Baumatic BTWM4 Instruction Manual page 32

If, however, you want to have your door opening to the left, you
reverse the procedure as shown in the procedure for the door
opening to the right at bottom of page 29.
CAUTION–
Take note of the
Different pos-
itioning of the
left hand side
hinge lugs.
31
Now you have to fit
the anchoring lugs
for the door.
Please note that in
the case of
attaching the door
so that it opens to
the left, the top left
hand anchoring lug
is to be fitted into
the position shown
in the illustration to
the left (5B).