 |
|
06-23-2024, 09:35 PM
|
#1
|
|
New Member
Join Date: Jun 2024
Location: Minneapolis
Posts: 6
M.O.C. #34484
|
Adding an inverter
I'm looking to add an inverter to my 2022 3121. I do have the factory inverter prep option.
I guess my key question, will I need to add a separate transfer switch, or is there already a built in one with the factory prep?
|
|
|
|
06-24-2024, 11:39 AM
|
#2
|
|
Montana Fan
Join Date: Feb 2019
Location: Oklahoma City
Posts: 181
M.O.C. #23433
|
Are you talking about an INVERTER or a GENERATOR? Never heard of factory prep for an inverter.
__________________
Troy and Tracy Chaddon
2019 Montana High Country 330RL
2005 Ford F-350 "Bulletproofed"
|
|
|
|
|
06-24-2024, 11:59 AM
|
#3
|
|
Seasoned Camper
Join Date: May 2024
Location: Out West
Posts: 67
M.O.C. #34383
|
You shouldn't need a transfer switch since the 12v circuits will still be running on 12v. The inverter would run in parallel and send power to whatever 110 AC circuits that you connect it to.
__________________
2021 Montana 3120RL. New to us as of May 2024.
|
|
|
|
|
06-24-2024, 02:55 PM
|
#4
|
|
New Member
Join Date: Jun 2024
Location: Minneapolis
Posts: 6
M.O.C. #34484
|
Adding an inverter
Playhouse
You shouldn't need a transfer switch since the 12v circuits will still be running on 12v. The inverter would run in parallel and send power to whatever 110 AC circuits that you connect it to.
Parallel circuits makes sense.
It would be nice to have the 7 designated inverter outlets live when we’re without shore power.
Thanks.
|
|
|
|
|
06-24-2024, 06:41 PM
|
#5
|
|
Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,592
M.O.C. #30417
|
If you get the Magnum Dimensions 2K inverter it has a built in TS. Mount the inverter. Connect the prep AC in and AC out, connect inverter to the batteries and install the remote switch. Easy peesy 
__________________
Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, 720 watts Solar, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
|
|
|
|
|
06-24-2024, 07:04 PM
|
#6
|
|
Montana Master
Join Date: Mar 2021
Location: Western NY
Posts: 548
M.O.C. #28430
|
I haven’t heard of an inverter prep package either. A 3121 has a residential fridge, and an inverter to run it. But, I’ve heard of a bunch of anomalies in these trailers. Anything is possible I guess. Generator prep maybe?
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, X-Factors, disc brakes, Gen-Y pinbox
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
|
|
|
|
|
06-24-2024, 07:06 PM
|
#7
|
|
Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,592
M.O.C. #30417
|
Quote:
Originally Posted by MandK
I haven’t heard of an inverter prep package either. A 3121 has a residential fridge, and an inverter to run it. But, I’ve heard of a bunch of anomalies in these trailers. Anything is possible I guess. Generator prep maybe?
|
Saw one today, advised my neighbor how to install. 
__________________
Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, 720 watts Solar, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
|
|
|
|
|
06-24-2024, 07:13 PM
|
#8
|
|
Montana Master
Join Date: Mar 2021
Location: Western NY
Posts: 548
M.O.C. #28430
|
Quote:
Originally Posted by Foldbak
Saw one today, advised my neighbor how to install. |
Interesting. Only inverter prep I’ve heard off was to add a second inverter just to power an air conditioner.
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, X-Factors, disc brakes, Gen-Y pinbox
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
|
|
|
|
|
06-24-2024, 07:17 PM
|
#9
|
|
Site Team
Join Date: Sep 2017
Location: Oro Valley
Posts: 4,086
M.O.C. #20477
|
Quote:
Originally Posted by MandK
I haven’t heard of an inverter prep package either. A 3121 has a residential fridge, and an inverter to run it. But, I’ve heard of a bunch of anomalies in these trailers. Anything is possible I guess. Generator prep maybe?
|
A 2022 3121 does not necessarily have a residential reefer. They dropped the 3120 that year and the 3121 can have either type reefer.
__________________
Zack and Donna plus Millie and Ranger
2018 3160RL
"Life is too short to stay indoors, enjoy the ride!"
|
|
|
|
|
06-24-2024, 07:20 PM
|
#10
|
|
Montana Master
Join Date: Mar 2021
Location: Western NY
Posts: 548
M.O.C. #28430
|
Quote:
Originally Posted by AZ Traveler
A 2022 3121 does not necessarily have a residential reefer. They dropped the 3120 that year and the 3121 can have either type reefer.
|
Ok, I thought that happened in 2023, thanks.
__________________
Mark & Karen
2021 3121rl - slide toppers, cottage white, X-Factors, disc brakes, Gen-Y pinbox
2021 F-350, 6.7L, SRW CC LB - B&W Companion, Bakflip cover
|
|
|
|
|
06-24-2024, 07:20 PM
|
#11
|
|
Montana Master
Join Date: Jan 2022
Location: Shingle Springs
Posts: 2,592
M.O.C. #30417
|
Quote:
Originally Posted by MandK
Interesting. Only inverter prep I’ve heard off was to add a second inverter just to power an air conditioner.
|
I have a second inverter prep for the AC. This unit had a Dometic fridge. No Inverter but a panel labeled inverter prep. I though it was odd also but there it was.
