Brazing The Pipe - Samsung RD040MHXCA Series Installation Manual

I U
NSTALLING THE
Installing the Refrigerant Pipe Work (Continued)
Brazing part
Nitrogen gas
Pressure regulator
Taping
18
E-
FJM RD040MHXCA_IM_00000_E_2.23.10.indd 18
NIT

Brazing the Pipe

Make sure that there is no moisture inside the pipe.

Make sure that there are no foreign materials and impurities in the pipe.

Replacement of Nitrogen gas
1 Use Nitrogen gas when brazing the pipes as shown in the picture.
1/4" copper pipe
2
If you do not use Nitrogen gas when brazing the pipes, oxide may form in the
pipe. It can cause the damage of the compressor and valves.
Valve stem
3 Adjust the flow rate of the replacement with a pressure regulator to maintain
0.05m
4 Perform brazing of the service valve after protecting the valve.
Installing the Y-Joint

Make certain of a minimum distance in straight line.
To outdoor unit

/h(1.77ft /h) or more.
3 3
Install the Y-joint 'horizontally' or 'vertically'.
< Install horizontally>
< Install vertically>
CAUTION
Rear
Socket
Pipe in use
Rear
on the site
Gas/Liquid side Y-joint
Front
Maintain ±15° start
from the horizontal line
Install the Y-joint within ±15° from
the horizontal or vertical line.
To other branching
pipe or indoor unit
Pipe in use
on the site
500mm
Main pipe
(19-11/16inch)
or more
2010-2-24 19:57:31