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Old 06-13-2014, 04:03 AM   #1
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Onan install

So I'm getting around to installing my 5500 onan generator and had a couple of questions. For those who have the factory install, does the battery cables, fuel hose and power cords all run across the top of the generator and exit the metal box on the right side Or do all of the cables and fuel hose run through the left side of the firebox?

If anyone had a pic to share that would be awesome.

Thanks in advance,
David
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Old 06-13-2014, 05:13 AM   #2
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David,
I did my own. I ran the fuel supply in from the top of the box down the left side. I also ran the high voltage cable the same route. The fuel line and high voltage cable are exposed on the left inside of the box, but are secured to the bulkhead above the box after that.

A ran the battery cables along the bottom front inside the box, then through the box direct to the batteries.

Not saying its right, but that's how I did it
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Old 06-13-2014, 01:44 PM   #3
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I ran everything straight back from the bottom left side, across the back wall, over to the ats. I hired a midget to crawl over the top of the box and then feed me the wires.
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Old 06-13-2014, 06:53 PM   #4
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Thanks for the responses guys. I'm with you Atom Ant, I'm not sure if there is really a right or wrong way to do it but I thought I would ask.

Spindrift, if I understand you correctly, all your cables exit the box on the left side, then once outside the box they make their way around the back wall or is all the routing you refer to done inside of the box?

Thanks again for the help.
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Old 06-13-2014, 07:48 PM   #5
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Originally Posted by dieseldave View Post
Thanks for the responses guys. I'm with you Atom Ant, I'm not sure if there is really a right or wrong way to do it but I thought I would ask.

Spindrift, if I understand you correctly, all your cables exit the box on the left side, then once outside the box they make their way around the back wall or is all the routing you refer to done inside of the box?

Thanks again for the help.
Exit outside the box and then around, and attached, to the back wall.
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Old 06-17-2014, 07:01 PM   #6
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Well, I've got everything completed for the install except the LP hose coming off the regulator. I couldn't find one at the local propane dealer so I ended up having to order one on line. One last question about the WFCO transfer switch. Their are jumpers in place that say to use if the neutral on the generator is capable of handling 70 amps. The transfer switch on my previous Grand Junction wasn't setup like this. Did you guys leave the jumpers in place or remove them? I looked at the manual from WFCO but it wasn't very clear what the function of these jumpers were.
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Old 06-17-2014, 11:28 PM   #7
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Isn't there a special LP regulator if you have a generator?
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Old 06-18-2014, 12:28 AM   #8
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Originally Posted by dieseldave View Post
Well, I've got everything completed for the install except the LP hose coming off the regulator. I couldn't find one at the local propane dealer so I ended up having to order one on line. One last question about the WFCO transfer switch. Their are jumpers in place that say to use if the neutral on the generator is capable of handling 70 amps. The transfer switch on my previous Grand Junction wasn't setup like this. Did you guys leave the jumpers in place or remove them? I looked at the manual from WFCO but it wasn't very clear what the function of these jumpers were.
The jumpers should remain in place for both the load side, and generator side of the switch.
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Old 06-18-2014, 03:55 AM   #9
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Isn't there a special LP regulator if you have a generator?
I'm not sure about it being special but the one that came with the gen prep package was the correct one.
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Old 06-14-2015, 06:18 AM   #10
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David,
I did my own. I ran the fuel supply in from the top of the box down the left side. I also ran the high voltage cable the same route. The fuel line and high voltage cable are exposed on the left inside of the box, but are secured to the bulkhead above the box after that.

A ran the battery cables along the bottom front inside the box, then through the box direct to the batteries.

Not saying its right, but that's how I did it
Atom ant; can you post a pic of how you run your exhaust pipe? i have the 38GK I am concerned about the ground clearance. I also installed mine. Not sure there is a right or wrong way to install the Genset.
Mark
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