4. Wrap the indoor pipe and joint of con-
    nection pipe with insulating pipe, and 
    then wrap it with tape.
Step six: install drain hose
Installation of indoor unit
torque wrench
open-end 
wrench
indoor pipe
pipe
union nut
Hex nut diameter Tightening torque (N
.
m)
Φ 6
Φ 9.52
Φ 12
Φ 16
Φ 19
30~40
45~55
60~65
70~75
15~20
insulating pipe
1. Connect the drain hose to the outlet pipe of
    indoor unit.
2. Bind the joint with tape.
outlet
pipe
drain hose
Note:
● Add insulating pipe in the indoor 
   drain hose in order to prevent 
   condensation.
● The plastic expansion particles are 
   not provided.
1. Open the panel, remove the screw 
    on the wiring cover and then take
    down the cover.
wiring cover
screw
pane
Step seven: connect wire of indoor unit