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Refrigerant Piping
SiE33-003
142
Installation Manual
The pressure regulator for the nitrogen released when doing the brazing should be set to 0.02 MPa (0.2
kg/cm
²
) or less.
6. Protection
against
Contamination
when Installing
Pipes
Take measures to prevent foreign materials like moisture and contamination from mixing into the
system.
Great caution is needed when passing copper tubes through walls.
1. Refrigerant piping
2. Location to be brazed
3. Nitrogen
4. Taping
5. Manual valve
6. Regulator
7. Nitrogen
1
2
4
5
6
3
7
Fig. 15
(V0863)
Place
Installation Period
Protection Method
Outdoor
More than a month
Pinch the pipe
Less than a month
Pinch or tape the pipe
Indoor
Regardless of the period
Si33-003.book Page 142 Monday, June 25, 2001 9:06 AM
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