Daikin FXSQ-TAVJU Series - Page 66

Installation Manual EDUS391777-F17
11 FXSQ-TAVJU
3P184443-13Z
11
English
< Caution to be taken when carrying out upward
drain piping (Refer to Fig. 16) >
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(675 mm). Since the drain pump mounted on this
indoor unit is a high head type, from the characteristic
point of view, the higher the drain riser the lower the
draining noise.
Therefore, the drain riser of 11-13/16 in. (300 mm) or
higher is recommended.
r For upward drain piping, keep the horizontal piping
distance of 11-13/16 in. (300 mm) or less between the
drain socket root to the drain riser.
Ceiling slab
11-13/16 in.
(300 mm)
or less
40-60 in.
(1-1.5 m)
Support
Metal clamp (1)
(accessory)
Drain hose (2)
(accessory)
Upward drain piping
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Adjustable
(26-9/16 in. (675 mm) or less)
33-7/16 in. (850 mm or less)
Drain hose (2)
(accessory)
Level or upward
inclination
Keep the drain hose level or make a slight up-grade so
that air may not stagnate in the drain hose.
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the drain pump stops and generate abnormal sound.
Fig. 16
CAUTION
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force, do not bend nor twist it.
It may cause water leakage.
r
As for drain piping connection, do not connect the drain
hose directly to a sewage that gives off ammonia odor.
(The ammonia in the sewage may go through the drain
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unit.)
r In case of centralized drain piping, carry out piping work
according to the procedure shown in the fol lowing
Fig. 17 .
Make a downward inclination of 1/100
or more to avoid stagnation of air.
If water stagnates in the drain
piping, it may cause clogging of
drain piping.
0-26-9/16 in. (0-675 mm)
Centralized drain piping
Fig. 17
r As for the size of centralized drain piping, select the
size that meets the capacity of indoor units to be con-
nected. (Refer to the technical document.)
r
Positioning the upward drain piping at an angle may
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r While replacing with new indoor unit, use the attached
new drain hose (2) and the metal clamp (1).
If an old drain hose or a metal clamp is used, it may
cause water leakage.