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APC ACRD500 Installation Manual Page 15

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7InRow RD Operation and Maintenance
Start-up Inspection Checklist
The start-up inspection ensures that the equipment is operating properly after the initial start-up. This
inspection verifies that all modes of operation are working correctly and that the cooling unit is ready for
normal operation.
Electrical Hazard: Perform Lockout/Tagout procedures on the cooling unit before
servicing. Failure to remove power before servicing this equipment could result in serious
injury or death.
Electrical Hazard: This equipment may have multiple power sources. Disconnect all power
sources before performing any electrical or mechanical service.
Electrical Hazard: Measuring current draw exposes hazardous voltages. Use care when
making these measurements. Wear personal protective equipment when working around
hazardous voltages.
While the equipment is operating, ensure that:
The sight glass moisture sensor is green.
The current draw of fan motors, compressor, and transformers for the cooling operation is within the
ratings of the respective circuit breakers.
1. Record the current at the main power connection of the main circuit breaker.
2. Record all current draws on the load side of any circuit breakers used for each device.
3. Compare the circuit breaker setting for each device to the actual current measured and the full load
amps of the device to verify that the current draws are acceptable.
Compressor suction and discharge pressures are recorded.
The cooling unit has the proper refrigerant charge for year-round operation
The cooling unit is free from malfunctions, including leaks, unusual vibrations, or other irregularities, in
each mode of operation.
The high-pressure switch is operating correctly.
1. Shut down the condenser.
2. The head-pressure will rise until the high-pressure switch shuts down the compressor.
3. Recort the shut-off point.
The cool cycle engages.
Air filters are clean and free of debris. Replace air filters with APC air filters only. (APC part number
W875-201)
The clogged filter alarm is operating properly.
Cover 1/3 of the filter area to initiate the alarm.
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