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5 Unit installation
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.
5.3.4
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.
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
a
Drain hose supplied with the indoor unit
b
Heat insulation tube (field supply)
c
Extension drain hose
▪ Ridgid polyvinyl chloride pipe. When connecting a ridgid
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).
Installation manual
8
b
c
a
b
a
Drain hose supplied with the indoor unit
b
Drain socket with nominal Ø13 mm (field supply)
c
Ridgid 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.
mm
To connect the piping on right side, right-back, or
right-bottom
INFORMATION
The factory default is right-side piping. For left-side piping,
remove the piping from the right side and install it on the
left side.
1 Attach the drain hose with adhesive vinyl tape to the bottom of
the refrigerant pipes.
2 Wrap the drain hose and the refrigerant pipes together using
insulation tape.
A
C
a b
B
A
Right-side piping
B
Right-bottom piping
C
Right-back piping
a
Remove the pipe port cover here for right side piping
b
Remove the pipe port cover here for right-bottom piping
To connect the piping on left side, left-back, or left-
bottom
INFORMATION
The factory default is right-side piping. For left-side piping,
remove the piping from the right side and install it on the
left side.
1 Remove the insulation fixing screw on the right side and
remove the drain hose.
2 Remove the drain plug on the left side and attach it to the right
side.
NOTICE
Do NOT apply lubricating oil (refrigerant oil) to the drain
plug when inserting it. The drain plug may deteriorate and
cause drain leakage from the plug.
3 Insert the drain hose on the left side and do not forget to tighten
it with the fixing screw; otherwise water leakage may occur.
c
CTXF20~35C5V1B
Daikin room air conditioners
3P519299-13V – 2020.08
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