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How to change oil in a rotary compressor? Lars S 07-26-2009
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Posted by Lars S on July 28, 2009, 9:03 am
On 28 Juli, 14:29, "Stormin Mormon"
> Hmm. So, you'd need a low temp referigerant, to absorb heat
> at low temps. R-22 could work.
> --
> Christopher A. Young
> Learn more about Jesus
> =A0www.lds.org
> .
> No, this is a heat pump project, the evaporator is approx
> 50m copper
> tube in the soil, the condenser is indoors blowing hot air.
> These
> systems are quite common up in our arctic regions.
> For me it is a low cost project were I can find most of the
> parts for
> free since I work in conjuction =A0with a refrigeration
> company.
> /Lars S

Yes R22 should work and also it should work with the mineral based oil
in the compressor...but R22 is forbidden and not available in my
country since about 10 years :=3D(
The gas to use in these applications nowdays is (normally) R407C, wery
similar to R22 in pressure etc but ester oil is needed.


/Lars S

Posted by Stormin Mormon on July 28, 2009, 1:49 pm
Got to love the environmental people. How they protect us
from problems that aren't really a problem.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
.


On 28 Juli, 14:29, "Stormin Mormon"
> Hmm. So, you'd need a low temp referigerant, to absorb
> heat
> at low temps. R-22 could work.
> --
> Christopher A. Young
> Learn more about Jesus
> www.lds.org
> .
> No, this is a heat pump project, the evaporator is approx
> 50m copper
> tube in the soil, the condenser is indoors blowing hot
> air.
> These
> systems are quite common up in our arctic regions.
> For me it is a low cost project were I can find most of
> the
> parts for
> free since I work in conjuction with a refrigeration
> company.
> /Lars S

Yes R22 should work and also it should work with the mineral
based oil
in the compressor...but R22 is forbidden and not available
in my
country since about 10 years :=(
The gas to use in these applications nowdays is (normally)
R407C, wery
similar to R22 in pressure etc but ester oil is needed.


/Lars S



Posted by The King on July 28, 2009, 4:17 pm
On Tue, 28 Jul 2009 06:03:56 -0700 (PDT), Lars S

>On 28 Juli, 14:29, "Stormin Mormon"
>> Hmm. So, you'd need a low temp referigerant, to absorb heat
>> at low temps. R-22 could work.
>> --
>> Christopher A. Young
>> Learn more about Jesus
>>  www.lds.org
>> .
>> No, this is a heat pump project, the evaporator is approx
>> 50m copper
>> tube in the soil, the condenser is indoors blowing hot air.
>> These
>> systems are quite common up in our arctic regions.
>> For me it is a low cost project were I can find most of the
>> parts for
>> free since I work in conjuction  with a refrigeration
>> company.
>> /Lars S
>Yes R22 should work and also it should work with the mineral based oil
>in the compressor...but R22 is forbidden and not available in my
>country since about 10 years :=(
>The gas to use in these applications nowdays is (normally) R407C, wery
>similar to R22 in pressure etc but ester oil is needed.
>/Lars S

You could use NU-22 as a R22 replacement and you can use mineral oil
with it. BTW Stormy is a idiot posing as a hvac tech as his remark
about using a low temp ref shows. R-22 is not typically used in a low
temp applications. It can be used as such but it has special needs
when its used in low temp apps. Your application would be considered
high temp. Its all about evap temps not boiling points like the dumb
ass mormon thinks.

Posted by The Daring Dufas on July 28, 2009, 4:53 pm
The King wrote:
> On Tue, 28 Jul 2009 06:03:56 -0700 (PDT), Lars S
>
>> On 28 Juli, 14:29, "Stormin Mormon"
>>> Hmm. So, you'd need a low temp referigerant, to absorb heat
>>> at low temps. R-22 could work.
>>> --
>>> Christopher A. Young
>>> Learn more about Jesus
>>> www.lds.org
>>> .
>>> No, this is a heat pump project, the evaporator is approx
>>> 50m copper
>>> tube in the soil, the condenser is indoors blowing hot air.
>>> These
>>> systems are quite common up in our arctic regions.
>>> For me it is a low cost project were I can find most of the
>>> parts for
>>> free since I work in conjuction with a refrigeration
>>> company.
>>> /Lars S
>> Yes R22 should work and also it should work with the mineral based oil
>> in the compressor...but R22 is forbidden and not available in my
>> country since about 10 years :=(
>> The gas to use in these applications nowdays is (normally) R407C, wery
>> similar to R22 in pressure etc but ester oil is needed.
>> /Lars S
>
> You could use NU-22 as a R22 replacement and you can use mineral oil
> with it. BTW Stormy is a idiot posing as a hvac tech as his remark
> about using a low temp ref shows. R-22 is not typically used in a low
> temp applications. It can be used as such but it has special needs
> when its used in low temp apps. Your application would be considered
> high temp. Its all about evap temps not boiling points like the dumb
> ass mormon thinks.

Whenever I've used R22 in low temp applications, hell,
even in refrigeration medium temp applications I always
have to have a defrost system. A lot of the Domino's
Pizza stores switched over to R22 in the walk-in coolers
some years back and they all have to have defrost systems.
I have to rebuild one here soon.

TDD

Posted by Stormin Mormon on July 28, 2009, 8:08 pm
I've seen R-22 in medium temp coolers, several times. Worked
on a few, too.

--
Christopher A. Young
Learn more about Jesus
www.lds.org
.



Whenever I've used R22 in low temp applications, hell,
even in refrigeration medium temp applications I always
have to have a defrost system. A lot of the Domino's
Pizza stores switched over to R22 in the walk-in coolers
some years back and they all have to have defrost systems.
I have to rebuild one here soon.

TDD



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