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Old 02-06-2016, 02:36 PM   #1
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Hard start capacitor and time delay relay to AC

Added hard start capacitor and time delay relay for better AC starting performance while on generator (or shore power). This is a popular upgrade for those of us with small generators.

https://youtu.be/NVkCjPh7Nd8
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Old 02-06-2016, 11:33 PM   #2
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Thank you for the video....watched the whole thing...very informative!
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Old 02-07-2016, 12:22 AM   #3
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Nicely done I have a domestic unit and I'm going to try the fan delay when it comes in. I already have the hard start cap installed. I found the timer on Jet.com for less than $6.00.
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Old 02-07-2016, 12:32 AM   #4
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Thanks for the comments.
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Old 02-07-2016, 05:38 AM   #5
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Thank you for the video....watched the whole thing...very informative!
That's a good video. You can see the difference those two little things can do and help. Even if your not on a ginny which is why most people do it, It is still a good idea to do even if your plugged in all the time. The Total cost is like 20.00 bucks or so and easy to do, and your compressor and power source will thank you. I would think it would almost be a must with a 30 amp unit.....Good Job Too Tall.....
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Old 02-07-2016, 02:51 PM   #6
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That's a good video. You can see the difference those two little things can do and help. Even if your not on a ginny which is why most people do it, It is still a good idea to do even if your plugged in all the time. The Total cost is like 20.00 bucks or so and easy to do, and your compressor and power source will thank you. I would think it would almost be a must with a 30 amp unit.....Good Job Too Tall.....
Glen, I'm curious as to why you think this is a good idea if you are always on shore power?
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Old 02-07-2016, 02:53 PM   #7
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I would think the less high draw off the 30amp system will save the breaker from tripping under the right circumstances..

I have the hard start already but I am now thinking about this delay. I am still also debating the relay Turbs posted some time ago to make my AC run off the heater thermostat.... GOD I HATE THIS SITE!!!!!!
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Old 02-07-2016, 03:23 PM   #8
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Now one thing that I kind of ignored was the delay because too tall has the coleman thermostat and I have the dometic digital thermostat which I automatically assumed meant it wouldn't work for me.

Does anyone see any reason why a delay would not work for my dometic... now having said that, when I fire up the a/c the fan runs first for probably 10 seconds and then the compressor kicks in....maybe dometic already has a delay built in.

Any help is appreciated,
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Old 02-07-2016, 04:49 PM   #9
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Turbs has a Dometic with the time delay. It will work with either as it's 12 volts that energizes the fan relay. IMO, The relay doesn't know whether it's dometic, coleman or whatever. If your thermostat does start the fan first, you might want to get the 3 to 60 sec as opposed to the 0 to 10 second delay as you may need a little longer delay to overcome the built in delay. This is what I"m thinking, others can confirm.
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Old 02-08-2016, 05:15 AM   #10
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Glen, I'm curious as to why you think this is a good idea if you are always on shore power?
Doc 73, is correct that is why I still think it's a good idea. It doesn't take much to get to 30 amps if like your water heater decides to kick on at the same time. Also a hard start is used to kick your compressor into run faster from start-up amps. It's just a capacitor that stores power to assist in the start mode, then drops out. We use to install them on any unit that would cause what is called nuisance tripping. When I was an HVAC repair man. Many, Many years ago.....Cheap mod and insurance...
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