Fujitsu ARXB07L, Installation Manual

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En-10
4.4. Installing heat insulation
Install the heat insulation material after performing a
refrigerant leak check (see the Installation Manual for the
outdoor unit for details).
4.4.1. COUPLER HEAT INSULATION
• Insulate by the coupler heat insulation (Accessories)
around the gas pipe and liquid pipe of indoor side.
• After installing the coupler heat insulation, wrap both end
with vinyl tape so that there is no gap.
• After af fi xing the coupler heat insulation, secure it with two
binders (large), one on each end of the insulation.
• Make sure that the binders overlap the heat insulation
pipe.
Coupler heat
insulation
(
Accessories
) Cover this portion with
heat insulation.
Binder (Large)
(
Accessories
)
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.
4.4.2. INSULATION (OUTLET)
When not using the air outlet duct, install the insulation
(outlet) on the air outlet
fl ange. (Fig. A)
1
Install the small pieces of insulation (outler/small) on the
left and right sides of the air outlet fl ange.
2
Install the large pieces of insulation (outler/large) on the
upper and lower sections of the air outlet fl ange.
Fig. A
View A
View B
1
2
2
1
A
0 mm
0 mm
0 mm
0 mm 0 mm
Insulation (Outlet)
(Small)
(Accessories)
Insulation (Outlet)
(Large)
(Accessories)
CAUTION
Failure to install the insulation may cause water leaks.
5. INSTALLING DRAIN PIPES
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
(Table A).
• 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.
Table A
O.D.
Drain pipe 32 mm(VP25)
• CEILING CONCEALED TYPE
Outlet air
fl ow
Arrange the drain hose
lower than this port.
Drain hose
Trap
OK
NO GOOD NO GOOD Rise
Air bleeding
Supporter
NO GOOD
1.5 to 2 m
OK
• FLOOR STANDING CONCEALED TYPE
NO GOOD OK NO GOOD
Rise
• Installation method of Joint hose
CAUTION
• Be sure to connect the pipes for drainage without leakage.
• To avoid condensation and dripping, always insulate the
indoor drain pipe.
(1) Be sure to use supplied Joint hose
1
and Band
2
(When using the Drain hole on the other side of the unit,
installation work is the same.)