... ,lack of water,phase fail,over hot,etc. 8)Digital auto-control,it has the function of manual,automatic and heating ... -keeping-cooling divide period to control. 9)Auto tracking frequency ,the power can infinitely variable control 10) ... body: 110KGTransformer: 78KG2.Feature:1)digital auto-control, it has the function of manual, semi=auto,full-auto, heating-keeping-cooling device period ...