Daikin FXZQ-MVJU9 Engineering Data page 38

Installation
<PRECAUTIONS FOR DRAIN RAISING PIPING>
Install the drain raising pipes at a height of less than 21-7/16 in.
is, the lower the sound of draining will be. For this reason, a minimum drain raising height of 11-3/4 in.
is recommended.
Install the drain raising pipes at a right angle to the indoor unit and no more than 11-3/4 in. from the
unit.
To prevent air bubbles in the
drain hose, keep it level or
slightly tilted up. Any bubbles in
the hose might cause the unit
when the drain pump stops.
NOTE
hose when installing as it could cause leakage.
If converging multiple drain pipes, install according to the procedure shown below.
Select converging drain pipes with gauges is suitable for the operating capacity of the unit.
(2)
CAUTION
Drain piping connections
Do not connect the drain piping directly to sewage pipes that smell of ammonia. The ammonia in the
Keep in mind that it will become the cause of getting drain pipe blocked if water collects on drain pipe.
3P184443-12N
36
Fig. 19
Level or
tilted slightly
up
English
Ceiling slab
40-60 in.
Drain raising pipe
Raising section
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.
Fig. 22
EDUS391300-F9
Hanger bracket
Adjustable
( 21-7/16)
14
3P184443-12N
FXZQ-MVJU9