12
EDEM
SPLIT-TYPE ROOM AIR CONDITIONER
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.
Based on the position of the wall hole relative to the mounting
plate, choose the side from which the piping will exit the unit.
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.
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2
3
4
5
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Use scissors to cut down the length of the 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 Checks and enable you to check for dents
If existing connective piping is already embedded 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.
Based on the position of the wall hole relative to the mounting
plate, determine the necessary angle of your piping.
Grip the refrigerant piping at the base of the bend.
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.
Be extremely 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.
CAUTION
Summary of Contents for EDEM
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