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Posted by Stormin Mormon on May 13, 2009, 10:11 pm
Last couple days, I've had the chance to work on a reach in
cooler, at a restaurant. Under a counter. The old guy who
runs the place says it needs freon every six months. The
aluminum evaporator gets wet, and probably has a lot of
pinhole leaks. I checked all the fittings, and find no leaks
at fittings or braze joints. Metering device is TXV, and the
system has a receiver.
The system is probably 30 plus years old. The evaporator is
above the compressor. About 8 inches higher, and maybe six
feet to the side.
Since the evaportator his higher, perhaps oil return isn't
an issue. Since it runs off a TXV, maybe it will adjust to
the lower heat capacity of 134a. Has anyone else tried such
a conversion? I'd much rather be feeding it 134a, compared
to some other gas or blend.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
.
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Posted by Noon-Air on May 14, 2009, 8:07 am
The thing is 30 years old.... they don't last forever. time to replace the
POS
> Last couple days, I've had the chance to work on a reach in
> cooler, at a restaurant. Under a counter. The old guy who
> runs the place says it needs freon every six months. The
> aluminum evaporator gets wet, and probably has a lot of
> pinhole leaks. I checked all the fittings, and find no leaks
> at fittings or braze joints. Metering device is TXV, and the
> system has a receiver.
> The system is probably 30 plus years old. The evaporator is
> above the compressor. About 8 inches higher, and maybe six
> feet to the side.
> Since the evaportator his higher, perhaps oil return isn't
> an issue. Since it runs off a TXV, maybe it will adjust to
> the lower heat capacity of 134a. Has anyone else tried such
> a conversion? I'd much rather be feeding it 134a, compared
> to some other gas or blend.
> --
> Christopher A. Young
> Learn more about Jesus
> www.lds.org
> .
>
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Posted by Stormin Mormon on May 14, 2009, 8:46 am
I agree with that concept. Problem is, that NYS economy is
really bad. And there isn't enough cash flow to justify a
new cooler.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
.
The thing is 30 years old.... they don't last forever. time
to replace the
POS
in message
> Last couple days, I've had the chance to work on a reach
> in
> cooler, at a restaurant. Under a counter. The old guy who
> runs the place says it needs freon every six months. The
> aluminum evaporator gets wet, and probably has a lot of
> pinhole leaks. I checked all the fittings, and find no
> leaks
> at fittings or braze joints. Metering device is TXV, and
> the
> system has a receiver.
> The system is probably 30 plus years old. The evaporator
> is
> above the compressor. About 8 inches higher, and maybe six
> feet to the side.
> Since the evaportator his higher, perhaps oil return isn't
> an issue. Since it runs off a TXV, maybe it will adjust to
> the lower heat capacity of 134a. Has anyone else tried
> such
> a conversion? I'd much rather be feeding it 134a, compared
> to some other gas or blend.
> --
> Christopher A. Young
> Learn more about Jesus
> www.lds.org
> .
|
|
Posted by olddog on May 14, 2009, 11:16 am
>I agree with that concept. Problem is, that NYS economy is
> really bad. And there isn't enough cash flow to justify a
> new cooler.
But there is enough $$ to keep fixing a 30 y/o cooler? Sounds like poor
logic.
od
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Posted by Stormin Mormon on May 14, 2009, 12:01 pm
Sounds like short term thinking. Few bucks now, instead of a
lot of bucks now. Over the years, the new cooler is probably
cheaper.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
.
But there is enough $$ to keep fixing a 30 y/o cooler?
Sounds like poor
logic.
od
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> cooler, at a restaurant. Under a counter. The old guy who
> runs the place says it needs freon every six months. The
> aluminum evaporator gets wet, and probably has a lot of
> pinhole leaks. I checked all the fittings, and find no leaks
> at fittings or braze joints. Metering device is TXV, and the
> system has a receiver.
> The system is probably 30 plus years old. The evaporator is
> above the compressor. About 8 inches higher, and maybe six
> feet to the side.
> Since the evaportator his higher, perhaps oil return isn't
> an issue. Since it runs off a TXV, maybe it will adjust to
> the lower heat capacity of 134a. Has anyone else tried such
> a conversion? I'd much rather be feeding it 134a, compared
> to some other gas or blend.
> --
> Christopher A. Young
> Learn more about Jesus
> www.lds.org
> .
>