User manual

13
Fluid Cooler Start-Up
Amongothersources,outbreaksofLegionnaires’Diseasehavereport-
edly been traced to cooling towers and fluid coolers. Maintenance and
water treatment procedures that prevent amplification and dissemina-
tion of Legionella and other airborne bacteria should be formulated
and implemented BEFORE systems are operated and continued
regularlythereaftertoavoidtheriskofsicknessordeath.
Water System:
1. New installations should be cleaned and treated with biocides by a water
treatment expert before startup.
2. Remove any and all accumulated debris from fluid cooler. Pay particular
attention to inside areas of collection water basin, distribution water
basins, louvers and drift eliminators. Make sure that cold water suction
screens are clear and properly installed.
3. Fill the water system to an approximate depth of 8" (203 mm) in the
depressed area of the collection water basin. This is the recommended
operating water level. Adjust the oat valve so that it is 75% open at
that level. Continue filling the system until the water reaches a level ap-
proximately 1/8" (3 mm) below the lip of the overflow.
4. Start your pump(s) and check for proper rotation as indicated by the ar-
row on the pump cover, observe system operation. A certain amount of
“pump-down” of the basin water level will occur before water completes
the circuit and begins to fall from the fill in the upper module. The amount
of initial pump-down may be insufficient to cause the float valve to open.
However, you can check its operation by pressing down on the operating
lever to which the stem of the float valve is attached.
Operation
Warning
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