I’ve noticed when an old 900w hair dryer is running at full power the EasySolar runs quietly with a low level buzz. After a while the cooling fan will operate.
However when half power is selected the buzz from the EasySolar (transformers?) is most pronounced. I surmise the half power setting on the hair dryer is likely achieved by a thyristor chopping the current waveform in half.
Will any damage to the inverter ensue from this mode of operation? Are there implications for the longevity of the EasySolar if this type of load were to be sustained?
Reason tells me not to use the half power setting of the hair dryer. But it was only noticed by accident when temporarily depleting the battery charge while setting up the system.
My concern is, at a future date, I intend to use the inverter to power an air-source heat pump which has an ‘intelligent’ compressor mode to optimise efficiency.
My concern would be how the EasySolar’s inverter would handle the compressor (stated steady consumption 470 watt) if it provided an asymmetrical load when in ‘optimised’, reduced power consumption mode
Any advice please?