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Specification Value
Marley
/
NC Class Stainless Cooling Tower
/
Specifications: Options
22
______ 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:
11.1 Add 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 full-face, .25" thick, 50
durometer gasket shall be provided at
each equalizer location.
Basin Sweeper Piping:
11.1 Add 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:
6.1 Add 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, 33m
3
/h
NC8305, 47m
3
/h
NC8306 thru NC8312, 64m
3
/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.