LG THERMA V AHNW16606B0, Installation Manual, Page: 56 / 65

Piping and Wiring for Outdoor Unit
56 Air-to-Water Heat Pump
After pipes are connected and electric cables are wired, pipe forming and commissioning tests are yet to
be performed. Especially, careful attention is required while performing the test for any leakages. As
leakage of the refrigerant results in degrading the performance directly. Note that it is almost impossible
to detect a leakage point leaked point after all installation procedures are completed.
Pipe Forming
Cover the vacuum created by pipes by wrapping
the connecting cable and refrigerant pipe
(between the indoor unit and outdoor unit) with
thermal insulation material and securing it with
two kinds of vinyl tape.
1. Tape the refrigerant pipe, power cable and
connecting cable from below to the top.
2. Secure the taped pipe is along with the
exterior wall. Invent a trap to prevent water
entering the room and electrical part.
3. Secure the taped pipe along the exterior wall
using saddle or its equivalent.
Drain hose
(not used)
Vinyl tape(narrow)
Pipe
Wrap with
vinyl tape(wide)
Taping Procedure
1. Tape the pipes, connecting cable and power cable from below to above. If the direction of the
tape is from top to below, rain drops might enter the pipes or cables.
2. Secure the taped pipe along the exterior wall using saddle or it's equivalent.
3. Create a trap is required to prevent water from entering into the electrical parts.
• Trap is required to prevent water from entering
into electrical parts.
Taping
Drain hose
(not used)
Refrigerat
Pipes
Connecting
cable
Power Cable
Plastic Plastic
band
band
Plastic
band
Seal a small Seal a small
opening around
opening around
the pipings with
the pipings with
gum type sealer.
gum type sealer.
Seal a small
opening around
the pipings with
gum type sealant.
Trap
Seal a small opening
around the pipings
with gum type sealer.
Trap
Plastic
band
Seal a small
opening around
the pipings with
gum type sealer.
Trap Trap Trap
Seal a small opening Seal a small opening
around the pipings
around the pipings
with gum type sealer.
with gum type sealer.
Seal a small opening
around the pipings
with gum type sealant.
Finalizing