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8 replies to this topic

#1 Pilgrim88

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Posted 18 April 2012 - 02:10 PM

In the overall scheme of things, with all else being equal, how significant is the HP rating… e.g. replacing 1/5hp compressor with a 1/4hp?

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#2 appl.tech.29501

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Posted 18 April 2012 - 04:57 PM

Depending on the brand of compressor your dealing with and as long
as your talking about a compressor with low back pressure thats used
in household refrigerators and ice machines. The BTU variance is usually
80-100 BTU's more on a 1/4 HP than a 1/5 HP compressor. From my experience
that transition will work just fine but you dont really want to stray any farther.
I would monitor the pressures for at least 24 HRS before buttoning it up
watching sweat back on the suction line as well.
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#3 jumptrout

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Posted 18 April 2012 - 04:57 PM

The BTU is more important than HP on a small unit.

#4 Pilgrim88

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Posted 18 April 2012 - 08:44 PM

Thanks

I think I see the light?

#5 Pilgrim88

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Posted 19 April 2012 - 01:26 AM

How much sweat back on the suction line would indicate a problem. And what would be the remedy?

#6 appl.tech.29501

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Posted 19 April 2012 - 06:49 AM

What kind of frige are you working on? Top mount,
Side by side, bottom mount? Is the condenser on the back
Of the unit or underneath? What's the ambient temp.
Where the unit will be used?
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#7 Pilgrim88

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Posted 19 April 2012 - 07:36 AM

Maytag French Door MFD256HES
Bottom mount
Condenser underneath
An average ambient temperature range of 65f to 80f
Used in residential kitchen


Thanks, Man

#8 appl.tech.29501

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Posted 19 April 2012 - 12:54 PM

I would charge the unit to the charge amount on the
model plate. From there monitor pressures and temps.
you may have to insulate the suction line to eliminate sweating.

Are you certified to do sealed system work?
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#9 Pilgrim88

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Posted 19 April 2012 - 01:55 PM

Thanks

No I am not certified

I don't think there is a problem in Pennsylvania using r134a




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