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Repair Carrier Low Profile w/heatpump? [message #286053] Fri, 28 August 2015 15:55 Go to next message
John  Sharpe is currently offline  John Sharpe   United States
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The dual capacitor for the condenser fan and compressor needs to be replaced. The specs on the capacitor from EUN SUNG IND shows 45/12 uF 370 VAC. The specs on my non-heatpump unit is from GE and shows 12/50 uF 330VAC. The part number in the Carrier manual identify the condenser for both units as a 10-50061-00.

Am I correct to believe that the 12 uF is for the fan and the 45 and 50 are for the compressor? I have not been able to locate direct replacements for either of these. I know just enough about this stuff to be dangerous.

So I have a few questions: Can I use either a 370V or 440V capacitor for replacement? From what I have read this substitution is OK. Now the second part. Can 2 capacitors be used? Like one for the fan of say a 12.5 uF 440V and 45 uF 440V or 50 uF 440V for the compressor? ie is it ok to go up a little in the MFD?


John Sharpe
Porter, TX
78 Eleganza II, TBI
40 Ford Panel, TPI
Re: Repair Carrier Low Profile w/heatpump? [message #286057 is a reply to message #286053] Fri, 28 August 2015 16:54 Go to previous messageGo to next message
Rick Williams is currently offline  Rick Williams   United States
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John

More than likely the smaller capacitor (12uf) is for the fan and the larger one is for the compressor. But I would try to verify that with a wiring diagram if one is available. Any voltage rating above 370v is fine. You can use separate capacitors just make sure that you observe the polarity marking on them. But with all that said, I think this will work for you.
http://www.ebay.com/itm/NEW-Motor-Round-Dual-Run-Capacitor-45-10-MFD-370-440-Volt-Supco-CR45-10x440R-/271209709716?hash=item3f255bc094


Rick


Rick Williams
Bliss, Michigan
1978 Eleganza II
Re: Repair Carrier Low Profile w/heatpump? [message #286064 is a reply to message #286057] Fri, 28 August 2015 18:25 Go to previous messageGo to next message
C Boyd is currently offline  C Boyd   United States
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I have heard of a hard start capacitor for compressors. Is it advisable to use one when a new capacitor is needed?



Rick Williams wrote on Fri, 28 August 2015 17:54
John

More than likely the smaller capacitor (12uf) is for the fan and the larger one is for the compressor. But I would try to verify that with a wiring diagram if one is available. Any voltage rating above 370v is fine. You can use separate capacitors just make sure that you observe the polarity marking on them. But with all that said, I think this will work for you.
http://www.ebay.com/itm/NEW-Motor-Round-Dual-Run-Capacitor-45-10-MFD-370-440-Volt-Supco-CR45-10x440R-/271209709716?hash=item3f255bc094


Rick



C. Boyd
76 Crestmont
East Tennessee
Re: Repair Carrier Low Profile w/heatpump? [message #286066 is a reply to message #286064] Fri, 28 August 2015 19:06 Go to previous messageGo to next message
John  Sharpe is currently offline  John Sharpe   United States
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Rick, thanks. The parts house told me I could use a 45 10 uF 370V or 440V. They just would not sell to me. While most retailers complain that people are taking their business to the internet, these guys are encouraging it. Go figure. Is there a down side to using a lower value on the fan? My capacitor is bulging, the compressor starts and runs fine. The symptoms showed up on the condenser fan.

John Sharpe
Porter, TX
78 Eleganza II, TBI
40 Ford Panel, TPI
Re: Repair Carrier Low Profile w/heatpump? [message #286076 is a reply to message #286053] Fri, 28 August 2015 19:53 Go to previous messageGo to next message
Rick Williams is currently offline  Rick Williams   United States
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Chuck

I have not researched the hard start systems such as the Supco SPP6E so I know little about them.

John

The 10uf is slightly below recommended. These caps have about a 6% tolerance so a 10uf would range from 9.4 to 10.6 uf. A 12uf could be as low as 11.28 so they are close. A slightly lower capacitance results in slightly greater motor winding current. Too much current can be detrimental but this is a small amount. It is nice to match exactly but again this will probably be ok. You can always parallel capacitors to add to 12uf. The bulging of your cap is a definite failure.

Rick



Rick Williams
Bliss, Michigan
1978 Eleganza II
Re: Repair Carrier Low Profile w/heatpump? [message #286077 is a reply to message #286053] Fri, 28 August 2015 20:10 Go to previous messageGo to next message
Jp Benson is currently offline  Jp Benson   United States
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globalindustrial.com has a pretty good selection of caps at reasonable prices. Check to see if they have yours. Grainger may also have it. It's a commodity item so I wouldn't be too concerned with brand name although some say american made are more reliable.

The old rule of thumb was not to deviate more than 10% from the specified capacitance value. That may be different nowadays. The voltage rating is a maximum not to be exceeded by the compressor/fan. So you can go higher but not lower.

