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LunaPod View Drop Down
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Direct Link To This Post Topic: Surge/voltage protectors
    Posted: 01 Mar 2011 at 9:36pm
I have read posts on the pros and cons of surge protectors with and without undervoltage protection and since this is my first RV with an air conditioner I emailed Dometic for some answers, here is their response and my original email:
 
From: CustomerSupportCenter/LaGrange/North_America/Dometic@dometic.se
To: thory@q.com
Subject: Re: Voltage fluctuation
Date: Fri, 25 Feb 2011 11:35:50 -0500


Any time your AC voltage fluctuates outside of the operating range we allow for you are risking damage to the product.  Our air conditioning units require your ACV to be between 108-122 volts for proper operation.  When you provide low voltage to the unit what can and will happen is the ac will end up pulling higher amps because it is trying to compensate for the low amount of voltage being provided.  This can do many things to an air conditioner, over time it can cause the compressor to fail, when this is happening tho it can cause the unit to have improper operating function.  Meaning you most likely will not get the cooling from it that it is designed to produce.  Our AC units do have a compressor over load and this will kick the compressor off when the locked compressor amps is hit which should protect your unit, however over a period of time operating the ac with low voltage can damage the unit.  
There is not a built in time delay for low voltage on our units.  If you are using a 5 button digital wall thermostat there is a 2.5 min delay on the compressor starting but that is only for the compressor and only when using that control system.  

If you are in need of any Dometic refrigerator or air conditioner or A& E awning parts you can call us at 1-800-544-4881 or purchase from any dealer or Camping World location.

If we can be of any future service do not hesitate to contact us. Thank you for choosing Dometic product lines.

Customer Support Center
Dometic LLC

To ensure an accurate response, respond by 'Reply'-ing to "customersupportcenter@dometicusa.com".  The e-mail address that this reply came from does not accept incoming e-mail. Also, please add prior correspondence to all future emails.



Mike and Barbara Ryan <thory@q.com>

02/25/2011 08:02 AM

To
<customersupportcenter@dometicusa.com>
cc
Subject
Voltage fluctuation





Hi,
I recently purchased a new Forest River R Pod and after reading various forums on RV appliances have come up with some questions regarding the air conditioner and refrigerator in the unit, both of which are Dometic.

Air conditioner is Model# 641915301C0 Serial 03499594
Refrigerator is    Model# RM8501          Serial# 01,300,050 00

The question has to do with the electrical power at camp grounds. I understand there can be surges, undervoltage, open grounds and reverse polarity issues.

If while operating, either of these appliances experience this type of electrical issues will it harm them?

A surge protector will protect against all the issues except undervoltage which is rumored to be bad for the air conditioner.
A voltage management unit will protect against all these issues.

Is undervoltage an issue?

Does this model air conditioner have a time delay if low voltage detected?

Probably my biggest issue is the undervoltage>

Thank you for your time in answering these questions
Mike Ryan

thory@q.com
cell 719-269-0728

 
Mike & Barb, R Pod 173 - TV 2011Silverado
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Direct Link To This Post Posted: 02 Mar 2011 at 7:01pm
That voltage range sounds just about right.  I always recommend 110 to 125 for any AC appliance, partly because the numbers are a little easier to remember.  If you don't have one already, buy a Kill-a-Watt.  First you can use it around the house to find out how much energy you are using (I found an older freezer was using too much so I replaced it).  Then instead of throwing it in a drawer, keep it in the 'pod.  I keep mine plugged into an outlet that is visible as I enter from outside so I can keep an eye on the utility voltage during the day in camp.  Usually you won't have a problem in the spring and fall, but during the summer when every other camper has their A/C on high in the mid-afternoon the voltage can drop.  If it goes below 110, turn off your own A/C, don't use the microwave, and turn off the electric heat element on the water heater.  When you first get into camp its also a good idea to check the voltage when you first hook up (no matter what season or time of day) to be sure you have a good outlet.  Some times you'll find a bad one.
Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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Direct Link To This Post Posted: 03 Mar 2011 at 9:34pm
Thanks for the info I'll look for a Kill a watt, I am also going with the surge protector which will kill the power to everything when either high or low voltage occurs. Resets after 2 1/2 minutes
Mike & Barb, R Pod 173 - TV 2011Silverado
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Direct Link To This Post Posted: 03 Mar 2011 at 10:01pm
Do you have a link to the model you are looking at?
Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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Direct Link To This Post Posted: 06 Mar 2011 at 7:56am
Mike & Barb, R Pod 173 - TV 2011Silverado
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Direct Link To This Post Posted: 06 Mar 2011 at 9:16pm
That looks like the one I had for my motor home.  I would have to go look at it to be sure.  They are well worth the money.

Terry
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Saint Augustine, FL: The first permanent European settlement in the USA: 1565
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Direct Link To This Post Posted: 06 Mar 2011 at 9:32pm
Looks good, covers all bases. 
Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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Direct Link To This Post Posted: 06 Mar 2011 at 10:06pm
I like the idea of permanently installing a surge protector in my r-pod.  But, I see that the ones from Progressive Industries allow voltages from 104-132... well outside the 108-122 volt range recommended by Dometic.

I wonder if a breaker-type surge protector could be used in the converter?
Craig :: 2009 RP171 towed by a 2017 F150
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Direct Link To This Post Posted: 07 Mar 2011 at 11:07am
We have been following the surge protector thread closely. Would anyone who has installed a hard wired protector care to give instructions? We are trying to decide between the mobile type and the hard wired type and wonder about the difficulty of the install of the hard wired type. Husband is pretty handy but always likes to assess the difficulty factor of a new job before he decides whether or not to DIY.

Thanks in advance for all your help!
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Direct Link To This Post Posted: 07 Mar 2011 at 3:44pm
Without actually opening anything up to check, it should be a matter of opening up the back of the converter, unscrewing the terminals where the plug is attached, rerouting/reattaching the wires from the plug to the input on the surge protector, then adding 10 gauge wiring between the output of the surge protector to the terminals on the converter where the plug was.
Doug ~ '10 171 (2009-2015) ~ 2008 Salem ~ Pod instruction manual
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