Mitsubishi Heavy Industries FDTC40ZHXV Technical Manual page 200

(j) Panel installation
1) Before installation
Follow installation manual carefully, and install the panel properly.
Check the following items.
Accessories
Accessories
Bolt
Strap
Note: Accessories are laid in the position removing the corner panel.
2) Checking the indoor unit installation position
Read this manual together with the air conditioner installation manual carefully.
Check if the opening size for the indoor unit is correct with the level gauge supplied in the indoor unit.
Check if the gap between the ceiling plane and the indoor unit is correct by inserting the level gauge into the air outlet port
of the indoor unit. (See below drawing)
Adjust the installation elevation if necessary.
Caution
If there is a height difference beyond the design limit between the
installation level of the indoor unit and the ceiling plane, the panel
may be subject to excessive stress during installation, it may cause
distortion and damage.
The installation level of the indoor unit can be adjusted finely from
the opening provided on the corner, even after panel is attached.
(Refer 6) Attaching the panel to for details.)
3) Removing the air return grille
a) Hold the stoppers on the air return grille (2 pieces) toward OPEN
direction, open the air return grille.
b) Remove the hooks of the air return grille from the decorativepanel
while it is in the open position.
4) Removing a corner panel
Pull the corner panel toward the direction indicated by the arrow
and remove it. (Same way for all four corner panels)
5) Orientation of the panel installation
Take note that there is an orientation to install the panel.
Attach the panel with the orientation shown on the right.
Align the "PIPE SIDE" mark (on the panel) with the refrigerant
pipes on the indoor unit.
Align the "DRAIN" mark (on the panel) with the drain pipe on the
indoor unit.
Caution
In case the orientation of the panel is not correct, it will lead to air
leakage and also it is not possible to connect the louver motor wiring.
4 pieces For panel installation
4 pieces For avoiding the corner panel from falling
orner panel
193
- -
ccessories holding position
eep the distance between 20~24mm.
Exceeding the range of distance
may cause failure etc.
Indoor Unit
4
+
20
0
Ceiling surface Ceiling opening
dimensions
Level gauge
(inserted into the unit)
<Removal>
ontrol box
Refrigerant pipes
topper
Drain pipe