4.lnstallation of unit
4. Piping and banding
1) Piping and banding
G) Band the power cables, the signal wires and the connecting
pipe.
(î)Adjust the positions for in-piping and out-piping according to
the wall-hole position. Determine the pipe outing style.
@The banded pipe should insert from the outdoor side through
the wall-hole to the indoor side. lt is must be carefully to do
the piping, without damaging the pipe and the thermal
insulation layer.
During the banding, do not pull the snake-shape pipe too hard.
a. During the pipe bending, eut off the needed irregularity on
the heat insulation sleeve in the bend point, and then
show up the pipe {band it with the bandage after
bending). The radius of the bend should be as big as
possible, to avoid reshaped or pressed bad.
b. Stretching the pipe, use the vinyl tape to fix 5 to 6
positions.
c. Under the occasion of laterally extract the pipe, it should
caver the heat insulation material.
d. lt should avoid banding the joints of connecting pipe, just
for the leakage check.
2) Connecting pipe
Connecting cable
Connecting piping
Bandage tape
Beni the pipe with the
thum b
The minimum radius 100 mm
Tear out 10cm-15cm of the thermal insulation sleeve in out-pipe and in-pipe of indoor unit, make it
convenient for pipe connecting. Firstly, connect the low-pressure pipe, and then the high-pressure pipe.
Press the tapered surface of the pipe to the connector vertically, twist the connectors to the bottom of
the boit, and then fix it tight with a torque wrench.
Outside diameter of
the cop per pipe(mm
Cl>6.3 or Cl>6
Cl>9. 52 or Cl>9
Cl> 12. 7 or Cl>12
Cl> 16
Cl> 19
5. lnstall the drainpipe
When delivery, the outfall is PVC pipe, when connecting, please
use the subsidiary of sealing materials and sleeve.
1) Be sure to take the heat insulation of drainpipe of the indoor unit,
if no heat insulation, it will have the condensate. The connecting
part of indoor unit also needs heat insulation.
2) Connecting the drainpipe, it should use the rigid PVC adhesive,
and make sure there is no water leakage phenomenon.
1
2
Tightening
torque N · cm
1570 ( 160kgf • cm)
2940 (300kgf · cm)
4900 (500kgf · cm)
7360 (750kgf · cm)
9720 (900kgf • cm)
Heat insulated
material
Table4.2
Reinforce tightening
torque N • cm
1960 (200kgf · cm)
3430 (350kgf · cm)
5390 (550kgf · cm)
7850 (800kgf · cm)
11860(1210kgf·cm
1.5.fl'r2m
Till down for
above 1/100