__________________
Tony & Donna & the best dog ever, Murphy.
2022 Montana HC, 295RL, 720 watts Solar, Onan 3600 LPG, 2K inverter, 200AH Lithium. 2020 GMC Denali 2500 6.6 Duramax, Demco 21K Auto Slide
|
|
|
|
|
06-25-2024, 05:48 AM
|
#12
|
|
Established Member
Join Date: Sep 2022
Location: Medina
Posts: 17
M.O.C. #31722
|
I have a 2022 3121RL and upgraded my inverter along with batteries. I have the original Magnum inverter I would sell. If interested PM me.
Thanks
__________________
Greg and Lorna
Medina, OH
22 3121RL
21 Ram 3500 SRW HO Cummins
|
|
|
|
|
06-25-2024, 06:19 AM
|
#13
|
|
Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,898
M.O.C. #24086
|
__________________
Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
|
|
|
|
|
06-30-2024, 06:04 PM
|
#14
|
|
Seasoned Camper
Join Date: Dec 2023
Location: Green Cove Springs
Posts: 90
M.O.C. #33751
|
Will your inverter provide 120 vac for the entire coach or just specific outlets.
If it is powering the entire coach you might need a power isolator or selector switch. You cannot have the inverter powering the coach and also be plugged into shore power unless the inverter is also a converter that can charge your batteries. If the inverter has a built in converter, then it will sense that shore power is applied and will not try to provide AC power to the coach, but will charge the batteries.
If the inverter does not have a built in converter, then you cannot have the inverter provide AC power at the same time shore power is applied. That's when you need a power selector switch.
|
|
|
|
|
06-30-2024, 06:40 PM
|
#15
|
|
New Member
Join Date: Mar 2024
Location: Avella
Posts: 9
M.O.C. #34037
|
This is exactly what I did in our 2021 3812ms ac in ac out and battery hook up bought it all from e trailer powers fridge and the plugs next to our bed for c paps ran remote switch into my control center
|
|
|
|
|
06-30-2024, 07:19 PM
|
#16
|
|
Established Member
Join Date: May 2022
Location: Box Elder
Posts: 36
M.O.C. #30913
|
Quote:
Originally Posted by P&CSnowBirds
I'm looking to add an inverter to my 2022 3121. I do have the factory inverter prep option.
I guess my key question, will I need to add a separate transfer switch, or is there already a built in one with the factory prep?
|
The factory inverter prep is usually for 7 outlets not for the entire trailer. If you just want those 7 outlets wired for an A/C feed you would wire in an A/C inverter using the connections supplied for the Inverter Prep. Pop over to the Montana Solar Facebook page for more info. Also if you are going to the Fall Rally there will be plenty of us there to answer more questions. https://www.facebook.com/groups/1494332544294324/
|
|
|
|
|
06-30-2024, 10:03 PM
|
#17
|
|
New Member
Join Date: Jun 2024
Location: Minneapolis
Posts: 6
M.O.C. #34484
|
Montana Master
Join Date: Mar 2021
Location: Western NY
Posts: 532
M.O.C. #28430
I haven’t heard of an inverter prep package either. A 3121 has a residential fridge, and an inverter to run it. But, I’ve heard of a bunch of anomalies in these trailers. Anything is possible I guess. Generator prep maybe?
For 2022 Montana eliminated the 3120 model number. Which designated the fridge type as gas absorption. All are 3121 and gas electric, or residential fridges are options.
My unit has 200 watts solar with 7 designated outlets for the inverter. In addition, the entertainment center, the recliner, lights and the ceiling fans run on 12 volt.
Actually thinking about testing with the batteries disconnected and shore power connected. If the entertainment center, recliners and lights don’t work then they are separate wired circuits and thus I don’t need a transfer switch.
|
|
|
|
|
06-30-2024, 10:06 PM
|
#18
|
|
New Member
Join Date: Jun 2024
Location: Minneapolis
Posts: 6
M.O.C. #34484
|
Thank you!
|
|
|
|
|
06-30-2024, 10:07 PM
|
#19
|
|
New Member
Join Date: Jun 2024
Location: Minneapolis
Posts: 6
M.O.C. #34484
|
DJgrimaldi
Location: Box Elder
Posts: 31
M.O.C. #30913
Quote:
Originally Posted by P&CSnowBirds View Post
I'm looking to add an inverter to my 2022 3121. I do have the factory inverter prep option.
I guess my key question, will I need to add a separate transfer switch, or is there already a built in one with the factory prep?
The factory inverter prep is usually for 7 outlets not for the entire trailer. If you just want those 7 outlets wired for an A/C feed you would wire in an A/C inverter using the connections supplied for the Inverter Prep. Pop over to the Montana Solar Facebook page for more info. Also if you are going to the Fall Rally there will be plenty of us there to answer more questions. https://www.facebook.com/groups/1494332544294324/
Thank you!
|
|
|
|
|
06-30-2024, 10:16 PM
|
#20
|
|
New Member
Join Date: Jun 2024
Location: Minneapolis
Posts: 6
M.O.C. #34484
|
Az traveler
Thank you!
Love your munsterlander
|
|
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Threads |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Linear Mode
