Operation Manual

Note:
1. The power wire and signal wire between the indoor/outdoor units must be connected one by one as per
corresponding number on the wiring terminal board.
2. The terminal positions of R1 and R2 must be connected with signal wire. They can't connect with the power in
any case; otherwise, there will be failure.
3. If the signal wire has to be bought separately, choose electric wire above 0.75mm.
Flaring the pipe end
Cut the pipe using a pipe cutter
Remove burrs at the tip of the pipe cut
Insert a flare nut into the pipe and modify flare.
Outer diameter (mm)
A (mm)
Copper Pipe
Oblique
Roughness
Burr
Reamer
Clamp
Burr
Clamp
Installation of refrigerant pipe
1 Direction of distribution pipes led out
( can be led out from four directions)
The refrigerant pipe shall be installed under the cover
of distribution pipe so that it is convenient for
installation and removal.
Connect assembly pipe to the appropriate valve on the indoor unit and
outdoor unit and tighten the flare nut(as fig.1).
Screw down the nut of connecting pipe with wrench(the torque as
follow diagram )
1.The number of bent position of the pipe in the indoor unit should not exceed 10.
2.The number of bent position of the pipe in the indoor unit and the outdoor unit should
not exceed 15.
3. The radius of bent position should more than 10cm..
NOTICE
This screw shall be removed when multi-units of
outdoor machines are installed side by side.
Stop valve
Bent circle
Radius 100-150mm
Cover of
Distribution pipe
Removing direction of
maintenance board
2 Remove the maintenance board and pipe
cover (there are two screws respectively)
3 Don't flatten the copper pipe while rebuild
the elbow pipes. (the circle radium is 100 to
150 mm)
Refrigerant pipe with heat
insulation cover
Maintenance board
Rear pipe
Cover of refrigerant pipe
Right refrigerant pipe
(knocker out)
Under refrigerant pipe
Removing direction of
maintenance board
Front refrigerant pipe
(knocker out)