Drainpipe Installation - Midea MUE-18FNXD0 Installation Manual

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.
Cover the drainpipe with heat insulation to
1.
prevent condensation and leakage.
Attach the mouth of the drain hose to the
2.
unit' s outlet pipe. Sheath the mouth of the
hose and clip it rmly with a pipe clasp.
(Fig 6.1)
Drain hose
Pipe clasp
Drainpipe
connecting port
Fig. 6.1
NOTE ON DRAINPIPE INSTALLATION
• When using an extended drainpipe, tighten
the indoor connection with an additional
protection 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")
Insulation
6
1-1.5m
(39-59")
Downward slope
1/100
Fig. 6.2
Fig. 6.3
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