Original message
| ynotc100
 |  "tonnage"
, posted Tue 16 Aug 11:19  
have system 3.5 for compressor 5 for air handler. have been told so many things from so few companies, don't know what to do. have been told i need 5 ton comp and 5 ton handler for 2600 sq home, ft. myers fl. now i'm told i just need 3.5 and 3.5 in lennox system. there should be an easier way i'm sure but ya just don't trust everyone today. Thanks for any help Tony
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Replies:
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| rustymike
| "Re(1):tonnage" , posted Tue 16 Aug 14:02
You could use the 5 tr air handler but should make sure that you have the 3.5 tr piston/orifice or TXV in the air handler coil so that you'll match the performance of the outdoor unit.
You should also reduce the fan speed down to medium or med-low to give you the correct airflow through the cooling coil.
your cooling down time will be a bit longer, but you'll also benefit from more moisture removal with the larger sized coil.
Your superheat will be off a bit, but that can be compensated for without much concern.
No matter how idiot proof you make something better idiots will always try and screw around with it!
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