SiEN34-705
Installation
General Information
57
Slim Ceiling
Mounted Duct
Type (FXDQ)
Drain Piping Work
1. Install the drain piping.
!
Make sure the drain works properly.
!
The diameter of the drain piping should be greater than or equal to the diameter of the
connecting pipe (vinyl tube; pipe size: 20 mm; outer dimension: 26 mm).
(not including the riser)
!
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. 10)
Caution
Water accumulating in the drain piping can cause the drain to clog.
!
To keep the drain piping from sagging, space hanging bracket every 1 to 1.5 m.
!
Use the drain hose (2) and the metal clamp (1). Insert the drain hose (2) fully into the drain
pipe connection hole and firmly tighten the metal clamp (1) with the upper part of the tape on
the hose end. Tighten the metal clamp (1) until the screw head is less than 4 mm from the
hose.
(Refer to Fig. 11, 12)
!
The two areas below should be insulated because condensation may form there causing
water to leak.
!
Drain piping passing indoors
!
Drain pipe connection hole
In case of PVE, NAVE (with Drain Pump) Type
In case of PVET, NVET (without Drain Pump) Type
Drain pipe connection hole
Drain pipe connection hole
Refrigerant pipes
Service drain hole
(with rubber cap)
Connect the drain pipe after removing the rubber cap and
insulation tubing attached to the connection hole.
Refrigerant pipes
Central drain piping
(with a slope of at least 1/100)
100mm
or more
Fig. 10
