i recently had to have the condensing unit changed out, in my home.
the unit is a 3 ton 13 seer amana condenser. i don't know what the
evaporator brand is, but it's about a 10 seer with the same tonnage.
The amana unit is only about 2 months old, but when it runs, sometimes
it squeals, sometimes the fan does not come on, and sometimes it acts
like it's straining to compress the refrigerant. it acted fine, for
about a month, then, one day, i walked outside, the compressor was
running, but the cooling fan was off, and the compressor was
squealing. ever since then, it exhibits the signs above. i had an a/c
tech come out and look at the unit. he advised that the condenser is
too inefficient for the evaporator, and the refrigerant is reaching
the compressor in a liquid state.

now, i know the basics of how refrigeration works, but i'm no expert,
although, i'm a quick study.i do build computers, so i know how to
read a wiring schematic. i noticed that the condenser has a 2 speed
fan, so i had him buy pass the low speed, to make sure that it wasn't
the speed switch. so far, i have not noticed the compressor running
with the fan off, but it has only been a day.

does the guy's theory about liquid refrigerant reaching the compressor
hold "liquid refrigerant" he didn't take any pressure readings from
the lines.

does the guy's theory about liquid refrigerant reaching the compressor
hold "liquid refrigerant" he didn't take any pressure readings from
the lines.

Without readings, he was flying by the seat of his pants.

talkinggoat wrote:

i recently had to have the condensing unit changed out, in my home.
the unit is a 3 ton 13 seer amana condenser. i don't know what the
evaporator brand is, but it's about a 10 seer with the same tonnage.
The amana unit is only about 2 months old, but when it runs, sometimes
it squeals, sometimes the fan does not come on, and sometimes it acts
like it's straining to compress the refrigerant. it acted fine, for
about a month, then, one day, i walked outside, the compressor was
running, but the cooling fan was off, and the compressor was
squealing. ever since then, it exhibits the signs above. i had an a/c
tech come out and look at the unit. he advised that the condenser is
too inefficient for the evaporator, and the refrigerant is reaching
the compressor in a liquid state.

now, i know the basics of how refrigeration works, but i'm no expert,
although, i'm a quick study.i do build computers, so i know how to
read a wiring schematic. i noticed that the condenser has a 2 speed
fan, so i had him buy pass the low speed, to make sure that it wasn't
the speed switch. so far, i have not noticed the compressor running
with the fan off, but it has only been a day.

does the guy's theory about liquid refrigerant reaching the compressor
hold "liquid refrigerant" he didn't take any pressure readings from
the lines.


You have problems!
http://www.udarrell.com/proper_cfm_b...syste ms.html
- udarrell

--
WISDOM PRINCIPLE DIRECTED EMPOWERMENT COMMUNICATIONS -
THE REAL POLITICAL ISSUES and WISDOM BASED PEOPLE EMPOWERMENT
http://www.udarrell.com/
http://www.udarrell.com/my_pages2.htm
http://www.udarrell.com/recognizing_real_enemies.html
http://jesuschristsavior.net/Beatitudes.html
Reality Is Not An Easy Thing To Accept!

On Apr 17, 4:41 pm, talkinggoat wrote:
i recently had to have the condensing unit changed out, in my home.
the unit is a 3 ton 13 seer amana condenser. i don't know what the
evaporator brand is, but it's about a 10 seer with the same tonnage.
The amana unit is only about 2 months old, but when it runs, sometimes
it squeals, sometimes the fan does not come on, and sometimes it acts
like it's straining to compress the refrigerant. it acted fine, for
about a month, then, one day, i walked outside, the compressor was
running, but the cooling fan was off, and the compressor was
squealing. ever since then, it exhibits the signs above. i had an a/c
tech come out and look at the unit. he advised that the condenser is
too inefficient for the evaporator, and the refrigerant is reaching
the compressor in a liquid state.

now, i know the basics of how refrigeration works, but i'm no expert,
although, i'm a quick study.i do build computers, so i know how to
read a wiring schematic. i noticed that the condenser has a 2 speed
fan, so i had him buy pass the low speed, to make sure that it wasn't
the speed switch. so far, i have not noticed the compressor running
with the fan off, but it has only been a day.

does the guy's theory about liquid refrigerant reaching the compressor
hold "liquid refrigerant" he didn't take any pressure readings from
the lines.

i just spoke to someone regarding this issue, that i know i can trust.
he advised that if the evaporator were not vaporizing the refrigerant,
the compressor would be making a chattering sound, from the valves,
not a squealing sound. he seems to think that it overheated or it is
not getting oiled properly.

the ac tech is trying to say that because the condenser is seer 13 and
the evaporator is seer 10, it is causing problems with the compressor
by not allowing the refrigerant to vaporize.

as far as i know, seer is just a measurement of efficiency, not a
measurement of btu or tonnage, and would not have the same effect as
putting a 4 ton condenser on a 3 ton evaporator, for example. am i
correct in assuming this?

my condenser and evaporator are both 3 ton units.

