12 Unit installation
Installation and operation manual
14
FXHQ-A
VRV system air conditioner
3P668115-3E – 2022.11
To open the indoor unit
▪
Remove the suction grille.
Slide the fixing knobs to the back (2
for class 32, 3 for class 63~100), open the suction grille wide and
hold the rear knob. Pull the suction grille to the front to remove it.
b
a
a
Fixing knob
b
Suction grille
a
a
Rear knob
▪
Remove the decoration side covers (right, left)
. Remove the
fixing screw from both side covers, pull the decoration panel to the
front and remove the accessories.
b
c
a
a
Accessories
b
Fixing screw for side covers
c
Decoration side cover
To mount the indoor unit
1
Open the knockout hole at the wiring inlet at the rear or the top
of the unit, and install the resin bushing (accessory).
a
a
b
c
a
Resin bushing (accessory)
b
Knockout hole (for leading in from the top)
c
Knockout hole (for leading in from the rear)
2
Remove the hanger bracket. Loosen the 2 hanger bracket
installation bolts (M8) on both sides (total 4 places) within
10 mm. Remove the fixing screw (M5) from the rear hanger
bracket and pull the hanger bracket backward in the direction of
the arrow in order to remove it.
a
c
b
b
b
d
c
10 mm
a
Hanger bracket fixing screw (M5)
b
Hanger bracket installation bolt (M8)
c
Hanger bracket
d
Indoor unit
CAUTION
Do NOT remove the (milky white) tape from the exterior of
the indoor unit. Removing the tape may cause an electric
shock or a fire.
3
Fix
the
hanger
bracket
to
the
suspension
bolts.
"12.2.1 Guidelines when installing the indoor unit"
4
Lift up the indoor unit and slide it to the back. Fix the hanger
bracket installation bolt (M8) for temporary hanging. Do NOT
hold the unit by the reinforcing plate.
b
b
a
c
d
a
Hanger bracket
b
Hanger bracket installation bolt (M8)
c
Hanger bracket fixing screw (M5)
d
Reinforcing plate
5
Install the hanger bracket fixing screws (M5) on both sides back
(2 screws in total).
6
Fully tighten all hanger bracket installation bolts (M8) (4 screws
in total).
7
Make sure the unit is level. Refer to
12.2.2
Guidelines when installing the drain
piping
Make sure condensation water can be evacuated properly. This
involves:
▪ General guidelines
▪ Connecting the drain piping to the indoor unit
▪ Checking for water leaks
General guidelines
▪
Pipe length.
Keep drain piping as short as possible.
▪
Pipe size.
Keep the pipe size equal to or greater than that of the
connecting pipe (vinyl pipe of 20 mm nominal diameter and
26 mm outer diameter).
