Western Airconditioning SCVH12A-A1NA I, User And Installation Manual, Page: 13 / 27

11
Installation of the Unit
(2). Do not bend the pipes in an angle more than 90°.
(3). When pipes are repeatedly bent or stretched, the material will harden, making it difficult
to bend or stretch them any more. Do not bend or stretch the pipes more than three
times.
(4). When bending the pipe, do not bend it as is. The pipe will be collapsed. In this case, cut
the heat insulating pipe with a sharp cutter as shown in Fig.13, and bend it after exposing
the pipe. After bending the pipe as you want, be sure to put the heat insulating pipe back
on the pipe, and secure it with tape.
3. Connecting the Pipe at the Indoor Unit Side
Fig.13
Pipe
Cutter
Cutt line
Heat insulating pipe
CAUTION!
CAUTION!
● To prevent breaking of the pipe, avoid sharp bends. Bend the pipe with a radius of
curvature of 150 mm or over.
● If the pipe is bent repeatedly at the same place, it will break.
● Be sure to apply the pipe against the port on the indoor unit correctly. If the centering is
improper, the flare nut cannot be tightened smoothly. If the flare nut is forced to turn, the
threads will be damaged.
● Do not remove the flare nut until the connection pipe is to be connected so as to prevent
dust and impurities from coming into the pipe system.
Detach the caps and plugs from the pipes.
CAUTION!
Hold the torque wrench at its grip, keeping it in the right angle with the pipe as shown in
Fig.14, in order to tighten the flare nut correctly.
Centering the pipe against port on the indoor unit, turn the flare nut with your hand.