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4 ton evaps with 3 ton condenser
Everywhere I go I see 4 ton evaps with 3 ton condensers. All installed around 2008-2010. Was that a trend back then?
Is it still very wrong?
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Which brands? Where do you live? What is Design Conditions there?
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Still fairly common today. Done mostly to get higher efficiency.
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Originally Posted by
TechmanTerry
Which brands? Where do you live? What is Design Conditions there?
Mostly ICPs, PA and Southern NJ, that's all on houses that 3 ton units would be sufficient.
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They are probably ARI matches
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Raises the sensible heat ratio as whatever extra capacity they gain is all sensible. But can had a fraction of a SEER point.
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It's a nice idea and works well but the metering device And the indoor air flow rate Have to match the compressor capacity.
Manufacturers do that fairly often to gain a particular SEER rating with existing equipment. That is; equipment they are already making. But I've done it somewhat routinely myself.
PHM
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Originally Posted by
Aendilx
Everywhere I go I see 4 ton evaps with 3 ton condensers. All installed around 2008-2010. Was that a trend back then?
Is it still very wrong?
PHM
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When faced with the choice between changing one's mind, and proving that there is no need to do so, most tend to get busy on the proof.
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What "southern NJ" ? Willingboro? Glassboro? Vineland? Cape May? <g>
PHM
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Originally Posted by
Aendilx
Mostly ICPs, PA and Southern NJ, that's all on houses that 3 ton units would be sufficient.
PHM
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When faced with the choice between changing one's mind, and proving that there is no need to do so, most tend to get busy on the proof.
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It's not all sensible if the airflow matches (or under cuts <g>) the compressor capacity, is it?
Originally Posted by
BaldLoonie
Raises the sensible heat ratio as whatever extra capacity they gain is all sensible. But can had a fraction of a SEER point.
PHM
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When faced with the choice between changing one's mind, and proving that there is no need to do so, most tend to get busy on the proof.
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Not unusual down here in south Texas. There is no problems with larger evaporator coils if it's installed right.
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Common in N.Cal too. Many sciency reasons, but different pairings yield different SEER.
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Originally Posted by
Poodle Head Mikey
It's a nice idea and works well but the metering device And the indoor air flow rate Have to match the compressor capacity.
Manufacturers do that fairly often to gain a particular SEER rating with existing equipment. That is; equipment they are already making. But I've done it somewhat routinely myself.
PHM
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When Robotec was selling he said he would select another coil so the space would be comfortable. More latent removal. Kind of a trade off comfort for efficiency.
We are here on Earth to fart around ......Kurt Vonnegut
You can be anything you want......As long as you don't suck at it.
USAF 98 Bomb Wing 1960-66 SMW Lu49
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I remember there use to be a guy on here that claimed undersizing the evap and running normal 400 air flow/T would dehumidify better. Seems he was from Tx.
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Originally Posted by
Aendilx
Everywhere I go I see 4 ton evaps with 3 ton condensers. All installed around 2008-2010. Was that a trend back then?
Is it still very wrong?
Carrier started this Trend in my (A O),(Nor-Cal), in the 1970's.
LZ..