Daikin FXFQ20BVEB - Page 28

6 | Installation
Installer and user reference guide
28
FXFQ20~125BVEB
VRV system air conditioner
4P561452-1B – 2021.07
1~1.5 m
a
a Hanging bar
O Allowed
X Not allowed
▪ Rising piping. If necessary to make the slope possible, you can install rising
piping.
- Drain hose inclination: 0~75mm to avoid stress on the piping and to avoid air
bubbles.
- Rising piping: ≤300mm from the unit, ≤675mm perpendicular to the unit.
≤675
≤300
0~75
1000~1500
(mm)
ba
b c
a
dd
a Metal clamp (accessory)
b Drain hose (accessory)
c Rising drain piping (vinyl pipe of 25mm nominal diameter and 32mm outer
diameter) (field supply)
d Hanging bars (field supply)
▪ 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 a correct gauge for the operating capacity of the units.
≥100
≤675
(mm)
a
a T-joint
To connect the drain piping to the indoor unit
NOTICE
Incorrect connection of the drain hose might cause leaks, and damage the
installation space and surroundings.
1 Push the drain hose as far as possible over the drain pipe connection.
2 Tighten the metal clamp until the screw head is less than 4 mm from the
metal clamp part.
3 Check for water leaks (see "To check for water leaks"[429]).
4 Install the insulation piece (drain pipe).