The Auto-Sleeper Motorhome Owners Forum (ASOF)
Would you like to react to this message? Create an account in a few clicks or log in to continue.

Fitting a a batter to battery

4 posters

Go down

Fitting a  a batter to battery  Empty Fitting a a batter to battery

Post by Molly3 Mon Feb 15, 2021 10:06 pm

I am considering  fitting a renogy 20 amp battery to battery  charger  to my nuevo with Sargent 328 system . How do find and  disconect  the  VSR  from the sargent system  so the L B  is only charged  from the  BtB   and not forming a loop . ?
Molly3
Molly3
Member
Member

Male

Posts : 409
Joined : 2017-11-06
Location : Sheffield
Auto-Sleeper : Nuevo
Vehicle Year : 2014

Back to top Go down

Fitting a  a batter to battery  Empty Re: Fitting a a batter to battery

Post by Roopert Mon Feb 15, 2021 10:26 pm

It would be advisable to speak to Sargent about this. As far as I'm aware, the EC328 has no VSR, and the split charge relay is internal.

I discussed this with them maybe 5 years ago and as far as I can recall you have to disconnect the "engine run" signal connector.

One other consequence is that the habitation appliance power remains on while the engine is running, which probably isn't an issue for most people.

But I would advise speaking to Sargent - other converters such as Bilbos still use the EC328 in new conversions, and they now use separate chargers instead of the internal split charge circuit, so it must be something that they have been familiar with for a while now.
Roopert
Roopert
Member
Member

Male

Posts : 2196
Joined : 2019-03-10
Location : South East
Auto-Sleeper : Trooper
Vehicle Year : 2005

Molly3 likes this post

Back to top Go down

Fitting a  a batter to battery  Empty Re: Fitting a a batter to battery

Post by marconi Tue Feb 16, 2021 11:44 am

EC328, does this mean you have the EM50. If so then could it really be as simple as removing 2 wires from a plug in connection. It maybe, no guarantees from me, it needs a bit of study of the installation.

Or merely Remove F8, another possibility, depending on model.

No interference with the engine run signal.

If so you are the envy of many a EC500/EC700 user.
marconi
marconi
Member
Member

Male

Posts : 927
Joined : 2019-03-17
Location : Northamptonshire
Auto-Sleeper : Nuevo EK
Vehicle Year : 2019

Back to top Go down

Fitting a  a batter to battery  Empty Re: Fitting a a batter to battery

Post by Molly3 Tue Feb 16, 2021 2:41 pm


  • Yes I have an em 50 ,   thanks Marconi..my question  is answered  . bazz
Molly3
Molly3
Member
Member

Male

Posts : 409
Joined : 2017-11-06
Location : Sheffield
Auto-Sleeper : Nuevo
Vehicle Year : 2014

Back to top Go down

Fitting a  a batter to battery  Empty Re: Fitting a a batter to battery

Post by marconi Tue Feb 16, 2021 3:36 pm

What a shame that all steps from Sargent seem to be backward ones.
marconi
marconi
Member
Member

Male

Posts : 927
Joined : 2019-03-17
Location : Northamptonshire
Auto-Sleeper : Nuevo EK
Vehicle Year : 2019

Molly3 likes this post

Back to top Go down

Fitting a  a batter to battery  Empty Re: Fitting a a batter to battery

Post by Peter Brown Tue Feb 16, 2021 4:50 pm

If you disconnect the D+ input to the EM50 you will lose automatic step retraction and the 12v supply to the fridge when the engine is running as well as losing  the engine run signal to the EC328 that does other things in addition to operating the split charge relay.

I have not tested this, but information supplied by Sargent and the installation in my van suggests that the third wire connected to the switched 12v out on the EM50, in addition to the supplies to the fridge and rear camera, is taken to the EC328 as the engine run indicator.

Just to test things, you could remove the 4 way connector in the EM50 that will allow you to confirm that the split charge system is deactivated and find out what other side effects could be - obviously the fridge won't work during that test.
Peter Brown
Peter Brown
Donator
Donator

Male

Posts : 7653
Joined : 2012-11-10
Member Age : 69
Location : Staffs
Auto-Sleeper : Malvern
Vehicle Year : 2011

Back to top Go down

Fitting a  a batter to battery  Empty Re: Fitting a a batter to battery

Post by marconi Tue Feb 16, 2021 5:21 pm

Peter Brown wrote:
Just to test things, you could remove the 4 way connector in the EM50 that will allow you to confirm that the split charge system is deactivated and find out what other side effects could be - obviously the fridge won't work during that test.

Yes that's the first test I would do, pull out the plug with the Brown/Blue, Red/Yellow cables and see if anything else if effected, ignoring the fridge, if its OK you can put the R/Y's back, the Camera feed wont be effected. Or have they set a trap.
marconi
marconi
Member
Member

Male

Posts : 927
Joined : 2019-03-17
Location : Northamptonshire
Auto-Sleeper : Nuevo EK
Vehicle Year : 2019

Molly3 likes this post

Back to top Go down

Fitting a  a batter to battery  Empty Re: Fitting a a batter to battery

Post by Molly3 Sat Feb 27, 2021 1:02 am

Thanks for advice , their are lots of  BtoB fitting videos  on utube  but none mention  existing  charging  system's,
Molly3
Molly3
Member
Member

Male

Posts : 409
Joined : 2017-11-06
Location : Sheffield
Auto-Sleeper : Nuevo
Vehicle Year : 2014

Back to top Go down

Fitting a  a batter to battery  Empty Re: Fitting a a batter to battery

Post by marconi Sat Feb 27, 2021 9:15 am

Molly3 wrote:Thanks for advice , their are lots of  BtoB fitting videos  on utube  but none mention  existing  charging  system's,

I can't give full details of wiring, anyone capable of doing the job safely will be able to work out the details, fusing etc. and just ask if there are any queries.

As far as the actual B2B goes obviously having not done it I can't recommend there either. I have not mentioned it in other threads or in my diagrams yet but with Sargent systems personally I would use the Victron Orion-Tr Smart  12/12 30 Isolated.
marconi
marconi
Member
Member

Male

Posts : 927
Joined : 2019-03-17
Location : Northamptonshire
Auto-Sleeper : Nuevo EK
Vehicle Year : 2019

Back to top Go down

Fitting a  a batter to battery  Empty Re: Fitting a a batter to battery

Post by Molly3 Sat Feb 27, 2021 7:30 pm

Thanks for information  ,  definitely  not  as plug and play  as I was hoping  , especially  as so many  motorhomes  use sargent   system .
Molly3
Molly3
Member
Member

Male

Posts : 409
Joined : 2017-11-06
Location : Sheffield
Auto-Sleeper : Nuevo
Vehicle Year : 2014

Back to top Go down

Back to top


 
Permissions in this forum:
You cannot reply to topics in this forum