Drain Piping Work - Carrier RAV-SP180UT-UL Installation Manual

4-way Air Discharge Cassette Type
5

DRAIN PIPING WORK

• 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.
Hard vinyl chloride pipe VP25
Piping
(Outer dia. : Ø1.3" (32 mm))
Foam polyethylene :
Heat insulator
Thickness 0.4" (10 mm) or more
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.
4'11" - 6'7" (1.5 - 2 m)
Heat insulator
13-EN
CAUTION
OK NO GOOD
max
45°
max
45°
Support
bracket
1/100 or more
downward
• 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.
Drain pipe
connecting port
(Hard socket)
Riser (Trap)
Adhesive inhibited :
Use the attached flexible hose and hose band for
connecting the drain hose to the clear drain socket.
90° Bend
If applying the adhesive, socket will be damaged and
cause water leakage.
– 13 –
Arched
shape
Trap
As long as possible (3.9" (100 mm))
VP25 VP25 VP25
VP30 or more
Downward slope
1/100 or more
Attached hose
VP25 vinyl chloride pipe
band
(To be local procure)
Attached flexible hose
Soft socket
Hard socket
Align the attached hose band to
the end of hose, set the
tightening position upward, and
Drain pipe
then tighten it.
connecting port
(Transparent)
Flexible hose
(Accessory)
Socket for VP25 vinyl chloride pipe
(To be local procure)
Installation Manual
NO
GOOD
Socket for VP25
(To be local procure)
VP25 vinyl chloride
pipe (To be local
procure)