On 17 Apr 2007 17:54:15 -0700, talkinggoat
wrote:

On Apr 17, 4:41 pm, talkinggoat wrote:
i recently had to have the condensing unit changed out, in my home.
the unit is a 3 ton 13 seer amana condenser. i don't know what the
evaporator brand is, but it's about a 10 seer with the same tonnage.
The amana unit is only about 2 months old, but when it runs, sometimes
it squeals, sometimes the fan does not come on, and sometimes it acts
like it's straining to compress the refrigerant. it acted fine, for
about a month, then, one day, i walked outside, the compressor was
running, but the cooling fan was off, and the compressor was
squealing. ever since then, it exhibits the signs above. i had an a/c
tech come out and look at the unit. he advised that the condenser is
too inefficient for the evaporator, and the refrigerant is reaching
the compressor in a liquid state.

now, i know the basics of how refrigeration works, but i'm no expert,
although, i'm a quick study.i do build computers, so i know how to
read a wiring schematic. i noticed that the condenser has a 2 speed
fan, so i had him buy pass the low speed, to make sure that it wasn't
the speed switch. so far, i have not noticed the compressor running
with the fan off, but it has only been a day.

does the guy's theory about liquid refrigerant reaching the compressor
hold "liquid refrigerant" he didn't take any pressure readings from
the lines.

i just spoke to someone regarding this issue, that i know i can trust.
he advised that if the evaporator were not vaporizing the refrigerant,
the compressor would be making a chattering sound, from the valves,
not a squealing sound. he seems to think that it overheated or it is
not getting oiled properly.

the ac tech is trying to say that because the condenser is seer 13 and
the evaporator is seer 10, it is causing problems with the compressor
by not allowing the refrigerant to vaporize.

I know nothing but this doesn't strike me as right. Also that he
didn't make any pressure measurements strikes me as ridiculous.

Combine your first and second posts, and post to alt.hvac or
something like that. I hear they are prima donnas there, but I think
they will like your question.

as far as i know, seer is just a measurement of efficiency, not a
measurement of btu or tonnage, and would not have the same effect as
putting a 4 ton condenser on a 3 ton evaporator, for example. am i
correct in assuming this?

That would be my guess. I have no real idea if we are correct, but I
was thinking just like you are.

I only know one AC, my own, and I don't know it too well, but I'm
pretty sure it is wired so that whenever the compressor is on, the fan
is on too. That is also clear from the wiring diagram that is either
in the papers I have or inside the cover of the compressor box.

my condenser and evaporator are both 3 ton units.

BTW, before you post to alt.hvac, where they don't just answer
everyone, you should learn to capitalize where the rules require it.

A) Not every font makes the difference between a comma and a period
clear, so I had very little idea of what you said in your first, first
paragraph, which I quote below.

B) You look like a blooming, self-centered adolescent idiot who was
too stupid or lazy to learn how to use capitals***, or -- and please
tell me this isn't true -- thinks he is expresssing himself, thinks he
has something worth expressing, by being different or not following
the rules. The rules were created to make text easier to read, and
it's even worse here because you're coming for favors. Don't be a
double jerk.

***In which case, trying to help you with your AC will likely be
futile.


You wrote. afaict, contradicting yourself in the process:
i recently had to have the condensing unit changed out, in my home,
the unit is a 3 ton 13 seer amana condenser, i don't know what the
evaporator brand is, but it's about a 10 seer with the same tonnage,
The amana unit is only about 2 months old, but when it runs, sometimes
it squeals, sometimes the fan does not come on, and sometimes it acts
like it's straining to compress the refrigerant, it acted fine, for
about a month, then, one day, i walked outside, the compressor was
running, but the cooling fan was off, and the compressor was
squealing. ever since then, it exhibits the signs above, i had an a/c
tech come out and look at the unit, he advised that the condenser is
too inefficient for the evaporator, and the refrigerant is reaching
the compressor in a liquid state.


