Piping Materials And Sizes; Branch Pipe - Toshiba RAV-SM562MUT-E Service Manual

6-8. Piping Materials and Sizes

Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40mg/10m or less in the amount of
oil stuck on inner walls of pipe and 0.8mm in pipe wall thickness for diameters for diameters 6.4, 9.5 and
12.7mm and 1.0mm, for diameter 15.9mm.
Never use pipes of thin wall thickness such as 0.7mm.
Pipe side

6-9. Branch Pipe

Now the refrigerant pipe is installed using branch pipes supplied as accessories.
• Bend and adjust the refrigerant piping so that the branch pipes and pipe after branching become horizontal.
• Fix the branch pipes onto a wall in a ceiling or onto a column.
• Provide a straight pipe longer than 500mm in length as the main piping of the branches.
OK
Horizontal
NO GOOG
Inclination
Model (RAV-SM or RAV-SP)
Gas side
Liquid side
Main piping
Branch piping
Main piping
Branch piping
OK
Horizontal
NO GOOG
Inclination
– 23 –
In parentheres ( ) are wall thickness
1102AT-E
Ø15.9 (1.0)
Ø12.7 (0.8)
Ø9.5 (0.8)
Ø6.4 (0.8)