Generator Location

PNWorBUST72 · February 26, 2018, 06:35:22 PM

So it appears my OTR AC isn't going to work long term, too many leaks.

So where do you guys put your genny's? I REALLY dont want to use an entire bay to the generator...but if I plan on running 2 rooftop units now while I drive, I am either putting in a monster coach side battery bank and/or a monster generator.

Have you guys thought about running two smaller ones and running the AC's on 2 seperate breaker "legs", one for each genny?

jmblake · February 26, 2018, 07:17:15 PM

I just finished installing mine in the spare tire compartment, Check out my thread on this http://www.busconversions.com/bbs/index.php?topic=32622.0 It turned out really well.
Jason

richard5933 · February 27, 2018, 04:17:13 AM

You can also look into using the engine's alternator to power a fairly large inverter, which would allow you to run things while on the road. Might minimize the size of the battery bank somewhat depending on how large your alternator is. Some of the guys on this board have done something similar and I'm sure they'll add their comments.

Geoff · February 27, 2018, 07:43:45 AM

Quote from: PNWorBUST72 on February 26, 2018, 06:35:22 PM
So it appears my OTR AC isn't going to work long term, too many leaks.

So where do you guys put your genny's? I REALLY dont want to use an entire bay to the generator...but if I plan on running 2 rooftop units now while I drive, I am either putting in a monster coach side battery bank and/or a monster generator.

Have you guys thought about running two smaller ones and running the AC's on 2 seperate breaker "legs", one for each genny?

I have an 8kW 1800rpm Isuzu diesel genset and I don't consider it a "monster". It will easily run 3 roof A/C's. A "monster" battery bank is only good for camping longer without having to recharge the batteries. The inverter might run one or two A/C's, but you need the generator while parked and not on shore power.

Mike in GA · February 27, 2018, 07:53:24 AM

A small generator can go in the air conditioning condenser compartment once you remove the condenser and fan. Larger generators need more space - I put mine in the first full bay on the driver side. Good luck.
Mike in GA

TomC · February 27, 2018, 07:54:23 AM

If you want compact, check out Powertech CDI8000 Diesel Generator. I have a 12kw genset that Dick Wright built for me that is only 36" long-without radiator.
I have a 10kw Powertech that I run going down the road for powering my 3 roof tops. Usually, 2 is all I need. Good Luck, TomC

DoubleEagle · February 27, 2018, 08:50:58 AM

All of the possible generator locations have now been mentioned, but remember that whatever you do has to be thought out and coordinated with the location of water and holding tanks, their pipes, battery and inverter banks, and how much storage space you want left over for larger items. Another key factor is not blocking accessibility to the maintenance of other items. You can fit many generators in the A/C area, but then your access to the main engine will be crimped (it is a lot easier to change the starter when laying in the A/C compartment than while laying underneath). It is quite common to put generators on a slide-out rail for easier maintenance. There is no reason to use a full baggage bay for a generator, it can be divided up with a inner wall. Another consideration is the location of the cooling air intake for the generator. Most generators do fine in any location when parked, but when they are running while on the road they can run into cooling problems because of poor airflow due the intake being in a low pressure area.

luvrbus · February 27, 2018, 09:09:48 AM

LOL I don't care which generator you use but install it as far from the bedroom as you can,they all noise under your pillow when sleeping

Branderson · February 27, 2018, 09:56:20 AM

Quote from: Mike in GA on February 27, 2018, 07:53:24 AM
A small generator can go in the air conditioning condenser compartment once you remove the condenser and fan. Larger generators need more space - I put mine in the first full bay on the driver side. Good luck.
Mike in GA

\

Yup that's were mine is at as well.

peterbylt · February 27, 2018, 11:54:19 AM

My OTR AC still works without issue, I plan on using that while driving, I also plan on installing two 12k Mini Split AC/Heat pump units for House use when not under way.

I had originally planned on using either the Champion 3500 gas generator that I already have or acquiring an 8k diesel generator to run them the few times I would not be plugged in, Then a deal that I could not turn down presented itself and I ended up buying a Powertech 20kw with under a hundred hours on it.

It came with the slide mount, The flexible exhaust and a breaker box.

I know, total over kill, will be able to power my bus and the surrounding 3 buses.

I plan on splitting the front drivers side bay and mounting the Generator in one half and one of the Mini Split outside units in the other half.

Peter

chessie4905 · February 27, 2018, 03:24:47 PM

I'd consider swapping that or selling it to get a smaller one. Even though it is a diesel, it will use a fair amount of fuel, and running lightly loaded isn't good for them. How much does that sucker weigh? Maybe you could fit up a big assed electric motor to assist engine when passing or climbing mountain s.

PNWorBUST72 · February 27, 2018, 03:30:29 PM

Quote from: richard5933 on February 27, 2018, 04:17:13 AM
You can also look into using the engine's alternator to power a fairly large inverter, which would allow you to run things while on the road. Might minimize the size of the battery bank somewhat depending on how large your alternator is. Some of the guys on this board have done something similar and I'm sure they'll add their comments.

I always thought the alternator was just enough to charge the batteries mostly, how is it gonna power 2-3 rooftop units? Are you talking about multiple 24v alternators and a 24v coach side battery bank and just letting the alt's charge the batteries for you? Can you help explain that one to me, I love the idea.

luvrbus · February 27, 2018, 03:54:19 PM

If you have the original 50D Delco alternator they were 270 amps someone here can tell you how many watts but it over 5,000 w

eagle19952 · February 27, 2018, 03:56:06 PM

Quote from: PNWorBUST72 on February 27, 2018, 03:30:29 PM
I always thought the alternator was just enough to charge the batteries mostly, how is it gonna power 2-3 rooftop units? Are you talking about multiple 24v alternators and a 24v coach side battery bank and just letting the alt's charge the batteries for you? Can you help explain that one to me, I love the idea.

with a huge inverter and with more batteries than 8 8d's.

PNWorBUST72 · February 27, 2018, 05:53:23 PM

So lets say for SNG, a 5000 watt inverter pulling from an unknown size battery bank, being charged by the 270amp alternator, feeding two 1700watt AC's? The math is something like 240 AMP x 24V= 6420 Watts or so says Google...

How do you MATH the battery bank size?