Hi PrecisionMachinisT, hope you are having a nice day

On 30-Jan-05 At About 09:13:24, PrecisionMachinisT wrote to PrecisionMachinisT
Subject: Defrosting heat pumps

P From: "PrecisionMachinisT"


P Generally around here it's simply caused from a change in the weather
P and having the timer set for too long of a time span--your other
P choice being frequent defrosts taking place when there isnt even
P any frost formed on the coils...basically a nuisance situation where
P your damned if you do and your damned if you dont, too...

This sounds like a case for demand defrost. demand defrost which trane uses
self adjusts due to the fact that it senses the temp difference between the
air in and out of the coil and goes into defrost when the delta T is about
25 degrees. of course you don't want to go changing them all now but it is
something to consider when you need to change one down the road.

-= HvacTech2 =-


... "The ice cream truck in my neighborhood plays `Helter, Skelter.'"- s.w.

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