• VRV
®
Systems • Indoor Units
15
• Indoor Units • CEILING MOUNTED CORNER CASSETTE • FXKQ-MAVE
11
Installation
11 - 1 Drainage instructions
Rig the drain pipe as shown below and take measures against
condensation. Improperly rigged piping could lead to leaks and
eventually wet furniture and belongings.
Install the drain pipes.
•
Keep piping as short as possible and slope it downwards so that
the air does not remain trapped inside the pipe.
•
The diameter of the drain pipe should be larger than or equal to
the diameter of the connecting pipe (Vinyl tube; pipe size: 25 mm;
outer dimension: 32 mm).
•
Use the attached drain hose and clamp metal. Insert the drain hose
into the drain socket, up to the white tape. Tighten the clamp until
the screw head is less than 4 mm from the hose.
•
Wrap the attached sealing pad over the clamp and drain hose to
insulate.
•
Insulate the drain hose inside the building.
•
Insulate the clamp and drain hose with the attached large sealing
pad. If the drain hose cannot be sufficiently set on a slope, execute
the drain raising piping. Secure a downward gradient of 1/100 or
more for the drain pipe. To accomplish this, mount supporting
brackets at an interval of 1 - 1.5 m.
Precautions when installing drain-up piping.
•
Make sure the drain-up piping is maximum 330 mm high. Install
the drain-up piping horizontally, and make sure it is not further
than 300 mm from the base of the drain socket.
•
Use the following outline if installing concentrated drain piping. If
converging multiple drain pipes, install according to the procedure
shown on the right.
Select converging drain pipes whose gauge is suitable for the operating capacity of the unit.
CAUTION
1
Installing the unit at an angle opposite to the drain piping might
cause leaks.
Clamp metal
Clamp metal
(attached)
Large sealing pad
(attached)
Tape (white)
< 4 mm
Drain hose
Ceiling slab
Clamp metal (attached)
Drain hose (attached)
Riser
< 300
< 500
170
1-1.5 m
Drain-up piping
Support bracket
Adjustable (< 330)
> 100 mm
T-joint converging drain pipes
