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SIDE ELEVATION
AIR INLET ELEVATION
1. Nominal tons are based upon 95°F HW, 85°F CW, 78°F WB, and
3 GPM/Ton. The Marley UPDATE web-based selection software
provides Aquatower model recommendations based on specific
design requirements.
2. Minimum clearance for adequate air supply. Consult your Marley sales
representative or your local distributor if this clearance is impractical
for your job.
3. Vertical discharge hood is for applications in restrictive enclosures
or other locations where horizontal discharge is not desirable. CTI
Certification does not apply when this option is selected. Available
only on models 494A and larger.
/ Schematic /
USE FOR
STATIC LIFT
L
INLET
C
L
TOWER
OUTLET
C
L
C
L
C
L
TOWER
W
D
S
E
C
B
H
MOTOR
INLET PIPING
(BY OTHERS)
A
SIDE OUTLET
BOTTOM OUTLET
TOWER COLLECTION
BASIN
VERTICAL
DISCHARGE
(OPTION-NOTE 3)
4. Motors less than 1 hp are 115/230 volt, single-phase TENV. 1 hp
through 7.5 hp motors are 230/460 volt, 3-phase TEFC. See page 10
for optional motor sizes on Models 490B through 492A.
5. Motor, belt and belt guard ship uninstalled. Installation by others.
6. Outlet sizes shown are side outlets. All models except 490A and 490B
have connections for both side and bottom outlet. Install the desired
connection and seal the unused opening with the coverplate provided.
Pump suction should use side outlet. See page 9 for size and flow
capacities of bottom outlets.
7. Overflow is a 2" F connecton located in side of collection basin.
8. Drain is a 2" F connection located in collection basin floor.
9. Makeup valve connection is 3/4" M located in tower side.
Tower
Model
Nominal Tons
note1
Dimensions
Motor
hp
Piping
Connection
L W H A B C note 2 D E S
Inlet
Outlet
note 6
490A 8 2'-11
1
⁄2" 4'-2
7
⁄8" 5'-3
3
⁄8" 1'-3
13
⁄16" 6
7
⁄8" 2'-0"
note 3 note 6
4'-4"
1
⁄3
2" 2" F
490B 10 2'-11
1
⁄2" 4'-2
7
⁄8" 5'-3
3
⁄8" 1'-3
13
⁄16" 6
7
⁄8" 2'-0" 4'-4" 1 2" 2" F
492A 22 3'-11
1
⁄2" 5'-0
3
⁄4" 7'-4
1
⁄2" 1'-5" 9
1
⁄2" 4'-0"
note 3
8" 6'-5" 1 4" 4" M
492B 28 3'-11
1
⁄2" 5'-0
3
⁄4" 7'-4
1
⁄2" 1'-5" 9
1
⁄2" 4'-0" 8" 6'-5" 2 4" 4" M
493A 36 5'-11
1
⁄2" 5'-1" 7'-4
1
⁄2" 1'-5" 9
1
⁄2" 5'-0"
note 3
8" 6'-5" 2 4" 4" M
493B 42 5'-11
1
⁄2" 5'-1" 7'-4
1
⁄2" 1'-5" 9
1
⁄2" 5'-0" 8" 6'-5" 3 4" 4" M
494A 51 5'-11
1
⁄2" 6'-5
5
⁄8" 9'-0" 1'-11
15
⁄16" 11
1
⁄2" 6'-0" 10'-8" 9
1
⁄4" 7'-10
1
⁄2" 2 6" 6" MC
494B 57 5'-11
1
⁄2" 6'-5
5
⁄8" 9'-0" 1'-11
15
⁄16" 11
1
⁄2" 6'-0" 10'-8" 9
1
⁄4" 7'-10
1
⁄2" 3 6" 6" MC
494C 68 5'-11
1
⁄2" 6'-5
5
⁄8" 9'-0" 1'-11
15
⁄16" 11
1
⁄2" 6'-0" 10'-8" 9
1
⁄4" 7'-10
1
⁄2" 5 6" 6" MC
495A 80 7'-11
1
⁄2" 6'-5
3
⁄4" 9'-0" 1'-11
15
⁄16" 11
1
⁄2" 7'-0" 10'-8" 9
1
⁄4" 7'-10
1
⁄2" 5 6" 6" MC
495B 91 7'-11
1
⁄2" 6'-5
3
⁄4" 9'-0" 1'-11
15
⁄16" 11
1
⁄2" 7'-0" 10'-8" 9
1
⁄4" 7'-10
1
⁄2" 7
1
⁄2 6" 6" MC
496A 111 9'-11
1
⁄2" 6'-6
1
⁄8" 9'-8
1
⁄4" 1'-11
3
⁄16" 11
1
⁄2" 9'-0" 10'-11
11
⁄16" 9
1
⁄4" 8'-7" 5 6" 6" MC
496B 126 9'-11
1
⁄2" 6'-6
1
⁄8" 9'-8
1
⁄4" 1'-11
3
⁄16" 11
1
⁄2" 9'-0" 10'-11
11
⁄16" 9
1
⁄4" 8'-7" 7
1
⁄2 6" 6" MC