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Connection of drain hose at
indoor unit side
1. Insert the drain hose attached to the indoor unit into
the drain pipe connecting port of the indoor unit’s
and into the drain pipe connecting port of the drain
up kit’s drain pan.
In this time, insert the drain hose until it strikes on
the connecting port of the drain pipe.
2. Align the hose band attached to the indoor unit with
the end of pipe connecting port, and then tighten it
firmly.
3. Cut off (to 160 × 200) the thermal insulator (200 ×
200) for drain hose attached to the indoor unit.
Using it, lap the connecting section of drain pan and
drain hose without clearance, and then tighten it
with two banding bands attached to the indoor unit
so that thermal insulator does not open.
Connection of drain hose at
drain up kit side
1. Insert the drain hose attached to the drain up kit
into the connecting port of drain pipes at the upper
side of the drain up kit.
2. Align the hose band attached to the drain up kit with
the end of pipe connecting port, and then tighten it
firmly.
3. Fit the drain connecting thermal insulator attached
to the drain up kit to sheet metal at the upper side
of the drain up kit, and then lap it covering the drain
hose without clearance.
Attached drain hose
Indoor unit
drain pan
Check the soft
hose is pushed
in to the end of
drain pan.
Drain up kit drain pan
Align the attached hose bands with the end
of hose and then tighten it while turning the
knob to the side.
Lap insulator over the
connecting section of drain
pan and drain hose.
Drain hose
Banding
band
Hose band
Thermal insulator attached to indoor unit
(Cut to 160 × 200)
Lap the one side of
the attached thermal
insulator on the other
side at the upper side.
323
Drain hose
(Attached to drain up kit)
Thermal insulator for drain
connecting section
(Attached to drain up kit)
Drain pipe
connecting port
Fit the drain connecting thermal insulator to
sheet metal at the upper side of the drain up kit,
and then lap it without clearance.
600mm or less from the top face of indoor unit
Hard vinyl chloride
pipe VP-25
(Procured locally)
Thermal insulating pipe
(Attached to drain up kit)
Thermal insulator for drain
connecting section
(Attached to drain up kit)
Hose band
(Attached to drain up kit)
Drain hose
(Attached to drain up kit)
Fit the thermal insulating pipe
to sheet metal at the upper side
of the drain up kit, and then lap
it without clearance.
* When using the drain hose within 150mm or less from
the top face of the indoor unit, do not use an elbow but
connect the attached drain hose directly, which was
bent (with larger round as possible as you can).
4
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. 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.
Piping
Heat insulator
Hard vinyl chloride pipe VP25
(Outer dia. : Ø32mm)
Foam polyethylene :
Thickness 10mm or more
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 dewing.
• 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 20m or less.
In case of a long pipe, provide support brackets with interval of
1.5 to 2m in order to prevent waving.
• Set the collective piping as shown
in the right 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.
Adhesive inhibited :
Use the attached flexible hose and hose band for connecting the drain hose to the drain piping connecting part.
If applying the adhesive, socket will be damaged and cause water leakage.
5
THERMAL INSULATOR FOR CEILING PLATE
Adhere the ceiling thermal insulator attached to
the drain up kit to positions of the refrigerant
pipe and the drain pipe.
Connection of drain pipe
• Connect hard vinyl chloride pipe (procured locally) to
the attached drain hose which has been installed.
Drain pipe thermal
insulator pipe
Refrigerant pipe
Ceiling thermal insulator
(Attached to drain up kit)
Trap
Arched
shape
Support
bracket
1/100 or more
downward
Heat
insulator
1.5m to 2m
As long as possible (10cm)
VP30 or more
Downward slope
1/100 or more
VP25
VP25
VP25
Extended
ventilating pipe
TCB-DP22CE