Evoqua Wallace&Tiernan 50-200 Series, Руководство пользователя

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50-200 EVAPORATOR FOR CHLORINE
WT.050.200.001.UA.IM.0814
23
EVOQUA W3T98237
e. The high temperature alarm switch, labeled TS2-HIGH and located next to
the low temperature switch TS3-LOW, is factory calibrated. No adjustment
is necessary.
f. The pressure relief alarm switches are factory preset at 20 psi. No further
adjustment of these switches is needed.
WARNING: IF ANY OF THE RESPONSES TO THE ELECTRICAL CONTROLS
IN B, C, D, AND E ARE NOT OBSERVED, A FAULTY CONTROL DEVICE
OR WIRING ERROR IS INDICATED. IN ORDER TO AVOID POSSIBLE
PERSONAL INJURY OR EQUIPMENT DAMAGE, TAKE CORRECTIVE
ACTION BEFORE PROCEEDING. SEE THE TROUBLESHOOTING GUIDE
IN SECTION 4.
3.1.2 Leak Testing
WARNING: 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.
NOTE: Do not install the rupture discs yet; wait until instructed to do so.
a. Connect a supply of dry air or nitrogen to the evaporator supply line.
b. Purge the system with the dry air or nitrogen to remove all moisture.
WARNING: TO AVOID SEVERE PERSONAL INJURY DUE TO A CHLORINE
LEAK(S), THE SUPPLY LINE MUST BE COMPLETELY DRY AND FREE
OF OIL OR GREASE. AVOID LEAK TESTING WITH WATER. STEEL PIP-
ING WILL RAPIDLY CORRODE IF ANY MOISTURE IS PRESENT WHEN
CHLORINE IS ALSO IN THE PIPE.
c. Pressurize the system with dry air or nitrogen to 50 psi and check the
pressure switches for correct operation. When the 50 psi is applied, the
pressure relief alarm switch contacts will close.
d. Vent the pressure and install the rupture discs, taking care not to let mois-
ture enter the system.
CAUTION: When installing the rupture discs, ensure that the groove of the
disc fits the mating tongue of the safety head to avoid altering the operation
level of the rupture disc. Install the disc as per the instructions that accom-
pany the rupture discs.
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