2
7
Installation of Indoor unit
Step 4: Outlet pipe
1
. The pipe can be led out in the
direction of right, near right or left.
2. When select leading out the pipe from
left or right, please cut off the
corresponding hole on the bottom case.
right
Aim the pipe joint at the corresponding bellmouth.
Pretightening the union nut with hand.
Adjust the torque by referring to the following
sheet. Place the open-end wrench on the pipe joint
and place the torque wrench on the union nut.
Tighten the union nut with torque wrench.
Wrap the indoor pipe and joint of connection pipe
with insulating pipe, and then wrap it with tape.
left
rear right
Hex nut diameter Tightening
torque (N.m )
15~20
30~40
45~55
60~65
70~75
6
9.52
12
16
19
Step 5: Connect the pipe of indoor unit
1
.
2
.
3
.
4
.
Note:
The corresponding moment wrench is needed to connect the piping. If other tools are
used, the pipe will be damaged due to improper exertion. The insulation material of the
piping should be as close as possible to the nut of the joint to ensure that the copper pipe
is not exposed.
According to the requirement of air conditioning standard
IEC 60335-2-40
, the
installation method of the model connecting pipe with refrigerant R
290
is the same
as that of the common connecting head, but once the joint is installed, it can not be
disassembled. If leakage occurs due to poor connection technology, the connection
must be replaced by a professional appointed or authorized by the manufacturer
and re-welded.
Lock joint with anti-removal cap
After the joint is locked,
put on the anti-removal cap
