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Posted by 257roberts on December 4, 2006, 8:12 pm
Got the relay on and the unit is starting nicely. Thanks to all the
posters who offered thier help. Very much appreciated...Hope I can
help someone out soon.
Stormin Mormon wrote:
> Yes, it's fun to joke about 240 volts only being for eastern states.
> It's sad that the equipment is burning up from low voltage. And I'm
> pleased you have the skills to check. Something I ought to do from now
> on, check the line voltage as part of any clean and check.
>
> --
>
> Christopher A. Young
> You can't shout down a troll.
> You have to starve them.
> .
>
> Christopher: consider you self lucky that you are not
> living in this part of country, I have being working
> on systems that should have 208 after customer
> burn up some wiring they call for service only
> for me to find that are running on 195-7 and are wondering
> why is it that unit is not working properly, this is not
> one place it is practically across eastern part of country
> 90% are running below 205 which isn't enough for 220 machines
> this year I replace few compressors because of
> the low voltage when the equipment blow fuses
> you would think that some one would check for that
> oh no that is to much to ask so good for me
> they are paying for it
> From Dido
>
>
> >I have a 3HP Copeland Med Temp unit that the compressor won't start
> all
> > of the time. When it does start, the amp draw is good, capacitors
> all
> > check good, so I'm thinking the start relay is going bad. If I
> can't
> > find the exact relay, (it's pretty old), would one of the
> "Universal"
> > types work? I see one in my Grainger catalog. How do you set them?
> I
> > see something in the description about drop- in and drop-out
> voltage.
> > The condensing unit is 208V. The numbers on my old relay are:
> > 3ARR3MARS64 M&A 19003. Any help much appreciated.
> >
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