Guidelines When Installing The Drain Piping - Daikin VRV FXHA32AVEB8 Manual

16 | Unit installation

16.2.2 Guidelines when installing the drain piping

General guidelines
To connect the drain piping to the indoor unit
Installer and user reference guide
56
a Hanger bracket
b Hanger bracket installation bolt (M8)
c Hanger bracket fixing screw (M5)
d Reinforcing plate
5 Install the hanger bracket fixing screws (M5) on both sides back (2 screws in
total).
6 Fully tighten all hanger bracket installation bolts (M8) (4 screws in total).
7 Make sure the unit is level. Refer to
4
indoor unit" [ 52].
Make sure condensation water can be evacuated properly. This involves:
▪ General guidelines
▪ Connecting the drain piping to the indoor unit
▪ Checking for water leaks
▪ Pipe length. Keep drain piping as short as possible.
▪ Pipe size. Keep the pipe size equal to or greater than that of the connecting pipe
(vinyl pipe of 20 mm nominal diameter and 26 mm outer diameter).
▪ Slope. Make sure the drain piping slopes down (at least 1/100) to prevent air
from being trapped in the piping. Use hanging bars as shown.
a Hanging bar
Allowed
Not allowed
▪ Condensation. Take measures against condensation. Insulate the complete drain
piping in the building.
▪ Combining drain pipes. You can combine drain pipes. Make sure to use drain
pipes and T-joints with the correct gauge for the operating capacity of the units.
a T-joint
NOTICE
Incorrect connection of the drain hose might cause leaks, and damage the
installation space and surroundings.
Drain piping can be connected from following directions:
"16.2.1 Guidelines when installing the
a
1~1.5 m
(mm)
a
FXHA-A
VRV system air conditioner
4P673749-1A – 2022.11