Installation SiE33-102
20 General Information
c) Brazing
The Multi-System requires only copper/copper jointing and the jointing method is explained below.
The use of “hard solder” is essential.
The R-22 Plus Series uses a wide range of piping sizes. You should therefore be careful when selecting
the nozzle tip. If a small nozzle tip is used for brazing piping of large diameters such as φ38.1 and φ44.5,
brazing flow becomes poor.
Table 1: Correlation of nozzle tip and size of refrigeration piping
Note: The values in the table above are for type B torch (French).
6.35
9.53
12.7
15.9
19.1
22.2
25.4
31.8
38.1
44.5
Nozzle tip No.
1.6 2.4 3.2
(V0977)
Piping size
# 200 # 225 # 250 # 315 # 400 # 450 # 500
Brazing filler diameter φ
Si33-102.book Page 20 Tuesday, June 26, 2001 3:18 PM
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