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01-14-2018, 07:32 AM
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#1
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Montana Fan
Join Date: Nov 2017
Location: piseco
Posts: 258
M.O.C. #20884
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Generator install
Wondering who has installed gen sets in prepped units?
Ours has gen prep and is a Legacy so the BCM is capable of control, but would really like to use a Yamaha instead of an Onan.
The Yamaha is an inverter 220v, vs 120v and is half the money and a better unit.
__________________
2020 AT4 3500 SRW Duramax SB
2018 Denali Duramax crew (traded)
2018.5 Montana 3811MS Legacy
Lippert AirRide pinbox / PullRite SuperLight hitch
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01-14-2018, 09:05 AM
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#2
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,552
M.O.C. #2283
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The Yamaha is a better generator no doubt. I have an Onan, it’s junk. You can’t use 220 volts. You will need to get the exhaust out. This may not be as easy as you would like.
For my HC I set the generator in the truck and run a cable to the front of the camper where I have a plug in.
Lynwood
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01-14-2018, 09:08 AM
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#3
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Montana Fan
Join Date: Nov 2017
Location: piseco
Posts: 258
M.O.C. #20884
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Why don't you think 220 is usable?
As for the exhaust, I am a very good welder and should be able to get some routing.
__________________
2020 AT4 3500 SRW Duramax SB
2018 Denali Duramax crew (traded)
2018.5 Montana 3811MS Legacy
Lippert AirRide pinbox / PullRite SuperLight hitch
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01-14-2018, 07:49 PM
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#4
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Site Team
Join Date: Apr 2017
Location: Colorado Rockies
Posts: 1,922
M.O.C. #19755
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What do you plan to do with 240VAC?
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Scott & Alta
2017 Montana 3160RL, Legacy, Onan 5.5Kw, Solar
2022 F-450 Lariat Ultimate
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01-14-2018, 08:45 PM
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#5
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Established Member
Join Date: Apr 2017
Location: Concord
Posts: 49
M.O.C. #19636
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I cannot help you on the make question. I have a 2017 HC370BR with the Onan generator with no problems so far. 220 volt is 2-110 volt circuits, you will need 220 volts to run 100% of your electrical panel, 110 volt will run 50%.
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01-14-2018, 10:20 PM
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#6
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Site Team
Join Date: Apr 2017
Location: Colorado Rockies
Posts: 1,922
M.O.C. #19755
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Quote:
Originally Posted by Kenw
I cannot help you on the make question. I have a 2017 HC370BR with the Onan generator with no problems so far. 220 volt is 2-110 volt circuits, you will need 220 volts to run 100% of your electrical panel, 110 volt will run 50%.
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No, you need two 120V legs at 50A each; that is not the same as 240V. In our units there is nothing that runs on 240V.
PS: 120/240 is the correct nominal voltage. 110/220 has not been used for many years.
__________________
Scott & Alta
2017 Montana 3160RL, Legacy, Onan 5.5Kw, Solar
2022 F-450 Lariat Ultimate
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01-15-2018, 05:36 AM
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#7
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Montana Fan
Join Date: Nov 2017
Location: piseco
Posts: 258
M.O.C. #20884
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240 is two 120 legs, and as stated the unit uses two 120 legs to run the entire panel.
__________________
2020 AT4 3500 SRW Duramax SB
2018 Denali Duramax crew (traded)
2018.5 Montana 3811MS Legacy
Lippert AirRide pinbox / PullRite SuperLight hitch
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01-15-2018, 06:57 AM
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#8
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Seasoned Camper
Join Date: May 2017
Location: Charlotte
Posts: 72
M.O.C. #19870
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When they say the Rig has the "Generator Prep" what does that actually mean? I am installing one in the Spring. Did your Rig come with an Inverter and/or Auto Switch? Our Legacy Edition only came with the "Solar Prep"...which will come in handy for trickle charging when boon docking
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01-15-2018, 07:09 AM
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#9
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Montana Master
Join Date: Oct 2004
Location: Salem
Posts: 7,552
M.O.C. #2283
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[QUOTE=scottz;1084834]No, you need two 120V legs at 50A each; that is not the same as 240V. In our units there is nothing that runs on 240V.
This is what I did for emergency power for my home. Only in reverse. My Honda 3000 IS has 2 110 volt circuits. I made a power cord with 2 110 circuits into 1 30 amp 220 circuts. Now I’m powering both sides of my fuse panel with 110 power. I just haft to be careful and cut off all of 220 circuits. Works great.
Lynwood
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01-15-2018, 08:50 AM
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#10
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Site Team
Join Date: Apr 2017
Location: Colorado Rockies
Posts: 1,922
M.O.C. #19755
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[QUOTE=mlh;1084846]
Quote:
Originally Posted by scottz
No, you need two 120V legs at 50A each; that is not the same as 240V. In our units there is nothing that runs on 240V.
This is what I did for emergency power for my home. Only in reverse. My Honda 3000 IS has 2 110 volt circuits. I made a power cord with 2 110 circuits into 1 30 amp 220 circuts. Now I’m powering both sides of my fuse panel with 110 power. I just haft to be careful and cut off all of 220 circuits. Works great.
