I used an automatic transfer switch to avoid manually switching between power sources because Imma lazy SOB.
Same results, same "rabbit holing" until I finally found a solution. Same converter (PD4045KA), Go Power! TS-30 30 Amp Automatic Transfer Switch, 200 Ah LiFePO4 battery, 3 kW inverter.
The inverter and shore power are wired separately to the transfer switch; the PD4045KA's converter is also wired to the transfer switch, sharing the connection with shore power. Thus, the transfer switch controls battery charging when on shore power; otherwise, the battery is charged via solar charge controller + solar, and we avoid the nasty feedback loop.
The transfer switch controls energy to the RV, but in an automated fashion. Only shore power is plugged-in at the 30A TT-30 receptacle; the inverter is *always* connected, and the transfer switch monitors the power being fed through it and disconnects the inverter when shore power becomes active.
Hope this helps!
-Bob K.
Quote:
Originally Posted by BeGin
WELL THAT DIDN’T WORK lol.
As mentioned in my ‘solution’ above: I wired in a battery disconnect switch in place of the PD4045 OEM jumper (from BATTERY POS/BLK (+) to POS/DC DISC (+) ). All that did was disable DC output from power centre into my TT.
The solution that worked was simple and should have been obvious but I got rabbit holed by the ‘external DC disconnect switch’ reference on pg.2 of the above Guide ... but I did learn what the jumper does and was able to use the battery disconnect switch installed in the first failed attempt.
The solution that WORKED: First I replaced the jumper so all was stock again. Then I disconnected and pulled the battery POS (+) lead out the back of the PD4045 and wired it, via a terminal strip, to one terminal of the now installed battery disconnect switch. The other terminal of the battery disconnect switch was connected to the terminal the battery POS (+) lead was removed from ie. BATTERY POS/BLK (+). This effectively put the battery disconnect switch in the battery positive wire so it could be ‘opened’. Now I can plug in my shore power line directly into my inverter and not have a loop back to the batteries. Whilst concurrently charging the batteries via solar.
I used 8 AWG wire as it is rated for 50 amps and the PD4045 max output is 45 amps so no breaker was wired in.
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