12
THE INDOOR UNIT INSTALLATION
ENGLISH
Indoor unit drain piping
- Drain piping must have down-slope (1/50 to
1/100): be sure not to provide up-and-down
slope to prevent reversal flow.
- During drain piping connection, be careful
not to exert extra force on the drain port on
the indoor unit.
- Remove the rubber stopple before
connecting drain hose.
- Hook on the bracket after connecting the
drain hose as below.
Drain piping
- The drain hose should point downward for
easy drain flow.
- Do not make drain piping like the following.
- Be sure to execute heat insulation on the
drain piping.
Drain test
Use the following procedure to test the drain
pump operation:
- Set the air direction louvers up-and-down to
the position(horizontally) by hand.
- Pour a glass of water on the evaporator
using a kettle.
- Ensure the water flows through the drain
hose of the indoor unit without any leakage
and goes out the drain exit.
Drain hose
Bracket
Downward
slope
Do not raise
Accumulated
drain water
Air
Waving
Water
leakage
Water
leakage
Ditch
Less than
50 mm gap
Water
leakage
Tip of drain
hose dipped
in water
Heat insulation material: Polyethylene foam
with thickness more than 8 mm.
1,MFL70699801,영어 2018. 6. 27. 오후 4:07 페이지 12
