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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
¤ 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 nor-
mal.
¤ŁNext, set it at "COOL" and the compressor will
start. Check to ensure that the compressor
sounds normal.
¤ØCheck discharge and suction pressure on the
compound gauges.
¤ŒCheck working voltage, phase balance and run-
ning current.
¤ºCheck to ensure that the thermistor functions
properly.
¤ Check to ensure that the high pressure control
switch functions correctly.
–27–
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