Daikin VRV II Series, Design, Installation & Testing Instructions, Page: 56 / 242

Installation Si39-303
50 General Information
Ceiling
Suspended Type
(FXHQ-M)
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.
(1) Rig drain piping
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For drain work, rig the pipes so that they drain reliably.
The drain pipe outlet direction can be chosen from the right rear, right, left rear, and left. Refer to
“REFRIGERANT PIPING WORK” for right rear and right direction, and refer to Fig. 20 for left rear and
left direction.
For left drain pipe outlet, remove the rubber plug and the insulation on the drain pipe connecting opening
on the left side of the unit and change the position to the right side.
Rear side (metal plate)
removable part
Left-facing drain piping
Left dressing board
removable part
Rear left-facing drain piping
Fig. 20
3PN01417-5K-1C
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Insert the rubber stopper securely, all the way to the base, in order to prevent water leakage.
The diameter of the drain pipe should be greater than or equal to the diameter of the connecting pipe.
(Vinyl tube; pipe size: 20 mm; outer dimension: 26 mm)
Keep the drain pipe short and sloping downwards at a gradient of at least 1/100 to prevent air pockets
from forming.
(Refer to Fig. 21)
Use the attached drain hose (1) and clamp (2).
Insert the drain hose into the drain socket, up to the gray tape.
(Refer to Fig. 22)
Tighten the clamp until the screw head is less than 4 mm from the hose. (Refer to Fig. 23)
(Be careful of the installation direction. Install so that the clamp metal does not contact the intake grill.)
Wrap the attached sealing pad (8) over the clamp and drain hose to insulate.
(Refer to Fig. 23)
No folding of drain hose inside the indoor unit. (Refer to Fig. 24)
(If there is slack in the drain hose, it may cause damage to the intake grill.)
Wrong
Fig. 24
Sealing
pad (8)
(attached)
Clamp metal (2)
(attached)
Sealing pad (8)
(attached)
Clamp metal (2)
(attached)
≤
4
≤
4
(Length : mm)
< Facing rear right or right > < Facing rear left or left >
Fig. 23
Taping area
(Gray)
Drain hose (1)
(attached)
Clamp metal (2) (attached)
Fig. 22
Tilt down
Do not lift
(When drain hose is connected)
Make sure there
is no slack
Make sure it is
not in the water
Good
Wrong
Fig. 21