DC/DCS

Oil Coolers SERIES

▲

New DCS Dual Fan models for

45HP and 60HP cooling performance
▲

All DC/DCS and Dual Fan models

available with internal pressure bypass
▲

DC Motor Driven Cooling Fans

Are A Low Cost Solution To
Remote Cooler Mounting
Requirements.
▲

DCS Models include a

shroud between the cooler
and fan to enhance performance.
▲

Competitive Pricing, Deliveries

From Stock.
▲

Optional New Temperature Controller

or Existing Temperature Switch Cycles
Cooling Fan To Maintain Desired Oil
Temperature

THERMAL SYSTEMS, INC. BULLETIN DCB-4

Selection Procedures
The performance curves above are based on the following: STEP 4. Select The Model From The Curves
• 50 SUS Oil. Read up from the GPM to the required heat
• 100°F Entering Temperature Difference (ETD) rejection. Select any model on, or above this
point.
If your application conditions are different, use the following
selection procedure: STEP 5. Calculate Oil Pressure Drop
Find the oil pressure drop correction factor and
STEP 1. Determine the Heat Load multiply it by the oil pressure drop found on the
Horsepower Heat x 2545 = BTU/hr performance curve.

STEP 2. Determine the Actual ETD Desired

Entering OIL Temperature — Entering AIR Temperature = ETD
The entering oil temperature is the highest desired oil temperature.
The entering air temperature is the highest anticipated ambient air
temperature, plus any pre-heating of the air prior to its entering the
cooler. This is especially important if air is drawn from the engine
compartment for cooling.

STEP 3. Calculate the Adjusted BTU/hr for Selection

BTU/hr 100 BTU/hr For Use

x = With Selection Chart
Heat Load Desired ETD

Features
▼ ▼ ▼▼ ▼ ▼ ▼ ▼

New Dual Fan Models

Internal Pressure Bypass available
for all models
Advanced Technology Designs
Leak Free SAE O-Ring Connections
Rugged Bar & Plate Design
Reduced Air Side Fouling
Wide Selection of Standard Models
Sturdy Long Life DC Fan Motors with
Packard connections
Performance

OIL P
= 5 PSI
= 10 PSI
= 25 PSI
= 50 PSI
50 SUS OIL

Note: DCS models with shroud have up to 40% more performance than DC models.

Specifications
RATINGS
MAXIMUM WORKING PRESSURE ...................250 PSI MAXIMUM WORKING TEMPERATURE .....................250 °F

MATERIALS
COOLER .............................................................Aluminum FAN BLADE .....................................................................Plastic
FAN GUARD............................................................Plastic MOTOR ...............................................................Painted Steel
SHROUD .......................................Powder Painted Steel
 Dimensions
Standard DC Series

MODEL Amp Draw Approx. Shipping

A B C D E F G H J K L
NUMBER 12V 24V Weight (lbs)

#12 SAE 5.2 2.6

DC-10 13.98 11.73 4.84 9.84 9.96 10.87 4.96 4.49 1.00 19.0
O-Ring 5/16 x 1/2”
#16 SAE slot
DC-16 15.94 13.5 5.04 11.81 11.81 12.76 5.87 5.04 1.14 8.2 4.1 23.0
O-Ring
#20 SAE 7/16 x 3/4”
DC-20 19.69 18.43 5.31 15.75 16.14 17.32 12.00 3.86 1.57 19.0 9.5 28.0
O-Ring slot

*Note: All dimensions in inches.

*Note: We reserve the right to make reasonable design changes without notice.

Ordering Information
DC SERIES MODEL SIZE MOTOR DATA OPTIONS
SELECTED 12 = 12 VOLT TC115 = 115˚F Temperature Sensor Installed
24 = 24 VOLT TC140 = 140˚F Temperature Sensor Installed
AD = SAE to NPT Adaptors Installed
 Dimensions
DCS Series with Fan Shroud

MODEL Amp Draw Approx. Shipping

A B C D E F G H J K L
NUMBER 12V 24V Weight (lbs)

13.98 11.73 6.3 9.84 9.96 10.87 4.96 4.49 #12 SAE 5.2 2.6
DCS-10 1.00 20.0
O-Ring 5/16 x 1/2”
#16 SAE slot
DCS-16 15.94 13.5 6.46 11.81 11.81 12.76 5.87 5.04 1.14 8.2 4.1 25.0
O-Ring
#20 SAE 7/16 x 3/4”
DCS-20 19.69 18.43 7.2 15.75 16.14 17.32 12.00 3.86 1.57 19.0 9.5 31.0
O-Ring slot
#20 SAE 7/16 x 3/4”
DCS-30 23.62 22.13 7.2 19.69 19.84 21.02 15.98 3.86 1.57 19.0 9.5 53.0
O-Ring slot

*Note: All dimensions in inches.

