Daikin FCA71AV16, Installation Manual

Page: 15 / 67

• Use the attached drain hose (1) and Metal clamp (2).
• Insert the drain hose into the drain socket up to the base, and tighten the metal clamp securely within the
portion of a white tape of the hose-inserted tip. Tighten the metal clamp until the screw head is less than
4 mm from the hose.
• Wrap the attached sealing pad (10) over the Metal clamp and drain hose to insulate.
• Make sure that heat insulation work is executed on the following 2 spots to prevent any possible water
leakage due to dew condensation.
• Indoor drain pipe
• Drain socket
Tape (White)
Metal
clamp (2)
Fig.19
<PRECAUTIONS FOR DRAIN RAISING PIPING>
Metal
clamp (2)
Fig. 20
I
Large sealing pad (10)
(accessory)
:5:4mm
• Install the drain raising pipes at a height of less than 675 mm.
The drain pump of this unit has a high delivery flow rate. Therefore, the higher the drain raising height is, the
lower the sound of draining will be. For this reason, a minimum drain raising height of 300 mm is recommended.
• Install the drain raising pipes at a right angle to the indoor unit and no more than 300 mm from the unit.
,- - - - - - - Dr;n-h�s; (
1) - � �
Ceiling slab,,½
(accessory)
::;3
oomm
!._!_1-=-_!_1�.5'!!:m�������
Level or
� __
rr:e��-�=
t
tilted
-- slightly up
To prevent air bubbles in the
drain hose part, keep it level or
1
slightly tilted up. Any bubbles in I
the hose might cause the unit to
1
make noise due to backflow
when the drain pump stops.
"-- - - - - - - - - - - - - - J
NOTE -a-
Raisin section
Drain hose (accessory) (1)
Fig. 21
• To ensure no excessive pressure is applied to the included drain hose (1 ), do not bend or twist when
installing. (This may cause leakage.)
• If converging multiple drain pipes, install according to the procedure shown below.
E
r---------nE=�
E
LO
r-...
CD
I
0 L__+--- - ----'='=B'-1
Fig. 22
Central drain pipe
The drain pipe should have a
downward slope of at least 1 /1 00
to prevent air pockets from forming.
Water accumulating in the drain
piping can cause tne drain to clog.
• As for the size of central drain pipe, select the size that meet the capacity of indoor units to be connected.
(Refer to the technical document)
• At replacement with new indoor unit, use the attached new drain hose (1) and the metal clamp (2).
If an old drain hose or a metal clamp is uesd, it may cause water leakage.
-&
CAUTION-----------------------­
Drain piping connections
• Do not connect the drain piping directly to sewage pipes that smell of ammonia. The ammonia in the
sewage might enter the indoor unit through the drain pipes and corrode the heat exchanger.
14