Daikin FWW Series Technical Manual page 15

Application Information
Indoor Installation
Model: FWW-L
The indoor unit must be installed in such a way so as to prevent short circuit of the cool discharged air with
the hot return air. Please follow the installation clearance shown in the figure. Do not place the indoor unit
where there could be direct sunlight shining on it. Also, this location must be suitable for piping and drainage,
and be away from doors or windows.
Air Purging
To prevent pump damage, the fan coil unit should not be energized until the coil and all water lines have
been purged of air.
The Air Vent located inside the casing. Removed the casing and connect hose to the air vent while doing
purging.
Ensure there is no water droplets go into the control box during purging process.
The water piping can be routed to the unit in a number of ways (left or right from the back of the unit), by
using the cut-out holes on the casing of the unit (see figure). Bend the pipes carefully to the required position
in order to align it with the holes. For the side and bottom, hold the bottom of the piping and then position it to
the required direction (see figure). The condensation drain hose can be taped to the pipes.
Air flow
(Indoor)
min. 50
Required space
(Space for
maintenance)
Right-side, right-back or right-bottom piping
Right-side piping
Remove pipe port cover here
for right-side piping
Right-bottom
piping
Remove pipe port cover here
for right-bottom piping
Left-side, left-back or left-bottom piping
Remove pipe port cover here
for left-bottom piping
Left-bottom piping
min. 50
(Space for
maintenance)
All dimensions are in mm
Right-back piping
Bind coolant pipe
and drain hose
together with
insulating tape.
Remove pipe port
cover here for
left-side piping
Left-side piping
Left-back piping
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