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30
Pre-Start
Procedures
[ ] Check power supply voltage to the unit at the circuit breaker; the voltage
reading obtained must be within the voltage utilization range shown in Table
4. Also, voltage imbalance must not exceed 2%. (Refer to "Unit Voltage and
Amperage Checks")
[ ] Check the condenser fan assemblies; the fan blades should rotate freely
in the fan orifice, and be securely attached to the fan shaft.
[ ] Disconnect power supply to shore power. Remove control circuit Fuse
(FU) from the main unit control panel; then energize the compressor crank-
case heaters by closing the unit's circuit breaker. The crankcase heaters
should operate at least 8 hours before the compressors are allowed to start.
Note: To prevent compressor operation during this 8-hour interval, control
circuit fuse (FU) must be removed from the unit control panel.
CAUTION
Compressor Damage!
Compressor crankcase heaters must be energized at least 8 hours
before unit start-up. Failure to do so may result in compressor
mechanical damage.
[ ] Fill the chilled water (evaporator) circuit, leaving the system air vents
open. Close vents after filling.
CAUTION
Proper Water Treatment!
The use of untreated or improperly treated water in an Air-Cooled Cold
Generator may result in scaling, erosion, corrosion, algae or slime. It is
recommended that the services of a qualified water treatment
specialist be engaged to determine what water treatment, if any, is
required. Trane assumes no responsibility for equipment failures
which result from untreated or improperly treated water, or saline or
brackish water.
[ ] Turn handle to "On" position on pump starter enclosure. Check the pump
rotation.The pump should start water circulating through the chilled water
system, inspect all piping connections for leaks and make any necessary
repairs.
[ ] Adjust the water flow rate through the chilled water circuit, and check the
water pressure drop through the evaporator. Refer to "Water System".
[ ] Open the unit circuit breaker; then reinstall control circuit Fuse (FU) in the
unit control panel (i.e., provided the compressor crankcase heaters have
been energized at least 8 hours), and re-close the circuit breaker. Adjust the
flow switch (installed on the evaporator outlet piping) to provide proper oper-
ation.
CSRA-SVX01A-EN
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