Evoqua Wallace&Tiernan 50-200 Series, Manual

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EVOQUA W3T98237
50-200 EVAPORATOR FOR CHLORINE
WT.050.200.001.UA.IM.0814
SP-1
VERY IMPORTANT SAFETY PRECAUTIONS
This and the following page titled “Very Important Safety Precautions” provide, in brief, information of urgent
importance relative to safety in the installation, operation, and maintenance of this equipment.
WARNING
THIS EQUIPMENT IS SUITABLE FOR USE WITH CHLORINE ONLY. DO NOT USE WITH OTHER GASES. SUCH USE
CAN RESULT IN MALFUNCTION OR FAILURE OF VARIOUS COMPONENTS, CAUSING POSSIBLE SEVERE PER-
SONAL INJURY.
TO AVOID SEVERE PERSONAL INJURY AS A RESULT OF A CHLORINE LEAK(S), ENSURE THAT THE CHLORINATOR
IS READY FOR OPERATION BEFORE CHLORINE IS INTRODUCED INTO THE EVAPORATOR AND ITS CONNECTING
PIPELINES. OPERATION OF THE CHLORINATOR MAY BE NECESSARY TO DISPOSE OF CHLORINE TO PERMIT THE
REPAIR OF LEAKS. IF THE EVAPORATOR IS USED WITHOUT A CHLORINATOR, PROVIDE AN ALTERNATE MEANS
OF DISPOSAL.
IF THE SUPPLY CONTAINER DOES NOT HAVE ADEQUATE RESERVE CAPACITY TO ACCEPT THE MAXIMUM CON-
TENTS THAT ARE BEING FORCED FROM THE EVAPORATOR CYLINDER, DO NOT STOP CHLORINATION. INSTEAD,
IN ORDER TO PREVENT OVER-FILLING AND DEVELOPING EXTREME PRESSURES WITHIN THE SUPPLY CONTAINER,
CLOSE THE SUPPLY VALVE AND USE THE CHLORINATOR OR GAS DISPOSAL SYSTEM TO COMPLETELY EVACUATE
THE EVAPORATOR AND ITS CONNECTING PIPELINES.
TO AVOID SEVERE PERSONAL INJURY OR CYLINDER RUPTURE, DO NOT INSTALL A VALVE OF ANY TYPE
BETWEEN THE EVAPORATOR DISCHARGE AND THE GAS PRESSURE RELIEF SYSTEM. RUN THE OUTFLOW
FROM THE RELIEF VALVE TO ATMOSPHERE. TERMINATE THE RELIEF LINE IN AN AREA WHERE GAS FUMES
CANNOT CAUSE DAMAGE OR INJURY TO PERSONNEL. DO NOT TERMINATE THE RELIEF LINE AT A LOCA-
TION ROUTINELY USED BY PERSONNEL, SUCH AS WORK AREAS OR PATHWAYS, NOR NEAR WINDOWS OR
VENTILATION SYSTEM INTAKES. IF AN AREA MEETING THESE REQUIREMENTS IS NOT AVAILABLE, REFER TO
THE CHLORINE INSTITUTE FOR ALTERNATE METHODS OF DISPOSAL.
TO AVOID AN OVERPRESSURE CONDITION CAPABLE OF RUPTURING THE PIPING SYSTEM AND RESULTING
IN A DISCHARGE OF GAS FROM THE GAS PRESSURE RELIEF SYSTEM, DO NOT CLOSE ANY VALVE OR VALVES
BETWEEN THE EVAPORATOR AND THE CHLORINE SUPPLY WITHOUT FOLLOWING THE EVACUATION PROCE-
DURE DESCRIBED IN THIS INSTRUCTION BOOK. LIQUID CHLORINE HAS A HIGH COEFFICIENT OF THERMAL
EXPANSION. DO NOT CLOSE VALVES IN SUCH A WAY THAT LIQUID CHLORINE MAY BE TRAPPED, SINCE DAN-
GEROUS PRESSURES CAPABLE OF RUPTURING THE PIPING SYSTEM MAY BUILD UP WITH A SMALL INCREASE
IN TEMPERATURE.
DO NOT REMOVE THE PRESSURE RELIEF SYSTEM WHILE THE EVAPORATOR IS PRESSURIZED.
TO AVOID A MAJOR RELEASE OF CHLORINE, DO NOT OPEN THE LIQUID LINE PRESSURE RELIEF SYSTEM WHILE
THE EVAPORATOR IS PRESSURIZED.
THE GAS LINE TO THE REGULATING VALVE MUST BE SHORT WITH A SLIGHT DOWN-GRADE TOWARD THE
EVAPORATOR, ALLOWING ANY RELIQUEFIED CHLORINE TO DRAIN BACK TO THE EVAPORATOR. THIS WILL
PREVENT ANY RELIQUEFIED CHLORINE FROM REACHING AND DAMAGING EQUIPMENT DOWNSTREAM OF
THE REGULATING VALVE.