Wallace & Tiernan SERIES V-2000, Руководство пользователя

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WT.025.055.004.UA.IM.0814
MANUAL CHLORINATOR - 3000LB/24HR
EVOQUA W3T109620
e. Close the supply container valve(s). Shut off the injector and let normal
backpressure remain. Remove the tubing from the gas inlet connection
at the injector. Note if any water drips from the end of the disconnected
tubing (there should be none) and leave the tubing disconnected for ap-
proximately 10 minutes. Note if any water appears at the outer end of the
connection fitting on the injector. If any water is seen, service the injector
back check.
f. With the injector shut off and the supply container valve closed, turn the
vacuum regulator off. Remove the tubing from its connection on the unit.
Check for leaks per paragraph 4.1.1, Checking for Leaks, to verify that the
unit shuts off tightly (no white vapors). A slight trace of vapor at the mo-
ment of disconnection may be ignored but any continuing vapor formation
is an indication of gas passing the valve seat. If continuing vapor formation
is observed, service the unit stem and seat parts.
4.11.2 Cleaning
Perform at intervals as tabulated below:
MAINTENANCE ITEM WHEN TO PERFPRM
Vacuum Regulator-Check Unit Refer to separate instruction book.
Rotameter When deposits are seen inside the
glass tube or the float sticks in one
place.
V-Notch Plug At same time as rotameter.
Injector Throat and Tailway Every six months.
NOTE: The actual frequency of cleaning will depend on calendar time, the
feed rate and amount of gas fed, the care exercised in cylinder changing, the
source of gas, and the quality of the operating water. The above maintenance
schedule provides recommended cleaning intervals; however, your own
operating experience is the best guide to preventive maintenance and may
result in significant variations from the recommended schedule.
4.11.3 Cleaning Rotameter
If a milky-white, powdery-white, green-slimy, or brown-oily deposit is visible
inside the rotameter tube, or if the float has particles clinging to it or tends to
stick to the tube wall at lower feeds, it is time to clean the rotameter. Proceed
carefully to avoid dropping the glass tube or losing the float down a floor drain
or grating. To facilitate handling the float, have a clean cup, such as a coffee
cup or a small beaker, and a pair of tweezers on hand before starting. Proceed
as follows: