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03-19-2020, 12:47 PM #1
Rewiring residential refrigerator inverter to power more outlets in the trailer
Hey yall,
Anyone with the residential refrigerator and factory inverter installed, just a heads up that with minimal rewiring you can power a decent amount of the outlets in your trailer off of that inverter (1000w continuous, 2000w for a short period).
The refrigerator/inverter are off of the same branch circuit (breaker) as the rest of the outlets with the inverter being inline for the power to the fridge. The inverter passes through power to the fridge when AC (grid) power is available and switches to inverting from batteries when no AC is present (assuming you have it turned on of course). The line for the fridge is wired in parallel with the other outlets. So it goes like this:
Breaker > Hidden Outlet > Inverter >Fridge
Breaker > Other outlets around the trailer
All I did for this small change was move some wiring around and splice things together as needed to achieve:
Breaker > Hidden Outlet > Inverter > (Refrigerator + Other outlets)
I can work up a diagram if needed later but wanted to share with you all that this is doable and not too tricky. Can add a lot of convenience in the trailer when boondocking without running the generator (in my case I have upgraded battery bank and 1200w of solar).
In my 3740BH-R I can power the 2 outlets on the living room slide (by the table and the outlet the theater seats are plugged into), the lower outlet in my bunk room, the mini fridge in my outdoor kitchen, the outlet by the stove in the kitchen, and the TV and cabinet above the TV. Good enough to have a lot of the creature comforts as needed.
Added a diagram to help explain what I did. In the case of my 3740BH-R, all of the outlets on Breaker "1" are now powered by the inverter.
Here is a diagram I worked up showing the change I made
Here is the mapping for outlets to breakers in my 3740BH-R as a reference
2019 GMC Sierra 3500HD Denali Diesel DRW (Crew Cab | 8 Ft bed | OEM Puck System | Curt Gooseneck Ball for OEM Puck | Timbrens on rear axle)
2019 Grand Design Solitude S-Class 3740BH-R Fifth Wheel (Onan 5500W LP Generator | MORryde CRE3000 and HD Shackles/Wet Bolts | 3x MORryde Cross Members | 8k Axles and Disc Brakes | Sailun S637 ST | Reese GooseBox 20k 2nd Gen | Splendide Stackable Washer and Dryer)
Full Suite of Victron Energy Products (2x 5k 24v Quattro Inverter/Charger | 2x 25.6/200 LFP Smart LiFePO4 Batteries | 2880w of Solar Panels across 4x MPPTs | Cerbo GX)
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10-09-2020, 04:17 PM #2
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@cookinwitdiesel I was getting ready to post a question about how to power a Residential refrigerator on my rig when traveling when I just found your post. I just bought a 3740BH-R and apparently it came with the WF-5110R but I don't even know how it's wired up. My rig has only 1 lead acid battery with a connection ready to add a 2nd. I'm wondering if I added 2 Bettleborn LIO batteries if I would be able to run the refrigerator for a few hours while traveling?
It looks like you have a pretty amazing solar setup! I'm also thinking about the Reece 20k GooseBox. Do you think it makes a big enough difference over the standard Lippert? Did you have to get a spacer kit to install the GooseBox?
Best,
Craig
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10-09-2020, 05:27 PM #3
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What is the junction box that the inverter power goes to? KEN
Backpacker and tent camper all my life, including BSA as a kid and adult.
Motorcycle trips across the USA with a tent - 1978 to Present.
02-10-2005 - 2002 F350 SWD PSD and 2003 Citation 10'8S mostly for Crater Lake Ski Patrol.
10-29-2015 - 2016 Grand Design 380TH. It's HUGE compared to a camper.
10-19-2018 - traded truck for a 2016 Ram 3500 DRW Laramie CC 4 X 4 Long Box.
