Sharp WH-A55 Service Manual page 6

2.2 Removing the unit cover.
Turn the temperature knob to "OFF" position and remove the screw underneath the unit.
Open the cover by lifting from the bottom.
Screw
2.3 Mounting the unit to the wall.
Drill two 6 millimeters holes in the wall with approximately 25 millimeters in depth.
Install wall anchors into the holes.
Screw the top wall anchors, leave screw length around 8-10 millimeters and hang the unit on the screw
and hang the unit on the screw then marked the position in order to drill another 2 holes at the bottom,
drill the holes and install the rest of wall anchors then fasten all of 4 screws.
2.4 Assemble the cover with the heater.
Make sure that the temperature knob at "OFF" position.
Push unit cover on to body unit until they are locked.
Tighten screws to attach the cover with the heater and place the temperature knob to the same place.
25 mm.
Push on at the top
Temperature knob
Push off the body
Fig. 8
Fig. 9
Screw
6
Fig. 10
Fig. 11