8
Installation Procedure
English
Ins
tallation Pr
oc
edur
e
two nuts.
CAUTION
• Piping must be laid and connected inside the ceiling
when suspending the unit. If the ceiling is already
constructed, lay the piping into position for connection
to the unit before placing the unit inside the ceiling.
9
Screw the nuts to suspend the unit.
10
Adjust level of the unit by using measurement plate for
all 4 sides.
NOTE
• For proper drainage of condensate, give a 1° or less slant
to the side of the unit which will be connected with the
drain hose as shown in the figure. (The gap between the
lower end of the indoor unit and the ceiling should be
12 mm or less.)
Connection pipe
1° or less
Drain hose
Connection pipe
Drain hose
NOTE
• The gap between the lower end of the indoor unit and
the ceiling should be 1˚ (28 mm) or less.
1° or less
wall
Step 4 Purging inert gas from the
indoor unit
The indoor unit comes with nitrogen gas (inert gas)
charged at the factory. Therefore, all inert gas must be
purged before connecting the assembly piping.
Unscrew the pinch pipe at the end of each refrigerant
pipe.
AC036/048/054TNCDKC
Side cover
NOTE
• To prevent dirt or foreign objects from getting into the
pipes during installation, do not remove the pinch pipe
completely until you are ready to connect the piping.
• The designs and shape are subject to change according
to the model.
Step 5 Cutting and flaring the pipes
1
Make sure that you have the required tools available:
pipe cutter, reamer, flaring tool, and pipe holder.
2
If you wish to shorten the pipes, cut them with a pipe
cutter, ensuring that the cut edge remains at a 90° angle
to the side of the pipe. Refer to the illustrations below
for examples of edges cut correctly and incorrectly.
Pipe cutter
Pipe
90°
90°
Oblique
Rough
Burr
90°
3
To prevent any gas from leaking out, remove all burrs at
the cut edge of the pipe, using a reamer.
4
Slide a flare nut on to the pipe and modify the flare.
Summary of Contents for AC TNCDKC Series
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