Final Check And Test Run - LG LP-E5020CL Service Manual

6.9 Final Check and Test Run

After installing the unit, perform the final check and run-
ning test as follows:
¤ Is the unit securely mounted?
¤ŁIs the installation location adequate?
¤ØIs the water piping work adequately and without
leakage?
¤ŒAre trapped drain lines installed at condensate
drain connections?
¤ºHas the refrigeration cooling cycle been kept
sealed?
¤ Is the electrical wiring adequate and are the screws
tightened on terminals?
After the above final checkings, prepare the running
test as follows:
¤ Connect compound gauges to the check joints at
discharge and suction sides of the compressor.
¤ŁTurn all switches "OFF"
¤ØTurn the main switch "ON"
Running test should be accomplished as follows:
¤ Set operation switch at "FAN" and the fan will start.
Check to ensure that the fan sounds normal.
¤Ł Next, set it at "COOL" and the compressor will
start. Check to ensure that the compressor sounds
normal.
¤ØCheck discharge and suction pressure on the com-
pound gauges.
¤ŒCheck working voltage, phase balance and running
current.
¤ºCheck to ensure that the thermistor functions prop-
erly.
¤ Check to ensure that the high pressure control
switch functions correctly.
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