2-48
TC-12001
4-WAY CASSETTE
18
P5414946-rev.1
< In Case of not Using Adhesive due to
Relocating Indoor Unit in Future >
* Fully insert the drain hose to the end of the
drain pipe connection as shown in Fig. 6.2.
If not, or twisted, it will cause water leakage.
* Tighten the factory-supplied hose clamp at the
vinyl tape (white) of the drain hose (20mm from
Edge face of the drain hose) until approximately
28mm of the length from the top of the screw to
the bottom of hose clamp as shown in Fig. 6.3.
O
Use the factory-supplied drain hose and the hose
clamp. Others may cause water leakage.
O
Do not use the factory supplied drain hose to
bend or twist. It will cause water leakage.
O
Do not apply an excessive force to the drain pipe
connection. It could cause a damage.
(4) Drain Piping on-site Work
(a) Connect the factory-supplied drain hose
to the drain pipe connection using the
polyvinyl chloride adhesive.
(b)
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surface, applying the adhesive, inserting
the pipe, retaining and curing according to
the adhesive manufacturer information.
(c) Install the support part at the interval of
1mm to 1.5mm in order not to bend the
pipe.
(d) The drain pipe must be performed with a
down-slope pitch of 1/25 to 1/100.
(e) The drain hose must be performed with
a horizontal or upper-slope to prevent
the airpocket inner the drain hose. If the
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back to the unit and the abnormal noise
and leakage to the room will occur when
the unit operation is stopped.
(f) Lifting Drain Piping
Perform with the dimension as shown in
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drain pipe. The total drain piping length of
a+b+c shall be within 1,100mm.
(g) Installing Common Drain Piping
* Create a down-slope for the common
drain piping position from the highest
rising part for the drain piping.
* The pipe size of the common drain pipe
must be larger than VP30 (nominal
diameter 30mm, outer diameter 38mm)
according to the number of indoor units.
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Do not create a rising part for the drain piping
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to the unit and it may cause the water leakage
when the unit operation is stopped.
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Separate the drain piping from other pipings.
The drain hose must be performed with a horizontal or
upper-slope to prevent the airpocket inner the drain hose.
Drain Hose
Horizontal or Upper-Slope
1/25 to 1/100
Down-Slope
Min. 100mm
(higher as possible)
Common Drain Piping (Min. VP30)
Vinyl Chloride Pipe (VP25)
This drain pipe
shall be separating
from other pipes.
Drain Piping of Unit Side
(Down-Slope from Rising Part)
1/25 to 1/100
Down-Slope
Min. 100mm
(higher as possible)
Common Drain Piping (Min. VP30)
Vinyl Chloride Pipe (VP25)
This drain pipe
shall be separating
from other pipes.
Drain Piping of Unit Side
(Down-Slope from Rising Part)
Max. 850mm
a (Max. 300mm)
b
c
Hose Band
(Accessory)
1/25 to 1/100
Down-Slope
Drain Hose (Accessory)
1 to 1.5m
Support
Part
Ceiling
Rising Part
Upward Slope
Incorrect Installation of Drain Piping
