Panasonic Urban Multi MX1 Series Manual page 19

PACD011001G2 / PACD011004G3
c) Brazing
The Multi-System requires only copper/copper jointing and the jointing method is explained below.
Brazing
a) Brazing work should be carried out such that the final result is directed either downwards or sideways.
b) Liquid and gas pipe branches should always be dealt with in the specified way with attention being paid
c) It is standard working practice to use the nitrogen replacement method when brazing.
Important points
1. Every effort must be made to avoid fire. (Clean area where brazing is to be performed and make sure
2. Be careful of burns.
3. Make sure that the gap between the pipe and the joint is correct. (To prevent leaks)
4. Is the pipe adequately supported?
Copper pipe support spacing
Maximum gap (m)
Urban Multi Inverter "MX1" Series
The use of "hard solder" is essential.
An upward direction should be avoided wherever possible. (to prevent leakage)
to the direction of the fitting and its angle. (to prevent oil return or drift) For example see page 75.
that fire fighting equipment and water are ready to hand.)
As a rule the gaps between supports for horizontal piping (copper pipe) are as follows:
Nominal diameter
The copper pipe should not be secured directly by metal brackets.
(From HASS 107-1977)
20 or less 25~40
1.0 1.5
Installation 1
50
2.0
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