Installing Heat Insulation; Installing Drain Pipes - Fujitsu AIRSTAGE ABUA30TLAV Installation Manual

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4.4. Installing heat insulation

Install the heat insulation material after performing a refrigerant leak check (see the Instal-
lation Manual for the outdoor unit for details).
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 affi xing the coupler heat insulation, secure it with 2 cable ties, one on each end of
the insulation.
• Make sure that the Cable ties overlap the heat insulation pipe.
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).
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.
Coupler heat insulation (Large)
(Accessories)
Indoor unit
Indoor unit
Indoor unit
* When using an Auxiliary pipe (Accessories), make sure that 2 pieces of fasteners used
is insulated in the same way.

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.
• 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.
• Always heat insulate (5/16 in. (8 mm) or over thick) the indoor side of the drain pipe.
Drain pipe
GOOD
Arrange the drain pipe
lower than this portion.
GOOD
Supporter
En-7
CAUTION
Connection pipe (Gas)
Connection pipe (Small) (Liquid)
Coupler heat insulation (Small)
(Accessories)
Cable tie (Extra large)*
(Accessories)
No gap
Coupler heat insulation
Cable tie (Large)
(Accessories)
Connection pipe (Gas)
Connection pipe (Liquid)
Vinyl tape
Pipe size
Φ 3/4 in. (19 mm) [I.D.], Φ 1-1/16 in. (27 mm) [O.D.]
Drain pipe
60 to 78 in. (1.5 to 2 m)
PROHIBITED
Lifted up
(1) Install insulation for the drain pipe.
Assemble as described below.
Assemble Drain hose (Accessories) and Hose band (Accessories) to Drain port.
Soft PVC side
Drain pan
3/8 to 9/16 in.
(10 to 15 mm)
Drain hose
(Accessories)
Wrap the drain hose insulation around the drain hose connection.
Drain hose insulation
(Accessories)
Wave
Drain port
Hose band
Drain hose
(Accessories) (Accessories)
Ensure there is no space
Hose Band
(Accessories)
Soft PVC side
End in water