Daikin FHA35AVEB98, Installation And Operation Manual

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12 Unit installation
Installation and operation manual
16
FHA-A(9)
Split system air conditioner
3P668115-4E – 2022.11
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 "12.2.1 Guidelines when
installing the indoor unit" [
4
14].
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).
▪ Slope. Make sure the drain piping slopes down (at least 1/100) to
prevent air from being trapped in the piping. Use hanging bars as
shown.
1~1.5 m
a
a Hanging bar
Allowed
Not allowed
▪ Condensation. Take measures against condensation. Insulate
the complete drain piping in the building.
▪ Combining drain pipes. You can combine drain pipes. Make
sure to use drain pipes and T-joints with the correct gauge for the
operating capacity of the units.
≥100
(mm)
a
a T-joint
To connect the drain piping to the indoor unit
NOTICE
Incorrect connection of the drain hose might cause leaks,
and damage the installation space and surroundings.
Drain piping can be connected from following directions:
a
b c
d
a Left drain piping
b Rear left drain piping
c Rear right drain piping
d Right drain piping
Rear left or left drain piping
1 Remove the protective grille (35+50 class: 7 screws, 60+71
class: 11 screws, 100+125+140 class: 10 screws).
a a
a a b
a Fixing screw for protective grille
b Protective grille
2 Remove the cap from the drain socket and remove the
insulation material from the left side and apply it to the right
side. Make sure the drain socket is fully pushed in to avoid
water leakage.
3 Remove the knockout part.
d c c a b e
a Rear left knockout part (sheet metal)
b Rear left drain piping
c Putty or insulation (field supply)
d Left drain piping
e Left knockout part on decoration side panel
Rear right drain piping
1 Remove the rear piping pipe port cover and cut out the holes for
piping. When cutting out the holes, make sure to avoid the knob
part of the cover.
a
b
a Rear right drain piping
b Rear piping pipe port cover
Right drain piping
1 Remove the reinforcing plate from the right side and put back
the screw in the original position on the indoor unit.
2 Remove the rectangular part from the decoration side panel
(when installing only drain piping on the right side, remove the
round part only).