03-16-2019 - Traded Momentum for a New 2018 374TH-R Solitude
FULL TIME RV'er Nov 2021
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10-09-2020, 05:29 PM #42019 GMC Sierra 3500HD Denali Diesel DRW (Crew Cab | 8 Ft bed | OEM Puck System | Curt Gooseneck Ball for OEM Puck | Timbrens on rear axle)
2019 Grand Design Solitude S-Class 3740BH-R Fifth Wheel (Onan 5500W LP Generator | MORryde CRE3000 and HD Shackles/Wet Bolts | 3x MORryde Cross Members | 8k Axles and Disc Brakes | Sailun S637 ST | Reese GooseBox 20k 2nd Gen | Splendide Stackable Washer and Dryer)
Full Suite of Victron Energy Products (2x 5k 24v Quattro Inverter/Charger | 2x 25.6/200 LFP Smart LiFePO4 Batteries | 2880w of Solar Panels across 4x MPPTs | Cerbo GX)
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10-09-2020, 05:30 PM #52019 GMC Sierra 3500HD Denali Diesel DRW (Crew Cab | 8 Ft bed | OEM Puck System | Curt Gooseneck Ball for OEM Puck | Timbrens on rear axle)
2019 Grand Design Solitude S-Class 3740BH-R Fifth Wheel (Onan 5500W LP Generator | MORryde CRE3000 and HD Shackles/Wet Bolts | 3x MORryde Cross Members | 8k Axles and Disc Brakes | Sailun S637 ST | Reese GooseBox 20k 2nd Gen | Splendide Stackable Washer and Dryer)
Full Suite of Victron Energy Products (2x 5k 24v Quattro Inverter/Charger | 2x 25.6/200 LFP Smart LiFePO4 Batteries | 2880w of Solar Panels across 4x MPPTs | Cerbo GX)
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10-09-2020, 08:39 PM #6
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Backpacker and tent camper all my life, including BSA as a kid and adult.
Motorcycle trips across the USA with a tent - 1978 to Present.
02-10-2005 - 2002 F350 SWD PSD and 2003 Citation 10'8S mostly for Crater Lake Ski Patrol.
10-29-2015 - 2016 Grand Design 380TH. It's HUGE compared to a camper.
10-19-2018 - traded truck for a 2016 Ram 3500 DRW Laramie CC 4 X 4 Long Box.
03-16-2019 - Traded Momentum for a New 2018 374TH-R Solitude
FULL TIME RV'er Nov 2021
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05-09-2021, 08:47 AM #7
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Hey Cookinwitdiesel, I have some additional questions about how to add power to outlets off my existing Momentum 397th. Looks like similar set up as in your example. Can I contact you directly? David
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05-09-2021, 09:42 AM #82019 GMC Sierra 3500HD Denali Diesel DRW (Crew Cab | 8 Ft bed | OEM Puck System | Curt Gooseneck Ball for OEM Puck | Timbrens on rear axle)
2019 Grand Design Solitude S-Class 3740BH-R Fifth Wheel (Onan 5500W LP Generator | MORryde CRE3000 and HD Shackles/Wet Bolts | 3x MORryde Cross Members | 8k Axles and Disc Brakes | Sailun S637 ST | Reese GooseBox 20k 2nd Gen | Splendide Stackable Washer and Dryer)
Full Suite of Victron Energy Products (2x 5k 24v Quattro Inverter/Charger | 2x 25.6/200 LFP Smart LiFePO4 Batteries | 2880w of Solar Panels across 4x MPPTs | Cerbo GX)
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05-09-2021, 10:14 AM #9
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Is their a good number or email for you? I am not an electrician or DIY guy when it comes to electronics? Was hoping you might have some suggestions where to start with finding a resource?
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05-10-2021, 02:17 PM #102019 GMC Sierra 3500HD Denali Diesel DRW (Crew Cab | 8 Ft bed | OEM Puck System | Curt Gooseneck Ball for OEM Puck | Timbrens on rear axle)
2019 Grand Design Solitude S-Class 3740BH-R Fifth Wheel (Onan 5500W LP Generator | MORryde CRE3000 and HD Shackles/Wet Bolts | 3x MORryde Cross Members | 8k Axles and Disc Brakes | Sailun S637 ST | Reese GooseBox 20k 2nd Gen | Splendide Stackable Washer and Dryer)
Full Suite of Victron Energy Products (2x 5k 24v Quattro Inverter/Charger | 2x 25.6/200 LFP Smart LiFePO4 Batteries | 2880w of Solar Panels across 4x MPPTs | Cerbo GX)
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