Toshiba Carrier RAV-SP180UT-UL EN - Manual (Page 14)

Toshiba
– 13 –
4-way Air Discharge Cassette Type
Installation Manual
5
DRAIN PIPING WORK
CAUTION
• Following the Installation Manual, perform the
drain piping work so that water is properly
drained, and apply a heat insulation so as not to
cause a dew droping.
Inappropriate piping work may result in water
leakage in the room and wet of furniture.
„ Piping/Heat insulating material
Require the following materials for piping and heat
insulating at site.
„ Flexible hose
Use the attached flexible hose to adjust center
discrepancy of the hard vinyl chloride pipe or to adjust
the angle.
• Do not use the flexible hose as stretched, or do not
deform it more extent than that in the following figure.
• Be sure to fix the soft end of the flexible hose with the
attached hose band.
• Use the flexible hose on a horizontal level.
REQUIREMENT
• Be sure to perform heat insulation of the drain pipes
of the indoor unit.
• Never forget to perform heat insulation of the connecting
part with the indoor unit.
An incomplete heat insulation causes dew droping.
• Set the drain pipe with downward slope (1/100 or
more), and do not make swelling or trap on the
piping. It may cause an abnormal sound.
• For length of the traversing drain pipe, restrict to
65’7” (20 m) or less.
In case of a long pipe, provide support brackets with
interval of 4’11” - 6’7” (1.5 - 2 m) in order to prevent
waving.
• Set the collective piping as shown in the below
figure.
• Be sure not to apply force to the connecting part of
the drain pipe.
• The hard vinyl-chloride pipe cannot be directly
connected to the drain pipe connecting port of the
indoor unit.
For connection with the drain pipe connecting port,
be sure to use/fix the attached flexible hose with the
hose band, otherwise a damage or water leak is
caused on the drain pipe connecting port.
Piping
Hard vinyl chloride pipe VP25
(Outer dia. : Ø1.3" (32 mm))
Heat insulator
Foam polyethylene :
Thickness 0.4" (10 mm) or more
max
45°
Riser (Trap)
90° Bend
max
45°
OK NO GOOD
Support
bracket
1/100 or more
downward
Heat insulator
4’11” - 6’7” (1.5 - 2 m)
Arched
shape
Trap
NO
GOOD
VP25
As long as possible (3.9” (100 mm))
Downward slope
1/100 or more
VP30 or more
VP25 VP25
Drain pipe
connecting port
(Transparent)
Adhesive inhibited :
Use the attached flexible hose and hose band for
connecting the drain hose to the clear drain socket.
If applying the adhesive, socket will be damaged and
cause water leakage.
Align the attached hose band to
the end of hose, set the
tightening position upward, and
then tighten it.
Flexible hose
(Accessory)
Socket for VP25 vinyl chloride pipe
(To be local procure)
Drain pipe
connecting port
(Hard socket)
VP25 vinyl chloride pipe
(To be local procure)
Attached hose
band
Attached flexible hose
Soft socket
Hard socket
Socket for VP25
(To be local procure)
VP25 vinyl chloride
pipe (To be local
procure)
Indoor
unit
Indoor
unit
13-EN
+00EH99864701_00Ta.book Page 13 Tuesday, November 24, 2009 4:54 PM