Evoqua Wallace&Tiernan 50-200 Series, Manual

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50-200 EVAPORATOR FOR CHLORINE
WT.050.200.001.UA.IM.0814
25
EVOQUA W3T98237
WARNING: TO AVOID SEVERE PERSONAL INJURY DUE TO CHLORINE LEAKS,
WHEN ANY CONNECTION IN A CHLORINE SYSTEM IS BROKEN EVEN FOR
A SHORT TIME, PLUG THE OPENING IN THE SYSTEM IMMEDIATELY TO
PREVENT THE ENTRANCE OF MOISTURE. PLUG THE OPENING OR USE
AUXILIARY CONTAINER VALVES TO PREVENT ENTRANCE OF MOISTURE
WHEN CONNECTING AND DISCONNECTING THE CHLORINE SUPPLY.
i. After the system up to the chlorinator inlet valve has been tested and found
acceptable, close the gas supply valve and run the chlorinator to exhaust
the gas in the evaporator and in the inlet line. When the evaporator pres-
sure gauge reads zero, the evaporator chlorine outlet valve may be closed.
If the evaporator pressure gauge shows pressure after the outlet valve has
been closed for several minutes, repeat the above procedure until the
evaporator pressure gauge holds zero. When this is done, disconnect the
piping from the gas valve and connect it to the liquid valve on the supply
container. With the evaporator water bath adequately filled and up to
operating temperature (approximately 180°F), open the liquid valve slowly
and check this new connection for leaks.
WARNING: ONCE THE LIQUID SUPPLY VALVE HAS BEEN OPENED,
ALL VALVES IN THE LIQUID SUPPLY LINE MUST BE LEFT OPEN UNTIL
EITHER THE SUPPLY OF LIQUID HAS BEEN EXHAUSTED OR THE SUP-
PLY LINE AND EVAPORATOR ARE BEING EMPTIED BY THE CHLORI-
NATOR OR OTHER MEANS OF DISPOSAL. FAILURE TO FOLLOW THIS
PROCEDURE MAY RESULT IN AN OVERPRESSURE CONDITION AND
DISCHARGE OF GAS FROM THE RELIEF SYSTEM.
3.1.3 Cathodic Protection System
Sodium sulfate is added to the water bath to increase its conductivity, thus
aiding in the start of the cathodic protection process. Observe and follow
these instructions:
a. Remove the caplug covering the 2-3/4-inch hole in the top of the tank.
WARNING: THE TOP OF THE TANK WILL BE HOT (180°F). TO AVOID SE-
VERE PERSONAL INJURY DUE TO HOT SURFACES, DO NOT REMOVE OR
REINSTALL CAPLUG WITH BARE HANDS; USE A GLOVE OR OTHER INSU-
LATING MATERIAL.
b. Add 1/4 lb. (approximately 1/4 of the bottle provided) of sodium sulfate
to the water bath when starting up for the first time. For best results, dis-
solve 1/4 lb. of sodium sulfate in one or two quarts of water and pour this
solution into the water tank.
c. Replace caplug (See above warning.)
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