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  #1  
Old 10-06-2019, 04:16 AM
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JoopSJ JoopSJ is offline
 
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Location: The Netherlands
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Default Request full elec schematic EFII BUS mngr

Anyone with the following setup that is willing to share their full electrical schematic with me?

EFII bus manager
Two batt
Pri and Stby alternator B&C ext regul
b&C volt regulators
G3X

Thank you
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  #2  
Old 10-06-2019, 06:55 AM
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Hi Joop,

So what information are you looking for? Iím installing the bus manager in my build and for the most part Iím just following the instructions that came with it. Thereís a jumper wire inside the unit that needs to be removed...or left in place...depending on if youíre using one (or two) alternators...(I donít remember which way right off hand).

Iím using two batteries, (one lead acid/one lithium), but only the lead acid one will be used for starting; the lithium is just there for backup power...(Iím only running one alternator so I want a big healthy backup battery in place in the event I loose alternator power).

The main things I like about the bus manager is that it simplifies essential and main bus wiring, it senses low fuel rail pressure and automatically activates the backup fuel pump, and it allows you to mix and match lead acid and lithium battery in your charging system...(which is usually a no no).
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RV-7- IO-360, EFII, Whirl Wind C/S, (Built and sold)
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RV-8- IO-360, Hartzell C/S (Flying)
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  #3  
Old 10-06-2019, 08:55 AM
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Hi Mark,
Indeed, bus manager simplyfies the wiring and the schematics provided are very clear.
The only thing is that I want to make sure the part ďLEFTĒ of the bus manager (ALT, SHUNT, ANL, BATT) is wired correctly.
I think even while that is straight forward, I just want to compare my setup to check that I didnít miss anything.
Eventually I will send my final plan to Robert for verification.
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  #4  
Old 10-06-2019, 10:23 AM
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I wish that I could be more help with giving you tips or helping you confirm proper installation of your wiring, but my setup will be a little bit different from yours. Iím actually incorporating the new Primary Power System (PPS) from Vertical Power. The functions that you get out of a standard setup using a SHUNT, ANL, etc., are built into the PPS, so like the bus manager, itís simplifying my wiring. Iím sure Robert will be able to confirm that you have everything wired correctly.
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RV-7- IO-360, EFII, Whirl Wind C/S, (Built and sold)
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  #5  
Old 10-06-2019, 08:49 PM
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Default automatic pump switching

Just be aware of single points of failure.



Some food for thought here, this issue starts at post #56.
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O-360, 8.5:1, vert sump, dual SDSEFI EM-5-F
Z-14 modified for EFI
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  #6  
Old 10-06-2019, 11:39 PM
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Quote:
Originally Posted by johnbright View Post
Just be aware of single points of failure.



Some food for thought here, this issue starts at post #56.
Yes, I commented on this thread. For the reason youíre pointing out Iím installing duel relays running in parallel with each other. Each fuel pump will have itís own relay but will also be able to be powered by the opposite relay. Each fuel pump will also be powered by its own separate circuit breaker.
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Mark H.
RV-7- IO-360, EFII, Whirl Wind C/S, (Built and sold)
RV-4- O-320, Catto three blade, P-Mags (Sold)
RV-8- IO-360, Hartzell C/S (Flying)
RV-7- (Building)
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  #7  
Old 10-07-2019, 01:58 AM
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JoopSJ JoopSJ is offline
 
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@Mark. Could you show me how you wired the second relay? I think thatís a good improvement.

@Jhon, yes I read that thread and your input. I also received a PM from another member pointing me to the same issue. I will receive his settup later.
Does the second relay as indicated by Mark take away your doubts and make the setup acceptable for you.
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  #8  
Old 10-07-2019, 09:30 AM
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Joop,
Iím going to send a PM to you.
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RV-7- IO-360, EFII, Whirl Wind C/S, (Built and sold)
RV-4- O-320, Catto three blade, P-Mags (Sold)
RV-8- IO-360, Hartzell C/S (Flying)
RV-7- (Building)
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  #9  
Old 10-08-2019, 06:55 AM
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Default Bus Manager pump wiring

Quote:
Originally Posted by JoopSJ View Post
@John, yes I read that thread and your input. I also received a PM from another member pointing me to the same issue. I will receive his settup later.
Does the second relay as indicated by Mark take away your doubts and make the setup acceptable for you.
Hi Joop,

I'm personally planning on a modified Z-14 because I know how to do a failure analysis on it and because the engine will continue to run with the battery contactors off in event of electrical fire in the cockpit.

Some thoughts though on wiring dual pumps with Bus Manager here.
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John Bright, RV-6A 25088, at FWF
O-360, 8.5:1, vert sump, dual SDSEFI EM-5-F
Z-14 modified for EFI
Newport News, Va

Last edited by johnbright : 10-08-2019 at 07:05 AM.
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