Auto Start Gen Inverter Changeout

[bdmckenna]

I just removed the Trace 2000W inverter/charger and replaced it with a 3000W Aims pure sign inverter/charger. My question is does anyone know what wires are what for the auto start low voltage for the Quiet Diesel 7500?

2003 HR Sceptor PBD (built on a Friday)

[jacwjames]

Not 100% sure but I can tell you the color wires on the switch. The switches are all daisy chained. I have two remote switches, one on the front dash, one in the bedroom next to the bed. Also a switch on the inverter panel, and one on the generator.



The switch wires are

Brown >> Ground
Green >> Stop
Red >> Start
Blue >> Indicator Light, these wires were just wire nutted together in the inverter connection box to pass the signal through to the remote switches.


You might pull a switch and confirm if these wires are attached. You could also check to see if the blue wire is present on the "BIRD" if you have one, or the Intellitec EMS board if you have one. This how the EMS determines if the generator is running and the BIRD is for combining chassis and house batteries for charging.



But the low voltage start may be part of the inverter panel "brains". And then it sends the signal to start the generator.



You might check you old inverter display and confirm how it is wired.

[vito.a]

I removed a Trace inverter and installed a Magnum.
Attached are my wiring notes. The color coding from the generator should help.
What brand AGS are you using?

[bdmckenna]

Originally Posted by vito.a

I removed a Trace inverter and installed a Magnum.
Attached are my wiring notes. The color coding from the generator should help.
What brand AGS are you using?

I went with an AIMS. The AGS is built in and start voltage is set from the panel installed where the old RCG7 was.



https://theinverterstore.com/product/70336/

[bdmckenna]

Originally Posted by vito.a

I removed a Trace inverter and installed a Magnum.
Attached are my wiring notes. The color coding from the generator should help.
What brand AGS are you using?

Thank you! Let me work on this and see what I can find out.

[bdmckenna]

Originally Posted by jacwjames

Not 100% sure but I can tell you the color wires on the switch. The switches are all daisy chained. I have two remote switches, one on the front dash, one in the bedroom next to the bed. Also a switch on the inverter panel, and one on the generator.



The switch wires are

Brown >> Ground
Green >> Stop
Red >> Start
Blue >> Indicator Light, these wires were just wire nutted together in the inverter connection box to pass the signal through to the remote switches.


You might pull a switch and confirm if these wires are attached. You could also check to see if the blue wire is present on the "BIRD" if you have one, or the Intellitec EMS board if you have one. This how the EMS determines if the generator is running and the BIRD is for combining chassis and house batteries for charging.



But the low voltage start may be part of the inverter panel "brains". And then it sends the signal to start the generator.



You might check you old inverter display and confirm how it is wired.

Turns out the one owner coach happened to be an electrical hack. I spent two days rewiring things under the dash. Working on a few other shall we say "opportunities" now. The Gen Start wasn't even hooked up so I don't know how it came from the factory.

[bdmckenna]

Well, the inverter/charger is working and all areas that should have power off the inverter are working.


Next problem. I lost all the 12v inside the coach. Used my Fluke and tested everywhere for power going up into the coach and I'm good with power up.


Can anyone tell me what this mess is?

[jacwjames]

The house 12 volt power on my coach is controlled ON/OFF with the salesman switch at the front door. Turn the switch Off and not 12 volt power. I have a relay in my passenger side rear electrical bay that shuts the power off.

It is located near my house disconnect switch, I can follow the wires and ultimately it goes to the relay.



Do you have any wiring diagrams for your coach?

[bdmckenna]

Originally Posted by jacwjames

The house 12 volt power on my coach is controlled ON/OFF with the salesman switch at the front door. Turn the switch Off and not 12 volt power. I have a relay in my passenger side rear electrical bay that shuts the power off.

It is located near my house disconnect switch, I can follow the wires and ultimately it goes to the relay.



Do you have any wiring diagrams for your coach?

No diagrams that are readable.

[jacwjames]

The picture you posted last looks like my preheat panel for my engine. It does have a breaker on it that supplies power to the chassis side of the coach in the front distribution panel BUT has nothing to do with the house panel. The Windsor and Sceptor are very similar but I have a 2002 coach. I have lots on information so maybe we can get the problem solved.



You should joint Monacoers.org, they have a great parts list and extensive file section. Here is a download for a 2003 Sceptor

https://www.monacoers.org/files/file...eptor-windsor/


You coach is similar to mine, but every Monaco is different but here is a parts diagram showing my rear passenger side electrical bays. In the picture that has the house and chassis battery disconnects the Item #5 is the house solenoid that turns on the power to the 12 volt fuse panel in the bedroom on my coach. The solenoid is controlled by a switch next to the passenger side seat on the front. Very easy to hit by mistake, I've done it many times.

There is also a circuit breaker Item #7 that is in line to the front domestic distribution panel which is for anything powered in the front drivers side electrical bay designated as "House" in the fuse panel.

[bdmckenna]

Originally Posted by jacwjames

The picture you posted last looks like my preheat panel for my engine. It does have a breaker on it that supplies power to the chassis side of the coach in the front distribution panel BUT has nothing to do with the house panel. The Windsor and Sceptor are very similar but I have a 2002 coach. I have lots on information so maybe we can get the problem solved.



You should joint Monacoers.org, they have a great parts list and extensive file section. Here is a download for a 2003 Sceptor

https://www.monacoers.org/files/file...eptor-windsor/


You coach is similar to mine, but every Monaco is different but here is a parts diagram showing my rear passenger side electrical bays. In the picture that has the house and chassis battery disconnects the Item #5 is the house solenoid that turns on the power to the 12 volt fuse panel in the bedroom on my coach. The solenoid is controlled by a switch next to the passenger side seat on the front. Very easy to hit by mistake, I've done it many times.

There is also a circuit breaker Item #7 that is in line to the front domestic distribution panel which is for anything powered in the front drivers side electrical bay designated as "House" in the fuse panel.

Thank you for the information!

[wamcneil]

Originally Posted by bdmckenna

I just removed the Trace 2000W inverter/charger and replaced it with a 3000W Aims pure sign inverter/charger. My question is does anyone know what wires are what for the auto start low voltage for the Quiet Diesel 7500?

2003 HR Sceptor PBD (built on a Friday)

Attachment 377898

Does this help?

[shootist]

Originally Posted by wamcneil

Does this help?

Attachment 378080

He found the problem, bad battery ground. Who knows when it went bad, just showed up when the big ground cable on the trace inverter was no longer used.

[bdmckenna]

Originally Posted by wamcneil

Does this help?

Attachment 378080

Yes. That helps me get the auto Gen start configured.