Lynwood
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That is a good idea. I tried to do the same with my Honda 5k gernerator. I made a cord to feed my house panel in reverse through the dryer outlet (of course disconnecting from purchase power first) but the GFCI breaker on the generator trips. I need to figure out why. For now I'll just use the generator and extension cords to power essential devices at the house.
You guys are correct, two 120VAC circuits will power a 240VAC device. I was just pointing out that there is nothing in my Montana that runs on 240.
Happy trails.
__________________
Scott & Alta
2017 Montana 3160RL, Legacy, Onan 5.5Kw, Solar
2022 F-450 Lariat Ultimate
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01-15-2018, 08:59 AM
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#11
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Site Team
Join Date: Apr 2017
Location: Colorado Rockies
Posts: 1,922
M.O.C. #19755
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Quote:
Originally Posted by gkonney
When they say the Rig has the "Generator Prep" what does that actually mean? I am installing one in the Spring. Did your Rig come with an Inverter and/or Auto Switch? Our Legacy Edition only came with the "Solar Prep"...which will come in handy for trickle charging when boon docking
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I can't really say; mine came with the generator installed. On mine, there is a panel in the basement storage area opposite the interior stairs that lead to the bedroom. Remove this panel (few screws) and that is where my ATS is; yours (if you have one) might be in the same place. Mine did not come with an inverter; I installed one. The second photo shows my transfer switch (cover removed).
__________________
Scott & Alta
2017 Montana 3160RL, Legacy, Onan 5.5Kw, Solar
2022 F-450 Lariat Ultimate
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01-17-2018, 05:46 PM
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#12
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Established Member
Join Date: Apr 2017
Location: Concord
Posts: 49
M.O.C. #19636
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On the question of what the prep package contains I was told that it is everything EXCEPT the generator. I ASSUME that includes the inverter and switch.
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01-17-2018, 08:06 PM
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#13
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Montana Master
Join Date: Mar 2015
Location: West Richland
Posts: 1,253
M.O.C. #17164
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As far as I know generator prep does not include an inverter. It should include the sheet metal compartment, some wiring including a transfer switch and possibly a remote start mounted somewhere in your rig. I would imagine at the end towards the generator location it would have a junction box mounted. Should only have to install the generator and wiring from genset to junction box. Depends on type of unit on which fuel (gas or propane) you will have to run to your genset.
Tom Marty
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01-17-2018, 08:26 PM
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#14
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Montana Master
Join Date: Oct 2017
Location: Bee Branch
Posts: 2,620
M.O.C. #20693
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Quote:
Originally Posted by powerhaulic
Why don't you think 220 is usable?
As for the exhaust, I am a very good welder and should be able to get some routing.
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They make some hose more or less for this purpose that you can have swivel ends installed on. I have used it on trucks in the oilfield in the past. All you have to do is weld a hose fitting on the gen exhaust and to a hard pipe leading out of your unit (be sure to get the pipe up and away from your living area might look at someone elses factory install to check for routing). The flex of the hose compensates nicely for engine vibration and makes the install a relative snap for competent welder (I weld a bit myself).
__________________
James & Irene Wilson
Bee Branch, AR.
2017 Ram 1 ton diesel duallyCrew Cab/Long Bed
2018 Montana High Country 381TH Garage Full of Toys
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01-17-2018, 10:00 PM
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#15
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Site Team
Join Date: Apr 2017
Location: Colorado Rockies
Posts: 1,922
M.O.C. #19755
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Quote:
Originally Posted by Dam Worker
As far as I know generator prep does not include an inverter. It should include the sheet metal compartment, some wiring including a transfer switch and possibly a remote start mounted somewhere in your rig. I would imagine at the end towards the generator location it would have a junction box mounted. Should only have to install the generator and wiring from genset to junction box. Depends on type of unit on which fuel (gas or propane) you will have to run to your genset.
Tom Marty
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I think you are correct. An inverter doesn't have anything to do with a generator.
__________________
Scott & Alta
2017 Montana 3160RL, Legacy, Onan 5.5Kw, Solar
2022 F-450 Lariat Ultimate
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01-18-2018, 02:29 AM
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#16
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Montana Master
Join Date: Mar 2011
Location: Okeechobee
Posts: 2,150
M.O.C. #11206
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Hi
On our 2009 the generator prep contained no hardware or switching apparatus just the sealed compartment with wires from the area behind the basement aft wall to the sealed compartment. Nothing else.
Phil P
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2009 Montana 3665RE
2009 Duramax 3500 DRW quad cab
personal web page https:// www.sallyscoffees.com
If you get a page not available then remove the "s" after HTTP
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01-18-2018, 09:47 AM
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#17
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Montana Master
Join Date: Oct 2017
Location: Bee Branch
Posts: 2,620
M.O.C. #20693
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Our new unit is "generator prepped" and it has the so called sealed compartment (really shoddy looking metal work I might add) and some wires that appear to be the remote start. There is a remote start switch if I recall (unit currently in shop) in the kitchen. I plan to completely redo the metal work to make the space useable as a storage area since the metal work does not allow you to use the full area of the storage and we don't plan to ever put a generator in the space but I want the option if we change our minds.
__________________
James & Irene Wilson
Bee Branch, AR.
2017 Ram 1 ton diesel duallyCrew Cab/Long Bed
2018 Montana High Country 381TH Garage Full of Toys
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