Hi,
Unfortunately 'load support' on the Magnum does not keep the voltage from sagging while connected to shore power. DAMHIK. A work around may be to have a truly large amperage converter and use double conversion. When I tried this with the 40 amp pd the reverse polarity fuses blew immediately. I do not remember if I had the Magnum charger turned off. I may try again with the battery charger in the Magnum turned off, which might work. However, the Magnum 120 volt input was not connected, so I doubt there will be a difference.
It does help with surges so I can run the generator on eco and still safely run the roof air.
The remote is required for load support to be possible. With that in place it allows one to 'dial down' the input amperage to prevent blowing a 15 amp-shore power breaker.
The remote also allows current limiting of the battery charging module of the Magnum, so you can keep from exceeding the maximum safe charging rate for the bank.
The Magnum will charge at up to 125 amps on a 15 amp power supply.
There is a time delay built in to the Magnum so arcing does not happen when plugging into shore power.
The other issue is that some (but not all) gfi outlets do not 'like' the Magnum. Fortunately I have a manual plug system that allows me to wire around the Magnum defaulting back to using the PD converter for battery charging. I do have one only inverter powered outlet--but again that blew the reverse polarity fuses in the PD--so I have to switch off the PD if I want to use the inverter.
It may be that, with my 'new to me' battery bank, the double conversion problem will disappear.
mlts22 wrote:
If possible, I want to go with a Magnum Energy 3000 watt hybrid inverter. For a typical 30 amp motorhome, this will allow me to have the entire 120VAC system completely separate from the outside, getting pure sine wave power, and if there are sags on the shore power side, it won't fry the A/C.
