Test Running - LG UHXM120BA1 Installation Manual

TEST RUNNING

- Check that all tubing and wiring have been
properly connected.
- Check that the gas and liquid side service
valves are fully open.
Prepare remote control
Remove the battery cover by pulling it
according to the arrow direction.
Insert new batteries making sure that the (+)
and (–) of battery are installed correctly.
Reattach the cover by pushing it back into
position.
NOTE
!
• Use 2 AAA(1.5 volt) batteries. Do not
use rechargeable batteries.
• Remove the batteries from the remote
control if the system is not going to be
used for a long time.
Bolt
Evaluation of the performance
Operate unit for 15~20 minutes, then check
the system refrigerant charge:
- Measure the pressure of the gas side service
valve.
- Measure the temperature of the intake and
discharge of air.
- Ensure the difference between the intake
temperature and the discharge is more than
8 °C.
- For reference, the gas side pressure of
optimum condition is as below.(Cooling)
Refrigerant
Tubing connection
TEST RUNNING
Outside
ambient
TEMP.
R410A 35 °C (95 °F)
(120~135 P.S.I.G.)
NOTE
!
If the actual pressure are higher than
shown, the system is most likely over-
charged, and charge should be removed.
If the actual pressure are lower than
shown, the system is most likely
undercharged, and charge should be
added.
The air conditioner is now ready for use.
Intake temperature
Discharge air
Intake temperature
Discharge air
Intake temperature
Discharge air
Discharge
temperature
37
The pressure of
the gas side
service valve.
2
8.5~9.5 kg/cm G
Discharge
temperature
Discharge
temperature