Some of your sentences are too long also

the evaporator needs to be clean so the freon goes to a gas . if the
condenser fan isnt running your not pulling the heat off the freon
before its pumped by the compressor.

http://www.minibite.com/america/malone.htm

On Apr 18, 7:00 am, wrote:
the evaporator needs to be clean so the freon goes to a gas . if the
condenser fan isnt running your not pulling the heat off the freon
before its pumped by the compressor.

http://www.minibite.com/america/malone.htm

yes, the evaporator does need to be clean, otherwise the refrigerant
won't vaporize, but it is clean. i took it out and checked it myself.

the fan not running would make the a/c far less efficient and would
put another mark against the compressor overheating, but it would make
it even less likely that the compressor is receiving a liquid from the
evaporator. as soon as the freon passed the expansion valve, it would
be hot, and start to boil.

if the evaporator could not do its job in vaporizing the refrigerant,
wouldn't it freeze up?

writes:
the evaporator needs to be clean so the freon goes to a gas . if the
condenser fan isnt running your not pulling the heat off the freon
before its pumped by the compressor.

The refrigerant goes to the condenser *after* the compressor - it's on
the high pressure side. The condenser's job is to take high-pressure
hot gas and convert it to high-pressure cooler liquid. The condenser
fan should either start with the compressor, or it should start a few
seconds later under the control of a pressure switch as the high-side
pressure climbs after compressor startup.

Dave

You probably got what you paid for. You should have had the evap changed
with the OD. Amana is made by Goodman. Where is the contractor that
installed it. Why are you having to alter a brand new unit to make it work.
Pay some one to come out and match your system and reinstall it properly,
then sue the hack who ripped you off!

--
Bob Pietrangelo
(home)
(work)
www.comfort-solution.biz





"talkinggoat" wrote in message
oups.com...
i recently had to have the condensing unit changed out, in my home.
the unit is a 3 ton 13 seer amana condenser. i don't know what the
evaporator brand is, but it's about a 10 seer with the same tonnage.
The amana unit is only about 2 months old, but when it runs, sometimes
it squeals, sometimes the fan does not come on, and sometimes it acts
like it's straining to compress the refrigerant. it acted fine, for
about a month, then, one day, i walked outside, the compressor was
running, but the cooling fan was off, and the compressor was
squealing. ever since then, it exhibits the signs above. i had an a/c
tech come out and look at the unit. he advised that the condenser is
too inefficient for the evaporator, and the refrigerant is reaching
the compressor in a liquid state.

now, i know the basics of how refrigeration works, but i'm no expert,
although, i'm a quick study.i do build computers, so i know how to
read a wiring schematic. i noticed that the condenser has a 2 speed
fan, so i had him buy pass the low speed, to make sure that it wasn't
the speed switch. so far, i have not noticed the compressor running
with the fan off, but it has only been a day.

does the guy's theory about liquid refrigerant reaching the compressor
hold "liquid refrigerant" he didn't take any pressure readings from
the lines.

On Apr 17, 11:23 pm, mm wrote:

BTW, before you post to alt.hvac, where they don't just answer
everyone, you should learn to capitalize where the rules require it.

A) Not every font makes the difference between a comma and a period
clear, so I had very little idea of what you said in your first, first
paragraph, which I quote below.

B) You look like a blooming, self-centered adolescent idiot who was
too stupid or lazy to learn how to use capitals***, or -- and please
tell me this isn't true -- thinks he is expresssing himself, thinks he
has something worth expressing, by being different or not following
the rules. The rules were created to make text easier to read, and
it's even worse here because you're coming for favors. Don't be a
double jerk.

"in your first, first paragraph" - "expresssing" LOL

Not to mention your misused commas.

Or your double spacing, moron.

