Question about Dometic Rooftop RV Air Conditioner

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Rv roof air conditioner installation

I want to install a new a/c unit in an old school bus I am converting. How do I hook up the inverter, battery, alternator and a/c unit. I plan on using a generator when stopping, but on the road I need internal 110. I have no idea what connections I make.

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  • mvaclaw Jan 11, 2009

    I am not concerned about the placement of the a/c. I asked how I am suppose to wire the power supply ! What connections are necessary? Where are the connections made? How do I connect the inverter, battery , alternater, and a/c

  • mvaclaw Jan 11, 2009

    Helpful..thank you

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Refer to the link :)

http://www.seamach-marine.com/install.htm



Thnks.

Posted on Jan 11, 2009

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Following procedure will help you to connect things like ac ,microwave etc in you vehicle like bus trucks etc.read the instructions as how i would do it.:
The first step is to run the wiring. Place your inverter where you plan to mount it and determine where the wires are going to enter the side compartment.Be sure to leave a little slack in the wires so you have room to move things around and connect the wires to the inverter. Now drill the holes using the correct size drill bit for the grommets. Install the grommets and fee the wire through them. Attach the wire to the inverter and secure the inverter. If the inverter doesn?t come with any type of mounting hardware you can obtain some strapping at your local hardware store and use that to hold the inverter in place. Be sure to protect the wiring and connectors so other items in the side compartment cannot come into contact with them. Finish up this step by caulking around the grommet and where the wire passes through it to give you a good seal and keep moisture out of the side compartment.
Now connect the wires to the batteries. Use the 100amp fuse between the battery and the positive cable. Once the connections are made turn the inverter on and be sure it is functioning correctly.
I?ve run the power from the inverter to the inside of the sleeper a couple different ways. The easiest way is to use a power strip. Drill a hole large enough for the plug to go through between the side compartment and the sleeper. Pass the plug though this hole and then place a rubber grommet around the wire to protect it from chaffing. You can mount the power strip with Velcro, 2 sided tape, or with a couple of screws. Where you position it will depend on the layout of your sleeper and where the Microwave is going to live.
For your microwave you?ll want to get a 1000 watt microwave. Be sure to get one with a rotating tray as these will give you much better results. Now just mount the microwave somewhere safe and plug it in. You can also use your inverter to power a coffer pot, computer or other A/C appliances. Just be sure to keep an eye on how many watts you?re using at a given time. ALSO keep the truck running when you?re placing a lot of demand on the system. Most trucks have a high output alternator in them that will be able to keep up with your demand for this small system. This will insure that you?re inverter doesn?t shut down half way through a meal because the batteries are getting low.

Posted on Jan 11, 2009

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You can simply get the AC-DC converter in walmart or other store.
There are units up to 1000 wt (up to $60) and plug it to the sigarette lighter.
It has an outet the same as wall power outlet.
And plug the AC where. It is the safest and convenient way to operate the unit if it operates at 110-120 v.
If the unit has 12v plug it can go to sigarette lighter. In this case you dont need to do any modifications.
Good Luck

Posted on Jan 11, 2009

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You will require a certail cables to connect them.The DC output of the alternator is connected to a battery for stabilization
deep cycle battery connected to an inverter. This inverter will be controlled by one pole of a dual pole relay which is connected to a standard outlet, so that when the power goes off, the inverter kicks in. use the other pole to switch over the AC,.
thanks

Posted on Jan 11, 2009

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Air conditioners in RVs operate according to the same principles that guide a window-mounted RV in a regular home. You simply need to mount the air conditioner securely, ensure that the wiring is correct and keep the seals well maintained. If you have a knack for installing RV equipment, you should be able to do it yourself. Otherwise, you may wish to have a professional install it and observe how he does it so that you can perform similar functions more readily.Select a good location on the roof of your RV that will fit your rooftop a You want a spot that is strong enough to support it and doesn't have any obstructions such as lights in the ceiling below it. The edges of the air conditioner should be at least 8 inches away from the edge of the roof.
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Cut a square hole in the roof big enough to fit the connections between the roof portion of the air conditioner unit and the ceiling portion of the air conditioner unit. Make sure you measure it precisely. Mark the locations where the mounting bolts will go as well.
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Mount the roof portion of the air conditioner unit over the hole you have made. Secure it with mounting bolts at the locations you have marked
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Install the bolts in the interior of the RV that hold the ceiling unit in place. Then mount and secure the ceiling unit.
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Apply sealant to the points on the roof where the air conditioner meets the metal if you wish.
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Connect the wiring to their proper locations in the ceiling unit. The wires should be coded by color, allowing you to match each one with its proper corresponding wire (black to black, white to white and so on)
Plug the ceiling unit connector into the roof unit.8
Turn on the power supply to the air conditioner.9
Turn the air conditioner on.

Posted on Jan 11, 2009

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