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Old 07-01-2019, 09:36 PM   #1
LHoffman
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Question Inverter/converter

I have just purchased a 2010 3665 RE Hickory Edition Pkg. It has a 80amp Xantrex XADC converter. I think I want to install an inverter as well as my wife needs to use a CPAP machine while sleeping. It is 120v ac. Should i invest in a converter/inverter or can I add on an a inverter. I am not an electrical person.
 
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Old 07-01-2019, 09:56 PM   #2
AZ Traveler
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First - welcome to the forum!

You can just add an inverter - no need to do a combined unit. Check the CPAP machine to see how many watts are required (assuming that is the only thing you plan to power) and installed an inverter that will handle it. Nothing wrong with using professional help if you don't want to do it yourself.
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Old 07-02-2019, 09:06 AM   #3
BB_TX
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A converter "converts" AC voltage to DC voltage. An inverter does the opposite. It converts or "inverts" DC voltage to AC voltage. Adding an inverter would just require finding a place to connect to the 12 VDC power.



Are you wanting to have 120 VAC available when you are boondocking or otherwise not connnected to 120 VAC power? If so you would need to look at the power requirements of the CPAP machine and how long your battery(s) would last running the machine all night. You might need to add more battery power if the machine needs too much power.
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Old 07-02-2019, 03:53 PM   #4
PeteandJoan
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Quote:
Originally Posted by LHoffman View Post
I have just purchased a 2010 3665 RE Hickory Edition Pkg. It has a 80amp Xantrex XADC converter. I think I want to install an inverter as well as my wife needs to use a CPAP machine while sleeping. It is 120v ac. Should i invest in a converter/inverter or can I add on an a inverter. I am not an electrical person.
My CPAP is a RES/MED 37028 (VA issued to me) and I have a battery to power it (also VA issued) if I am in an area with no shore power or lose power at home. Comes with charger. Battery will last appx 13 hrs. Check with your manufacturer to seen if available . Probably cheaper than an inverter and also easier with no special installation needed.
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Old 07-02-2019, 06:00 PM   #5
Leftie Canuk
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Originally Posted by PeteandJoan View Post
My CPAP is a RES/MED 37028 (VA issued to me) and I have a battery to power it (also VA issued) if I am in an area with no shore power or lose power at home. Comes with charger. Battery will last appx 13 hrs. Check with your manufacturer to seen if available . Probably cheaper than an inverter and also easier with no special installation needed.
Pete,
A quick look at the user guide shows 90 watts power usage. If on 120 V AC, that's about 8 amps. If you look at the efficiency of an inverter as 80%, something as light as a 200 watt inverter would take care of the CPAP, but as others have said, you may want to think about some other AC usage that would be nice when not connected to shore power (e.g. TV, sound system, coffee machine, electric toothbrushes, etc). If in doubt or not comfortable with electrical wiring, consulting an electrician with RV system experience might be the most comfortable way to proceed.
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