Drainpipe Installation
The drainpipe is used to drain water from the
unit. Improper installation may cause unit and
property damage.
CAUTION
• Insulate all piping to prevent condensation
and water damage.
• If the drainpipe is bent or installed incorrectly,
water may leak and cause a malfunction of
the water-level switch.
• In HEAT mode, the outdoor unit will discharge
water. Ensure that the drain hose is placed in
an appropriate area to avoid water damage
and slippage due to frozen drain water.
• DO NOT pull the drainpipe forcefully as this
could cause it to disconnect.
NOTE ON PURCHASING PIPES
This installation requires a polyethylene
tube (outside diameter = 3.7-3.9cm, inside
diameter = 3.2cm), which can be obtained
at your local hardware store or dealer.
Indoor Drainpipe Installation
Install the drainpipe as shown in Figure 6.2.
1. Cover the drainpipe with heat insulation to
prevent condensation and leakage.
2. Attach the mouth of the drain hose to the
unit's outlet pipe. Sheath the mouth of the
hose and clip it firmly with a pipe clasp.
(Fig 6.1)
Drain hose
Pipe clasp
Drainpipe
connecting port
Insulation
Fig. 6.1
NOTE ON DRAINPIPE INSTALLATION
• When using an extended drainpipe, tighten
the indoor connection with an additional pro-
tection tube to prevent it from pulling loose.
• The drainpipe should slope downward at a
gradient of at least 1 /100 to prevent water
from flowing back into the air conditioner.
• To prevent the pipe from sagging, space
hanging wires every 1 -1.5m (39-59").
• Incorrect installation could cause water to
flow back into the unit and flood it.
NOTE: When connecting multiple drainpipes,
install the pipes as shown in Fig 6.3.
≥10cm
(4")
6
1-1.5mm
(39-59")
Downward
Fig. 6.2
slope 1/100
Fig. 6.3
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