*Note: We reserve the right to make reasonable design changes without notice.

Ordering Information
DCS SERIES MODEL SIZE MOTOR DATA OPTIONS
SELECTED 12 = 12 VOLT TC115 = 115˚F Temperature Sensor Installed
24 = 24 VOLT TC140 = 140˚F Temperature Sensor Installed
AD = SAE to NPT Adaptors Installed
 Dimensions
DC Series with Bypass

Approx.
MODEL AMP DRAW Shipping
NUMBER A B C D E F G H J K L M N P 12V 24V Weight (lbs.)
#12
DC-10 13.98 11.73 4.84 9.84 9.96 10.87 4.96 4.49 1.00 SAE O- 2.99 1.22 4.17 5.2 2.6 20.5
Ring 5/16 x 1/2”
#16 slot
DC-16 15.94 13.5 5.04 11.81 11.81 12.76 5.87 5.04 1.14 SAE O- 3.54 3.03 5.98 8.2 4.1 24.5
Ring
#20
DC-20 19.69 18.43 5.31 15.75 16.14 17.32 12.00 3.86 1.57 SAE O- 7/16 x 3.4” 3.54 6.26 10.2 19.0 9.5 29.5
Ring slot

*Note: All dimensions in inches. *Note: We reserve the right to make reasonable design changes without notice.

Ordering Information
DC SERIES MODEL SIZE MOTOR DATA BYPASS DATA OPTIONAL FEATURES
Without Fan Shroud 12 = 12 Volt BPNV = Bypass No Valve TC115 = TC115 Shipped W/Cooler
24 = 24 Volt BP25 = 25 PSI INT Bypass TC140 = TC140 Shipped W/Cooler
BP65 = 65 PSI INT Bypass AD = SAE to NPT Adaptors Shipped W/Cooler
MTG = Foot Mounting Bracket Set
 Dimensions
DCS Series with Bypass

Approx.
MODEL AMP DRAW Shipping
NUMBER A B C D E F G H J K L M N P 12V 24V Weight (lbs.)
#12
DCS-10 13.98 11.73 6.3 9.84 9.96 10.87 4.96 4.49 1.00 SAE O- 2.99 1.22 4.17 5.2 2.6 21.5
Ring 5/16 x 1/2”
#16 slot
DCS-16 15.94 13.5 6.46 11.81 11.81 12.76 5.87 5.04 1.14 SAE O- 3.54 3.03 5.98 8.2 4.1 26.5
Ring
#20
DCS-20 19.69 18.43 7.2 15.75 16.14 17.32 12.00 3.86 1.57 SAE O- 7/16 x 3.4” 3.54 6.26 10.2 19.0 9.5 32.5
Ring slot
#20
DCS-20 23.62 22.13 7.2 19.69 19.84 21.02 15.98 3.86 1.57 SAE O- 7/16 x 3/4” 3.54 8.9 12.83 19.0 9.5 54.5
Ring slot

*Note: All dimensions in inches. *Note: We reserve the right to make reasonable design changes without notice.

Ordering Information
DC SERIES MODEL SIZE MOTOR DATA BYPASS DATA OPTIONAL FEATURES
With Fan Shroud 12 = 12 Volt BPNV = Bypass No Valve TC115 = TC115 Shipped W/Cooler
24 = 24 Volt BP25 = 25 PSI INT Bypass TC140 = TC140 Shipped W/Cooler
BP65 = 65 PSI INT Bypass AD = SAE to NPT Adaptors Shipped W/Cooler
MTG = Foot Mounting Bracket Set
 Dimensions
Standard DCS Dual Fan Series

Approx.
MODEL AMP DRAW Shipping
NUMBER A B C D E F G H J K L M N P 12V 24V Weight (lbs.)
#20
DCS-45 33.46 18.43 7.2 29.53 16.14 17.32 7.87 4.92 1.57 SAE O- 2.99 8.01 13.03 36.2 18.1 65.0
Ring 7/16 x 3/4”
#20 slot
DCS-60 35.43 22.13 7.2 31.49 19.84 21.02 8.86 4.43 1.57 SAE O- 2.99 9.86 16.73 38.0 19.0 109.0
Ring

*Note: All dimensions in inches. *Note: We reserve the right to make reasonable design changes without notice.

