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Old 05-14-2019, 08:00 AM   #15
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To try to be very clear about this, both Progressive and SurgeGuard sell significantly less expensive devices that are just surge suppressors. The indiscriminate use of that term to apply to both surge suppressors and EMS's can be very confusing to people for whom all of this is new information.

If you want any evidence of this, you ought to spend some time on the Facebook RV groups where the overall knowledge level is significantly less than on these forums. There the confusion between surge suppressors and EMS's runs rampant!
Yep, that's why I said they were Brand names that sold Many different devices.

I deliberately stay away from those facebook pages. That's why I attempt to teach the newbies the difference. I just wish I had more help here.
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Old 05-14-2019, 02:35 PM   #16
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If you all want to really throw acronyms in the mix, both my previous Bounder & my Phaeton had units called EMS's already installed. In the Bounder, it was Intellitec & in the Phaeton it's the Spyder system. Both are designed to shed loads to keep within the incoming amps ratings. Most useful when on 30A or less.

So when talking about EMS's, one has to differentiate between the after market ones & the ones that can come installed as OEM by the factory.

As I stated prior, I would not plug any RV I own into a campground's power (or even into the power where I store it) without having a PI (either hard-wired or portable) to protect my investment. This Phaeton is 10x more complicated with sophisticated electronics than our 06 Bounder was. All it takes is one mis-wired/low or high voltage/open ground...etc. instance & all that fancy stuff in my coach could be fried in the blink of an eye.

Lori-
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Old 05-14-2019, 10:32 PM   #17
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If you all want to really throw acronyms in the mix, both my previous Bounder & my Phaeton had units called EMS's already installed. In the Bounder, it was Intellitec & in the Phaeton it's the Spyder system. Both are designed to shed loads to keep within the incoming amps ratings. Most useful when on 30A or less.

So when talking about EMS's, one has to differentiate between the after market ones & the ones that can come installed as OEM by the factory.

As I stated prior, I would not plug any RV I own into a campground's power (or even into the power where I store it) without having a PI (either hard-wired or portable) to protect my investment. This Phaeton is 10x more complicated with sophisticated electronics than our 06 Bounder was. All it takes is one mis-wired/low or high voltage/open ground...etc. instance & all that fancy stuff in my coach could be fried in the blink of an eye.

Lori-
I was waiting for one of those to show up. What you had were load shedding systems. Not an EMS protection system as we know it. it simply shut things off in your RV to keep it from drawing too many amps. EMS as we know it shuts the power off because of High or low voltage. The EMS in you coach could not to that. It is all very confusing and it should not be. Many people buy thing they don't need or don't understand what they bought.
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Old 05-15-2019, 12:06 AM   #18
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Dan

I have no idea what he's talking about. I have a HW50 PI unit with our Surge Guard transfer switch and it's perfectly compatible. The PI will not interfere with the transfer switch at all and is just a first line of defense.

I thought our Tiffin had a pretty good surge suppressor that came with our Bus. Not so? Jeff
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Old 05-15-2019, 06:40 AM   #19
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I thought our Tiffin had a pretty good surge suppressor that came with our Bus. Not so? Jeff
Yes, the one built into the coach's transfer switch has limited surge suppression and the newer ones have power management which totally depends on which model of transfer switch you have. However, think of an added unit as a first line of defense. If you take a surge hit what would you rather burn out, an EMS like the PI that can be bypassed or your transfer switch? The PI will tell you if a pedestal is mis-wired or under powered before power goes to the coach.
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Old 05-15-2019, 04:51 PM   #20
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I hate to say it but anyone who actually understood anything about electricity would have known that the PI EMS system wouldn't be "incompatible" with the functions of the transfer switch. Surge suppressors in series simply act independently to reduce the magnitude of a voltage spike. The PI device can shut off power if it detects low voltage, high voltage, reversed polarity, etc. Since the OP's transfer switch can't do any of those things there would be no interference between the two devices.

Unfortunately, my experience has been that most RVIA-qualified techs have only a rudimentary understanding electricity. Enough to wire simple circuits, but not a real understanding of more complex concepts, such as an understanding of transients as would be relevant to power line surges. This is not to demean techs who can't be expected to know what they're not required to know. But neither should they give advice they're not qualified to give.
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Old 05-15-2019, 08:34 PM   #21
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Quote:
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I was waiting for one of those to show up. What you had were load shedding systems. Not an EMS protection system as we know it. ...
I know. Take the labeling up with Intellitec. That's how they label it & that's how I referred to it in the Bounder.

Lori-
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Old 05-16-2019, 09:53 AM   #22
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Dan, so what model did you use. I sell and maintain computer systems so I know all about surge protection.
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Old 05-16-2019, 05:55 PM   #23
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Dan, so what model did you use. I sell and maintain computer systems so I know all about surge protection.
I use the Progressive Industries HW50C hard wired into the coach with remote display. This is a unit designed specifically for RVs.
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Old 05-16-2019, 08:00 PM   #24
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I use the Progressive Industries HW50C hard wired into the coach with remote display. This is a unit designed specifically for RVs.
X2; it's not the easiest thing to install with the large gauge wires, but I got it done!
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Old 05-16-2019, 08:38 PM   #25
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I can tell you, it sure went a lot easier this time around. 1. Because Dave's done it 3x before (1x before with a 50a unit). 2. The bay it went in was large enough to maneuver in.

In the Bounder, I had to take out 4 wardrobe drawers, Dave had to lay on his side reaching in through the drawer frames/rails in about 10" of space between the bed & the openings, then reach down into where the transfer case was. Doing this in the Phaeton was a piece of cake.

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Old 05-16-2019, 08:48 PM   #26
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My Winnabego cam with a Surge Gard Transfer switch, but it was a limited model that only had Surge protectin. When my transfer switch went bad I replaced it with a Surge Giard combo Transfer switch and full EMS.
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