16
Pipe Connection
• The number of bends in the pipe in the indoor unit must
not exceed 10.
• The number of bends in the pipe in the indoor unit and
outdoor unit taken together must not exceed 15.
• The radius of the bends must be more than 10cm.
• Snap the evaporator craft tube with pliers before
connecting. After expelling the air inside, use a wrench to
twist down the bottom nut of the connecting tube of the
evaporator.
• Use some airproof oil to cover the joint and the
expanding orifice of the connecting pipe.
• Align the centre of the joint with that of the expanding orifice and tighten the nut of the connecting pipe
using a wrench.
Attention:
Do not expel the air simply by loosening the nut since the air contained in the inside unit is pressurized. Do
not over tighten since there is a risk of damaging the expansion orifice.
Arrangement of the drain hose
• To drain the condensation water easily, the drain hose should be angled downwards.
The following 5 arrangement methods are incorrect.
• If you find the drain hose is not long enough to connect to the indoor
unit, you can extend it with the hoses in the accessory box.
• The section of the drain hose that passes through the wall must be lagged
with special adiabatic material.
Wall sealing and Pipe fastening
• Use putty to seal the hole in the wall.
• Use a clamp (pipe fastener) to secure the pipe in the specified position.
evaporator
craft tube
DIAMETER OF PIPE
TORQUE (N • m)
6.35mm (1/4")
12.0-15.0
9.52mm (3/8")
33.0-36.0
12.7mm (1/2")
40.0-45.0
15.88mm (5/8")
73.0-78.0
Angled
downward
Angled
downward
Water
leak
Water
leak
Standing
water
Water
leak
Dip hose
into water
50mm or less
above floor
Drain hose
Hose (ID 15cm)
PVC hard
indoor unit
seal with putty
secure the connecting
pipe with clamp
get rid off unwanted part
clamp
screw
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