Hi!
First time posting here…
I have a MultiPlus C 12/1600/70 which have a continuous output of 1300W.
I bought a Delonghi espresso machine with a rated draw of 1300W.
But:
When trying to use the espresso machine the Inverter is NOT happy!
It shuts off with overload messages, sounds very strange (like a rapid clicking sound) and the espresso machine sounds odd too.
My questions are:
Is this to be expected?
Would upgrading to eg. a Multiplus 12/3000 make it work flawlessly without problems?
Many thanks in advance for any help on this.
Cheers, Thomas
@hovmoller well that must be a bit dissapointing but yes, running the device that is the exact power consumption as the power rating of the inverter can be slightly problematic. You may like to just check the DC voltage on the input to the inverter when it is operating at peak load. I would just check that the voltage on the inverter DC input is the same as the terminal voltage of your batteries before proclaiming the design as a failure. When the load is at its peak for that unit you can’t afford to have any part of the installation letting you down. If the DC voltage is reducing you may consider using larger cables from the battery to the inverter to reduce the voltage drop and see how that goes.
I managed to update the firmware to v552 but that didn’t change anything.
Also measured voltage during trial but never went below 13.3V.
So I guess I can conclude that the 1600VA cannot cope with this load.
So the final question remains:
If I were to upgrade to the older Multiplus 12/3000VA. would I still deal with these induction load faults? Would a never Multiplus II be any better? (I can’t fit a multi II because of the length, hence why I would go for the older Multi 12/3000VA)
@hovmoller I would hate to give advice that may not be true but surely a 3000VA unit will handle the load ok. I am happy to stand corrected by anyone with greater knowledge but it would surprise me greatly if a coffee machine had much lagging power factor (inductive). I reason that because the major part of the power consumption is a heating element which is largly resistive.
The problem is that the 1300W of the espresso machine is an average rating and the actual power is going up and down quickly which causes the MultiPlus to switch off.