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AA-150-24-44-LK-XX
Outdoor Thermoelectric Cooler Assemblies
With Bi-Polar Thermostatic Control
THERMOELECTRIC COOLING UNITS FOR OUTDOOR ENCLOSURES AND KIOSKS
The AA Outdoor Cooler Series is an Air-Air Thermoelectric Assembly (TEA) that uses
impingement flow to transfer heat. It offers dependable, compact performance by cooling or
heating enclosures via convection. A bi-polar thermostatic controller with predetermined set
points is integrated into the TEA. The unit is programmed to cool when the temperature inside
the enclosure exceeds 25°C, and heat when the internal temperature drops below 10°C.
This product series has been designed to pass rigorous Telcordia test requirements conducted
by our customers, such as earthquake resistance, salt fog, wind-driven rain, high temperature
exposure and dust contaminants. This is due to the selection of world-class components
such as brand name fans with the highest degree of environmental protection and lifetime
guaranteed waterproof connectors, heavy duty anodization on the high-density heat sinks,
overheat protection, and double environmental seals for the thermoelectric modules (TEMs).
FEATURES AND BENEFITS
• 150W capacity rated at ΔT = 0ºC, ambient = 32°C
• Wide operating temperature range of -40°C to +55°C
• TelcordiaGR-487-COREtestedandveriedbycustomerswhenintegrated
in telecom outdoor enclosures
• Gaskets, connectors, and fans provide a NEMA 4 seal for the enclosure
• UL 60950 and UL 50 approval obtained by customers when integrated in
telecom outdoor enclosures
• Environmentally friendly solid-state operation – no compressor or CFC refrigerants
• Bi-polar thermostatic control (cooling mode > 25°C / heating mode < 10°C)
APPLICATIONS
• Outdoor telecom enclosures
• Outdoor kiosks and displays
• Harsh condition electronic cabinets
• Battery cabinets
Americas: +1.888.246.9050
Europe: +46.31.704.67.57
Asia: +86.755.2714.1166
CLV-customerservice@lairdtech.com
www.lairdtech.com/thermal
SPECIFICATIONS AA-150-24-44-LK-XX
Technical
Technology Thermoelectric modules, forced air, closed loop (non-mixing), lterless, non-refrigerant
Cooling at dT = 0°C, and nominal / oat voltage.1143/159W (488/543 Btu/h)
Heating 2 150W (512 Btu/h)
Voltage (nominal / maximum) 24/28 VDC
Grounding (all voltages) Positive or negative
Current draw, ±10% (nominal / startup) 7.9/10.0 A (24V version)
Weight 5.1 kg (11.2 lbs)
Panel mounting Through
Fan life (L10 at +40°C) ≥70,000 hours
Number of connectors 1
Connector type
(on unit / mating side)
On unit: AMP part number: 350777-1, 794269, 350547-6, 794270-1
Mating side: AMP part number : 350778-1, 350550-6, 794270-1
Hi-pot testing 707 VDC
Environmental
Temperature range 3 (external ambient) -40°C to +55°C (-40°F to +131°F)
Temperature range (internal enclosure) -20°C to +55°C (-4°F to +131°F)
Overheating thermostat 80°C ± 3°C (Hot and cold side heat sink surfaces)
Degree of protection, enclosure 4 NEMA 4 (IP55)
Degree of protection, unit 5 IP54
Sound level (1m distance) 58 dB(A)
Over-Temp Thermostat (hot and cold side heat sink) 80°C ± 3°C
LK-81 Bi-Polar Controller
Regulation On / Off
Thermostatic control set point Cooling 25°C +/- 2°C, Heating 10°C +/-2°C
Hysteresis 3°C
Low voltage disconnect/reconnect (LVD/LVD-R) 22.5/24.8V +/- 0.5V
1) Cooling capacities at nominal / oat voltage are rated at external temperatures of 32°C and 46°C respectively. Float voltage is dened at 27 VDC.
2) Heating capacity is rated at external temperature of -40°C, nominal voltage, and dT = -45°C.
3) Controller function shall not operate the external fan during heating mode.
4) The highest environmental protection level requires an external shroud and is dened as the protection level for the enclosure.
5) Rating for unit without protective shroud.
Note: The specied performance of any Laird Technologies cooling unit is dependent on how it is handled and incorporated into the nal product. This includes elements such
as the system design, insulation design, and assembly method. While Laird Technologies is able to provide general guidelines based upon our experience, it is ultimately
the responsibility of the device manufacturer to validate each product and its performance for its intended use.
PERFORMANCE Qc VS ΔT
02052510 3015 35 40
Qc (W)
dT (°C)
160
140
120
100
80
60
40
20
0
AA-150-24-44-LK-XX
Outdoor Thermoelectric Cooler Assemblies
With Bi-Polar Thermostatic Control
ISOMETRIC DRAWINGS
MOUNTING HOLE LOCATION
Cold Side
Warm Side
AA-150-24-44-LK-XX 0613
Any information furnished by Laird Technologies, Inc. and its agents is believed to be accurate and reliable. All specifications are subject to change without notice. Responsibility for the use and application of Laird Technologies materials rests
with the end user, since Laird Technologies and its agents cannot be aware of all potential uses. Laird Technologies makes no warranties as to the fitness, merchantability or suitability of any Laird Technologies materials or products for any
specific or general uses. Laird Technologies shall not be liable for incidental or consequential damages of any kind. All Laird Technologies products are sold pursuant to the Laird Technologies’ Terms and Conditions of sale in effect from time
to time, a copy of which will be furnished upon request. © Copyright 2010 Laird Technologies, Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Technologies Logo, and other marks are trade marks or registered trade marks of Laird
Technologies, Inc. or an affiliate company thereof. Other product or service names may be the property of third parties. Nothing herein provides a license under any Laird Technologies or any third party intellectual property rights.
WIRING SCHEMATIC
330 ± 30
Electrical connections
K1 Power to Bi-Polar Controller
P1 Positive (Red)
P2 Negative (Black) Marked -24VDC
AA-150-24-44-LK-XX
Outdoor Thermoelectric Cooler Assemblies
With Bi-Polar Thermostatic Control