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42
Operation
CAUTION
Evaporator Damage!
To prevent freeze damage to evaporator internal components, protect
with adequate strength antifreeze, and be certain to energize
evaporator heat tapes. Failure to do so may result in equipment
damage.
Note: If system has been drained for shutdown do not energize heat
tapes(s).
System Restart After Extended Shutdown
Use this procedure to prepare the system for restart after an extended shut-
down:
1. Remove winterization antifreeze as it can reduce system capacity.
2. Verify that both the unit and the chilled water pump circuit breakers are
open; then remove control circuit Fuse (FU) from the unit control panel.
3. Close the unit circuit breakers to energize the compressor crankcase
heaters.
Note: The unit's compressor crankcase heaters will energize when the cir-
cuit breaker is closed; these crankcase heaters must operate at least 8
hours before the compressors are allowed to start. Disconnect shore power
prior to closing unit circuit breaker.
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.
4. Fill the chilled water (i.e., evaporator) circuit; evaporator storage capaci-
ties are indicated in Table 7 (see "Water System"). Be sure to vent the
system while filling it, and close the vent when system is full.
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.
5. Close the chilled water circuit breaker, and start the chilled water pump
motor. With water circulating through the chilled water system, inspect all
piping connections for leaks and make any necessary repairs.
CSRA-SVX01A-EN
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