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09-09-2021, 07:12 AM
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#1
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Junior Member
Join Date: Sep 2021
Location: Essex
Posts: 8
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Swapping Atwood water heater to Suburban
Hello!
I recently purchased a 2014 346 RESA. My first camper! I noticed the water heater had burst and I purchased a used replacement. My issue is the wiring colors and quantity. From the camper there is an Orange, brown, blue and red. The replacement water heater has Green, blue and red. Help!!!!!
We really want to go camping before the season closes.
The old Atwood water heater had a blue wire connected to the red, a white to the brown, a green to the white and an orange to the orange.
I've found several schematics online that have only served to confuse me further. Surely someone has done this before and can help me? Please?
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09-09-2021, 08:41 AM
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#2
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Senior Member
Join Date: Mar 2019
Location: Brunswick Hills
Posts: 958
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Get your hands on a good multimeter and then start here: http://waterheatertimer.org/pdf/Atwo...ice-manual.pdf
Just noticed your heading was for a Suburban. Can't help you with that.
__________________
Experience is what you get when you don't get what you want.
"We'll be friends until we're old and senile,....then we'll be new friends."
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09-09-2021, 08:49 AM
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#3
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Junior Member
Join Date: Sep 2021
Location: Essex
Posts: 8
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I have a multimeter, I have no idea how to use it though... It's a Suburban water heater, not a suburban SUV!
Suburban model # SW6DE
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09-09-2021, 08:51 AM
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#4
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Senior Member
Join Date: Mar 2019
Location: Brunswick Hills
Posts: 958
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Go here: https://www.jaycoowners.com/forums/f...tch-90343.html
Post #4. Even PM the person that put that post up. May be your shortest distance between two points.
__________________
Experience is what you get when you don't get what you want.
"We'll be friends until we're old and senile,....then we'll be new friends."
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09-09-2021, 08:58 AM
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#5
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Senior Member
Join Date: Mar 2019
Location: Brunswick Hills
Posts: 958
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__________________
Experience is what you get when you don't get what you want.
"We'll be friends until we're old and senile,....then we'll be new friends."
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09-09-2021, 09:37 AM
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#6
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Senior Member
Join Date: May 2012
Location: Minnesota
Posts: 10,069
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A multimeter is a great tool, but so is Google. I would start off with a Google search, and look up the installation manuals for both water heaters. The manuals will tell you exactly which wire is for what.
Your new water heater may have more or less features than your OEM water heater, aka, propane only or an added electric heating element, auto ignition verses standing pilot light. Hence a different wire count and colors.
Just google "suburban/atwood RV water heater M#XYZ installation manual" for both units.
I have really liked this website; www.manualslib.com
Here is a sample; https://www.manualslib.com/manual/60...rban-Sw6d.html
__________________
2012 Jayco X23B for sale
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09-09-2021, 09:40 AM
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#7
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Senior Member
Join Date: Mar 2019
Location: Brunswick Hills
Posts: 958
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Jag....look up to the posts just above yours
__________________
Experience is what you get when you don't get what you want.
"We'll be friends until we're old and senile,....then we'll be new friends."
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09-09-2021, 09:58 AM
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#8
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Junior Member
Join Date: Sep 2021
Location: Essex
Posts: 8
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Thanks Jag!
The original water heater is an Atwood GC6AA-10E And I do have the manual.
The new one is a Suburban SW6DE and I found the manual online. I'm quite good with the physical aspect of the swap, but the wiring diagrams are like a foreign language to me. It's the last piece of the puzzle. If those wires are low voltage I don't think I'll damage anything with trial and error? The most confusing part is there was 4 wires to the old heater and only 3 on the replacement. Looking at the confusing (to me) wiring diagrams I think the blue wire can be eliminated as it's for a light for flame on or something.
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09-11-2021, 11:48 AM
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#9
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Senior Member
Join Date: Apr 2017
Location: Inland Empire, California
Posts: 2,180
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I replaced my tankless water heater with the exact model of Suburban you will be using. Since my old tankless didn't have the 120 volt option I had to bring in 120 volts which I controlled with a heavy duty relay so I could use a low voltage switch panel inside the rig.
Since your old water heater had electric that will be the tricky part. Some water heaters have built in relays for the 120 volts while others, such as the Suburban one you bought, do not. There is a different model Suburban (more expensive) that has the built in relay.
