Looking for guidance -Honda EU 7000is install

[Detroit Don]

Hi all - Recently purchased a 2020 3740FK. Wanted to put a good genny on it so I bought a Honda EU 7000 is inverter. Anyone have install pics and/or rigging advice? Figured I'd mount it in the most forward storage area just below/behind the trailer king pin. I've got a 3500HD Duramax DRW with 5,000lbs payload so not too worried about pin weight. I'm totally new to it all and don't like to make a 100 mistakes trying to figure it all out. Also, it only has a 30 Amp plug in. How do I take advantage of all that wattage? Thanks for any info/suggestions/tips you may have.

[AZ Traveler]

Mount it in the bed of your truck or add a rack to mount on the back of your rig. Thats a big heavy genny - you may have done better with two smaller ones that could be tied together and set up easier with a 50 amp connector.

It is not a good genny to mount internally but can likely be done if you are really handy.

[mlh]

To utilize 7000 watts or 60+ amps you will need to rewind your camper. You can’t get 60 amps through a 30 amp wire. 3500 watts is a little over 30 amps. If I were you I would get a 3500 watt predator from Harbor Freight and save a couple grand. 7000 watts is a waste. The built in units are 5500 watts.
Lynwood

[jetskier]

I looked at the manual. It has both a 30A-120V (3 wire twist lock) and 30A-240V (4 pin twist lock) connectors so it does produce 60A total (through 30A each leg). There's a switch to control which plug is active (120V vs 240V). You'd want to use the 4-pin 240V connector.


If you mount it in the forward compartment, you'll have to separate it from the batteries and rest of the trailer with a sheet metal firewall like the gen prep kit has. You'll also have to wire in a transfer switch, controls for remote start and plumb an exhaust. I'm not sure the rules on the gas tank and vapors in an unvented compartment. It may be easier to keep it outside.

[Detroit Don]

Nice answer - thanks. Pretty much the type of information I needed to know. I’d rather take the time to do that right and never be at a lack for power. I do plan on boondocking quite a lot in the Pacific Northwest and it can get pretty cold over here.

[DQDick]

The only safe thing to do is to keep it outside. Sooner or later the CO2 will seep into the rig or you'll have to rig some elaberate exhaust system that the Honda wasn't built for. Also filling it with gas and the fumes could be another issue.

[Detroit Don]

Originally Posted by DQDick

The only safe thing to do is to keep it outside. Sooner or later the CO2 will seep into the rig or you'll have to rig some elaberate exhaust system that the Honda wasn't built for. Also filling it with gas and the fumes could be another issue.

I’ve seen lots of folks running a generator on board. Not so sure why this would be that much different. A simple exhaust out the side or through the floor should fix that problem wouldn’t it? Also there’s plenty of air circulation on the underside of the fifth wheel where I’m going to be putting it. I guess I’m not understanding why my particular generator would be so much different than the Onan generator’s I see others installing.

[bshgto]

Originally Posted by Detroit Don

I’ve seen lots of folks running a generator on board. Not so sure why this would be that much different. A simple exhaust out the side or through the floor should fix that problem wouldn’t it? Also there’s plenty of air circulation on the underside of the fifth wheel where I’m going to be putting it. I guess I’m not understanding why my particular generator would be so much different than the Onan generator’s I see others installing.

Fueling and SAFE exhaust removal would be his biggest problems to overcome non of which are a problem with the factory installed type.

[DQDick]

Originally Posted by Detroit Don

I’ve seen lots of folks running a generator on board. Not so sure why this would be that much different. A simple exhaust out the side or through the floor should fix that problem wouldn’t it? Also there’s plenty of air circulation on the underside of the fifth wheel where I’m going to be putting it. I guess I’m not understanding why my particular generator would be so much different than the Onan generator’s I see others installing.

If you've looked at the exhaust on the generator you notice there is a difference. To get an airtight seal you'll need to do some serious reworking on the case and the exhaust.

[tkkmcjo]

Originally Posted by Detroit Don

I’ve seen lots of folks running a generator on board. Not so sure why this would be that much different. A simple exhaust out the side or through the floor should fix that problem wouldn’t it? Also there’s plenty of air circulation on the underside of the fifth wheel where I’m going to be putting it. I guess I’m not understanding why my particular generator would be so much different than the Onan generator’s I see others installing.

