6
Multi-Cell Installation
Refer to the submittal drawings for the proper orientation of each cell. The number and
“face” are stenciled on the outer basin wall. Multi-cell cooling tower installations may
employ flume boxes to equalize the water level in the basin of each cell. Follow directions
in “Flume Box Installation” for details on their installation.
Multi-Cell Unit Assembly
1. First, position the lower section of all cells on the unit supports and bolt in place.
Some units come furnished with a flume box. If they do, use the flume box assembly
procedure outlined in “Flume Box Installation” to connect the basins of the multi-cell
units.
2. Wipe any moisture and dirt from the perimeter mating flanges.
3. Install foam seal tape (BAC part # 270175) supplied with the unit, as illustrated in
Figure 3
, on
on the mating flanges of the lower sections in a continuous line.
At each corner, allow 1” overlap.
4. Complete assembly using the internal drift pin alignment guides:
–
Using drift pins in the drift pin guides provided (
Figure 7
), guide the top section on
to the bottom section.
–
Match marks must line up as shown in
Figure 3
on
page 5
.
–
Bolt the top sections onto the bottom sections as shown in
Figure 4
on
page 5
using
the bolting channels in
Figure 6
.
Flume Box Installation
1. Position Cell #1 on the unit support and bolt in place.
2. Wipe down the surface adjacent to the flume opening of Cell #1 to remove any dirt or
moisture that may have accumulated during shipment.
3. Wipe down the flanges on both ends of the flume box. On one end, apply a layer of
flat butyl sealer tape (BAC part # 554000) around the face of the flange over the
centerline of the holes. Do not overlap or stretch too thinly at the corners. When it is
necessary to splice the sealer tape, be sure to press the two ends together to form a
smooth, continuous strip. Apply a second layer of flat butyl sealer tape over the first
layer following the same procedure. Refer to
Figure 8, Detail A
.
4. Using drift pins to align the bolt holes, place the flume box over the opening in the
basin of Cell #1.
5. Fasten into place as shown in
Figure 9
. For basins with TriArmor
®
Corrosion Protection
System, backing plates are to be installed inside the basin and flume box opening (see
Figure 10
,
Detail A
). Insert the 3/8” self-tapping screws or bolts in each hole from the
flume box into the basin wall and backing strips (if applicable) as illustrated in
Figure
10
.
NOTE:
Flume boxes furnished
with units constructed with
TriArmor
®
Corrosion Protection
System or stainless steel basins
are assembled with stainless
steel bolts, washers and nuts
in lieu of self tapping screws.
Before installing the nuts, apply a
lubricant to the bolts to reduce the
potential for seizing.
Figure 6.
Upper and Lower Assembly - Drift Pin Guides
Drift Pin Guides
Figure 7.
Bolting Channels
Bolting Channels
