DC Inverter U-match Series Cassette Type Unit
24
cut surface so that the chips do not enter the pipe.
(3) Remove the cut-off valve of outdoor unit and take out the flare nut from the bag
of indoor unit accessories. Then fit the flare nut on the pipe and use a flaring tool
to flare the mouth of connection pipe.
(4) Check whether the flaring part has cracked. See the following figure.
3.2.3.3 Pipe Bending
(1) The pipes are shaped by your hands. Be careful not to collapse them.
(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.15, 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.
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