This is what I just found:
Economy: suitable for altitudes up to 1,500 m above sea level; altitude adjustment can be activated manually above 1,500 m with EasyStart Pro
Commercial: automatic altitude adjustment up to 3,000 m above sea level
So, It seems like the "normal" 12 V version can be manually adjusted above 1500 m through the easystart pro control unit. I think the commercial version with automatic correction for elevation operates only on 24V. So, I think it should not be an issue, also not for the 12V version, but I will talk to others as well.