Condensate Pipe Connection - LG Multi V Installation Manual

Note:
While making condensate pipe connections, be careful not to exert lateral force on the drain nipple. Internal
damage may occur.

Condensate Pipe Connection

The ceiling suspended and convertible indoor units use the gravity
drain method for removal of condensation. All units ship with a flex-
ible drain pipe kit. Note the following when connecting the conden-
sate pipe to the indoor unit.
• Indoor units DO NOT come with condensate pumps, check valves,
or a backflow prevention device. If these items are needed, they
are to be field supplied.
• All horizontal segments of condensate pipe should be sloped a
minimum of 1/4 inch per foot away from the indoor unit.
• Verify the unit is installed at a slight angle down toward the gravity
drain connection.
• Remove the rubber plug prior to connecting the condensate line to
the indoor unit.
• Use materials acceptable by local code.
1. Locate the condensate pipe extension and determine how you
will route it to its drainage area.
2. Route the pipe, leaving enough pipe near the indoor unit to form
the condensate trap and to connect to the indoor unit's conden-
sate pipe.
3. Connect the indoor unit's condensate pipe to the drain pipe
extension. Use appropriate materials to make the connection
watertight. Be sure the condensate pipe slopes downward
(Figure 16) after leaving the indoor unit.
4. Form the condensate pipe into a trap as shown in and use ap-
propriate attaching materials to ensure the pipe remains in this
shape.
5. Ensure the condensate drain pipe is not configured as shown in
Figure 17..
Water
leakage
CONDENSATION PIPE CONNECTION
Accumulated
Do not raise
drain water
Air
Water
Waving
leakage
Figure 17: Incorrect Condensate Pipe Installation
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Figure 16: Condensate Pipe Downward Slope
Tip of drain hose
dipped in water
Water
leakage
Ditch
Downward slope
Less than
50mm gap
19