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Installation Procedure
CAUTION
•
Be sure to use C1220T-1/2H (Semi-hard) pipe for more than
Ø19.05 mm. If you use C1220T-O (Soft) pipe for Ø19.05 mm,
the pipe may burst open, which can result in an injury.
Make at least one round:
It will reduce noise and vibration
•
The appearance of the unit may be different from the
diagram depending on the model.
CAUTION
•
Cut the pipe outlet to the exact pipe size. In addition, remove
foreign substances and burres aroud the outlet.
•
with a hammer near the pipe outlet. Otherwise, it may cause
product damage such as warping of the cabinet.
•
After connecting the pipes with Pipe outlet, plug the
space around the pipes.
•
After connecting the pipes, proceed exactly as directed
in the guide to prevent interference with the internal
parts.
•
Tighten the nuts to the specified torques. If
overtightened, the nuts could be broken so refrigerant
may leak.
•
Protect or enclose refrigerant tubing to avoid
mechanical damage.
•
After installing pipes, block the unused knock hole
to prevent small animal from entering. However, the
radiant heat hole(A) should be able to intake air.
20 English
Step 7 Optional: Cutting and flaring the
pipes
1
2
3
4
Pipe outlet
Pipe
Outer diameter (D)
Make sure that you have the required tools available. (pipe
cutter, reamer, flaring tool, and pipe holder)
If you wish to shorten the pipes, cut it with a pipe cutter,
taking care to ensure that the cut edge remains at a 90°
angle with the side of the pipe. Refer to the illustrations
below for examples of edges cut correctly and incorrectly.
Pipe cutter
90°
90
Pipe
Oblique
To prevent any gas from leaking out, remove all burrs at
the cut edge of the pipe, using a reamer.
Slide a flare nut on to the pipe and modify the flare.
D
A
Flare
Depth (A)
ø6.35 mm
1.3mm
ø9.52 mm
1.8mm
ø12.70 mm
2.0mm
ø15.88 mm
2.2mm
ø19.05 mm
2.2mm
Rough
Burr
R 0.4 to 0.8 mm
D
L
Flare
Flare dimension (L)
8.7 to 9.1 mm
12.8 to 13.2 mm
16.2 to 16.6 mm
19.3 to 19.7 mm
23.6 to 24.0 mm
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