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Products
A+ Series® Air Coolers - Industrial Air Coolers - A+L
High-Capacity Industrial Evaporator
Designed for medium to large industrial refrigeration applications, Colmac Coil A+L Air Coolers deliver high-capacity cooling, flexible air distribution, and durable construction for demanding refrigerated environments. Available in capacities from 5 to 100 TR, the A+L features a high-profile design with a modular “plug-in” fan section that can be configured for horizontal, 45° down, or penthouse air discharge.
Each A+L is engineered around the specific refrigeration, airflow, construction, and installation requirements of the application, providing dependable performance for cold storage, food processing, distribution, and other industrial refrigeration facilities.
Defrost Options
Air
Hot Gas
Electric
Fan Options
EC Fans
High-efficiency EC fans with integrated speed controllers available in multiple sizes and performance configurations. Composite fan blades standard. Power range from 2.67 kW – 3.5 kW.
AC Fans
Robust and versatile AC fan systems with motor sizes ranging from 0.75 hp to 15 hp and fan diameters from 30” to 42”. Available with composite or aluminum fan blades.
Applications
Cold Storage Warehouses
Food Processing
Meat & Poultry Processing
Seafood Processing
Refrigerated Distribution Centers
Dairy Processing
Prepared Foods
Blast Freezers
Blast Chillers
Produce Processing
Materials of Construction
Tube Material
Aluminum
304 stainless steel tubing
316 stainless steel tubing
Fin Material
Aluminum
Epoxy coated aluminum
304 stainless steel
316 stainless steel
Casing Material
G-235 galvanized steel
304 stainless steel
316 stainless steel
Features & Upgrades
Plug-In Fan Section
A modular fan section allows the A+L to be configured for horizontal, 45° down, or penthouse air discharge to suit the building layout and air distribution requirements.
Hinged Fan Panels
Standard hinged fan panels provide convenient access to fans and internal components for inspection and maintenance.
Triple-Sloped Drain Pan
Designed to promote positive drainage and minimize standing water
Low-Charge DX Ammonia
A+L units can be configured for low-temperature direct expansion ammonia systems designed to reduce refrigerant charge while maintaining efficient evaporator performance.
VFD Controls
Variable frequency drive (VFD) controls available for AC fan configurations to improve energy efficiency, reduce sound levels, and optimize airflow based on cooling demand.
Resources
Certifications & Warranties
ASME "U" Stamp
ASME Section VIII requirements for pressure-containing equipment
CRN/CSA
Canadian Registration Number (CRN) and CSA certifications available for applications requiring compliance with Canadian pressure vessel and refrigeration equipment regulations
UL 207
UL 207 standards for refrigerant-containing components and accessories, verifying compliance with recognized refrigeration system safety requirements.
Warranty
Colmac Coil warrants its products to be free from defects in materials and workmanship under normal operating conditions. Standard warranty coverage includes repair or replacement of defective components in accordance with Colmac warranty terms. Pressure-bearing stainless steel coil components manufactured in accordance with ASME B31.5 are eligible for extended warranty coverage of up to five years from shipment date.