What all can be removed when replacing Xantrex ProWatt SW with Victron Multiplex

[Teaney Hull 292]

What all can be removed when replacing Xantrex ProWatt SW with Victron Multiplex. 

I have a Mobile RV Repair guy coming Monday the 21st to put in the Victron Multiplex. 

In addition to the Xantrex ProWatt and the SW unit what else can be removed? 

Can the Transfer switch in the dinette seat basement go? 

Does the aluminum junction box, under the SW unit stay or go into the new MP?

Any and all suggestions are appreciated. 

Thanks

Gary

[jd1923]

1 hour ago, Teaney Hull 292 said:

What all can be removed when replacing Xantrex ProWatt SW with Victron Multiplex.

You will remove 3 components; the 2KW Xantrex inverter, the Xantrex PROwatt SW and the crazy junction box, full of wire nuts, OTT installs in this setup. We had the same setup. The Xantrex PROwatt SW (pictured below) is an Automatic Transfer Switch (ATS) that connects shore power when hooked-up and uses inverter power when not.

Inside the standard residential junction box (shown in your pic2) there should be pairs of white 14 AWG cables (they might be yellow #12 cables since your hull is newer than ours). One set of cables is the source wiring to your 110V outlets and microwave which must be rewired directly to the circuit breaker labeled "110 outlets - 15A." You will also remove and not reuse the short jumper cable currently connected to this breaker.

You recently purchased a new PD converter that you do not truly need once upgraded to the Victron which has a built-in charger which your old Xantrex did not have. I'm not sure what would happen when you connect to shore power with your new Victron in the ON position. As-is you would have two chargers running.

I disconnected the original PD converter that is internal to the power panel. I reused the breaker labeled "Converter / Battery Charger - 15A" to power our microwave circuit separately. We replaced our microwave with an Emeril Air Fryer and I did not want it on the same circuit with anything that may be plugged into an outlet (e.g. a blow dryer)! I left our PD converter where it was, so if the Victron was to fail I could open the panel, re wire the black wire (the hot) and the charger would then again work. I doubt I will ever use it but I did not want it on. You could do as I did, or remove it completely (return it if uninstalled) or merely trip the breaker so you do not have 2 chargers working in parallel. This could confuse the Victron charging algorithms and perhaps over-charge your new batteries.

The Progressive Industries Electrical Management System (EMS) is shown in your first picture. Your installer will need to reroute the output of the EMS to the 120VAC input to your new Victron and then wire the Victron output to the panel exactly where it is wired currently from the EMS. I used residential 10-2 cable for this, however there are some here who believe you must have stranded cable which is expensive. You'll need 12-15 ft of 10-2 cable either way.

Read my installation thread again and ask your installer to do so. He (/she) will have their own way but I did not start on mine until studying the good work Mike had done@rideadeuce and there are 1-2 other Oliver Forum members who also posted some insight. Best wishes, JD

 

[Teaney Hull 292]

JD, hope to see you at the Rally and have your Favorite Beverage waiting for you for all the help you have given me.

I’m Printing this out to give to the installer. My goal when I owned my 2 Radio Stations, was to know just enough when my Engineer told me something, I could give him a LOOK, and a question, to keep him on his toes. Will use this info to do the same with the installer.

Gary 

[katanapilot]

Question- do you have a front shore power outlet? If so, the transfer switch is probably wired to the two shore power outlets.  Mine is, so it remained installed with the Victron. 
 

There was a good bit of rewiring on the AC lines required when I replaced the 2kw Xantrex with the 3kw Victron MP2.  You can pass all the shore power through the Victron which was not possible with the Xantrex. 

[jd1923]

58 minutes ago, Teaney Hull 292 said:

JD, hope to see you at the Rally and have your Favorite Beverage waiting for you for all the help you have given me.

Sorry Gary, when y'all are at the OTT Annual National Rally, I will be working, teaching my PMP class during that particular week in Albuquerque NM! Maybe one year, I'll make it that far east. It's not on our short list however since we lived 10 years in VA and 4 in FL and 40 years in Chicagoland where almost every year we drove SE to Florida! There are so many travel opportunities that are new to us out west.

We made the Texas Rally last year and it was so great to meet so many Oliver owners! Can't make Texas this year either since I have 4 weeks off ending the week before that event.

When you travel with your new Oliver out west at some point, please come to Prescott. I have an RV parking spot for you and we can drink and break bread together! You're welcome! 😂

[Teaney Hull 292]

4 hours ago, katanapilot said:

Question- do you have a front shore power outlet? If so, the transfer switch is probably wired to the two shore power outlets.  Mine is, so it remained installed with the Victron. 
 

There was a good bit of rewiring on the AC lines required when I replaced the 2kw Xantrex with the 3kw Victron MP2.  You can pass all the shore power through the Victron which was not possible with the Xantrex. 

Yes, I have the front shore power outlet. So glad you told me this. Thanks. 

Good to know on the AC wiring. 

[Teaney Hull 292]

3 hours ago, jd1923 said:

Sorry Gary, when y'all are at the OTT Annual National Rally, I will be working, teaching my PMP class during that particular week in Albuquerque NM! Maybe one year, I'll make it that far east. It's not on our short list however since we lived 10 years in VA and 4 in FL and 40 years in Chicagoland where almost every year we drove SE to Florida! There are so many travel opportunities that are new to us out west.

We made the Texas Rally last year and it was so great to meet so many Oliver owners! Can't make Texas this year either since I have 4 weeks off ending the week before that event.

When you travel with your new Oliver out west at some point, please come to Prescott. I have an RV parking spot for you and we can drink and break bread together! You're welcome! 😂

JD, will fly into Flagstaff in May for a Grand Canyon Rafting trip. Had already booked the flights before we bought the trailer in Dec. 

We are driving down to Sedona on the 12th and 13th. That’s as close to Prescott until we head out West in 2026 with the Ollie. Thanks for the parking offer. Look forward to taking you up on that. 

Gary

[jd1923]

1 hour ago, Teaney Hull 292 said:

We are driving down to Sedona on the 12th and 13th.

I'm home working, leading virtual class 10AM - 2:30PM on May 12-13. You end up with some extra time, we are about 1 1/4 hours past Sedona with Jerome on the way (Hwy 89A south).