13 SEER Splits not cooling!??!

Hello all..

I work and live in Memphis,and My company has been installing 13seer units,this year,Well it seems that we get alot of call backs that the units are not cooling as well as the H/O old 30 year old 10 SEER units..

Now I dont know if the installers are pulling vacuums or not,and I am sure that the units are not charged by sub cooling either,So those are a couple of factors to take into consideration.. It just seems that these new 13 SEER units are over sensitive to hot return air,hot outside tempratures,and proper freon charge..

Now on the older 10 SEER units,it seems that one could have a open return in the attic,not pull a vacuum,and overcharge by 3 pounds,and the thing would still cool the H/O's house down.. And these new 13 SEER units,we have to lower the fan speeds,install TXV's on every last one of them etc etc...

Basically I am just curious if any other service techs out there in the HVAC world have had problems with these.. I have heard alot of differnt things from other's,But not enough :P The new 13 SEER are supposed to have the same capacity as the old 10 SEER,but have thinner evaps etc.. Gonna stop here,untill I get a response for the question at hand.... "Do they cool as well" ??

Russ

Reply to
russell52
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The couple of 13 seeers I've worked on, they tend to have rotary compressor. LOTS of fins for the condensor. The new condensing units are much larger. And also they have TXV on the evaporator coil.

With the TXV, they are supposed to be some what less sensetive to refrigerant charge. The ones I've worked with come with a freon charge in the condensing unit. Only have to put some gas in the lines to make up for long line sets.

Makes me wonder if your guys need some more brazing or Stay-Brite practice, if one of them is making leaky fittings. I presume you send a service guy otu to follow up on complaints. What do the service guys say?

Reply to
Stormin Mormon

Sounds like somebody's company needs a little training.

I guess you and your buddies will have to learn another charging method other than .........."beer can cold".

What! Units being sensitive to high return temps, high outdoor temps and refrigerant charges? Simply unheard of. Makes no sense at all.

Years and years ago you could use a Buick automobile to knock down a brick wall. Wanna try that with a Yugo?

Better

Bubba

Reply to
Bubba

Your gonna have to tell me what manufacturer is using rotary compressors iin their air conditioning systems??????

Barry

Reply to
Barry

Amen brother!

Reply to
Oscar_Lives

ok, I'll take your word for it

There's your problem... incorrect installation

You been down here lately?? I been following behind you and recovering all that excess refrigerant... Post your address so I know where to send the bill for recycling and hazardous waste disposal..... go back to school so you can learn how its supposed to be done.

When they are correctly sized, and properly installed, they are much more efficient and work a lot better than 10 SEER.

Reply to
Noon-Air

Yeah, and years ago the old industrial machinery could be troubleshot with a cheapo Radio Shack multi meter. Nowadays you need a CAN bus analyzer and harmonic analyzers to troubleshoot because the new machinery is subject to electrical noise and interference. Times have changed. You have to be more educated and do a much more professional job. Self pride is #1. And, education is different than brilliance. Having both is best. ( I'm not really a DIMwit, just very humble)

You can't get away with sloppy work and have good results. (not that you ever could).

Your message is very troubling; I hope you are an office worker and not involved in doing any actual HVAC work in your company.

Bob

Reply to
DIMwit

Rotary?? Your freaking retard. Still playin with "window shakers", eh? TXV's make units less sensitive? Double retard. All that means is now you are able to cram even more refrigerant into a system before it will puke on you. Stormy, you are a complete and udder idiot and you should be banned from ever getting within 1000 ft of an air conditioner. Do us all a favor and take yourself down to the river, tie a cement block around your neck and jump in. Bubba

Reply to
Bubba

The Rheem condensing units I've helped install have had rotary compressors.

Reply to
Stormin Mormon

We have recently had to spend about $13,000 per truck to outfit out guys with retrofritzulator wide spectrum analyzers. Seems that a mistuned condensing unit throws a heck of a harmonic misconvergence, and you really need precise equipment to be able to tune the valves. I don't think those CAN bus analyzers work on some of the new equipment. Course, they are showing up on Ebay, now that the retrofritzulator technology is going digital. The old analog ones can be really great quality. Just have to be more gentle, the swing meters damage easily.

On the other hand, Dimwit and I could be having some fun with you.

Reply to
Stormin Mormon

Really??? And all this time I thought all of the Rheem resi stuff manufactured after '95 had *SCROLL* compressors. I guess those stickers that say "SCROLL INSIDE" were just a ruse???

GET A CLUE you ignorant POS!!!!

Reply to
Noon-Air

Per truck? How about your ragged out old Pinto?

Like we do with you? Oh wait, that's not fun, we're serious.

Reply to
HeatMan

Bubba wrote

Stormy, you are a complete and udder idiot.

=============

Does that make him a bovine hack?

Reply to
Gideon

Ya see, Stormy, even though you are trying to have fun, you sound like a complete moron to me too now. CAN bus analyzers and instruments to measure harmonic distortion in power lines are not fairy tale words. They are real to my industry. you just go ahead with your....... are you from a cabbage patch or an escapee from the looney toon barn? You're not a real person are you?

Oh yeah: hee hee

bob

Reply to
DIMwit

Thanks for beating me to the reply, Bob (-;.

I would be willing to bet the various bus analyzers I use (whether that be CAN, MODbus, LON, AB DH+, or even Ethernet/Ethernet radio) probably cost more than poor Stormy's car.

Add in a couple of good spectrum analyzers and the whole kit-n-kaboodle probably costs more than his house.

Bob, I'd be interested in you use of CAN if you're utilizing it in HVAC. The whole world seems to going to Ethernet these days...

Jake

Reply to
Jake

Stormin Mormon posted for all of us... I don't top post - see either inline or at bottom.

Man o' man you been shaking windows too long Stumpy. Even I know they are scroll compressors! Rotarys are used in your world of the windows shakers. You just never engage that "brain" of yours to either learn or think do you?

Reply to
Tekkie®

Jake posted for all of us... I don't top post - see either inline or at bottom.

It ties everything into a nice packet...

Reply to
Tekkie®

posted for all of us... I don't top post - see either inline or at bottom.

So that's what; 100% of respondents think Stumpy should stay out or at least shut up and never post again.

Reply to
Tekkie®

But it goes so damn fast I can't get it open.

Jake

Reply to
Jake

holy shit cut the guy some slack. he has said in here more than once that he is a new tech. anybody with any experience knows this means there is a learning curve for him. instead of stomping on the guy, help him learn.

Reply to
Nathan W. Collier

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