Installation
SiE33-003
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-407C 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
φ
38.1 and
φ
44.5,
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
Si33-003.book Page 20 Monday, June 25, 2001 9:06 AM
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