Thermal Transfer Systems AOL User Manual
FLUID COOLING | Industrial AOL Series
BRAZED ALUMINUM CONSTRUCTION
HYDRAULIC OR
COMPRESSOR OIL COOLING
Features
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Large Oil Flow
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High Performance
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Industrial Duty
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AIR COOLED AOL
Brazed Aluminum Bar and Plate Core
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Compact all aluminum core assembly
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Ideal for converting water cooled
equipment to air cooled
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Eliminates high water and sewer costs
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Eliminates corrosion problems
associated with water cooled units
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Vertical air flow works well for
heat recovery
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State-of-the-art heat transfer
technology
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Hydraulic motors available
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Optional SAE Ports
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Marine corrosion control coatings
available
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High performance air side fin design
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Detachable legs
Ratings
Maximum Operating Pressure
250 psi (17 BAR)
Maximum Operating Temperature
300° F (150° C)
Materials
Legs Steel with baked enamel finish
Shroud Steel
Standard Core Brazed Aluminum Bar and Plate
n
Tanks – 5052 Aluminum
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Nose Bar & Little Bar – 3003-H Aluminum
n
Air Fin, Plate, Turbulator & End Plate –
3003-O Aluminum
Fan Aluminum Hub, Plastic Blades
Motor T E F C
AOL
How to Order
AOL
Model
Series
AOL - Standard
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50
– – –
Model Size Selected
400
725
950
1200
1600
2000
2500
3000
3500
Specify Mo tor
Required
0 - No Motor
2 - Single Phase
3 - Three Phase
6 - 575 Volt
9 - Hydraulic
18 - IEC Thr ee Phase
Connection
Type
Blank - NPT
S - SAE
–
Noise L evel
Blank - Standard
Noise Level
LN - Low
Noise Level
Dimensions
1.77
(44.96)
1.77
(44.96)
5/8 DIA.
4 PLACES
A
D
K
E
C
G
B
F
N TYP
“H” IN OR OUT OPTIONAL
VENT/DRAIN
PLUG
“H” IN OR OUT OPTIONAL
AIR FLOW
Net Shipping
D H H Weight Weight
Model A B C Approx. E F G NPT SAE J K L Lbs. Lbs.
AOL-400 34.20 17.96 22.69 20.86 30.00 13.96 18.69
(868.68) (456.18) (576.33) (529.84) (762.00) (354.58) (474.73) (150.62) (46.99) (31.75) (49.44) (67.13)
AOL-725 34.20 22.37 30.57 20.86 30.00 18.37 26.57
(868.68) (568.20) (776.48) (529.84) (762.00) (466.60) (674.88)
AOL-950 36.01 26.78 37.25 23.62 30.00 33.25
(914.65) (680.21) (946.15) (599.95) (762.00) 22.78 (844.55)
AOL-1200 36.01 26.78 41.20 25.51 30.00 (578.61) 37.20
(914.65) (680.21) (1046.48) (647.95) (762.00) (944.88) (152.40) (70.10) (31.75) (134.26) (195.04)
AOL-1600 36.01 34.89 41.20 27.51 30.00 30.89 37.20 8.00 2.76 1.25 355 515
(914.65) (886.21) (1046.48) (698.75) (762.00) (784.61) (944.88)
AOL-2000 36.01 37.88 51.05 26.25 30.00 33.88 47.05
(914.65) (962.15) (1296.67) (666.75) (762.00) (860.55) (1195.07)
AOL-2500 36.01 43.70 49.08 28.51 30.00 39.70 45.08
(914.65) (1109.98) (1246.63) (724.15) (762.00) (1008.38) (1145.03) (203.20) (70.10) (31.75) (251.74) (297.10)
AOL-3000 36.01 52.52 51.05 30.51 30.00 48.52 47.05
(914.65) (1334.01) (1296.95) (774.95) (762.00) (1232.41) (1206.50) 4 Bolt FLG. (203.20) (70.10) (31.75) (328.40) (374.21)
AOL-3500 36.01 56.30 51.05 30.51 30.00 52.30 47.05
(914.65) (1430.02) (1296.95) (774.95) (762.00) (13328.42 (1206.50) (203.20) (70.10) (31.75) (344.73) (390.09)
Note: We reserve the right to make reasonable design changes without notice. All dimensions are in inches and (millimeters).
5.93 1.85 1.25 109 148
2.00
5.88 1.85 1.25 151 170
2.00
2.00
6.00 2.76 1.25 296 430
2.00
2.50
2.50
(203.20) (70.10) (31.75) (218.63) (263.99)
8.00 2.76 1.25 555 655
3.00
3" SAE 8.00 2.76 1.25 724 825
3.00
8.00 2.76 1.25 760 860
3.00
(149.35) (46.99) (31.75) (68.49) (77.11)
#32 SAE
2-1/2-12
6.82 2.76 1.25 221 300
UN-2B
(173.23) (70.10) (31.75) (100.24) (136.08)
(203.20) (70.10) (31.75) (161.03) (233.60)
2-1/2 SAE
4 Bolt FLG
8.00 2.76 1.25 482 582
AIR COOLED AOL
Selection Procedure
Performance Curves based on 100°F (55.56°C) E.T.D. or Entering
Temperature Difference (E.T.D = Entering oil temperature minus ambient
air temperature). SAE #10 oil @ 200°F (93.33°C).
Oil pressure drop coding:
X = 5 PSI (.345 BAR)
l = 10 PSI (.689 BAR)
= 15 PSI (1.03 BAR)
s = 20 PSI (1.38 BAR)
n = 30 PSI (2.10 BAR)
E.T.D. temperature correction formula:
ENGLISH Version
100
HP
Curve = HP To Be Removed X Desired E.T.D
METRIC Version
KW = Heatload (KW)
—— — ———— ——
°C Desired E.T.D. (°C)
Conversion
Hp =
KW =
——
X .745 X E.T.D. (°F)
°C
Notes
1. A three-way thermostatic valve is recommended to bypass the cold oil
around the heat exchanger during start up.
2. Support piping as needed. Flexible connectors must be properly installed
to validate warranty.
3. Coolers should not operate in ambient temperatures below 35°F (1°C).
Consult factory for recommendations.
4. The fan cannot be cycled.
5. AOL coolers operated outdoors must be protected from weather.
Consult factory for recommendations.
6. If duct work or additional static resistance is added to the cooler
airstream, an auxiliary air mover may be required.
7. Can be mounted for horizontal air flow, with oil in at bottom port.
Maintenance
Periodic cleaning of the fins with compressed air is needed to remove the
accumulation of dirt and dust. If the inside of the tubes need to be cleaned of
oil and carbon, use a chlorinated solvent. Do not use strong solvents. Do not
use acids or caustic cleaners.
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AOL
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