SPX Cooling Technologies FSIG-TS-08A Specifications, Specification Value, Fiberglass Ladder

Marley / Sigma F Series CoolingTower / Specifications: Options 28

Specifications

Fiberglass Ladder:

9.3Change paragraph 9.3 to read as follows: One endwall of the tower shall be equipped with an 18" (457 mm) wide fiberglass vertical ladder, supported by hot-dip galvanized steel brackets through-bolted to the endwall structure. Ladder shall rise from the cold water basin level to the top of the fan deck guardrail, and shall be designed and installed in conformance with OSHA standards. A horizontal- swing, gravity-closing safety bar shall be provided across the ladder opening at the fan deck.

Low Noise Tower:

1.1Add the following at the end of para- graph 1.1: The cooling tower shall be quiet operating, and shall produce an overall level of sound no higher than

____ dBA at the critical location indi- cated on the Plans.

Fire-Retardant Fiberglass:

3.7Add the following paragraph in the Construction section: All fiberglass components in the cooling tower shall have a flame spread rating of 25 or less.

Fan Cylinder Extension:

4.2Add a third sentence in paragraph 4.2 to read as follows: Overall fan cyl- inder height shall be 10 feet above the fan deck level.

Increased Wind and/or Earthquake Load:

Premium Hardware:

Specification Value

■This option is for those customers who either prefer fiberglass ladders, or whose atmospheric conditions at the cooling tower location dictate its use.

■Sound produced by a Sigma tower operating in an unobstructed environment will meet all but the most restrictive noise limita- tions. Where sound levels may be considered critical, however, low noise levels can be achieved by any of several techniques. Please discuss your requirements with your local Marley sales representative.

■This option will affect the the standard casing panels, the plenum partitions between cells, the fan cylinders, and the optional fiber- glass stairway flights and landing panels.

■Extended fan cylinder heights are useful where it is important to discharge the cooling tower's leaving plume at a certain eleva- tion. This may be to avoid recirculation, or to keep the plume above a nearby structure.

■If your geographic location dictates the application of higher wind and/or seismic loads, please discuss with your local Marley repre- sentative and change paragraph 3.3 to read appropriately. Please also ask for revised concrete basin or supporting steel drawings from Marley which reflect the higher load requirements.

■Marley can provide hardware materials suitable for all aggres- sive water conditions, including salt water. Please discuss with your Marley representative and change specification paragraphs appropriately.