other refrig I understand can utilize multiples

[westcoast941]

Reminds me of the nightmares we had faced when 134A had been introduced in the Frigidaire upright modeled freezers sold under various brand names.

Doing away with the exterior condenser coils and enclosing them in the cabinet. High ambient temps being in the garage or any other unconditioned space. Or encased against a wall on one side boxes on the other and oh yeah that 3 feet on top would be great to store plastic containers full of stuff.

Frigidaire introduced an after market condensr fan to be mounted in the compressor alcove. This sometimes worked ok if we got the call because was noted the compressor shutting down on high heat and before the oil was cooked and 'gelled' inofrming the H/O of the need to allow air flow around that cabinet.
Introduced an after market condenser coil, with an electric cabinet heater to be vacuum sucked thru the hot gas loop and tied into the compressor run circuit.

The whole concept was bad from the beginning when a H/O had hundreds of dollars of frozen meats in those boxes and their smells. Never got rid of those smells

I would willingly derect the H/O to a new freezer type if Frigidaie hadn't captured the residential market

[condenseddave]

Originally posted by ahc&r
thank you all for responding,
thaught I MUST use POE with 134a, 404a?
Other refrig I understand can utilize multiples


If you think it, then stick with it. I just know from my own experiences of the past 13 years or so of dealing with the "NEW" ( :rolleyes: ) gases and oils, what has worked well for me.......

[Dowadudda]

I see the problems, due to people not maintaining stuff. There's nothing wrong with either the gasses or the oils..

[condenseddave]

And, being 14 years later, you can quit referring to 134a as "new". Trust me.

[mikep]

It is all about the oil. We found out years ago that the manufacturers of POE added to much corrosion inhibitor in their oils in order to pass Copeland testing. The inhibitor is a solid material dissolved in the POE. It eventually turns into a plaque. We have not had reaccurances since switching to Emkarate, especially with low temp equip.