Can the blessing card of Gongwangfu be hung on the west side of the house?

The guide of Gongwangfu said that if the whole family is safe, it should be placed on the north wall, preferably the living room wall. The elderly are required to be safely placed in the elderly room, and the children are required to study hard and put them in the children's room. Under no circumstances can you hang it on the Western Wall. The best position in the room is facing the door of the house, so-called straight to the point.