CAT
CAT
Cooling Only Air Turnover Units
CAT Series Air Turnover units are unique floor mounted cooling only units designed to maintain comfortable room temperatures without a duct distribution system.
CAT units are available with air delivery from 13,000 to 81,000 CFM. Standard DX cooling coil capacities are from a nominal 27 to 148 tons. Standard chilled-water coil capacities are from a nominal 28 to 140 tons.
The CAT utilizes the Air Turnover principle to take advantage of air stratification in buildings with open spaces. It does this by allowing hot air to become trapped at the ceiling. Large volume air movement is provided by energy efficient propeller fans, which turn the room air over 2.5 to 5 times each hour. Continuous air circulation then thoroughly mixes the air to maintain uniform room temperature. This uniform room temperature eliminates the possibility of condensation forming on stored materials because of uneven room temperature.
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AVOIDS MOISTURE DAMAGE
Constant Air Circulation
Air stratification creates problems in spaces that require cooling. Because cool air settles to the floor, higher levels remain too warm. When the temperature is not uniform from floor to ceiling, condensation can form causing moisture damage. An Air Turnover system solves the air stratification problem by continuously circulating the air in the space. It picks up air at the floor, removing the coldest air layer supporting the thermal barrier.
DDC CONTROLS ARE OPTIONAL
Patented Precision
The CAT is capable of more precise temperature control and real time on-board diagnostics thanks to the patented Adaptaire DDC control system (Patent #7,059,536). Interfacing with local networks is made easier since the Adaptaire system supports BACnet, LON, N2, and Modbus.
TOUCHSCREEN INTERFACE OPTION
Convenient Control and Diagnostics
In addition to the precision and sophistication of the Adaptaire DDC control software, Applied Air has implemented a touch screen operator interface for quick access to operating conditions, diagnostics, setpoints, and schedules.
LOWER INSTALLATION COSTS
No Ductwork and Stackable Sections
Air is discharged directly at high velocity. No ductwork is required so installed cost is lower. Additionally, the CAT unit is built in modules that are stacked in the field. Each module has lifting lugs and alignment flanges for faster and lower cost installation.
FLEXIBLE COOLING CHOICES TO SUIT YOUR REQUIREMENTS
Industry Standard Coil Designs
The Applied Air CAT is designed to include two four row (DX) (CW) cooling coils with copper tubes, aluminum fins and galvanized steel casing. The coils are mounted in an “A” coil arrangement with an insulated stainless steel drain pan under each coil. Coil velocities are designed not exceed 550 FPM in order to minimize the risk of moisture carryover.
MULTIPLE BELT-DRIVEN PROPELLER FANS
Efficient Air Movement
Multiple belt driven turbine four bladed energy efficient propeller fans are driven by a three phase high efficiency motor mounted on an adjustable base. The propellers are mounted on heavy duty, turned and ground and polished solid steel shafts designed for a maximum operating speed not to exceed 75% of its first critical speed.
FACTORY MOUNTED AND WIRED VFD OPTIONAL
Match Fan Speed to Load
The already lower operating costs of the CAT unit can be further enhanced with the optional VFD for the supply fans. Building thermal loads can vary widely, especially in very large warehouses and factories that might be operating 24/7. Adding the VFD option to the CAT, and integrating it with the Adaptaire DDC system, can result in significant operating cost savings by matching fan speeds to the demands of the building.
V-BANK FILTERS OPTIONAL
Clean Filtered Air
The Applied Air CAT has the option of a V-bank filter bank for clean tempered air entering the space. The filter bank has racks that will accommodate 2" filters with up to MERV13 ratings.