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 M10 diameter bolts (not
supplied). Remove strapping and brackets from the louver face on models
494—496 and reinstall the bolts to the cold water basin. Install the overflow
(fiberglass models only) as shown in Figure 1.
INSTALL DRAIN FITTING
WITH GASKET ON TOP
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 2
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.
3. 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.)
Figure 1
➠
