Piping Materials And Sizes - Toshiba RBC-TRP100E Installation Manual

Branch Kit 1:3

Piping materials and sizes

<RAV-SM1603AT(Z)(ZG)-E>
Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40 mg/10 m or
less in the amount of oil stuck on inner walls of pipe and 0.8 mm in pipe wall thickness for
diameters 6.4, 9.5 and 12.7 mm and 1.0 mm, for diameter 15.9 mm. Never use pipes of thin
wall thickness such as 0.7 mm.
Between outdoor unit and distributor
Main pipe
* ( ): Pipe wall thickness
Between distributor and indoor unit
Branch pipe
* ( ): Pipe wall thickness
<RAV-SM2244AT, SM2804AT series>
Use general copper pipes with a wall thickness of 0.8 mm for Ø6.4 mm, Ø9.5 mm, and
Ø12.7 mm, with a wall thickness of 1.0 mm for Ø15.9 mm, with a wall thickness of 1.2 mm
for Ø19.1 mm, and with a wall thickness of 1.0 mm for Ø28.6 mm (half hard).
Do not use any copper pipes with a wall thickness less than these thicknesses.
Between outdoor unit and distributor
Main pipe
* ( ): Pipe wall thickness
Between distributor and indoor unit
Branch pipe
* ( ): Pipe wall thickness
Outdoor unit
Gas side
Liquid side
Indoor unit
Gas side
Liquid side
Outdoor unit
Gas side
Liquid side
Indoor unit
Gas side
Liquid side
8
[Unit: mm]
Ø15.9 (1.0)
Ø9.5 (0.8)
[Unit: mm]
SM56 type
Ø12.7 (0.8)
Ø6.4 (0.8)
[Unit: mm]
Ø28.6 (half hard 1.0)
Ø12.7 (0.8)
[Unit: mm]
SM80 type
Ø15.9 (1.0)
Ø9.5 (0.8)
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