@mrkjamesbb 3 idea's:
- Did you try to connect you airco at the AC2OUT?
- Keep the Multi on, so for the peak is can 'assist' (and maybe programm an alarm via Asistanst for when the shore power realy is lost)
- You could allso programm assistants for switching on a certain load.
It's likely gagging on the aircon 'start spike' because you've removed the ability of it's own inverter to cover it. It will honour it's own passthrough limit, and won't tolerate the spike.
Try leaving it turned just 'on', the functionality will be the same, and that spike will be covered by it's own inverter, right up to it's passthrough limit plus it's own inverter spike capability.
If losing shore power isn’t a concern, the MP in the “On” setting will assist sagging shore power to keep everything happy. It’s likely that other high inrush loads, maybe other ACs, are causing the shore power to sag outside acceptable voltage for your MP. The factory setting will accept anything from 94-143 volts, so it sagging (or surging!) outside that range might damage your AC, so it might be a blessing in disguise.
There is also a WeakAC setting for badly distorted incoming voltage. I have not messed with that, but it might be worth reading up on. Also, check to make sure the factory ranges haven’t been narrowed by whoever set the device up initially.
Factory settings are in Section 5. Configuration on page 17 of the online manual.
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