Your Assistance Please In Choosing Replacing AC Unit

[beenthere]

If you mean generally for comfort then around 70

Okay, the load calc has to be done with that as the indoor design temp.

A 3 ton unit, moving 1200 CFM, will lose almost 5,000 BTUs of sensible capacity at 70°F indoor temp, compared to maintaining 75°F indoor temp.

[WCZ1]

So just to make sure I follow then I would need to move to the 4 ton to get closer to a unit that sensibly can reach 70 ? Thanks

Okay, the load calc has to be done with that as the indoor design temp.

A 3 ton unit, moving 1200 CFM, will lose almost 5,000 BTUs of sensible capacity at 70°F indoor temp, compared to maintaining 75°F indoor temp.

[beenthere]

So just to make sure I follow then I would need to move to the 4 ton to get closer to a unit that sensibly can reach 70 ? Thanks

Not really. 3.5 ton would meet the sensible load 70 indoor and your areas design outdoor.

[dan sw fl]

If you mean generally for comfort then around 70

Around = +5'F / -0'F ?

ASHRAE 1% DESIGN CONDTIONS
__ 88.3'F /58.4'F
What is the resultant S.H.R. for the specific equipment selected?
_____ __ __ __ __ 0.76 or 0.90 ?



1. Winter: 70'F
2. Summer: ______ 'F

3. Elevation: ______ Feet

4. Check ALL details of BUILDING THERMAL ENVELOPE
__ Re-Read and address Post # 18

5, Manual J Calc

6. Perform Manual S considering the Indoor Temperature & Elevation
_ [ Concurrent Deratings ]

7. Perform Manual D
--- All duct lengths and fittings need to be included.