Daikin FXFQ09PVJU Installation Manual page 15

• Make sure that heat insulation work is executed on the following 2 spots to prevent any possible water leak-
age due to dew condensation.
• Indoor drain pipe
• Drain socket
Metal
clamp (2)
Tape (White)
Fig. 19
<PRECAUTIONS FOR DRAIN RAISING PIPING>
• Install the drain raising pipes at a height of less than 26-1/2in..
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 12in. is recommended.
• Install the drain raising pipes at a right angle to the indoor unit and no more than 11-3/4in. from the unit.
Drain hose (1)
(accessory)
To prevent air bubbles in the
drain hose part, keep it level or
slightly tilted up. Any bubbles in
the hose might cause the unit
to make noise due to backflow
when the drain pump stops.
NOTE
• To ensure no excessive pressure is applied to the included drain hose (1), do not bend or twist when install-
ing. (This may cause leakage.)
• If converging multiple drain pipes, install according to the procedure shown below.
Select converging drain pipes whose gauge is suitable for the operating capacity of the unit.
(2) After piping work is finished, check if drainage flows smoothly.
14
Drain hose (1)
Level or
tilted
slightly up
Metal clamp
(accessory) (2)
Fig. 22
Metal
Large sealing pad (10)
clamp (2)
(accessory)
(accessory)
≥
5/32in.
Fig. 20
Ceiling slab
≥
11-3/4in.
3-5ft.
Drain raising pipe
Raising section
Drain hose (accessory) (1)
Fig. 21
Central drain pipe
The drain pipe should have a downward
slope of at least 1/100 to prevent
air pockets from forming.
Water accumulating in the drain
piping can cause the drain to clog.
Hanger bracket
Adjustable
≥
( 26-1/2in.)
English