13 SEER Splits not cooling!??!

Posted by on August 8, 2006, 9:40 pm

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

Posted by Stormin Mormon on August 8, 2006, 10:02 pm

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?

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
.

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

Posted by Barry on August 8, 2006, 10:54 pm

On Wed, 09 Aug 2006 02:02:51 GMT, "Stormin Mormon"

>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?

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

Barry

Posted by Stormin Mormon on August 9, 2006, 8:22 am

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

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
.

On Wed, 09 Aug 2006 02:02:51 GMT, "Stormin Mormon"

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?

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

Barry

Posted by Noon-Air on August 9, 2006, 10:05 am

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

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!!!!

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