Tunnel Series AAT-085-24-22-00-00 Air-to-Air Thermoelectric Assembly The Tunnel Series Air-to-Air thermoelectric assembly is a thermoelectric based air conditioner designed to temperature control small chambers used in analytical and medical diagnostic instruments. The unique design offers premium fans pushing air across-high density heat sinks to minimize the number of air flow paths required to operate. The design utilizes custom thermoelectric modules to maximize cooling capacity with a high coefficient of performance. Moisture resistant insulation is used to keep condensation from penetrating the TEM cavity. The units operate on DC and are designed for an indoor lab use environment. Laird Part Number: 387000899 Americas: +1.919.597.7300 Europe: +46.31.420530 FEATURES APPLICATIONS Asia: +86.755.2714.1166 • Compact form factor • Analytical storage ets.sales@lairdtech.com compartment temperature • Improved sealing for moisture www.lairdtech.com protection control • Medical diagnostic chamber • Reliable solid-state operation • RoHS compliant refrigeration SPECIFICATIONS TEA Model AAT,085,24,22,00,00 Heat Transfer, Cold Side Air Heat Transfer, Hot Side Air Cooling Power 85 W @ ΔT=0°C and Ta=35°C, Tolerance ± 10% TEM Input Power Voltage, Nominal 24 VDC Current, Nominal 4.2 Amps @ Δ T=0°C Fan Input Power Hot side Fan Voltage, Nominal 24 VDC Hot side Fan Current, Nominal 0.46 Amps Cold side Fan Voltage, Nominal 24VDC Cold side Fan Current, Nominal 0.33Amps Dimension (L x W x H) 248 x 82.5 x 153.5 mm Weight 2.5kg Operating Temperature -10°C to 50°C Packaging Individual cardboard box Page 1 of 4 AAT-085-24-22-00-00 PERFORMANCE CURVES TEA performance at Th = 35°C Qc vs dT 90 80 70 60 50 40 30 20 10 0 0 5 10 15 20 25 30 dT (°C) Page 2 of 4 Qc (W) AAT-085-24-22-00-00 ISOMETRIC DRAWINGS ELECTRICAL CONNECTIONS RECEPTICLE PLUG OBJECT WIRE TYPE COLOR TERMINAL HOUSING POLE HOUSING TEM + Red 1 AWG #18 TEM - Black 2 TE TE FAN COLD SIDE + Purple TE Connectivity 3 Connectivity Connectivity FAN COLD SIDE - Blue 1-480704-0 4 AWG#20 350547-1 1-480705-0 FAN HOT SIDE + White 5 FAN COLD SIDE - Green 6 Page 3 of 4 AAT-085-24-22-00-00 INSTALLATION INSTRUCTIONS 1. Mount with “hot side” external to chamber wall. 2. Cutout should be approximately 210 x 67 mm. 3. Unit should be fastened as shown in diagram with gasket material sealing around cutout. 4. For operation below dew point, recommend to position unit in vertical direction with wires facing down to allow for condensation to run off of unit. Drip tray may be required to collect moisture from surfaces at temperatures below dew point. 5. TE should not be used as part of the structure and is recommended to be protected from external forces. 6. The input power to TEA should be protected with fuse. Fuse rating should withstand 150% of nominal current rating for 60 seconds. This is valid at Ta=35°C. Fuse ratings for other ambient temperatures (x°C) can be calculated with the formula I [x°C] = I [35°C]/(1+0.005*(x-35). This is valid when regulating with an On/Off regulation. At rapid temperature cycling where this is applicable, there can be a need for even higher fuse ratings. 7. Max ripple current on supply power should be ≤ 5%. 8. Switching power to TEMs at frequencies between 0.01Hz to 5KHz may degrade reliability and shorten life. SERVICE • Units are generally maintenance free, however occasionally it is recommended to clean the heat sinks and fans of debris. This is best done with compressed air. LAIRD-TS-AAT-085-12-22-00-00-DATA-SHEET-101217 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. Laird Technologies makes no warranties as to the fitness, merchantability, suitability or non-infringement 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 2017 Laird Technologies, Inc. All Rights Reserved. Laird, Laird Technologies, the Laird Technologies Logo, and other marks are trademarks or registered trademarks 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. Page 4 of 4