Unless your unit has the factory gen prep, I would also recommend keeping it outside. Aside from some of the operational challenges others have mentioned, the gen prep provides a firewall, heat resistant and noise insulation and proper exhausting for all fumes and gasses. Above all,keep safe!

[Dan50]

Originally Posted by Detroit Don

I’ve seen lots of folks running a generator on board. Not so sure why this would be that much different. A simple exhaust out the side or through the floor should fix that problem wouldn’t it? Also there’s plenty of air circulation on the underside of the fifth wheel where I’m going to be putting it. I guess I’m not understanding why my particular generator would be so much different than the Onan generator’s I see others installing.

The Cummins Onan generators you are referring to are designed to be used in the front enclosures of fifth-wheel RVs. They draw their fresh air and expel their exhaust through the bottom of the factory-installed Generator prep enclosure. The Onan is designed to run inside the enclosed with the door shut and not overheat or suffer any ill effects. Your Honda is not.
Wiring is already installed as well as a remote starting switch on the inside of the fifth.

[MARK A]

A Honda generator will get hot and quit in that compartment. A considerable amount of work would be necessary to get a questionable result. Access for maintenance being #1.
The on board generators are specifically built for that application. I would put it in the bed of the pickup bolted down as someone else replied.

[Detroit Don]

Originally Posted by MARK A

A Honda generator will get hot and quit in that compartment. A considerable amount of work would be necessary to get a questionable result. Access for maintenance being #1.
The on board generators are specifically built for that application. I would put it in the bed of the pickup bolted down as someone else replied.

Advice duly noted. Enough opinions have suggested as much so that’s what I’ll do. Thanks to all for the input!

[Last2Die]

Or just bite the bullet and get one of these...

[Last2Die]

Something like this, old truck old set up

[Detroit Don]

Originally Posted by Last2Die

Something like this, old truck old set up

Thanks for the picture. Makes sense to mount on the truck for several reasons. I’ve got two 30amp outlets on the Honda, one 120 volt and a 120/240 volt. I need to get a 30amp/30amp male to 50amp female adapter made so I can utilize all the watts available.

Like this only it is 30/15 to 50
http://https://www.amazon.com/Cynder.../dp/B07BZDHJWS

[R.S.O'Donnell]

Originally Posted by Last2Die

Something like this, old truck old set up

Love your exhaust setup. I have the same generator sitting sideways between my toolbox and hitch. I have been using my gas grill to try to divert the worst of the exhaust over the side of the bed but it is still getting uncomfortably hot when running hard with the front AC going.

I'm going to copy yours. Thank you for posting the picture.

[Last2Die]

[QUOTE=R.S.O'Donnell;1201775]Love your exhaust setup. I have the same generator sitting sideways between my toolbox and hitch. I have been using my gas grill to try to divert the worst of the exhaust over the side of the bed but it is still getting uncomfortably hot when running hard with the front AC going.

I'm going to copy yours. Thank you for posting

Welcome. I got the parts from Amazon. 1 inch flexible exhaust hose with 1 inch exhaust clamp. You still have the heat from the engine but at least the exhaust is diverted.

Tony

[R.S.O'Donnell]

[QUOTE=Last2Die;1201776]

Originally Posted by R.S.O'Donnell

Love your exhaust setup. I have the same generator sitting sideways between my toolbox and hitch. I have been using my gas grill to try to divert the worst of the exhaust over the side of the bed but it is still getting uncomfortably hot when running hard with the front AC going.

I'm going to copy yours. Thank you for posting

Welcome. I got the parts from Amazon. 1 inch flexible exhaust hose with 1 inch exhaust clamp. You still have the heat from the engine but at least the exhaust is diverted.

Tony

Thank you!!!

[h2ojocky]

Hey Tony, some time ago I read somewhere about someone did exactly what you are suggesting. He put a winch in the front compartment and cut out the floor. After raising the generator into position he puts some sort of metal bracing under generator to hold it in place. When he wants to use the generator he raises the generator slightly and pulls out the bracing and lowers the generator.