Airtel LTXN25UBV1B Mode D'emploi page 122

Step 4: Prepare refrigerant piping
The refrigerant piping is inside an insulating
sleeve attached to the back of the unit. You must
prepare the piping before passing it through the
hole in the wall. Refer to the Refrigerant Piping
Connection section of this manual for detailed
instructions on pipe flaring and flare torque
requirements, technique, etc.
1. Based on the position of the wall hole relative
to the mounting plate, choose the side from
which the piping will exit the unit.
2. If the wall hole is behind the unit, keep the
knock-out panel in place. If the wall hole is to
the side of the indoor unit, remove the plastic
knock-out panel from that side of the unit.
(See Fig. 3.3 ). This will create a slot through
which your piping can exit the unit. Use
needle nose pliers if the plastic panel is too
di cult to remove by hand.
Fig. 3.3
CAUTION
Be extremely careful not to dent or damage the piping while bending them away from the unit. Any
dents in the piping will a ect the unit' s performance.
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3. Use scissors to cut down the length of the
4. If existing connective piping is already
5. Based on the position of the wall hole
6. Grip the refrigerant piping at the base of the
7. Slowly, with even pressure, bend the piping
NOTE ON PIPING ANGLE
Refrigerant piping can exit the indoor unit from
four di erent angles:
Knock-out Panel
Refer to Fig. 3.4 for details.
Fig. 3.4
insulating sleeve to reveal about 15cm (6in)
of the refrigerant piping. This serves two
purposes:
• To facilitate the Refrigerant Piping
Connection process
• To facilitate Gas Leak Check s and enable
you to check for dents
embedded in the wall, proceed directly to
the Connect Drain Hose
embedded piping, connect the indoor unit' s
refrigerant piping to the connective piping
that will join the indoor and outdoor units.
Refer to the Refrigerant Piping Connection
section of this manual for detailed instructions.
relative to the mounting plate, determine the
necessary angle of your piping.
bend.
towards the hole. Do not dent or damage the
piping during the process.
• Left-hand side
• Left rear
• Right-hand side
• Right rear
step. If there is no