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Has anyone used a Universal Potential Relay? Do they work?

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Has anyone used a Universal Potential Relay? Do they work? 257roberts 11-25-2006
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Posted by 257roberts on November 25, 2006, 6:41 pm
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.


Posted by Noon-Air on November 25, 2006, 7:03 pm

>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.
>
I am not familier with the numbers.... Have you tried a TO-5 Kickstart??



Posted by daytona° on November 25, 2006, 7:52 pm
Make sure the relay is suitable for the HP
If you can larger on the relay HP ...this is good
Why not install a Copeland hard start kit?



>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.
>



Posted by 257roberts on November 25, 2006, 8:17 pm
Not sure what a "TO" kit is...
would the Copeland Hard Start kit include a Start relay?


daytona=B0 wrote:
> Make sure the relay is suitable for the HP
> If you can larger on the relay HP ...this is good
> Why not install a Copeland hard start kit?
>
>
>
> >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.
> >


Posted by Noon-Air on November 25, 2006, 8:27 pm
http://www.kickstartoem.com/#

Not sure what a "TO" kit is...
would the Copeland Hard Start kit include a Start relay?


daytona° wrote:
> Make sure the relay is suitable for the HP
> If you can larger on the relay HP ...this is good
> Why not install a Copeland hard start kit?
>
>
>
> >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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