Toshiba RAV-SM1603ATZ-E Piping Materials and Sizes, nTwin system, nTriple system, 50

6-9. Piping Materials and Sizes

nTwin system

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 and12.7mm and 1.0mm, for diameter 15.9mm. Never use pipes of thin wall thickness such as 0.7mm.

In parentheres ( ) are wall thickness

Pipe side

Main pipe

Gas side

Branch pipe

Main pipe

Liquid side

Branch pipe

Ø15.9 (1.0)

Ø12.7 (0.8)

Ø9.5 (0.8)

Ø6.4 (0.8)

nTriple system

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>			[Unit: mm]
	Outdoor unit
	Main pipe	Gas side	Ø15.9 (1.0)
		Liquid side	Ø9.5 (0.8)
∗ (	): Pipe wall thickness
<Between distributor and indoor unit>			[Unit: mm]
	Indoor unit		SM56 type
	Branch pipe	Gas side	Ø12.7 (0.8)
		Liquid side	Ø6.4 (0.8)
∗ (	): Pipe wall thickness

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