If you use a start kit get the factory specified model. I've had several Supco start kits work for a while and then fail.

JP
Re: Repair Carrier Low Profile w/heatpump? [message #286078 is a reply to message #286066] Fri, 28 August 2015 20:10 Go to previous messageGo to next message
Dennis S is currently offline  Dennis S   United States
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John Sharpe wrote on Fri, 28 August 2015 19:06
Rick, thanks. The parts house told me I could use a 45 10 uF 370V or 440V. They just would not sell to me. While most retailers complain that people are taking their business to the internet, these guys are encouraging it. Go figure. Is there a down side to using a lower value on the fan? My capacitor is bulging, the compressor starts and runs fine. The symptoms showed up on the condenser fan.


John
McMaster Carr is a good source for capacitors -- the last I bought were GE.
And since you live in a large metro area you could probably have them by Tuesday latest.

Dennis

http://www.mcmaster.com/#motor-capacitors/=yp5oie


Dennis S
73 Painted Desert 230
Memphis TN Metro

[Updated on: Fri, 28 August 2015 20:11]

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Re: Repair Carrier Low Profile w/heatpump? [message #286079 is a reply to message #286053] Fri, 28 August 2015 20:13 Go to previous messageGo to next message
roy1 is currently offline  roy1   United States
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The answer to all your questions is yes. The 10 mfd capacitor would most likely be fine but I would prefer to go with the 12 or 12.5. In this type of set up the smaller capacitor is always for the fan. The other question about the hard start kit . This is an option to start the compressor easier in low voltage or short cycle conditions . It doesn't take the place of the 2 run capacitors but is a good addition in any case. A lot of a/c supply houses won't sell to me either and I was a service mechanic for more then 35 years. I'm just not in the trade anymore since I retired but I still have my refrigerant license.

Roy Keen Minden,NV 76 X Glenbrook
Re: Repair Carrier Low Profile w/heatpump? [message #286090 is a reply to message #286079] Fri, 28 August 2015 23:57 Go to previous messageGo to next message
Ken Burton is currently offline  Ken Burton   United States
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The HVAC wholesalers around here are like that also but I have been successful in just talking my way around that. The one I use most often I first bought from them was when I was 14 years old. I needed a motor start capacitor and some had to drive me over there. I bought it then and have bought many things like a complete furnace with AC, furnace mounted humidifiers, electronic air cleaners, and the list goes on and on. Most recently I bought a new fan motor about 2 weeks ago from a place I have never used before. I just talked my way through it. If you have any friends in the maintenance department for any buildings like a hospital, etc, have them get it for you.

My last receipt says sold to: Contractor, cash sale.


Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
Re: Repair Carrier Low Profile w/heatpump? [message #286094 is a reply to message #286053] Sat, 29 August 2015 09:11 Go to previous messageGo to next message
JohnL455 is currently offline  JohnL455   United States
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Try www.shortyshvac.com. Lots of Carrier parts.

John Lebetski
Woodstock, IL
77 Eleganza II
Re: Repair Carrier Low Profile w/heatpump? [message #286121 is a reply to message #286066] Sat, 29 August 2015 21:21 Go to previous message
Chr$ is currently offline  Chr$   United States
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John Sharpe wrote on Fri, 28 August 2015 17:06
Rick, thanks. The parts house told me I could use a 45 10 uF 370V or 440V. They just would not sell to me. While most retailers complain that people are taking their business to the internet, these guys are encouraging it. Go figure. Is there a down side to using a lower value on the fan? My capacitor is bulging, the compressor starts and runs fine. The symptoms showed up on the condenser fan.



Pardon my French, but at that point, I would tell them to go fuck themselves. Yes, they are driving the business to amazon, the walmart of the internet, and by "protecting" their market, they are only hastening their demise. Kudos to you for trying to buy local, but these guys can take a flying fuck. Sorry, I feel that strongly about it. It is not illegal for us to buy R410a but Johnstone supply lies and says you have to have a permit. The counter guys will sometimes tell you the truth, as it is company policy not to sell to the public. So, I pay $100 for a 25# tank on amazon instead of $50 where they will make $25. Fuck 'em. Hope they all go out of business since all they carry is shitty Chinese "haier" branded stuff anyway.

Now,

Most large cities have a place that sells to the public with their middle finger to the industry that charges extortion prices for poorly made crap and shitty "technicians" who cannot troubleshoot their way out of a paper bag. We have one in Mesa, AZ. Very friendly, very helpful, They just don't sell refrigerant. Prices are fair.

Hope you find the local guy in your area and send him the business he deserves.

/rant off.

FYI, you can use separate caps for each motor, dual caps are just a way to make the systems cheaper to manufacture for more profit, but more expensive to service. See, there's that shitty HVAC industry working against the customer again...


-Chr$: Perpetual SmartAss
Scottsdale, AZ

77 Ex-Kingsley 455 SOLD!
2010 Nomad 24 Ft TT 390W PV W/MPPT, EV4010 and custom cargo door.
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