DC Inverter U-match Series for R410A Unitary Split Air Conditioner
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(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 figure below).
3.2.2.3 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) If the pipe is repeatedly bent or extended, it will become hard and difficult to
be bent or extended. So do not bend or extend the pipe for more than 3
times.
(4) When bending the pipe, do not bend it
excessively, otherwise it will get
broken. As shown beside, use a sharp
cutter to cut the heat insulating pipe
and bend it after the pipe is exposed.
After bending, place the heat
insulating pipe back on the pipeline
and fix it with adhesive tape.
