22-EN
21-EN
– 11 –
Connecting drain pipe
Insert
fl
exible drain hose into the drain pipe of main unit as far as it will go. Fix it with hose band.
REQUIREMENT
Mount the
fl
exible drain hose using the hose band without using adhesive.
Hose band
Drain pipe
Flexible drain hose
Flexible drain hose
20 mm or less
Indoor unit
Hose band
10 mm
10 to 12 mm
Drain up
When install the drain pump kit (TCB-DP40DPE) of optional accessory, read the Installation Manual supplied to a
drain pump kit.
Check the draining
Check if the water can
fl
ow out properly during the test run. Also, check if no water leakage from the piping
connection port.
REQUIREMENT
y
Conduct the drain test even in the heating season.
y
If it is before the duct work, pour water into the drain pan through the air outlet.
y
If it is after the duct work, remove the access panel and pour water, then conduct the drain check.
Access plate
Pour into the drain pan
Heat insulating process
y
As shown in the
fi
gure, cover the
fl
exible hose and hose band with the attached heat insulator up to the bottom
of the indoor unit tightly.
y
Cover the drain pipe tightly with a heat insulator procured locally so that it overlaps with the attached heat
insulator of the drain connecting section.
Wrap the attached heat insulator tightly from
the surface of the indoor unit.
Heat insulator of the drain
connecting section
(accessory)
Heat insulator
(locally procured)
Indoor unit
Connecting method of the duct
Duct: Insulation material
(locally procured)
Connect a duct to the
outside of the
fl
ange
Flange (locally procured)
Aluminum tape (locally procured)
Aluminum tape (locally procured)
Air intake side
Air discharge side
Under surface
Indoor unit
Flange
CAUTION
Incomplete heat insulation of the supply air
fl
ange and sealing may occur dewing resulted in falling of water drop.
