Daikin FUD 20B Manuel D'installation page 8

Mounting
Ensure that the overhead supports are strong enough to hold
the unit's weight. Position hanger rods and check for alignment
with the unit. Check that hangers are secure and that the
base of fan-coil unit is level in the two horizontal directions,
taking into account the gradient recommended for drainage
flow as shown.
Check the gradient recommended for drainage flow as
follow.
500mm
300mm
* for free return of air
Provide clearance for servicing and optimal air flow as shown
in the diagram.
The indoor unit must be installed such that there is no short
circuit of cool discharge with air discharge.
Respect the installation clearance.
INSTALLATION OF THE INDOOR UNIT
10
300mm
500mm
300mm
FUD 30/40B (Horizontal)
800.0
FUD 30/40B (Vertical)
800.0
Horizontal installation
RETURN
SUPPLY
GAUGE COCK
Vertical installation
SUPPLY RISER
RETURN RISER
TEE JOINT
1-6
800.0
1000.0
All dimensions in mm
T
FAN COIL UNIT
T
T
FAN COIL UNIT
T
3-WAY MIXING VALVE