Step 4: Prepare Refrigerant Piping - Mirage IVEH121A Owner's Manual

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 re-
quirements, 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 difficult to remove by hand.
CAUTION
Be extremly careful not to dent or damage the piping while bending them away from the unit.
Any dents in the piping will affect the unit's performance.
3. Use scissors to cut down the length of the
insulating sleeve to reveal about 6 in of the refrig-
erant piping. This serves two purposes:
• To facilitate the Refrigerant Piping
Connection process
• To facilitate Gas Leak Checks and
enable you to check for dents
4. If existing connective piping is already embed-
ded in the wall, proceed directly to the Connect
Drain Hose step. If there is no 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.
5. Based on the position of the wall hole relative
to the mounting plate, determine the necessary
angle of your piping.
6. Grip the refrigerant piping at the base of the
bend.
7. Slowly, with even pressure, bend the piping
towards the hole. DO NOT dent or damage the
piping during the process.
NOTE ON PIPING ANGLE
Refrigerant piping can exit the indoor unit from
four different angles:
• Left-hand side
• Left rear
• Right hand side
• Right rear
Refer to Fig. 3.4 for details.
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