Friedrich FSHSR36A3A, Installation And Operation Manual

Page: 37 / 56

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Pipe expanding method
Note:
Improper pipe expanding is the main cause of refrigerant leakage. Please expand
the pipe according to the following steps:
A: Cut the pipe
the distance of indoor unit and
outdoor unit.
}X$$` $ $> X $?$r.
pipe
pipe cutter
leaning uneven burr
B: Remove the burrs
$<Q$X$=J> XJX!$!
prevent the burrs from getting into
the pipe.
downwards
pipe
shaper
C: Put on suitable insulating pipe
D: Put on the union nut
$<Q$X$ X$
connection pipe and outdoor valve;
install the union nut on the pipe.
union pipe
pipe
E: Expand the port
ˆƒ!X$> X$ƒ!$r.
Note:
–– J fferent according to the
diameter, please refer to the sheet
below:
expander
hard
mold
pipe
F: Inspection
}X$?@X$`! Z%$ƒ! _K
%X$$ J!Z=$< JX[$ƒ!X$
port again according to the steps
above.
X$$_X J$`!l
improper expanding
leaning
damaged
surface
crack uneven
thickness
smooth surface
Outer diameter
A( )
Max Min
! !+
! !
! !
! !
\Œ–^‹K‰
\Œ’–^‹ŠK‰
\Œ–^‹K
\‰Œ’–^‹‰K’