"Ranger001" wrote in message
ups.com...
Hi I bought a Frigidaire Window Air Conditioner (FAL124K1A1) in 2001 @
$400.00. At first it worked fine but then, last week it demised. It was
under warranty and was repaired. However since it came back it seems
not to cool effectivly & quickly like it use to. the tech says its ok
but I think different. My question what formula can I use to see if the
unit is working properly? What tools can/do I need/use? I wrote to
Frigidaire and they replied: ".....This is a 12,000 btu unit; it should
have a 20 - 25 temperature rise across the coil. Difference between the
incoming and out blowing air." What does this mean? What does "across
the coil" mean? Please advise, Thanks!


you answered the question
"it should have a 20 - 25 temperature rise across the coil.
Difference between the incoming and out blowing air."