Cold Water Basin; Operating Level Of Water In Cold Water Basin - EVAPCO ESW Series Operation And Maintenance Instruction

Cold Water Basin

The cold water basin should be flushed out quarterly, and checked monthly or more often if necessary, to remove any accumulation of
dirt or sediment which normally collects in the basin. Sediment can become corrosive and cause deterioration of basin materials. When
flushing the basin, it is important to keep the suction strainers in place to prevent any sediment from entering the system. After the basin
has been cleaned, the strainers should be removed and cleaned before refilling the basin with fresh water.

Operating Level of Water in Cold Water Basin

The operating level should be checked monthly to make sure the water level is correct. Refer to Table 3 for unit specific levels.
Evaporative Condenser
Model Number
ATC-E Products
50E to 165E,
170E to 3714E
eco-ATC-H
8.5' Wide to 24' Wide
eco-ATC Products
122A to 3846A
LRC Products
LSC-E Products
185 to 385
400 to 515, 800 to 1030
550 to 805, 1100 to 1610
PMC-E, eco-PMC
175E to 375E, 183 to 387
332E to 2019E, 275 to 2191
PHC-S, L and D Products
S-208 to S-1182
L-464 to L-842
D-621 to D-2050
* Measured from lowest point on basin floor.
** Not available on eco-ATWE.
Measured from the overflow.
At initial start up or after the unit has been drained, the unit must be filled to the overflow level. Overflow is above the normal operating
level and accommodates the volume of water normally in suspension in the water distribution system and the riser piping.
The water level should always be above the strainer. Check by running the pump with the fan motors off and observing the water level
through the access door or remove the air inlet louver.
ATWB, eco-ATW & eco-ATWE Products
8.5' wide to "7' wide thru 24' wide"
25 to 379
36 to 170
—
–
Table 3 - Recommended Operating Water Level
Closed Circuit Cooler
Footprint
3' and 4' wide units**
eco-ATWB-E
8.5' wide thru 24' wide
LRWB Products
3' wide thru 8' wide units
LSW Products
4'x6' thru 4'x12'
5.5'x12', 5.5'x18'
8'x12', 8'x24', 10'x12', 10'x24'
8'x18', 8'x36', 10'x18', 10'x36'
ESW4 Products
8.5' and 14' wide units
12' wide unit
ESWA Products
8.5' wide thru 12' wide units
18
Operating
Water Level*
9"
11"
11"
11"
8"
11"
11"
12"
15"
10"
14"
9"
10"
11"
9"
9"
10"