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Old 03-15-2011, 04:05 PM   #15
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A Honda 2000 will definately run the Polar Cub for extended periods, but you may need to change the start capacitor in the A/C unit. The new capacitor is called a SPP6E and is quite easy to install. It greatly decreases the start current required for the Cub compressor. The new capacitor will also allow you to run your A/C from a 15 amp house circuit. I don't know about the Penguin. I opened up the electrical box on my Penguin and almost immediately closed it right back up! It was quite complex compared to the Cub and I decided not to upgrade the start capacitor not knowing if the new capacitor would allow the A/C to run with the Honda 2000 or not. Contact me if you need a SSP6E! I have one. Does anyone know if the new start capacitor will install into the Penguin?
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Old 03-15-2011, 05:38 PM   #16
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A Honda 2000 will definately run the Polar Cub for extended periods, but you may need to change the start capacitor in the A/C unit. The new capacitor is called a SPP6E and is quite easy to install. It greatly decreases the start current required for the Cub compressor. The new capacitor will also allow you to run your A/C from a 15 amp house circuit. I don't know about the Penguin. I opened up the electrical box on my Penguin and almost immediately closed it right back up! It was quite complex compared to the Cub and I decided not to upgrade the start capacitor not knowing if the new capacitor would allow the A/C to run with the Honda 2000 or not. Contact me if you need a SSP6E! I have one. Does anyone know if the new start capacitor will install into the Penguin?
Not to be a contrarian, but don't you suppose that if your new capacitor was a solution to hard starting that the designers and manufacturers of these units would have provided them when they built these units? Also, I can tell you from experience, that you WILL void your factory warranty if you change the start capacitor or any other component in a new roof A/C unit......both RVP and Dometic (I am a factory authorized service center for both OEMs).

I also have just finished installing a new RVP 15K roof air in a Winnebago as an auxiliary unit. I was pleasantly surprised by the lack of overpowering noise from the evaporator fan.........and it sure got COLD in there in a hurry. Nice very low profile design also with integrated drain apparatus and condensate pump, eliminating the need for drain pans of other contraptions. RVP units are also made right here in the good old USA!!!

I'm sure that the cub will be much quieter, but I would question the cooling capacity of an 8K unit in an aluminum trailer on a 90* day in the hot sun. One reason to go for a bigger unit.
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Old 03-15-2011, 06:14 PM   #17
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I totally agree with you that the change will probably void the warranty but.... I have installed the SPP6E in my unit and three others and in all four cases the A/C would run perfectly with the Honda 2000, whereas they would not run without the larger capacitor. (The compressor would bog down the generator) I don't know why the manufacturer doesn't install the larger capacitor except that it might cost them a few more monies. As a repairman, you probably see a lot of things done by the manufacturer that really surprise you. I guess the proof is in the pudding!
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Old 08-10-2011, 07:31 PM   #18
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Perhaps the Honda should have the capacitor, not the AC. It may be important to view the generator output waveform for correct RMS voltage, and peak voltage. The capacitor may help improve the generator regulation, it may also result in undesired peak supply voltage. A scope is helpful in making the measurements.
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Old 08-10-2011, 08:53 PM   #19
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Perhaps the Honda should have the capacitor, not the AC. It may be important to view the generator output waveform for correct RMS voltage, and peak voltage. The capacitor may help improve the generator regulation, it may also result in undesired peak supply voltage. A scope is helpful in making the measurements.
Welcome to the forum.
Why would Honda, which has one of, if not the cleanest power outputs of any generator in the world, start putting capacitors on their generators to compensate for an air conditioner compressor? What would that do to people's electronics when they plug in their televisions and computers?
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Old 08-10-2011, 10:08 PM   #20
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Just installed a Polar Club in a 18 footer. The Honda 2000 ran the air great for hours even in Eco mode. We are very happy with the size and low noise level even on high. Just wished it had a three speed fan.
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Old 08-13-2011, 07:10 AM   #21
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Terry,

I have to agree with you. Not sure what was going on in my mind. You bring up an excellent point. The important part is if a capacitor is added, significant testing needs to be done to insure correct performance. I doubt most have the equipment time or knowledge to do it correctly. It can be a can of worms.

A small generator may trouble starting heavy load especially if that is the only load. A fan "on", may actually help add inertia to the system and help with the starting. While some may have problems and others not, really depends on many factors, including various loads and operating conditions.

Most modern electronics use SMP (switch mode power) supplies. Many are universal voltage input, and work by rectifying the AC to DC to charge a large capacitor, then use a switching regulator circuit to convert to lower voltage. The end result is they are tolerant to power noise and ride out dips in voltage. Older electronics with linear supplies may have problems with less than ideal power quality.

Dave
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