To feed 120 volt power to the unit you either need a heavy duty relay or a heavy duty switch. The little switch on the typical low voltage control panel probably isn't up to the task. You will be pulling above 10 amps at 120 volts.
Working with 120 volts can be dangerous so unless you feel comfortable around it, leave the install to the professional. It basically boils down to how the 120 volts was controlled in the old unit. If the water heater had a built in relay, you can't do a simple wire swap.
Here is a link to my installation.
https://www.jaycoowners.com/forums/f...ter-73569.html
__________________
Jim
Retired electronic technician (45 years in the field)
2017 Greyhawk 29W (solar & many other mods)
wife (maybe I should have given her top billing)
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09-12-2021, 09:21 AM
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#10
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Junior Member
Join Date: Sep 2021
Location: Essex
Posts: 8
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I think I’ve attached a picture, I think it comes with a relay already?
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09-12-2021, 11:31 AM
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#11
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Senior Member
Join Date: Apr 2017
Location: Inland Empire, California
Posts: 2,180
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The different Suburban water heater models:
SW6D - gas only
SW6DE - gas and electric
SW6DEL - gas and electric with 12 volt relay
SW6DEM - gas, electric, plus connection to engine cooling system
Here is a link to the manufacturer:
https://www.airxcel.com/rv/suburban/...spark-ignition
__________________
Jim
Retired electronic technician (45 years in the field)
2017 Greyhawk 29W (solar & many other mods)
wife (maybe I should have given her top billing)
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09-13-2021, 11:16 AM
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#12
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Junior Member
Join Date: Sep 2021
Location: Essex
Posts: 8
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I’ve included a picture of what I think is a relay from the old heater, my electrician friend is looking at it this evening. Wish us luck.
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09-13-2021, 07:56 PM
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#13
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Senior Member
Join Date: Apr 2020
Location: Moultrie
Posts: 234
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The yellow wire comes from the control board and supplies 12 volts to the relay when the thermostat is closed. The green wire is ground. The two black wires go to the thermostat and carry 120 volts AC.
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09-19-2021, 03:21 AM
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#14
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Junior Member
Join Date: Sep 2021
Location: Essex
Posts: 8
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To close the loop on this, success! The relay from the old water heater did the trick. Thanks everyone for the assistance.
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09-19-2021, 03:22 AM
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#15
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Junior Member
Join Date: Sep 2021
Location: Essex
Posts: 8
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Pics
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09-23-2021, 09:40 AM
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#16
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Junior Member
Join Date: Mar 2020
Location: Woodlawn
Posts: 8
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Atwood part
If you still have the Atwood , I need some parts from it . The fittings that connect the tank to the water line . Pictures included . Please let me know if you are willing to sell these parts . Thank you , Al Weaver
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09-23-2021, 09:46 AM
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#17
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Junior Member
Join Date: Sep 2021
Location: Essex
Posts: 8
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Well dang, I’d have sent them for free but I disposed of the old one on Monday. I toyed with the idea of posting the whole thing online for like $50, but I got enough junk around my house already. Sorry that didn’t work out.
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09-23-2021, 09:48 AM
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#18
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Junior Member
Join Date: Mar 2020
Location: Woodlawn
Posts: 8
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Thank you for the quick response . I can't find them anywhere . Have a Blessed weekend .
__________________
Al Weaver
WA5AEW
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09-24-2021, 08:24 PM
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#19
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Senior Member
Join Date: Aug 2016
Location: Michigan
Posts: 461
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I am glad to hear suburban has gas electric because the one we have now is propane. I hate it. I am use to the Jayco atwood which is gas electric and I love a hot shower not a surprise cold shower. Thanks for the heads up. Now to replace our tank with a gas electric.
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09-24-2021, 11:13 PM
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#20
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Site Team
Join Date: Apr 2012
Location: Newark, NY
Posts: 16,666
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Quote:
Originally Posted by yondering1
If you still have the Atwood , I need some parts from it . The fittings that connect the tank to the water line . Pictures included . Please let me know if you are willing to sell these parts . Thank you , Al Weaver
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I believe you just need the middle part of this fitting. Here's what I've found, but your size may be different. They come in several sizes and combinations.
https://www.camperid.com/zurn/qickti...e2a1835f2b1cda
You might find it at a big box store, well stocked hardware store, or larger Walmart.
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2016 Ford F150 XLT 2X4 SC 3.5L Eco Max Tow
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