Daikin VRV Plus Series General Information Manual page 146

Si33-003.book Page 142 Monday, June 25, 2001 9:06 AM
Refrigerant Piping
6. Protection
against
Contamination
when Installing
Place
Pipes
Outdoor
Indoor
142
The pressure regulator for the nitrogen released when doing the brazing should be set to 0.02 MPa (0.2
kg/cm²) or less.
4
1
5
2
3
Take measures to prevent foreign materials like moisture and contamination from mixing into the
system.
Installation Period
More than a month
Less than a month
Regardless of the period
Great caution is needed when passing copper tubes through walls.
1. Refrigerant piping
2. Location to be brazed
6
3. Nitrogen
4. Taping
5. Manual valve
6. Regulator
7
Fig. 15
7. Nitrogen
(V0863)
Protection Method
Pinch the pipe
Pinch or tape the pipe
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SiE33-003
Installation Manual