LG ATNH126ELFC Service Manual page 60

Installation
Test running
1. PRECAUTIONS IN TEST RUNNING
• 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 firstly even during heating season. If
heating operation is carried out firstly, it leads to the trouble of compressor. Then
attention must be paid.
Carry out the test run more than 5 minutes without fail.
(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 sec-
onds at the same time.
• To cancel the test run, press any button.
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 items are room temperature, outside temperature, suction temperature, blow out temperature, wind
velocity, wind volume, voltage, current, presence of abnormal vibration and noise, operating pressure, piping
temperature, compressive pressure.
• As to the structure and appearance, check following items.
Is the circulation of air adequate?
Is the draining smooth?
Is the heat insulation complete
(refrigerant and drain piping)?
Is there any leakage of refrigerant?
2. 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.
3. Evaluation of the performance
1. Measure the temperature of the intake and dis-
charge air.
2. Ensure the difference between the intake tem-
perature and the discharge one is more than 8°C
(Cooling) or reversely (Heating).
60 Synchro Air Conditioner
Is the remote controller switch operated?
Is there any faulty wiring?
Are not terminal screws loosened?
M4......118N . cm{12kgf . cm} M5......196N . cm{20kgf . cm}
M6......245N . cm{25kgf . cm} M8......588N . cm{60kgf . cm}
Thermometer