12
07.16 207477 Rev.108
ROOF TOP UNITS
– AXIAL FAN
RMXCA/RMXCBA
START UP
• Start up is to be performed by qualified, technical personnel.
.
• Make a start-up checklist and use it to check up for service and maintenance. Record chilled water inlet and outlet
temperatures and pressures, outdoor air temperature, volts and amps of each compressor and fan motor, suction and
discharge pressure of each compressor.
• Keep in mind that, after 4 hours of system operation, it is necessary to clean the air filters.
• Closely supervise at least 3 cooling cycle operations.
1. Power Supply 400V ~3N 50Hz
2. Disconnect Switch
3. Control
POWER SUPPLY
230 v AC
3
2
BELDEN TYPE
BRAIDDING AND SHIELDED
1
L N T
• Ensure that all electrical connections are correct.
• Ensure that all panels are secured with screws.
• Check for oil or coolant leaks.
• Ensure that the unit is level.
• Check if areas for service and maintenance are clear.
• Check that the drain is not blocked.
• Check if the crankcase heater for each compressor is in operation for 24 hours before commissioning.
• Check air filters are clean and placed correctly.
• Check grills, diffusers, air ducts and tarpaulins.
• Ensure that the power supply is in accordance with what is stated on the serial plate.
• Verify that fans are rotating in the correct direction.
PRIOR TO START UP
