5
Installation
Tower Installation
Install tower in a level position on a stable foundation. Anchor tower to
the foundation through holes at base of tower, using four
⁄
8
" diameter
bolts (not supplied). Remove strapping and brackets from the louver
face on Models 4940, 4950, and 4960 and reinstall the bolts to the cold
water basin.
Piping to Tower
(Summer–Only Operation)
1. Use large enough piping to minimize friction loss.
2. Connect float valve to makeup water supply. Install the threaded valve
stem and float located in the loose parts package.
. Install a valved blowdown line at some point in the system, preferably
in the hot water line near the top of the tower, so that water will flow
through the line whenever the pump is operating. (Blowdown is the
continuous removal of a small amount of water during operation to
retard scale and corrosion.)
Cooling
Tower
with
Bottom
Outlet
Heat
Load
Indoor
Storage
Tank
Pump
Make-Up
Line
Inlet
Gravity Line
from Outlet
Overflow and
Drain to Sewer
Figure 1
Summary of Contents for Aquatower 490A
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