Bundling - LG LA090HYV3 Installation Manual

REFRIGERANT PIPING CONNECTIONS

Bundling

Bundling
If a conduit or piping set cover is not used on the connection from
the outdoor unit to the interior, bundle both separately insulated
refrigerant pipes, the drain hose, and outdoor unit to indoor unit
communication / connection (power) cable together with wide vinyl
tape.
1. Both piping must be fully and separately encased in insulation
material: Overlap the field installation piping insulation material
and the indoor unit piping insulation material. Verify that any
insulation material cutting lines are placed upward.
2. Bind together the two pipes, using vinyl tape. Make sure there
are no gaps during the binding.
3. Wrap the rear piping section with narrow vinyl tape.
4. Continue to wrap the indoor unit pipe as connected to the outdoor
connection pipe.
5. Using a wider vinyl tape, bundle the piping and drain hose to-
gether. Ensure that the drain hose is located at the bottom of the
bundle. Install the wider vinyl tape from the bottom up.
• Tape must be sufficient to cover the piping in order to fit into the
rear piping housing area at the back of the indoor unit.
• Always include insulation on all refrigerant and drain piping to
ensure condensate does not form and cause damage to walls,
floors, etc.
• Positioning the drain hose at the top of the bundle can cause con-
densate to overflow from the drain pan in the inside of the indoor
unit.
• For systems with wiring greater than 130 feet, see the "Commu-
nication / Connection (Power) Cable Specifications from Outdoor
Unit to Indoor Unit" in the Electrical System Installation section for
information.
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Figure 66: Bundling the Connection Components (From Outdoor Unit to
Indoor Unit).
Connection pipe
Vinyl tape (wide)
Connecting cable
Vinyl tape (narrow)
Figure 67: Cutaway of Proper Bundling.
Cut Line at Top
Figure 68: Cutaway of Piping and Cable Bundling.
Tape
Connection
Cable
Drain Hose
Piping
Indoor unit pipe
Wrap with vinyl tape
Pipe