14
ESW4 Closed Circuit Coolers
General Information - Start-up & Maintenance Start-up Details
Shipping Chocks and Debris
Remove any chocks that have been placed inside the unit for shipping purposes. Be sure to remove the chocks from between the
fan and fan guard if applicable. Clean all debris from the basin prior to start-up. Clean and secure all access doors.
Pump Discharge Line
Connect the riser pipe from the pump discharge on the basin section to the riser pipe on the coil/fan section using the flexible
connection and hose clamps provided.
Bleed-off Line
A bleed-off line and valve are installed on the unit when shipped with a pump. On units shipped without a pump (remote sump
applications) make sure a bleed-off line and valve are properly sized and installed on the discharge side of the pump and
connected to a convenient drain. In either case, the bleed-off valve should be fully open.
Strainer
Check the strainers, if applicable, in the basin section to make
certain they are in the proper location over the pump suction,
along side of the anti-vortex hood. (See Figure 24.)
Screens
Protective fan screens are provided across the top of the fan cylinders of all models. Check and tighten all bolts.
Float Valve Adjustment
The float valve is pre-set at the factory; however, adjustment
should be checked after rigging. The float valve should be
adjusted so that the centerline of the float is at the
measurement shown in Table 6 from the basin bottom. Raise
or lower the float by using the wing nuts on the vertical
threaded rod only. Do not adjust the horizontal rod.
SUCTION HOOD
STRAINER
Figure 24
– Strainer Location
Unit Width
Level
8.5’ (2.6m)
9” (23cm)
12’ (3.6m)
10” (30cm)
14’ (4.2m)
9” (23cm)
Table 6
– Recommended Water Level
