Western Airconditioning SCVH12A-A1NA I, User And Installation Manual, Page: 14 / 27

12
Installation of the Unit
When the flare nut is tightened properly by your hand, use a torque wrench to finally tighten it.
Holding spanner
Torque wrench
Fig.14
Fig.15
Table 3 Flare nut tightening torque
Pipe Diameter (Inch) 1/4˝ 3/8˝ 5/8˝ 1/2˝ 3/4˝ 7/8˝
Tightening Torque (N·m) 15-30 35-40 60-65 45-50 70-75 80-85
CAUTION!
Be sure to connect the gas pipe after connecting the liquid pipe completely.
Stick coupler heat insulation (large and small) to the place where connecting pipes.
Fig.16
4. Heat Insulation on the Pipe Joints (Indoor Side Only)