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here one for ya
jim lockard
Member Posts: 1,059
The time we forgot to install the piston for the flow check coil we got the same reading. Normal head with high suction. J.Lockard
0
Comments
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Heres one for ya.
Just got back from a call that a buddy of mine ask me to help him on.
This system has been in place for five years now.
Get there and find high suction pressure,low head pressure and,the compressor was screaming.Liquid line sweating.
Subcool temp 1 degree...superheat 0 degrees, high amp draw.
So what did I find?0 -
A place
that no one would like to be? or an over charged A/C unit?0 -
Thats was
one part of the problem.I pulled out about five pounds of
freon and the compressor started to reduce in noise.
The superheat climb to about 40 with no change in subcool temps or head pressure.
The oda was 90 degree and I had a LLT around 89 to 90 with
still some sweating on the liquid line all the way to the
airhandler.
Hmmmmmmmmmmm!0 -
I know this one!
You found a squirrel dropping lodged in the inlet to the liquid line filter/drier!
Am I correct?
71Gibby0 -
What is it?
Possibly broken discharge reeds blocking the liquid line or a restricted filter drier "in" the cond unit?0 -
This
is what I found.It had a RFCIV control at the evaporator that was put in backward.
So when the refrigerant flow the piston could not be force forward and the piston could not be pressed in the seat so
the refrigerant would not take the path it was intended to.
Which for me could only mean that the refrigerant could not
be reduce in pressure and there for the boiling point could
not be reduce.
Anyway we put the piston in the correct way and walk away
with a 14 degree superheat and a 7 degree subcool temp and
no flashing in the liquid line.
0 -
Awesome
Great find Don I started to ask if you did a pump down test which would have elimated the compressor. I was thinking about a stuck piston and trying to figure how it would get stuck (with A/C the piston would never move, not like a heat pump). So for the last 5 years the piston has been backwards I did not know they would fit backwards so someone jamed it in there. Best Wishes J.Lockard0 -
Heres One
COOL!0 -
Excellent Catch
Great catch, Don...
I'm so proud of you!0 -
Excellent Catch
Great catch, Don...
I'm so proud of you!0
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