Go Back   Montana Owners Club - Keystone Montana 5th Wheel Forum > GENERAL DISCUSSIONS > General Discussions about our Montanas
Click Here to Login

Reply
 
Thread Tools Display Modes
 
Old 02-15-2018, 06:26 PM   #1
Jon Susn
Seasoned Camper
 
Jon Susn's Avatar
 
Join Date: Aug 2017
Location: Williamsburg
Posts: 55
M.O.C. #20311
Boondocking overnite generator and battery power

I have a question and hope the group here can help. I have gained some valuable information from this MOC forum and I appreciate the help you all have provided without you even knowing.
Question:
The wife and I stop overnite on occasion and have a trip planned for the little World Series in Aug. we will be stopping overnite to Boondock. I am looking at purchasing a couple of 2000 watt generators to connect in parallel to run 1 of my 15000 watt A/Cís. I have a residential refer and would like to know if we run the ac from the generator can we also run the refer from the battery power using the inverter without drawing wattage from the generator?
__________________
John and Susan
& Virtus (Our Jack Russell)
2017 Montana 3661RL
2014 FORD 250 SUPERDUTY 6.7L 4X4 PLATINUM
Jon Susn is offline   Reply With Quote
Old 02-15-2018, 07:21 PM   #2
Jon Susn
Seasoned Camper
 
Jon Susn's Avatar
 
Join Date: Aug 2017
Location: Williamsburg
Posts: 55
M.O.C. #20311
Ok. Did I post the queation wrong or in the wrong forum. I see 20 views but no comments. I wonder if I am posting incorrectly. Your input would be greatly appreciated
__________________
John and Susan
& Virtus (Our Jack Russell)
2017 Montana 3661RL
2014 FORD 250 SUPERDUTY 6.7L 4X4 PLATINUM
Jon Susn is offline   Reply With Quote
Old 02-15-2018, 07:25 PM   #3
DQDick
Montana Master
 
DQDick's Avatar
 
Join Date: Jun 2011
Location: Wilsey
Posts: 16,715
M.O.C. #11455
Have never had a residential refrigerator, but we can run one AC along with the frig and the water heater with our two Honda's.
DQDick is offline   Reply With Quote
Old 02-15-2018, 07:37 PM   #4
Jon Susn
Seasoned Camper
 
Jon Susn's Avatar
 
Join Date: Aug 2017
Location: Williamsburg
Posts: 55
M.O.C. #20311
According to the specs start up of 15000 btu is 3000 to 3500 btu. I got the run covered of 1500 to 1800 covered. I just wonder with generator hooked up can you also run the residential refer on battery power and isolate the generator for ac power only.
Thanks DQDick. I really appreciate your feedback
__________________
John and Susan
& Virtus (Our Jack Russell)
2017 Montana 3661RL
2014 FORD 250 SUPERDUTY 6.7L 4X4 PLATINUM
Jon Susn is offline   Reply With Quote
Old 02-15-2018, 09:00 PM   #5
Carl n Susan
Site Team
 
Carl n Susan's Avatar
 
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 4,033
M.O.C. #4831
OK, I will take a shot at answering this. Disclaimer: I don't have a residential refer so I have no experience with one. However I am somewhat familiar with inverters.

I believe Montana has installed a Magnum CWS 1012 inverter for the residential refer. This inverter only has connection to the 12V system for source power. It is totally unaware of the 120V power supply systems. Its only source is 12V and it outputs 120V. It always draws from the battery regardless of the existence of shore or generator power.

So to answer your question, Yes the refer will be driven by the batteries while your generator runs the AC (and other 120V appliances). Remember the converter will run when there is 120V power (unless you turn it off) and it will be charging the battery to replace the 12V used by the inverter.

I have attached the Magnum CWS inverter manual so you can see how it is connected to the 12V side and not the 120V source
Attached Files
File Type: pdf Magnum Dimensions CSW1012 Inverter.pdf (1.82 MB, 18 views)
__________________
Carl (n Susan) Youngren
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB

Carl n Susan is offline   Reply With Quote
Old 02-16-2018, 05:37 AM   #6
Jon Susn
Seasoned Camper
 
Jon Susn's Avatar
 
Join Date: Aug 2017
Location: Williamsburg
Posts: 55
M.O.C. #20311
Thanks Carl n Susan for your feedback. Our ladybug has the 2000 watt inverter but it is not a magnum brand. I do believe it is directly connected to support the fridge and only the fridge but I will have to check on that.
Thanks again for your feedback
__________________
John and Susan
& Virtus (Our Jack Russell)
2017 Montana 3661RL
2014 FORD 250 SUPERDUTY 6.7L 4X4 PLATINUM
Jon Susn is offline   Reply With Quote
Old 02-16-2018, 06:44 AM   #7
bshgto
Montana Fan
 
bshgto's Avatar
 
Join Date: Oct 2014
Location: Hagerstown
Posts: 418
M.O.C. #16013
got it

Quote:
Originally Posted by Jon Susn View Post
I have a question and hope the group here can help. I have gained some valuable information from this MOC forum and I appreciate the help you all have provided without you even knowing.
Question:
The wife and I stop overnite on occasion and have a trip planned for the little World Series in Aug. we will be stopping overnite to Boondock. I am looking at purchasing a couple of 2000 watt generators to connect in parallel to run 1 of my 15000 watt A/Cís. I have a residential refer and would like to know if we run the ac from the generator can we also run the refer from the battery power using the inverter without drawing wattage from the generator?
I do this all the time when we park at Walmart on our way to Myrtle Beach. Never had any overload problems with a 15,000a/c and have the Samsung 18 refer with 2 Yamaha 2000`s for our last High Country. I added a 3rd Yamaha 2000 to lessen the load on the other 2 but didn`t really need it.
__________________
2018.5 3791 Rear Den Montana, on the lake
Electric Brakes ..... Disk Brakes, it`s the only way
2018 F350 Ford 6.7 Dually 4:10`s w/bags Top Dog (payload 5595 lbs)
Andersen Ultimate TrailAir Pin Mor/Ryde SRE 4000 X Factors.... real smooth ride
bshgto is offline   Reply With Quote
Old 02-16-2018, 02:43 PM   #8
Carl n Susan
Site Team
 
Carl n Susan's Avatar
 
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 4,033
M.O.C. #4831
Well I was incorrect earlier. Current models appear to have a dual input inverter with a transfer switch. The inverter is connected to both 120V AC and 12V DC power. If there is 120V power available the inverter will use it (i.e. pass it through to the refer). The 12V supply is only used if there is no 120V power. The inverter plugs into a nearby 120V outlet.

It appears the refer draw isn't enough to affect dual Hondas but if you want the inverter to draw from the 12V side you will have to unplug the inverter (or turn off the breaker if it is dedicated to it).
__________________
Carl (n Susan) Youngren
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB

Carl n Susan is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Montana RV, Keystone RV Company or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 03:44 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
×