5
Before Startup
Microorganisms including Legionella bacteria can exist in premise plumbing in-
cluding cooling towers. The development of an effective water management plan
(WMP) and implementation of maintenance procedures are essential to prevent
the presence, dissemination and amplification of Legionella bacteria and other
waterborne contaminants throughout premise plumbing. Before operating the
cooling tower, the water management plan and maintenance procedures must
be in place and regularly practiced.
1–Consult a knowledgeable water treatment professional to clean and treat your new
cooling tower prior to startup. Cooling towers must be cleaned and disinfected
regularly in accordance with ASHRAE Standard 188 and Guideline 12.
2–Do NOT attempt any service unless the fan motor is locked out.
When starting in freezing weather, follow procedures outlined in Freezing Weather
Operation.
INSPECTION
–It is imperative that all operating assemblies be inspected before they
are placed in operation. The following is a list of components to be checked before
starting the tower:
1–Check driveshaft alignment. Realign if necessary. See the Drive Shaft User Manual.
2–Check tightness of bolts in fan cylinder joints.
3–Check tightness of the following bolted joints in the fan and drive assemblies:
a–Fan hub clamp bolts. See the Fan User Manual for correct torque setting).
b–Fan hub cover bolts.
c–Geareducer
®
and motor mounting bolts.
d—Driveshaft coupling and guard bolts.
4– Check Geareducer oil for sludge or water by draining off and testing a sample as
outlined in the Geareducer User Manual
.
Check Geareducer oil level at “oil level” mark
on the side of the case. Add oil as required. The oil level placard must be adjusted
so that its “full” mark is at the same elevation as the “full” mark on the side of the
Geareducer case. Check oil lines to be sure there are no leaks. See the Geareducer
User Manual
for oil filling procedure and list of recommended lubricants.
5– Rotate fan by hand to be sure of free rotation and ample tip clearance. See the
Fan User Manual
.
6– Check motor insulation with a megohm meter. Refer to the Maintenance Section
of the Marley
“Fan Motor”
User Manual
.
Warning
Note
➠
operation