Daikin Perfera CVXM20A3V1B Installer's Reference Manual page 32

6 | Unit installation
To connect the drain piping to the indoor unit
Installer reference guide
32
▪ Drain hose. Drain hose (accessory) is 220 mm long and with 18 mm outer
diameter on the connecting side.
▪ Extension hose. Use rigid polyvinyl chloride pipe (field supply) with 20 mm
nominal diameter as extension hose. When connecting an extension hose, use a
polyvinyl adhesive agent for glueing.
▪ Condensation. Take measures against condensation. Insulate the complete drain
piping in the building.
NOTICE
Incorrect connection of the drain hose might cause leaks, and damage the
installation space and surroundings.
1 Push the drain hose (accessory) as far as possible over the drain socket and fix
it with 1 screw (accessory).
a
b
c
a Drain pan
b Drain socket
c Drain hose (accessory)
d Screw (accessory)
2 Check for water leaks (see
3 Insulate the indoor drain socket and drain hose with ≥10 mm insulation
material to prevent condensation.
4 Connect the drain piping to the drain hose. Insert the drain hose ≥50 mm, so it
will not be pulled out of the drain pipe.
1×
d
"To check for water leaks" [
4
33]).
CVXM20A + FVXM25~50A
Split system air conditioners
4P625991-1C – 2021.09