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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)
b
a
b
c
a
d
d
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
4
Install the insulation piece (drain pipe).
