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▪ 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, ≤625 mm perpendicular
to the unit.
▪ 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
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 Wind the large sealing pad (= insulation) around the metal
clamp and drain hose, and fix it with tie wraps.
5 Connect the drain piping to the drain hose.
1
2~6
c
2
A
A
1
A'
A'
a
b
3
a
Drain pipe connection (attached to the unit)
b
Drain hose (accessory)
c
Metal clamp (accessory)
d
Large sealing pad (accessory)
e
Drain piping (field supply)
NOTICE
▪ Do NOT remove the drain pipe plug. Water might leak
out.
▪ Use the drain outlet only to discharge the water if the
drain pump is not used or before maintenance.
▪ Insert and remove the drain plug gently. Excessive
force may deform the drain socket of the drain pan.
Pull out the plug.
FNA25~60A2VEB(9)
Split system air conditioners
4P456958-1J – 2020.12
a
(mm)
leaks" [ 4 9]).
"To check for water
d
e
4
5
≤4 mm
A-A'
▪ Do NOT wiggle the plug up and down.
Push in the plug.
▪ Set the plug and push it in using a Phillips screwdriver.
a
Drain plug
b
Philips screwdriver
To check for water leaks
Gradually pour approximately 1 l of water in the drain pan, and
check for water leaks.
a
b
c
a
Air outlet
b
Portable pump
c
Bucket
d
Refrigerant pipes
e
Drain outlet
5.2
Connecting the refrigerant piping
DANGER: RISK OF BURNING/SCALDING
5.2.1
To connect the refrigerant piping to the
indoor unit
d
c
b
CAUTION
a
Install the refrigerant piping or components in a position
where they are unlikely to be exposed to any substance
which may corrode components containing refrigerant,
unless the components are constructed of materials that
are inherently resistant to corrosion or are suitably
protected against corrosion.
WARNING: FLAMMABLE MATERIAL
The R32 refrigerant (if applicable) in this unit is mildly
flammable. Refer to the outdoor unit specifications for the
type of refrigerant to be used.
▪ Pipe length. Keep refrigerant piping as short as possible.
▪ Flare connections. Connect refrigerant piping to the unit using
flare connections.
5 Installation
a
a
b
a
b
c
Installation manual
d
e
9
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