SPX Cooling Technologies Marley Aquatower, Brochure, Page: 4 / 12

4
SIDE ELEVATION
AIR INLET ELEVATION
1. Nominal tons are based upon 35°C HW, 29.5°C CW, 25.5°C WB
and .68 m
3
/hr per 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 CL
TOWER
OUTLET
CL
CL
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 are 400 volt, 3-phase TEFC.
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 cover-
plate 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
note
1
Dimensions
Motor
kW
Piping
Connection
L W H A B C
note 2
D E S
Inlet
Outlet
note 6
490A 8 902 1292 1610 402 175 610
note 3 note 6
1318 .25 2" 2"
F
490B 10 902 1292 1610 402 175 610 1318 .75 2" 2"
F
492A 22 1206 1543 2248 432 241 1219
note 3
203 1956 .75 4" 4"
M
492B 28 1206 1543 2248 432 241 1219 203 1956 1.5 4" 4"
M
493A 36 1816 1549 2248 432 241 1524
note 3
203 1956 1.5 4" 4"
M
493B 42 1816 1549 2248 432 241 1524 203 1956 2.2 4" 4"
M
494A 51 1816 1972 2743 608 292 1829 3251 235 2403 1.5 6" 6"
MC
494B 57 1816 1972 2743 608 292 1829 3251 235 2403 2.2 6" 6"
MC
494C 68 1816 1972 2743 608 292 1929 3251 235 2403 3.7 6" 6"
MC
495A 80 2426 1975 2743 608 292 2134 3251 235 2403 3.7 6" 6"
MC
495B 91 2426 1975 2743 608 292 2134 3251 235 2403 5.5 6" 6"
MC
496A 111 3035 1984 2953 589 292 2743 3345 235 2610 3.7 6" 6"
MC
496B 126 3035 1984 2953 589 292 2743 3345 235 2610 5.5 6" 6"
MC