> On Mon, 23 Jul 2007 06:26:58 -0500, The Freon Cowboy wrote:
>
>> digital stat , built in time delay , maybe delay on break ?????
>
>
> So why is the fan energized, but not the compressor?
PFM
Posted by B-Hate-Me on July 23, 2007, 12:13 pm
>2 1/2 ton res condensor unit compressor lags fan start by two minutes or so
>(usually - sometimes starts simultaneously as it should).
>
> What to check? Pressures are normal...
Clarify: Are you saying that the condenser fan comes on before the
compressor?
Posted by Tony on July 25, 2007, 6:45 pm
>2 1/2 ton res condensor unit compressor lags fan start by two minutes or so
>(usually - sometimes starts simultaneously as it should).
>
> What to check? Pressures are normal...
Check if compressor is attempting to start as fan
start but then it doesn't
listen for hum on compressor or click if it has ext.overload like
switch this will tell you that compressor is trying to start but it doesn't
if either one of this accrue add hard start kit
that may eliminate your problem
also if you compressor delaying start when is hot only
then definitely add HS kit
Posted by Jake on July 25, 2007, 7:00 pm
pk wrote:
> 2 1/2 ton res condensor unit compressor lags fan start by two minutes or
> so (usually - sometimes starts simultaneously as it should).
>
> What to check? Pressures are normal...
I agree with another poster that a model number.. at the very least...
would be nice!
Q: I've never seen a resi condenser that didn't start the fan/compressor
with a single contactor across the line. I suppose there are VS
compressors now on high-end units that would be different (of course)...
but I've never seen one.
We do control the condenser fan separately in some commercial packages
we put together.. with good results, although it's expensive and
requires a lot of controls and VS inside and out. Of course, special
attention is needed in the reefer circuit for this to be successful.
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