LG APNH2433LAD, Svc Manual

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Copyright ©2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
4. Test Run
2.2.1 PRECAUTIONS IN TEST RUN
• The initial power supply must provide at least 90% of the rated voltage.
Otherwise, the air conditioner should not be operated.
CAUTION:
For test run, carry out the cooling operation first even during winter season. If heating operation is carried out
first, it leads to the trouble of compressor.
Carry out the test run more than 5 minutes without stopping.
(Test run will be cancelled 18 minutes later automatically)
• The test run is started by pressing the room temperature checking button and down timer button for 3 seconds
at the same time.
• To cancel the test run, press any button.
2.2.2 CHECK THE FOLLOWING ITEMS WHEN INSTALLATION IS COMPLETE
• After completing work, be sure to measure and record trial run properties, and store measured data, etc.
• Measuring data are room temperature, outside temperature, suction temperature, blow out temperature,
air velocity, air volume, voltage, current, presence of abnormal vibration and noise, operating pressure, piping
temperature.
• As to the structure and appearance, check following items.
❏
Is the circulation of air adequate?
❏
Is the drainage OK?
❏
Is the heat insulation complete
(refrigerant and drain piping)?
❏
Is there any leakage of refrigerant?
❏
Does the romote controller works properly?
❏
Is there any error on wiring?
❏
Aren't terminal screws loosened?
M4......118N.cm{12kgf.cm} M5......196N.cm{20kgf.cm}
M6......245N.cm{25kgf.cm} M8......588N.cm{60kgf.cm}
3. Connection of power supply
1. Connect the power supply cord to the independent power supply.
• Circuit breaker is required.
2. Operate the unit for fifteen minutes or more.
4. Evaluation of the performance
1. Measure the temperature of the intake and discharge air.
2. Ensure the difference between the intake temperature and the discharge one is more than
8°C (Cooling) or reversely (Heating).