6 Installation
Installer reference guide
13
FTXA25~50(A)(B)2V1B(W)(S)(T)(B)
Daikin room air conditioner
4P518023-3F – 2019.10
e
Use tape measure as shown
f
Tabs for placing a spirit level
g
Unit center
h
Hole for embedded piping Ø65 mm
i
Value for tape measure
j
Position the end of tape measure at symbol " "
k
Drain hose
l
Liquid pipe
m
Gas pipe
6.3.3
To drill a wall hole
CAUTION
For walls containing a metal frame or a metal board, use a
wall embedded pipe and wall cover in the feed-through
hole to prevent possible heat, electrical shock, or fire.
NOTICE
Be sure to seal the gaps around the pipes with sealing
material (field supply), in order to prevent water leakage.
1
Bore a 65 mm large feed-through hole in the wall with a
downward slope towards the outside.
2
Insert a wall embedded pipe into the hole.
3
Insert a wall cover into the wall pipe.
Ø65
a b
c
a
Wall embedded pipe
b
Putty
c
Wall hole cover
4
After completing wiring, refrigerant piping and drain piping, do
NOT forget to seal the gap with putty.
6.3.4
To remove the pipe port cover
To connect the piping on right-side, right-bottom, left-side or left-
bottom, the pipe port cover MUST be removed.
1
Cut off the pipe port cover from inside the front grille using a
coping saw.
2
Remove any burrs along the cut section using a half round
needle file.
NOTICE
Do NOT use nippers to remove the pipe port cover, as this
would damage the front grille.
6.3.5
To provide drainage
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.
If drain hose extension or embedded drain piping is
required, use appropriate parts that match the hose front end.
Ø16
Ø18
NOTICE
▪ Install the drain hose with a downward slope.
▪ Traps are NOT permitted.
▪ Do NOT put the end of the hose in water.
▪
Drain hose extension.
To extend the drain hose, use a field
supplied hose with inner Ø16 mm. Do NOT forget to use a heat
insulation tube on the indoor section of the extension hose.
a
a
b
c
Ø16
Ø16
a
Drain hose supplied with the indoor unit
b
Heat insulation tube (field supply)
c
Extension drain hose
▪
Rigid polyvinyl chloride pipe.
When connecting a rigid polyvinyl
chloride pipe (nominal Ø13 mm) directly to the drain hose as with
embedded piping work, use a field supplied drain socket (nominal
Ø13 mm).
a
b
c
Ø18
a
Drain hose supplied with the indoor unit
b
Drain socket with nominal Ø13 mm (field supply)
c
Rigid polyvinyl chloride pipe (field supply)
▪
Condensation.
Take measures against condensation. Insulate
the complete drain piping in the building.
1
Insert the drain hose in the drain pipe as shown in the following
figure, so it will NOT be pulled out of the drain pipe.
