DC Inverter U-match Series Duct Type Unit
25
Dimensions for the making of oil return bend are as follows:
A(inch)
B(mm)
C(mm)
Ф
3/8
≥20
≤150
Ф
1/2
≥26
≤150
Ф
5/8
≥33
≤150
3.2.3.2 Pipe Flaring
(1) Cut the connection pipe with a pipe cutter.
(2) The mouth of connection pipe should face downward. Remove burrs with
the 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 figure below)
3.2.3.3 Pipe Bending
(1) The pipes are shaped by your hands. Be careful not to collapse them.
