LG UM30F Installation Manual page 42

THE INDOOR UNIT INSTALLATION
42
[Wall Mounted]
To check the drainage
1
Pour a glass of water on the evaporator.
2
Ensure the water flows through the drain
hose of the indoor unit without any
leakage and goes out the drain exit.
* The feature can be changed according to
type of model.
Drain piping
1
The drain hose should point downward for
easy drain flow.
Connecting area
drain hose
Leakage
checking
Drain pan
Drain
hose
Leakage
checking
Downward slope
2
Do not make drain piping like the
following.
Do not raise
Water
leakage
Tip of drain hose
dipped in water
Water
leakage
Ditch
* The feature can be changed according to
type of model.
Evaluation of the performance
Operate the unit for 15~20 minutes, then
check the system refrigerant charge:
1
Measure the pressure of the gas side
service valve.
2
Measure the air temperature from inlet and
outlet of air conditioner.
3
Ensure the difference between the inlet
and outlet temperature is more than 8 °C.
4
For reference; the gas side pressure at
optimum condition is shown on table
(cooling)
The air conditioner is now ready to use.
Discharge air
* The feature can be changed according a
type of model.
Accumulated
drain water
Air
Water
Waving
leakage
Less than
50 mm gap
Inlet temperature
Discharge
temperature