Prepare Refrigerant Piping; Connect Drain Hose - Carrier 42QHG009D8S Serie Installationshandbuch

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.
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.
● Remove the air filter and pour a small
amount of water into the drain pan to make
sure that water flows from the unit smoothly.
NOTE ON DRAIN HOSE
PLACEMENT
Make sure to arrange the drain hose
according to the following figures.
CORRECT
Make sure there are no kinks
or dent in drain hose to ensure
proper drainage.
NOT CORRECT
Kinks in the drain hose
will create water traps.
PLUG THE UNUSED DRAIN HOLE
To prevent unwanted leaks
you must plug the unused
drain hole with the rubber
plug provided.
NOT CORRECT
Kinks in the drain hose
will create water traps.
NOT CORRECT
Do not place the end of the
drain hose in water or in
containers that collect water.
This will prevent proper
drainage.
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