Ordering Information
DC SERIES MODEL SIZE MOTOR DATA OPTIONAL FEATURES
With Fan Shroud 12 = 12 Volt TC115 = TC115 Shipped W/Cooler
24 = 24 Volt TC140 = TC140 Shipped W/Cooler
AD = SAE to NPT Adaptors Shipped W/Cooler
MTG = Foot Mounting Bracket Set
 Dimensions
DCS Dual Fan Series with Bypass

Approx.
MODEL AMP DRAW Shipping
NUMBER A B C D E F G H J K L M N P 12V 24V Weight (lbs.)
#20
DCS-45 33.46 18.43 7.2 29.53 16.14 17.32 7.87 4.92 1.57 SAE O- 3.54 6.26 10.2 36.2 18.1 67.0
Ring 7/16 x 3/4”
#20 slot
DCS-60 35.43 22.13 7.2 31.49 19.84 21.02 8.86 4.43 1.57 SAE O- 3.54 8.9 12.83 38.0 19.0 111.0
Ring

*Note: All dimensions in inches. *Note: We reserve the right to make reasonable design changes without notice.

Ordering Information
DC SERIES MODEL SIZE MOTOR DATA BYPASS DATA OPTIONAL FEATURES
With Fan Shroud 12 = 12 Volt BPNV = Bypass No Valve TC115 = TC115 Shipped W/Cooler
24 = 24 Volt BP25 = 25 PSI INT Bypass TC140 = TC140 Shipped W/Cooler
BP65 = 65 PSI INT Bypass AD = SAE to NPT Adaptors Shipped W/Cooler
MTG = Foot Mounting Bracket Set
M404 Temperature
Controller
Optional Temperature
Control Switch
Use these Temperature Switches to control oil temperature by cycling the cooling fan to maintain the desired entering, or leaving
temperature. The Temperature Switches are designed to be installed in the drain ports of the DC Series Coolers, and in the reservoirs or
piping of AC/ACD Series Coolers. Depending on how the cooler is plumbed, it can be used to control the temperature of the oil either
entering, or leaving the cooler.
It is a normally open switch that closes on temperature rise.
Two Models to satisfy a wide range of applications.

Schematic Specifications
Temperature
Switch TC -115 Set Point ...................................................... 115°F
TC -140 Set Point ...................................................... 140°F
Battery Set Point Tolerance ..................................................... ±5°F
Positive Maximum Temperature ............................................ 325°F
FAN Current Rating ..................................... 10 Amps at 12 Volts
5 Amps at 24 Volts
Differential ........................................................ 8° - 16° F
Battery Switch Body ............................................................... Brass
Negative
Housing .................................................................... Nylon

Dimensions Model Numbers

#8-32 Screw Terminals With
1/4" Spade Connections
1.6" Max
41mm
1" Max
25.4mm TC -115
1" Max
25.4mm
TC -140

1.44" Max
3.3" Max
36.5mm
84mm
#8 SAE O-Ring
3/4" - 16 UNF-2B
 Worldwide

AKG has been manufacturing high quality coolers and cooling systems since 1919. We have grown to
include 10 facilities with over 1400 employees to serve you.

Your Business Partner

AKG Worldwide Partnership Customer

AKG is a complete single source sup- AKG believes in solid long-term busi- AKG places heavy emphasis on
ply for all of your cooling require- ness relationships built on partner- development of leading edge tech-
ments. Choose from both standard ships with its customers. nologies, products and finding cre-
and custom engineered products ative solutions to our customers indi-
depending on your specific needs. vidual requirements.

AKG Thermal Systems, Inc. Autokühler GmbH & Co. KG

Mebane Industrial Park Postfach 1346
809 Mattress Factory Road D-34363 Hofgeismar
P.O. box 189 Tel.: 05671 / 8 83-0
Mebane, North Carolina 27302-0189 Fax: 05671 / 35 82
Tel.: (919) 563-4871 Internet: http://www.akg-gruppe.de
Fax: (919) 563-4917 E-mail: Info@akg-gruppe.de