About TECA TABLE OF CONTENTS What We Stand On TECA’s fundamental purpose is to provide world-class products of superior quality. Our goal is to continue setting the standard in thermoelectric cooling by monitoring and improving our operations to meet our customers’ needs and exceed their expectations. A former division of Borg-Warner, TECA was spun-off as an independent company in 1984. We can fulfill all of your cooling requirements, whatever your application. In fact, our engineers may have already developed a solution for an application similar to yours. We offer complete engineering services,...

Thermoelectric Technology The Peltier Effect Thermoelectric cooling, is a solid-state method of heat transfer through dissimilar semiconductor materials. It is also called “the Peltier Effect” after the French watchmaker who discovered the phenomenon in the early 19th century. Like their conventional refrigeration counterparts, thermoelectric cooling systems obey the basic laws of thermodynamics. However, the actual system for cooling is different. In a conventional refrigeration system, the main working parts are the evaporator, condenser, and compressor. The evaporator surface is where the...

Product Notes Applications General Product Part Numbering Notes: TECA builds both air cooled and liquid cooled products. The model numbers of the products (example: AHP-1200XMHC) can be very descriptive of the product. Air cooled air conditioners (prefix AHP and FHP) use fans and finned heat sinks to transfer heat. Liquid cooled products (prefix LHP) require a flow of water or cooling fluid to dissipate the heat. Within air conditioners, suffixes such as XE, X, XM, CXP, EP, and XP relate to environment. Additionally, most product families offer a selection of DC or AC voltages and temperature...

Air Conditioner Notes Things you need to know to start sizing an air conditioner: Temperatures: The ambient is the air temperature around the enclosure (also referred to as operating temperature), often the room temperature. The enclosure temperature or the interior temperature is the temperature range you wish to maintain inside the enclosure. The difference between the two is the design temperature differential (delta T). Look at these temperatures with care. What is the real maximum ambient? What is the real maximum allowable enclosure temperature? How can I define these? Ask maintenance or...

Air Conditioner Applications AERONAUTICS: A leading military and aeronautics contactor needed a cooling solution for an enclosure which would be on a high altitude vessel. The system would be exposed to high winds and ambient elements present in the altitude. Working with the customer; TECA’s sales and engineering team designed a cooling solution with specific intake and exhaust characteristics along with custom paint and a finish process that could withstand the conditions to which the system is exposed. COOLING GLOVE BOXES: A customer manufactures a range of glove box systems for atmosphere...

Ratings and Performance Curves Understanding Ratings Thermoelectric Modules: Traditionally thermoelectric modules have been rated at two points under two conditions. The first point is the maximum load (Qmax) at zero degrees delta T (dT=0) and the second point is the maximum delta T (dTmax) at a no load (Q=0). The load is defined as the amount of energy removed from the cold side ceramic. The delta T is defined as the temperature difference between the cold side and hot side ceramics. Extensive curves showing the performance under other conditions are often available. Thermoelectric systems:...

Ratings and Performance Curves Different Performance Curves Inlet temperature at the evaporatorfencInsure temperature) MOUNTING STYLE ENVIRONMENTS SERVED Inlet temperature at the condenser, °C (Ambient Temperature)

AHP-6263 Air Conditioner/Heat Exchanger Air Cooled Through Mounted Nema-12, 4, 4X 3 Phase, 240 VAC, 3 Wire Delta High Capacity 5660 - 6000 BTU/HR High capacity thermoelectric design Power saving air to air heat exchanger (ECO-mode) Heavy duty full perimeter mounting Lower profile intrusion into enclosure Central input cord for easy mounting Closed loop design Condensate control and evaporation system Increased efficiency at higher ambients by as much as 10% Virtually maintenance free No compressor Environmentaly friendly and safe Stainless Steel exterior housing Mounts and operates in any orientation...

Cooling Capacity (BTU/HR} Cooling Capacity (Watts) Equation of line: y=AT(°C) x=Capacity (Watts) Ambient Temp Cold Sink MOUNTING STYLE Through Mounted ENVIRONMENTS SERVED RATING (TRADITIONAL) External Hot Side Fans Mounting Surface- Dimensions do not include hardware Mounting hardware and gasket included but not shown Dimension: Inches [Millimeters] -Internal Cold Side Fans Mounting Cutout

AHP-6253 Air Conditioner/Heat Exchanger Air Cooled Through Mounted Nema-12, 4, 4X 3 Phase, 240 VAC, 3 Wire Delta High Capacity 5080 BTU/HR High capacity thermoelectric design Power saving air to air heat exchanger (ECO-mode) Heavy duty full perimeter mounting Lower profile intrusion into enclosure Central input cord for easy mounting Closed loop design Condensate control and evaporation system Increased efficiency at higher ambients by as much as 10% Virtually maintenance free No compressor Environmentaly friendly and safe Stainless Steel exterior housing Mounts and operates in any orientation...

Cooling Capacity (BTU/HR) Cooling Capacity (Watts) Equation of line: y=AT(°C) x=Capacity (Watts) Ambient Temp Cold Sink MOUNTING STYLE Through Mounted ENVIRONMENTS SERVED RATING (TRADITIONAL) External Hot Side Fans Mounting Surface- Dimensions do not include hardware Mounting hardware and gasket included but not shown Dimension: Inches [Millimeters] Dircuit Breaker -Input Cord Internal Cold Side Fans Mounting Cutout

AHP-6252 Air Conditioner/Heat Exchanger Air Cooled Through Mounted Nema-12, 4, 4X 240 VAC Input High Efficiency 5200 BTU/HR High capacity thermoelectric design Power saving air to air heat exchanger (ECO-mode) Heavy duty full perimeter mounting Lower profile intrusion into enclosure Central input cord for easy mounting Closed loop design Condensate control and evaporation system Increased efficiency at higher ambients by as much as 10% Virtually maintenance free No compressor Environmentaly friendly and safe Stainless Steel exterior housing Mounts and operates in any orientation Integral temperature...