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outside condenser: which pipes get insulated

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outside condenser: which pipes get insulated Ojas 10-14-2007
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Posted by on October 14, 2007, 2:05 pm
wrote:

>
>>For a central residential AC system, for the two copper pipes going to
>>the outside condenser unit (outflow/inflow), which copper pipe(s)
>>should the insulation be placed around?
>>
>>And what purpose does the insulation play in the AC system's operation?
>
>Usually the smaller line gets insulated with R-38 inside. This keeps
>the heat in the pipe so it can be carried outside and not cause any
>undue strain on your cooling system inside. Make sure you do NOT
>insulate the small line outside.....inside only.

        I'll be needing a bigger pipe, then, to fit all the insulation
in there ......


>On the outside you need to insulate the big line.
>Make sure you give the outside unit a good acid washing and a light
>sanding with a #150 grit belt sander to increase heat transfer from
>the condenser coil.
>Bubba


--
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Posted by Zyp on October 14, 2007, 9:28 pm
.p.jm@see_my_sig_for_address.com wrote:
> wrote:
>
>>
>>> For a central residential AC system, for the two copper pipes going
>>> to the outside condenser unit (outflow/inflow), which copper pipe(s)
>>> should the insulation be placed around?
>>>
>>> And what purpose does the insulation play in the AC system's
>>> operation?
>>
>> Usually the smaller line gets insulated with R-38 inside. This keeps
>> the heat in the pipe so it can be carried outside and not cause any
>> undue strain on your cooling system inside. Make sure you do NOT
>> insulate the small line outside.....inside only.
>
> I'll be needing a bigger pipe, then, to fit all the insulation
> in there ......
>
>
>> On the outside you need to insulate the big line.
>> Make sure you give the outside unit a good acid washing and a light
>> sanding with a #150 grit belt sander to increase heat transfer from
>> the condenser coil.
>> Bubba
>
>
> --
> Click here every day to feed an animal that needs you today !!!
> http://www.theanimalrescuesite.com/
>
> Paul ( pjm @ pobox . com ) - remove spaces to email me
> 'Some days, it's just not worth chewing through the restraints.'
> 'With sufficient thrust, pigs fly just fine.'
> HVAC/R program for Palm PDA's
> Free demo now available online http://pmilligan.net/palm/

It seems to me that *most* men want a "bigger" pipe then they have. I,
unfortunately had a smaller pipe until I got bifocals. Now it's a much
bigger pipe!

--
Zyp



Posted by on October 14, 2007, 9:35 pm

>.p.jm@see_my_sig_for_address.com wrote:
>> wrote:
>>
>>>
>>>> For a central residential AC system, for the two copper pipes going
>>>> to the outside condenser unit (outflow/inflow), which copper pipe(s)
>>>> should the insulation be placed around?
>>>>
>>>> And what purpose does the insulation play in the AC system's
>>>> operation?
>>>
>>> Usually the smaller line gets insulated with R-38 inside. This keeps
>>> the heat in the pipe so it can be carried outside and not cause any
>>> undue strain on your cooling system inside. Make sure you do NOT
>>> insulate the small line outside.....inside only.
>>
>> I'll be needing a bigger pipe, then, to fit all the insulation
>> in there ......
>>
>>
>>> On the outside you need to insulate the big line.
>>> Make sure you give the outside unit a good acid washing and a light
>>> sanding with a #150 grit belt sander to increase heat transfer from
>>> the condenser coil.
>>> Bubba
>>
>>
>> --
>> Click here every day to feed an animal that needs you today !!!
>> http://www.theanimalrescuesite.com/
>>
>> Paul ( pjm @ pobox . com ) - remove spaces to email me
>> 'Some days, it's just not worth chewing through the restraints.'
>> 'With sufficient thrust, pigs fly just fine.'
>> HVAC/R program for Palm PDA's
>> Free demo now available online http://pmilligan.net/palm/
>
>It seems to me that *most* men want a "bigger" pipe then they have. I,
>unfortunately had a smaller pipe until I got bifocals. Now it's a much
>bigger pipe!

        And you got two of them !


--
Click here every day to feed an animal that needs you today !!!
http://www.theanimalrescuesite.com/

Paul ( pjm @ pobox . com ) - remove spaces to email me
'Some days, it's just not worth chewing through the restraints.'
'With sufficient thrust, pigs fly just fine.'
HVAC/R program for Palm PDA's
Free demo now available online http://pmilligan.net/palm/

Posted by Zyp on October 14, 2007, 9:41 pm
.p.jm@see_my_sig_for_address.com wrote:
>
>> .p.jm@see_my_sig_for_address.com wrote:
>>> On Sun, 14 Oct 2007 13:36:15 -0400, Bubba
>>>
>>>> wrote:
>>>>
>>>>> For a central residential AC system, for the two copper pipes
>>>>> going to the outside condenser unit (outflow/inflow), which
>>>>> copper pipe(s) should the insulation be placed around?
>>>>>
>>>>> And what purpose does the insulation play in the AC system's
>>>>> operation?
>>>>
>>>> Usually the smaller line gets insulated with R-38 inside. This
>>>> keeps the heat in the pipe so it can be carried outside and not
>>>> cause any undue strain on your cooling system inside. Make sure
>>>> you do NOT insulate the small line outside.....inside only.
>>>
>>> I'll be needing a bigger pipe, then, to fit all the insulation
>>> in there ......
>>>
>>>
>>>> On the outside you need to insulate the big line.
>>>> Make sure you give the outside unit a good acid washing and a light
>>>> sanding with a #150 grit belt sander to increase heat transfer from
>>>> the condenser coil.
>>>> Bubba
>>>
>>>
>>> --
>>> Click here every day to feed an animal that needs you today !!!
>>> http://www.theanimalrescuesite.com/
>>>
>>> Paul ( pjm @ pobox . com ) - remove spaces to email me
>>> 'Some days, it's just not worth chewing through the restraints.'
>>> 'With sufficient thrust, pigs fly just fine.'
>>> HVAC/R program for Palm PDA's
>>> Free demo now available online http://pmilligan.net/palm/
>>
>> It seems to me that *most* men want a "bigger" pipe then they have.
>> I, unfortunately had a smaller pipe until I got bifocals. Now it's
>> a much bigger pipe!
>
> And you got two of them !
>
>
> --
> Click here every day to feed an animal that needs you today !!!
> http://www.theanimalrescuesite.com/
>
> Paul ( pjm @ pobox . com ) - remove spaces to email me
> 'Some days, it's just not worth chewing through the restraints.'
> 'With sufficient thrust, pigs fly just fine.'
> HVAC/R program for Palm PDA's
> Free demo now available online http://pmilligan.net/palm/

Oh yea - double the pleasure, double the fun ROFL

--
Zyp



Posted by Ojas on October 14, 2007, 4:55 pm
> >For a central residential AC system, for the two copper pipes going to
> >the outside condenser unit (outflow/inflow), which copper pipe(s)
> >should the insulation be placed around?
>
> >And what purpose does the insulation play in the AC system's operation?
>

The big pipe is marked outflow: from the house to the unit.

The little pipe is marked inflow: from the unit to the house.

And so the heated gas is sent to the outside unit using the big pipe
(3/4" diameter copper). The outside unit removes the heat. And then
what is sent into the house should be a liquid, which is why the pipe
is smaller.

Is that correct?


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