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16
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Unit installation
Installer and user reference guide
56
FXHA-A
VRV system air conditioner
4P673749-1A – 2022.11
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
"16.2.1 Guidelines when installing the
52].
16.2.2 Guidelines when installing the drain piping
Make sure condensation water can be evacuated properly. This involves:
▪
General guidelines
▪
Connecting the drain piping to the indoor unit
▪
Checking for water leaks
General guidelines
▪
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.
1~1.5 m
a
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.
≥100
(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.
Drain piping can be connected from following directions:
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