Daikin FTXF-C - 6.4 Drainage and Leak Checks

6 | Unit installation
Installer reference guide
30
FTXF20~42C5V1B + ATXF20~42C5V1B
Daikin room air conditioner
4P519439-9J – 2021.06
▪ 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
▪ 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).
a b c
Ø18
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.
≥50
mm