(5) Checking the Drainage and
forming the pipings
1) Checking the drainage
1. To remove the front panel from the indoor unit,
remove the front panel from the indoor unit cabinet.
■ Set the air direction louvers up-and-down to the posi-
tion(horizontally) by hand.
■
Remove the securing screws that retain the front panel.
Pull the lower left and right sides of the grille toward you
and lift it off. (9K Btu models: 2EA,12K Btu models: 3EA)
2. To check the drainage.
■ Pour a glass of water on the evaporator.
■ Ensure the water flows through the drain hose of the
indoor unit without any leakage and goes out the drain
exit.
3. Drain piping
■ The drain hose should point downward for easy drain
flow.
■ Do not make drain piping.
2) Form the piping
1. Form the piping by wrapping the connecting por-
tion of the indoor unit with insulation material and
secure it with two kinds of vinyl tapes.
■ If you want to connect an additional drain hose, the end
of the drain outlet should be routed above the ground.
Secure the drain hose appropriately.
2. In cases where the outdoor unit is installed below
the indoor unit perform the following.
■ Tape the piping, drain hose and connecting cable from
down to up.
■ Secure the tapped piping along the exterior wall using
saddle or equivalent
3. In cases where the Outdoor unit is installed above
the Indoor unit perform the following.
■ Tape the piping and connecting cable from down to up.
■ Secure the taped piping along the exterior wall. Form a
trap to prevent water entering the room.
■ Fix the piping onto the wall by saddle or equivalent.
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