5
ATC-E, ATC-ES, ATWB, eco-ATWB and eco-ATWB-E Evaporative Condensers and Closed Circuit Coolers
For units on which the flume box ships loose:
1. Rig one of the bottom sections of the multi-cell unit. Bolt to steel support.
2. One face of the flume box is provided with 3/8” (10mm) welded bolts. Clean the mating flume opening
on the rigged bottom
section and apply a layer of sealer tape on this surface, centered between the hole centers and the outside edge. Remove
paper backing strip from sealer tape.
3. Align the bolt holes in the rigged bottom section with the welded 3/8” (10mm) bolts on the flume box.
4. Install 3/8” (10mm) nuts and washers on every bolt around the flume opening and tighten.
5. Follow steps 4 through 10 as shown below.
For units on which the flume box ships mounted to one cell:
1. Install the bottom section with the factory installed flume box on it as described above.
2. Clean the flanges on the flume box on the end to be field connected. Apply a layer of sealer tape on the flange, centered
between the hole centers and the outside edge. Remove paper backing strip from the sealer tape.
3. Clean the mating surface of the flume opening of any dirt, grease or moisture.
4. Rig the second bottom section adjacent to the equalizer flume on the steel support as shown in the sequential figures that
follow.
5. Align the bolt holes in the flume box and flume opening with drift pins (by others) while drawing the second bottom section
against the flanged connection.
6. Install 3/8” (10mm) bolts, nuts, and washers in every hole around the flume opening and tighten.
7. Bolt the second bottom section to the steel support.
8. Remove the 1/4” (6mm) bolts which hold the drip channel retaining clips to the end panel. Place the drip channel over the
adjoining pan section flanges. Turn around the retaining clips and install them using the same hardware.
9. If there are multiple drip channels, fasten them together end-to-end by driving a self-tapping 5/16” (8mm) screw through the
section end with the larger hole into the mating end with the smaller hole. Stainless steel units will use 5/16” (8mm) stainless
steel nuts and bolts.
10. Place the vertical splash guard in the bend of the vertical supports. On galvanized units, attach the vertical splash guard using
5/16” (8mm) self-tapping screws. On stainless steel units, attach the vertical splash guards using 5/16” (8mm) stainless steel
nuts and bolts. (See figure 3a)
11. Once the bottom of the vertical splash guard has been attached to the drip channel, place the filler cap channel in the upper
flanges of the bottom section as shown in Figure 3a. Attach to vertical splash guards using 5/16" (8mm) tappers (for galvanized
units) or stainless steel nuts and bolts (for stainless steel units).
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