LG LP-8091PC, Service Manual

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5-9. Final Check and Test Run
After installing the unit, perform the final check and run-
ning test as follows:
Final check points
① Is the unit securely mounted?
②
Is the installation location adequate?
③
Is the water piping work adequately and without
leakage?
④ Are trapped drain lines installed at condensate
drain connections?
⑤ Has the refrigeration cooling cycle been kept
sealed?
⑥
Is the electrical wiring adequate and are the
screws tightened on terminals?
After the above final checkings, prepare the running
test as follows:
① Connect compound gauges to the check joints at
discharge and suction sides of the compressor.
②
Turn all switches "OFF".
③ Turn the main switch "ON".
Running test should be accomplished as follows:
① Set operation switch at "FAN" and the fan will
start. Check to ensure that the fan sounds nor-
mal.
②
Next, set it at "COOL" and the compressor will
start. Check to ensure that the compressor
sounds normal.
③
Check discharge and suction pressure on the
compound gauges.
④ Check working voltage, phase balance and run-
ning current.
⑤ Check to ensure that the thermistor functions
properly.
⑥
Check to ensure that the high pressure control
switch functions correctly.