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Old 06-21-2011, 09:20 AM   #1
ksboy
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Dometic dual zone thermostat

Help, we just picked up our new Big Sky 3700 and we are currently connected to 30amp service, due to the fact that I do not have a 50amp extention to reach the box. The thermosat is giving me fits and not allowing me to set zones 1 and 2 prooerly, due to the lower voltage, I think this might be the case. Am I wrong in my thinking or does anyone have this thermostat so I can call them and they can talk me thru how to set it

Ray ksboy
 
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Old 06-21-2011, 10:29 AM   #2
racerjoe
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Try calling dometic for help. It may not be a voltage issue but something in there controller. They are pretty good about helping.
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Old 06-21-2011, 01:31 PM   #3
CRUZIN 2
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ksboy

Is this the thermostat on the bottom of this page if so, I may be able to help.



http://keystone-montana.com/index.php?page=gallery
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Old 06-21-2011, 03:04 PM   #4
snfexpress
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Your voltage should be the same as if you are using 50 amps, ie about 120. It is only the amount of current that you can use that is reduced when you use a 30 amp service.

Here is the way it goes:

50 amp service means you get 50 amps of 120 volts on each leg of your Monty. So, you are actually getting 100 amps, an amount you will probably never exceed.

30 amp service means you get 30 amps of 120 volts spread over each leg of your Monty. So, you are only getting 30 amps. This is because a 30 amp adapter takes the one supply of 30 amps and combines it so that it can flow to each leg. If you use the microwave and the hot water heater and the air conditioner, you will probably exceed 30 amps. With 50 amp service you would have to exceed 50 amps on each leg of service before you would trip a breaker.

Now, to your original problem. Your thermostat does not operate on A/C current - it operates on 12 volts DC, so your being plugged into 30 amps has nothing to do with the problem you are inquiring about.

Hopefully, someone can help you with your thermostat. I just wanted to give you a better understanding of your shore power hook up.
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Old 06-21-2011, 03:25 PM   #5
ksboy
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Thanks ton everyone for all your good comments and advise. I borrowed another 50 amp cord and got the thermostat reprogrammed.

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