Pipe Connection; Arrangement Of The Drain Hose; Wall Sealing And Pipe Fastening - Whirlpool AMD 302 User Manual

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.
DIAMETER OF PIPE
6.35mm (1/4")
9.52mm (3/8")
12.7mm (1/2")
15.88mm (5/8")

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.
Angled
downward
• 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.
indoor unit
Downloaded from AC-Manual.com Manuals
Angled
downward
Water
Water
leak
leak
seal with putty
secure the connecting
pipe with clamp
evaporator
craft tube
TORQUE (N • m)
12.0-15.0
33.0-36.0
40.0-45.0
73.0-78.0
Standing
water
Water
leak
get rid off unwanted part
16
Dip hose
into water
50mm or less
above floor
Drain hose
Hose (ID 15cm)
PVC hard
clamp
screw