Marley / NC Class Stainless CoolingTower / Specifications: Options | 22 |
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Specifications |
| Specification Value |
______ psf, as well as a ______ seismic
load. The fan deck and hot water basin covers shall be designed for 50 psf live load or a 200 lb. concentrated load.
Guardrails, where specified, shall be capable of withstanding a 200 lb. con- centrated live load in any direction, and shall be designed in accordance with OSHA guidelines.
Multicell Basin Equalizer Outlets:
11.1Add the following paragraph in the Access section: A hole and bolt circle shall be provided in the depressed sec- tion of the basin for equalizer piping between cells. A
Basin Sweeper Piping:
11.1Add the following paragraph in the Access section: The cold water basin shall be equipped with PVC sweeper piping with plastic eductor nozzles.
The piping should create a grid under the fill and force all dirt and debris to the depressed section of the collection basin.
Extended Geareducer Lube Line with Dipstick:
6.1Add the following paragraph in the Mechanical Equipment section: An external oil level dipstick shall be locat- ed adjacent to the motor at the fan deck surface and shall be accessible from a portable maintenance ladder.
■Used as water level equalizers between multicell towers. Not intended for water migration. Piping and attachment hardware by others. Flat faced flange required.
■PVC sweeper piping and Lakos nozzles. Designed for the following flows at 20 psig:
NC8301 thru NC8304, 33m3/h NC8305, 47m3/h
NC8306 thru NC8312, 64m3/h
■The dipstick option is accessible from a portable maintenance ladder on one and two cell towers only. Maintenance considerations recom- mends this option be combined with the ladder and guardrail option on installations of three or more cells since the dipstick cannot be reached without accessing the fan deck.
