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fry5family · 01-22-2022, 12:37 PM

We are replacing our Magnum ME2012 inverter/charger with a Victron MultiPlus-II.

Problem -- We have the expected 4-line 50amp cord going to the transfer switch, but the line in to the inverter from the transfer switch only has one leg. They installed a jumper in the inverter Line In from line 1 to line 2.

So, instead of 2 hot lines coming in, it is just one hot line jumped.

The output from the inverter is the expected 4-line to the breaker panel.

Question -- Is 3-wire in and jumping line 1 and line 2 at the inverter standard for Monaco?

Question -- Can I use the same line in jumper with the Victron inverter?

Thanks in advance,

Mike and Deb Fry
2005 Monaco Knight 38PDQ and 2015 Honda CRV

jacwjames · 01-22-2022, 12:48 PM

Do you have a wiring diagram for you coach, it would show on that how it is wired.

I have a TRACE inverter, it is wired with two lines feeding from the main service panel and then two lines back to a subpanel. But all Monaco's are different.

src · 01-23-2022, 12:51 PM

I upgraded my inverter and was wondering the same thing

Iceclimber · 01-24-2022, 09:22 AM

https://invertersrus.com/product/vic...SAAEgKMqvD_BwE

Is this your model of inverter ?

My coach is wired with a single inbound A/C connection from shore power, if I understand - you have 2 ?

doublechevy · 01-24-2022, 03:33 PM

my 2008 Knight inverter is wired the same as yours

1 line from single 30A breaker to inverter and then jumper from input 1 to input 2

vito.a · 01-24-2022, 03:37 PM

All three of our Monaco coaches have had both hot legs plus neutral going to the inverter.

Our coaches are wired from the transfer switch to the main breaker panel. Then there are breakers (two 20 amp for a 2000 inverter, two 30 amp for a 3000) from the main breaker panel to the inverter. From the inverter there are two legs plus neutral to an inverter circuit breaker sub panel. The sub panel supplies both pass through as well as inverted power to several systems in the coach.

fry5family · 01-25-2022, 08:39 AM

Thanks Vito.A for your reply. It answers why the transfer switch has 4 wire out and the inverter/charger has 3 wire in. Where is the sub panel for the "inverter out" typically located on these coaches? The inverter is in the passenger rear bay under the breaker box in the bedroom. For now, I wired the AC in on the MultiPlus II with the 3 wire and a jumper from leg 1 to leg 2 the same as the Magnum.

Mike and Deb Fry
2005 Monaco Knight 38PDQ and 2015 Honda CRV

jacwjames · 01-25-2022, 08:53 AM

Mine is the way Vito explained it.

The subpanel should be easy to find, mine is mounted next to the main panel in the bedroom. It's grey with the breakers accessible and labeled.

doublechevy · 01-25-2022, 09:05 AM

The Knight model may not have a subpanel

Mine does not there are 2 ckts with breakers on the inverter that serve interior outlets including microwave ckt

jacwjames · 01-25-2022, 03:31 PM

Quote:

Originally Posted by doublechevy

The Knight model may not have a subpanel

Mine does not there are 2 ckts with breakers on the inverter that serve interior outlets including microwave ckt

This is correct, I downloaded a copy of you manual, on page 285 it shows the general layout of the electrical system. There is no subpanel. Two circuits come out of the inverter, one for the micorwave, and one to the outlets.

https://www.monacocoach.com/resource...005_Knight.pdf