2.5 ton Rheem A/C with 3 ton evaporator coil

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  #1  
Old 06-26-13, 06:54 AM
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2.5 ton Rheem A/C with 3 ton evaporator coil

Last week I had a new A/C installed by a contractor.
Specifications: 2.5 Ton Rheem brand with a 3 ton coil.
My house is a 2500sqft.

Can someone let me know, if the contractor installed the right 3 ton coil? He didnt confirm to me what he is installing and I forgot to ask him. Now I wanna check if he installed the 3 ton coil.

please advise.

Thx


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Last edited by PJmax; 07-02-14 at 04:17 PM.
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Old 07-02-14, 01:53 PM
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Im srry but a 2.5 ton unit is not gonna work for 2500sf. You need a 4 ton unit for that much area it's usually 1 ton for every 600 sf
 
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Old 07-02-14, 04:19 PM
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Welcome to the forums.

For us to confirm anything we'd need the part numbers of the equipment.
 
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Old 07-03-14, 05:30 AM
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Sizing a unit by square feet is dumb! First red flag! Must do a heat load! Did you see the poster was from Canada? Less heat, tighter homes?
 
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Old 07-03-14, 07:46 AM
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In a Canadian climate usually dehumidification is a major factor for comfort at the milder temps.

Therefore the evaporator should have been the same tonnage as the condenser to provide a colder coil at 350-CFM per/ton of cooling, thus better dehumidification.

Hopefully, it has a TXV refrigerant metering device on the indoor coil, because at moderate temps a fixed orifice will run too high a superheat & not as cold a coil at moderate temps as a TXV fed coil.

The 2.5-Ton was probably close to right sizing as it needs longer runtimes to dehumidify in that moderate climate.
 
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