HTW -FST3-O-160A9 Manual De Usuario E Instalacion página 31

Installation of indoor unit
2. Aim the pipe joint at the correspo-
nding bellmouth.
pipe joint
3. Pretightening the union nut with hand.
4. Adjust the torque force 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.
Step five: install drain hose
1. Connect the drain hose to the
outlet pipe of indoor unit.
2. Bind the joint with tape.
Step six: connect wire of indoor unit
1. Make the power connection wire go
through the cable-cross hole of
indoor unit and then pull it out.
union nut pipe
drain hose
outlet pipe
torque wrench
indoor pipe
Hex nut diameter
Φ 6
Φ 9.52
Φ 12
Φ 16
Φ 19
5. Wrap the indoor pipe and joint of
connection pipe with insulating pipe,
and then wrap it with tape.
outlet pipe
tape
Note:
●
Add insulating pipe in the indoor drain
hose in order to prevent condens-
ation.
power connection wire
29
open-end wrench
union nut
pipe
Tightening torque (N . m)
15~20
30~40
45~55
60~65
70~75
insulating pipe
drain hose
drain hose
insulating pipe
cable-cross hole