I need to replace the condensing unit for a homeowner and I am not sure what size the old one is. Here is the problem, the units data tag is sun bleached and unreadable. The compressor also has no legible numbers. The homeowner says another A/C man told her it is a 1 1/2 ton unit.
The old unit is for an earth contact home. It has a 5/8 suction line and 3/8 liquid line. The furnace is a 55,000 BTU input/43,000 BTU output.
I tend to think 1 1/2 ton is correct but I just wanted some feedback.
why guess, do a load calc
Perhaps, it's More FUN.
Originally posted by filterchanger
It's Not Rocket Science, But It is SCIENCE
with "Some Art". ___ ___ K EEP I T S IMPLE & S INCERE
Define the Building Envelope and Perform a Detailed Load Calc: It's ALL About Windows and Make-up Air Requirements. Know Your Equipment Capabilities
What's a earth contact home? Like a berm or earthhome? TB
I think they just start framing on the ground...no slab foundation,no crawlspace.
Another way to size condenser is look at evap. coil and determine its size, label sometimes on outside but usually on inside. Copper tubing size indicates 1-1/2 to 2 ton, if length is less that 35-40 ft. If no label on evap coil and your still not sure do a heat loadcalc.