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Old 04-08-2019, 05:33 AM   #1
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Rooftop solar prep wire routing

I have been following and reading many posts concerning the wire routing for rooftop solar prep. I have a 2019 Eagle 321rsts with the rooftop solar prep. I cannot find the terminal ends. I looked behind the ceiling fan switch on the hallway wall, under the control panel...nothing found. No 8ga wiring in red / black. I looked behind the panel next to the battery compartment in front storage area. Found some 8 ga red/black wiring in wire looming, but these ran to the power levelers. I emailed Jayco and they sent back this resonse “We do not send electrical prints to customers during warranty period.” Has anbody found the wire routing? Any help is appreciated. Seems crazy to run my own wiring when it is already there. I only want to place one 100 watt panel to get started. Mostly to keep batteries topped off when the unit is in storage. I do have the residential refrigerator. Only have two group 27 12v batteries now. We have never camped without electric hookup. I do have a small 2200 watt generator in case we need to charge batteries and also in case we dont get a site with electric when we travel. Not looking to set up the unit for boondocking.
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Old 04-08-2019, 06:15 AM   #2
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I have a 2018 Eagle 321RSTS and I recently put solar in. Mine had a sticker on the wall outside the bathroom that showed where to install the charge controller because the wires were located in the wall. When I cut the hole in the wall I was surprised to see no wires! I pulled the paneling back a bit to look in to next stud cavity and found the wires. Fortunately, the wires were long enough to route to the charge controller. The battery end of the wires connect to a circuit breaker near the battery cutoff switch. If you open the panel that holds the switch you should see this diagram.
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Old 04-08-2019, 06:17 PM   #3
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Thanks BW. I will pull that panel and look for the wires.
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Old 04-08-2019, 06:25 PM   #4
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BW, since you have done some work to your Eagle already, do you happen to know the location of the water pump? I think I found it behind the utility wall for water hookup. Cant seem to find a good way to get to it. I would like to add an accumulator tank to stop pulsing pressure. Remove inner wall inside basement?
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Old 04-09-2019, 05:54 AM   #5
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Fyrehuntr, yes the water pump is behind the water utility panel. I haven't tried to access it yet, but the basement inner wall comes apart in sections pretty easily. So gaining access to the pump shouldn't be too bad.
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Old 04-11-2019, 10:17 AM   #6
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Quote:
Originally Posted by Fyrehuntr View Post
I have been following and reading many posts concerning the wire routing for rooftop solar prep. I have a 2019 Eagle 321rsts with the rooftop solar prep. I cannot find the terminal ends. I looked behind the ceiling fan switch on the hallway wall, under the control panel...nothing found. No 8ga wiring in red / black. I looked behind the panel next to the battery compartment in front storage area. Found some 8 ga red/black wiring in wire looming, but these ran to the power levelers. I emailed Jayco and they sent back this resonse “We do not send electrical prints to customers during warranty period.” Has anbody found the wire routing? Any help is appreciated. Seems crazy to run my own wiring when it is already there. I only want to place one 100 watt panel to get started. Mostly to keep batteries topped off when the unit is in storage. I do have the residential refrigerator. Only have two group 27 12v batteries now. We have never camped without electric hookup. I do have a small 2200 watt generator in case we need to charge batteries and also in case we dont get a site with electric when we travel. Not looking to set up the unit for boondocking.
I found my roof top solar prep wires behind wall next to bathroom sink area by the stairs. Both wires for roof solar and battery pos/neg in same place cut and capped. I verified location with electrician's battery operated 'Tone Generator'. Hooked it up on roof solar connection, set the 'Tone' to pulse and used the tone gen receiver to here the tone through the wall. Solar wires were about 2 feet from Jayco Solar Here sticker - Go Figure! Good Luck
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Old 05-20-2019, 05:04 PM   #7
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I have a 2018 321RSTS as well and I found my roof and side panel solar connector wires were behind the panel that holds the battery disconnect. They are both connected to a constant power buss bar that goes to the battery disconnect switch.
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Old 07-29-2020, 05:36 PM   #8
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Oh, now that's interesting! So its already hooked up to the roof receptacle and all I have to do is plug in the solar panels. And here I've been looking for some connection I need to make. Ya know, I hesitate to ever expect a solution to be simple. So its 8ga wire to the roof...any idea how long the wires are to the roof?
Thanks so much, what a relief....
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Old 09-28-2020, 06:44 PM   #9
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Just wanted to see if you got your panels connected. I'm still chasing wires, found 2 red wires capped off behind the solar sticker, but none going down to the battery compartment.
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Old 09-28-2020, 07:22 PM   #10
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Originally Posted by felidoc1 View Post
Oh, now that's interesting! So its already hooked up to the roof receptacle and all I have to do is plug in the solar panels. And here I've been looking for some connection I need to make. Ya know, I hesitate to ever expect a solution to be simple. So its 8ga wire to the roof...any idea how long the wires are to the roof?
Thanks so much, what a relief....
Stay Safe
John
You may know this but you can’t just plug in the panels, you need a solar charge controller between the panels and the battery.

The wires should go to solar MC connectors on a bracket on the roof.
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Old 10-01-2020, 01:39 PM   #11
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There should be a black wire there too, but not cut. Find the black wire, cut it, check each end with a voltmeter, pos lead on voltmeter to red wire with + sticker on it. That is the black connected to battery. Now you have both ends, from roof, and to battery. Install controller, install panel and you are good to go. Took me about an hour to do the entire installation.
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