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AM140MNEPEH✴✴✴
AM220MNEPEH✴✴✴
AM280MNEPEH✴✴✴
Welding copper pipe
f Make sure that there is no moisture inside the pipe .
f
f Make sure that there is no foreign substance inside the pipe .
f
f Make sure that there is no leakage .
f
f Make sure to follow the instruction while welding the copper pipe .
f
Fill nitrogen
1 . Use nitrogen while welding the copper pipe, as shown in the figure .
2 . If nitrogen is not used while welding the copper pipe, oxidation may
be produced inside the pipe, causing damage to the compressor and
valve .
3 . Use pressure gage to adjust the filling speed and keep it within
0 . 0 5m
/h .
3
Pipe direction upon welding of copper pipe
Place the marked side downward or on the level position while welding the copper pipe .
Downward
• Avoid welding pipe upward .
NOTE
Liquid pipe
Ø9 . 5 2
Ø9 . 5 2
Ø9 . 5 2
Side
ENGLISH-15
Gas pipe
Ø15 . 8 8
Ø19 . 0 5
Ø22 . 2 2
Brazed part
Nitrogen
Pressure
gage
Upward
Description
Flaring Type
Gas pipe: Welded
Gas pipe: Welded
Wrap with belt
Stop valve
ø6 . 3 5 Copper pipe
Flow meter
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