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maintenance
3– If shutdown period is longer than seasonal, contact your Marley sales representative
for additional information.
ClearSky Plume Abatement System
Close dry dampers to prevent foreign objects
from entering the dry ducts.
Cooling Tower Inspection and Maintenance:
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.
In addition, the following steps are recommended:
Do NOT attempt any service unless the fan motor is locked out.
• Consult a knowledgeable water treatment professional to clean and treat your cool-
ing tower prior to startup. See
Before Startup
section of this manual.
• Cooling towers must be cleaned and disinfected regularly in accordance with
ASHRAE Standard 188 and Guideline 12.
• Workers performing decontamination procedures must wear personal protective
equipment (PPE) as directed by their facility safety officer.
• Cooling towers must be visually inspected regularly to assess signs of bacterial
growth, appearance of debris and scale on drift eliminators and general operating
conditions. Refer to ASHRAE Standard 188 and Guideline 12 for specific frequency
recommendations.
• Replace worn or damaged components.
To minimize the presence of waterborne microorganisms, including Legionella, follow
the water management plan for your facility, perform regularly scheduled cooling tower
inspections and maintenance, and enlist the services of water treatment professionals.
For additional technical support, contact your Marley sales repre-
sentative. For help identifying the sales representative in your area, visit
spxcooling.com/replocator.
References:
ashrae.org. Search “ASHRAE Standard 188” and “ASHRAE Guideline 12.”
cdc.gov. Search “Water Management Program.”
Warning