Installation Manual

 Page 14 
Drainpipe Installation
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 1/50 to prevent water
from flowing back into the air conditioner.
• To prevent the pipe from sagging, space
hanging wires every 39-59”(1-1.5m).
• If the outlet of the drainpipe is higher than
the body’s pump joint, provide a lift pipe for
the exhaust outlet of the indoor unit. The
lift pipe must be installed no higher than
21.7” (55cm) from the ceiling board and
the distance between the unit and the lift
pipe must be less than 7.9” (20cm).
Incorrect installation could cause water to
flow back into the unit and flood.
• To prevent air bubbles, keep the drain hose
level or slightly tiled up (<3”
/ 75mm).
Fig. 6.3
The drainpipe is used to drain water away from
the unit. Improper installation may cause unit
and property damage.
CAUTION
• Insulate all piping to prevent condensation,
which could lead to water damage.
• If the drainpipe is bent or installed
incorrectly, water may leak and cause a
water-level switch malfunction.
• 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.
• DO NOT pull the drainpipe forcefully. This
could disconnect it.
NOTE ON PURCHASING PIPES
Installation requires a polyethylene tube
(exterior diameter = 1.5”, interior
diameter = 1.25”), which can be obtained at
your local hardware store or dealer.
Indoor Drainpipe Installation
Install the drainpipe as illustrated in Figure 6.2.
1.
2.
Drainpipe
connecting port
Drain hose
Pipe clasp
Insulation
Fig. 6.1
Drainpipe Installation
39-59”
<7.9”
)
”7.12
<
Fig. 6.2
Lean over 1/50
39-59”
Drainpipe installation for units with a pump
Lean over 1/50
Ceiling
Ceiling
3”
6
Cover the drainpipe with heat insulation to
prevent condensation and leakage.
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)
NOTE: When connecting multiple drainpipes,
install the pipes as shown in Fig 6.4.
20.8”
4”
Fig. 6.4