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Sigma F Series Cooling Tower
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Engineering Data : Schematic
4
H
B
TOP OF
FAN CYLINDER
BASE OF
TOWER COLUMNS
FAN DECK
13'-6"
NOTE
1 Use this bulletin for preliminary layouts only. Obtain current
drawings from your Marley representative.
2 All table data is per cell.
3 All tower installations require a minimum of 4'-0" from cen-
terline of tower endwall column to any vertical obstruction at
tower ladder location. Ladder can be located at any corner of
the fan deck. Ladder extends 8
3
⁄8" below the base of tower
columns on applications with a stainless steel cold water basin.
Ladder stops at top of basin curb wall on applications with a
concrete basin.
Tower installations with an elevation 20'-0" or more from the top
of the fan deck to grade or roof level require a safety cage on
the tower ladder in compliance with OSHA standards. Marley
ladder safety cages are available as an option.
Use this data for preliminary layouts only.
Obtain current drawing from your Marley sales
representative.
The UPDATE web-based selection software
— available at spxcooling.com — provides
Sigma F Series model recommendations based
on customer's specific design requirements.
W OUT-TO-OUT OF TOWER
A BAYS AT 4'-0" = L
C
DIAMETER FAN
3"3"
COLUMNCOLUMN
C
L
C
L
COLUMN
C
L
Tower
Model
Dimensions
W L H A B C
F1211 29'-2" 16'-0" 19'-6" 4 6'-0" 144"
F1221 31'-2" 16'-0" 20'-6" 4 7'-0" 168"
F1231 31'-2" 20'-0" 20'-6" 5 7'-0" 168"
F1241 31'-2" 24'-0" 20'-6" 6 7'-0" 168"
F1251 35'-2" 24'-0" 20'-6" 6 7'-0" 216"
F1261 35'-2" 28'-0" 20'-6" 7 7'-0" 216"
TOWER PLAN
ENDWALL ELAVATION