En-6
]1
4.4. Installing heat insulation
CAUTION
After checking for gas leaks (refer to the Installation Manual of the outdoor unit),
perform this section.
Install heat insulation around both the large (gas) and small (liquid) pipes. Failure to
do so may cause water leaks.
After checking for gas leaks, insulate by wrapping insulation around the 2 parts (Gas and
Liquid) of the indoor unit coupling, using the coupler heat insulation.
After installing the coupler heat insulation, wrap both ends with vinyl tape so that there is
no gap.
Secure both ends of the heat insulation material using Cable tie (Large).
And
fi
nally
fi
x connection pipe (Liquid) to connection pipe (Gas) by rolling vinyl tape over
coupler heat insulation (Gas) and coupler heat insulation (Liquid).
Indoor unit
No gap
Coupler heat
insulator
(Accessories)
Coupler heat insulator
(Accessories)
Be sure to overlap the
insulation
Cable tie (Large)
(Accessories)
Cable tie (Large)
(Accessories)
Gas pipe Liquid pipe
Coupler heat
insulation
No gap
Insulation (pipe)
(Accessories)
No gap
Small pipe
Silencer pipe
CAUTION
There should be no gaps between the insulation and the unit.
5. INSTALLING DRAIN HOSE
]
CAUTION
Install the drain hose in accordance with the instructions in this Installation Manual
and keep the area warm enough to prevent condensation. Problems with the piping
may lead to water leaks.
Use general hard polyvinyl chloride pipe and connect it with adhesive (polyvinyl chloride)
so that there is no leakage.
Always heat insulate the indoor side of the drain hose.
Use a drain pipe that matches the size of the drain hose.
• Do not perform a rise, trap and air bleeding.
• Provide a downward gradient (1/100 or more).
• Provide supporters when long pipes are installed.
• Use an insulation material as needed, to prevent the pipes from freezing.
• Install the pipes in a way that allows for the removal of the control box.
O.D.
Drain pipe
32 mm (VP25)
When using the drain port on the left side of the unit, remove the drain cap and install it to
the right side drain port.
(Only when suspended from the ceiling)
Drain cap
Unit
INSTALL THE DRAIN HOSE
Working procedure
1) Install the attached drain hose to the drain port of the body. Install the hose band from
the top of the hose within the graphic display area. Secure
fi
rmly with the hose band.
2) Use vinyl adhesive agent to glue the drain piping (PVC pipe VP25) which is prepared
on site or piping socket. (Apply color adhesive agent evenly until the gauge line and
seal)
3) Check the drainage.
4) Install the heat insulation.
5) Use the attached heat insulation to insulate the drain port and band parts of the body.
Top view
Drain hose
(Accessories)
10 to 15 mm
Hose Band
(Accessories)
Soft PVC side
Ensure there is no space
Drain pan
Side view
Applying
area of
adhesive
Hard PVC side
Joint pipe
(Field supply)
Drain pipe (VP25)
(Field supply)
4 mm or less
Wrap the Drain hose insulation around the drain hose connection.
Top view
Drain pan
Drain hose
100mm
Drain hose insulation
(Accessories)
Hose opening view
Wind the attached heat insulation
around the hose band. Make sure the
alignment is on top.
A. Floor console type
Be sure to arrange the drain hose so that it is leveled lower than the drain hose connect-
ing port of the indoor unit.
Drain hose
Good
Prohibited
Prohibited
Arrange the drain
hose lower than
this portion.
CAUTION
Do not install the unit so that the drain hose side is too high. Height A should be less
than 5 mm.
Drain hose
Prohibited
Prohibited
9367701100-01_IM.indb Sec1:6
9367701100-01_IM.indb Sec1:6
2012-7-12 14:01:33
2012-7-12 14:01:33
