Piping and Wiring for Outdoor Unit
After pipes are connected and electric cables are wired, pipe forming and some tests are remained. Especially,
careful attention is required while proceeding leakage test because the leakage of the refrigerant effects degrade
of performance directly. Also, it is very hard to find leaked point after all installation procedures are finished.
Pipe Forming
Do pipe forming by wrapping the connecting
cable and refrigerant pipe (between the indoor
unit and outdoor unit) with thermal insulation ma-
terial and secure it with two kinds of vinyl tape.
1. Tape the refrigerant pipe, power cable and con-
necting cable from down to up.
2. Secure the taped pipe is along with the exterior
wall. Form a trap to prevent water entering the
room and electrical part.
3. Fix the taped pipe onto the wall by saddle or
equivalent.
Taping Procedure
1. Tape the pipes, connecting cable and power cable from down to up. If taping direction is up to
down, rain drop may be sinking into the pipes or cables.
2. Secure the taped pipe along the exterior wall using saddle or equivalent.
3. Trap is required to prevent water from entering into electrical parts.
• Trap is required to prevent water from entering
into electrical parts.
Taping
Drain hose
(not used)
Refrigerat
Pipes
Connecting
cable
Power Cable
PlasticPlastic
bandband
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.
TrapTrapTrap
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.
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