Mr_Bill wrote:

Perhaps somebody can explain for me how to reconcile air conditioner
SEER specs with current consumption specs.

I am looking at installing a Trane XL19i split system condenser
(compressor).
The spec sheet says to use branch circuit protection of 30A minimum
and 35A maximum. The spec also says to use wire of at least 22A
ampacity. This all seems reasonable so far.

Then the spec sheet says that the "R.L.A." for the compressor is
15.1A,
and the RLA for the fan is 2.8A. So the total RLA is 17.9A.

Now to my confusion. This is a 36kBTU unit rated at 19+SEER.
36000/19 = 1895watts or 8.6amps.

So, when the compressor and fan are running (but not including any
starting transients) how much current is being drawn?

This is more or less an academic question. I intend to use a 30A
breaker and 8 ga. THWN which is 50A ampacity, but I'd like to know in advance
when the unit is sitting there running, how many amps will I be drawing?


Get an amprobe, it varies due to load conditions and other factors.

Grateful for any explanation.


There are far too many factors that affect SEER Ratings and energy
consumption to even begin to address here.
If you want to do some reading on some of the factors affecting SEER &
efficiency of operation, here is a link to begin the journey.
http://www.udarrell.com/proper_cfm_b...syste ms.html
- udarrell

--
WISDOM PRINCIPLE DIRECTED EMPOWERMENT COMMUNICATIONS -
THE REAL POLITICAL ISSUES and WISDOM BASED PEOPLE EMPOWERMENT
http://www.udarrell.com/
http://www.udarrell.com/my_pages2.htm