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1. Use this bulletin for preliminary layouts only. Obtain current drawings
from your Marley sales representative or your local distributor.
2. Purchaser to provide tower supports complete with holes and bolts for
anchorage. All supports must be framed flush and level at top. Maxi-
mum deflection to be 1/360th of span, not to exceed 1/2" (13mm).
3. Maximum weight occurs with basin full to overflow level at shutdown.
Actual operating weight varies with GPM and piping scheme.
4. Wind loads are based on 30 psf and are additive to operating loads.
Reactions due to wind loads exceed those resulting from seismic loads
based on the 1997 UBC code, Zone 4 and an Importance Factor of
1.00 per Section 1634—Towers Not on a Building.
/ Support /
F
5/8"
DIAMETER HOLES
A
G
H
H
L
W
ANCHOR
BOLT
NORMAL
GAUGE
1"
TOWER
COLLECTION BASIN
AIR INLET FACE AIR INLET FACE
1"1"
ANCHOR
BOLT
C
L
C
L
F
L
ANCHOR
BOLT
1"
1"
ANCHOR
BOLT
C
L
C
L
ANCHOR
BOLT
ANCHOR
BOLT
C
L
C
L
G
H
H
W
ANCHOR
BOLT
ANCHOR
BOLT
C
L
C
L
SUPPORT
(BY OTHERS)
TOWER
COLLECTION
BASIN
5/8"
DIAMETER HOLES
TOWER
COLLECTION BASIN
B
NORMAL
GAUGE
MIN. BEARING WIDTH
AT EACH ANCHOR BOLT
2"
SUPPORT
(BY OTHERS)
TOWER
COLLECTION
BASIN
SUPPORTING STEEL PLAN
OPTION ONE
VIEW BSECTION A
SUPPORTING STEEL PLAN
OPTION TWO
Tower
Model
Dimensions
Shipping Weight
lb
Maximum
Operating
lb
Maximun
Operating Load
at Anchor
lb
Wind Load lb
L W F G H
Max. Vertical
Reaction at Anchor
Max. Horizontal
Reaction at Anchor
490A-490B 2'-11
1
⁄2" 3'-4
1
⁄8" 2'-9
1
⁄2" 3'-0" 2
1
⁄16"
437 756
185 180
115
492A-492B 3'-11
1
⁄2" 4'-1
5
⁄8" 3'-9
1
⁄2" 3'-6" 3
13
⁄16"
742 1396
349 355 210
493A-493B 5'-11
1
⁄2" 4'-1
5
⁄8" 5'-9
1
⁄2" 3'-6" 3
13
⁄16"
982
1995 499 525
285
494A-49B 5'-11
1
⁄2" 5'-6
1
⁄8" 5'-9
1
⁄2" 5'-0" 3
1
⁄16"
1398
2948 737 555 355
495A-495B 7'-11
1
⁄2" 5'-6
1
⁄8" 7'-9
1
⁄2" 5'-0" 3
1
⁄16" 1758 3853 963 745 470
496A-496B 9'-11
1
⁄2" 5'-6
1
⁄8" 9'-9
1
⁄2" 5'-0" 3
1
⁄16" 2096 4751 1188 1095 640
Models with Vertical Discharge Hood Option
494A-494C 5'-11
1
⁄2" 5'-6
1
⁄8" 5'-9
1
⁄2" 5'-0" 3
1
⁄16" 1798 3348 837 700 515
495A-495B 7'-11
1
⁄2" 5'-6
1
⁄8" 7'-9
1
⁄2" 5'-0" 3
1
⁄16" 2133 4233 1058 745 515
496A-496B 9'-11
1
⁄2" 5'-6
1
⁄8" 9'-9
1
⁄2" 5'-0" 3
1
⁄16" 2596 5251 1313 1095 640
Use this data for preliminary layouts only.
Obtain current drawing from your Marley sales
representative.
The Marley UPDATE web-based selection software
—available at spxcooling.com provides
Aquatower model recommendations based on
customer's specific design requirements.