6 | Unit installation
Installer reference guide
30
FTXF20~42E5V1B + ATXF20~42E5V1B
Daikin room air conditioner
4P519439-19U – 2022.09
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.
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 Ø16mm. Do NOT forget to use a heat insulation tube on the indoor section
of the extension hose.
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 Ø13mm) directly to the drain hose as with embedded piping work, use
a field supplied drain socket (nominal Ø13mm).
a Drain hose supplied with the indoor unit
b Drain socket with nominal Ø13mm (field supply)
c Ridgid polyvinyl chloride pipe (field supply)