Select the pipe with the appropriate diameter and thickness. Use the table below to select the most appropriate pipe:
Nominal diameter
Thickness mm Supply
Nominal diameter
Thickness mm Supply
mm Inches mm Inches
ø6.35 1/4 0.80 Roll ø25.4 1 1.00 Pipe
ø9.53 3/8 0.80 Roll ø28.6 1-1/8 1.00 Pipe
ø12.7 1/2 0.80 Roll ø31.75 1-1/4 1.10 Pipe
ø15.88 5/8 1.00 Roll ø38.1 1-1/2 1.35 Pipe
ø19.05 3/4 1.00 Pipe ø41.3 1-5/8 1.45 Pipe
ø22.2 7/8 1.00 Pipe ø44.45 1-3/4 1.55 Pipe
Always use clean copper pipes with no signs of knocks or cracks. Make sure there is no dust or dampness on the inside.
Before you
install the pipes, clean the inside with oxygen-free nitrogen gas to eliminate any remains of dust or other
substances.
C A U T I O N
• Do not use hand saws, circular saws, abrasive grinders or other tools that generate shavings.
• Strictly follow national or local regulations regarding occupational health and safety.
• Wear
appropriate
means of protection during cutting or brazing operations and installation (gloves, eye
protection, etc).
On completing the installation of the refrigerant pipes -B-,
insulate them appropriately using suitable insulating
material -A- and seal the open space between the holes
made and the pipe, as shown in the figure.
3 Piping work and
refrigerant charge
31
SMGB0065 rev. 1 - 12/2010
3
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