Prepare Refrigerant Piping; Connect Drain Hose - Samsung AR09TXHQBWKNEU User 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.
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. 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.
Knock-out Panel
3. 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.
NOTE ON PIPING ANGLE
Refrigerant piping can exit the indoor
unit from four different angles:Left-hand
side,Right-hand side, Left rear, Right rear.
CAUTION
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.
● Tighten the nuts to the specified torques.
If overtightened, the nuts could be broken
so refrigerant may leak.
CAUTION
● Keep the piping length at a minimum
to minimize the additional refrigerant
charge due to piping extension.
(Maximum allowable piping length: 15
m (for **09/12*******) and 30 m (for
**18/24*******))
● When connecting the pipes, make sure
that surrounding objects do not interfere
with or contact them to prevent refrigerant
leakage due to physical damage.
● Make sure that the spaces where the
refrigerant pipes are installed comply with
national gas regulations.
● Be sure to perform works such as
additional refrigerant charging and pipe
welding under the conditions of good
ventilation.
● Be sure to perform welding and piping
works for mechanical connections under
the conditions that the refrigerant does not
circulate.
● When reconnecting the pipes, make sure
to perform flared-jointing newly to prevent
refrigerant leakage.
● When working on the refrigerant pipes
and the flexible refrigerant connectors,
be careful that they are not damaged
physically by surrounding objects.
Step 5: Connect drain hose
By default, the drain hose is attached to the
lefthand side of unit (when you're facing the
back of the unit). However, it can also be
attached to the right-hand side. To ensure
proper drainage, attach the drain hose on the
same side that your refrigerant piping exits the
unit. Attach drain hose extension (purchased
separately) to the end of drain hose.
● Wrap the connection point firmly with
Teflon tape to ensure a good seal and to
prevent leaks.
● For the portion of the drain hose that will
remain indoors, wrap it with foam pipe
insulation to prevent condensation.
User manual/
Installation manual
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