Use and Care Manual

Fig. 4.9

4.3.2 Bending Pipes

(1). The pipes can be shaped by your hands. Be careful not to break or kink them.

Fig.4.10

(2). Do not bend the pipes in an angle more than 90°.

(3). When pipes are bent or stretched repeatedly,

it may damaged them. Do not bend or

stretch pipes more than three times. 

(4). To avoid damaging pipes during bending,

use sharp cutter as shown

in Fig 4.12 to cut the heat insulating pipe, and

then bend the pipe with a bending tool.. When the pipe is bent, be sure to put the heat

insulating pipe back on the pipe and then stick it with tape.

Fig.4.11

Pipe

Cutter

Cutt line

Pipe Insulation

pipe

① 

To prevent breaking of the pipe, avoid sharp bends. Bend the pipe with a radius of curvature

larger than 150mm( 6inch).

② 

If the pipe is bent repeatedly at the same place, it may become damaged or broken.

4.3.3 Connecting the Pipe at the Indoor Unit Side

Remove the caps and plugs from the pipes.

① 

Be sure to point the connection pipe at the stop valve correctly. If the centering is improper,

the flare nut cannot be tightened smoothly. If not turning smoothly, the threads will be damaged.

②

For preventing dust and impurities getting into the pipe system, do not remove the flare nut until

the connection pipe is connected.

When connecting the pipe to the unit or removing it from the unit, use both the

spanner and the torque wrench.(Fig.4.12)

U-match Series Cassette Type Unit