On Apr 17, 8:54 pm, talkinggoat wrote:
On Apr 17, 4:41 pm, talkinggoat wrote:



i recently had to have the condensing unit changed out, in my home.
the unit is a 3 ton 13 seer amana condenser. i don't know what the
evaporator brand is, but it's about a 10 seer with the same tonnage.
The amana unit is only about 2 months old, but when it runs, sometimes
it squeals, sometimes the fan does not come on, and sometimes it acts
like it's straining to compress the refrigerant. it acted fine, for
about a month, then, one day, i walked outside, the compressor was
running, but the cooling fan was off, and the compressor was
squealing. ever since then, it exhibits the signs above. i had an a/c
tech come out and look at the unit. he advised that the condenser is
too inefficient for the evaporator, and the refrigerant is reaching
the compressor in a liquid state.

now, i know the basics of how refrigeration works, but i'm no expert,
although, i'm a quick study.i do build computers, so i know how to
read a wiring schematic. i noticed that the condenser has a 2 speed
fan, so i had him buy pass the low speed, to make sure that it wasn't
the speed switch. so far, i have not noticed the compressor running
with the fan off, but it has only been a day.

does the guy's theory about liquid refrigerant reaching the compressor
hold "liquid refrigerant" he didn't take any pressure readings from
the lines.

i just spoke to someone regarding this issue, that i know i can trust.
he advised that if the evaporator were not vaporizing the refrigerant,
the compressor would be making a chattering sound, from the valves,
not a squealing sound. he seems to think that it overheated or it is
not getting oiled properly.

the ac tech is trying to say that because the condenser is seer 13 and
the evaporator is seer 10, it is causing problems with the compressor
by not allowing the refrigerant to vaporize.

as far as i know, seer is just a measurement of efficiency, not a
measurement of btu or tonnage, and would not have the same effect as
putting a 4 ton condenser on a 3 ton evaporator, for example. am i
correct in assuming this?

my condenser and evaporator are both 3 ton units.

I don't know what your problem is, but I do know that seer has nothing
to do with it.

And, you can use a bigger evaporator with a smaller condenser, but not
vice verse.

: i recently had to have the condensing unit changed out, in
my home.
: the unit is a 3 ton 13 seer amana condenser. i don't know
what the
: evaporator brand is, but it's about a 10 seer with the same
tonnage.
CY: Matched for tonnage is good.

: The amana unit is only about 2 months old, but when it
runs, sometimes
: it squeals, sometimes the fan does not come on, and
sometimes it acts
: like it's straining to compress the refrigerant. it acted
fine, for
: about a month, then, one day, i walked outside, the
compressor was
: running, but the cooling fan was off, and the compressor
was
: squealing. ever since then, it exhibits the signs above.
CY: Something seriously wrong. On most AC, the fan should come on
at the same time as the compressor.

i had an a/c
: tech come out and look at the unit. he advised that the
condenser is
: too inefficient for the evaporator, and the refrigerant is
reaching
: the compressor in a liquid state.
CY: A new outdoor unit would have a new condensor, which is as
efficient as you're gonna get. Makes me wonder if the indoor unit
is a problem. That could cause liquid to flood back to the
compressor.

:
: now, i know the basics of how refrigeration works, but i'm
no expert,
: although, i'm a quick study.i do build computers, so i know
how to
: read a wiring schematic. i noticed that the condenser has a
2 speed
: fan, so i had him buy pass the low speed, to make sure that
it wasn't
: the speed switch. so far, i have not noticed the compressor
running
: with the fan off, but it has only been a day.
CY: yes, the outdoor fan should run with the compressor.

:
: does the guy's theory about liquid refrigerant reaching the
compressor
: hold "liquid refrigerant" he didn't take any pressure
readings from
: the lines.
CY: It's possible. If there is liquid coming back to the
compressor, it sounds like your indoor evaporator is dirty, or
low air flow. Or both.

:
: i just spoke to someone regarding this issue, that i know i
can trust.
: he advised that if the evaporator were not vaporizing the
refrigerant,
: the compressor would be making a chattering sound, from the
valves,
: not a squealing sound. he seems to think that it overheated
or it is
: not getting oiled properly.
CY: I'm with you on the evaporator part. As to not oiled, well,
the oil is mixed in with the freon.

:
: the ac tech is trying to say that because the condenser is
seer 13 and
: the evaporator is seer 10, it is causing problems with the
compressor
: by not allowing the refrigerant to vaporize.
CY: Or, the old evaporator may be totally dirty.

:
: as far as i know, seer is just a measurement of efficiency,
not a
: measurement of btu or tonnage, and would not have the same
effect as
: putting a 4 ton condenser on a 3 ton evaporator, for example.
am i
: correct in assuming this?
CY: I've heard that it's not good to put a high seer condensor on
an older evaporator. Sounds like one of those cases.

:
: my condenser and evaporator are both 3 ton units.
CY: Best of luck. Let us know how things work out.
: