Daikin RXQ18PY1 [73/355] Ceiling suspended cassette type fxuq ma

Daikin RXQ18PY1 [73/355] Ceiling suspended cassette type fxuq ma

SiEN34-705 Installation

General Information 67

Ceiling

Suspended

Cassette Type

(FXUQ-MA)

Drain Piping Work

1. Rig drain piping (Refer to Fig. 26)

As for drain work, perform piping in such a manner that water can be drained properly.

As for drain piping, the connection can be made from three different directions.

! Employ a pipe with either the same diameter or with the diameter larger (excluding the

raising section) than that of the connecting pipe (PVC pipe, nominal diameter 20 mm,

outside diameter 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. 27)

Caution Water pooling in the drainage piping can cause the drain to clog.

! To keep the drain hose from sagging, space hanging wires every 1 to 1.5 m.

(Refer to Fig. 26)

! Use only the included drain hose (1), (for rightward running drain hose) or elbow (10) (for

upward running drain hose) and clamp (2).

! Fit the drain hose (1) or elbow (10) over the drain pipe up to the neck and fasten tight with

the clamp (2).

! Insulate the clamp (2) and drain hose or elbow (10) with the included sealing pad (8).

(Refer to Fig. 28)

! Make sure that heat insulation work is executed on the following 2 spots to prevent any

possible water leakage due to dew condensation.

! Insulate the drain hose inside the building.

! Drain socket

Caution ! Do not twist or bend the drain hose (1), so that excessive force is not applied to it, as this

could cause leaks.

! If converging multiple drain piping, install according to the procedure shown below.

(Refer to Fig. 29)

Select converging drain piping whose gauge is suitable for the operating capacity of the unit.

1 - 1.5 m

VP20

VP20

500

Elbow (10)

Drain piping

(field supplied)

Drain hose (1) (For VP20 connection)

(Accessory)

Ceiling slab

Hanger

bracket

Large sealing pad (8) (accessory)

Clamp (2) (accessory)

Notes on upward running drain hose

Fig. 26

Rearward running piping

Min. 1/100 gradient

Rightward running drain hose

GOOD

WRONG

Fig. 27

(V2327)

Fig. 28

Short end

Long

end

Metal clamp (2) (accessory)

Metal clamp (2) (accessory)

Large sealing pad (8) (accessory)

Elbow (10) (accessory)

Drain hose (1)

(accessory)

Large sealing pad (8)

(accessory)

Upward

running

piping

Metal clamp (2)

(accessory)

Elbow (10)

(accessory)

Large sealing pad (8) (accessory)

Large

sealing pad (8)

(accessory)

Metal clamp (2)

(accessor

Metal clamp (2)

(accessory)

Tape

Drain hose (1)

(accessory)

≤4mm

≥100mm

T-joint converging drain piping

Fig. 29

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