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Products
A+ Series® Air Coolers - Industrial Air Coolers - A+S
Low-Profile Industrial Evaporator
Designed for small to medium industrial refrigeration applications, Colmac Coil A+S Air Coolers deliver dependable cooling performance in a compact, low-profile configuration. Available in capacities from 2 to 35 TR, the A+S is ideal for refrigerated spaces where ceiling height and installation clearance are limited but industrial-duty construction and performance are still required.
High-efficiency fans, hinged fan panels, a full-coverage drain pan, and flexible coil construction make the A+S a versatile evaporator solution for cold storage, food processing, refrigerated distribution, and other demanding industrial refrigeration applications.
The A+S is designed to minimize unit height while maintaining the durability, serviceability, and thermal performance expected from an industrial evaporator. Its compact configuration makes it particularly well suited for installations where overhead space is limited or where maximizing usable refrigerated space is a priority.
Key Benefits
Capacity range from 2–35 TR
Low-profile design for small to medium industrial applications
Helps maximize usable refrigerated space
High-efficiency fans with C-Face motors up to 1 hp
Hinged fan panels for simplified service access
Full-coverage drain pan
Multiple coil material combinations
Custom engineered for application-specific refrigeration and airflow requirements
Features & Upgrades
Low-Profile Configuration
Designed specifically for applications where ceiling clearance is limited, helping maximize usable storage and processing space while providing industrial refrigeration capacity up to 35 TR.
Full-Coverage Drain Pan
Designed to collect condensate and defrost water across the complete underside of the evaporator.
Hinged Fan Panels
Standard hinged fan panels improve access to fans and internal components for inspection and maintenance.
Flexible Coil Construction
Multiple tube and fin material combinations allow the evaporator to be configured for different refrigerants, sanitation requirements, corrosion environments, and operating temperatures.
Washdown duty motors
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
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.
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.
Applications
Cold Storage Warehouses
Food Processing
Meat & Poultry Processing
Seafood Processing
Refrigerated Distribution Centers
Prepared Foods
Blast Freezers
Blast Chillers
Produce Processing
Industrial Refrigeration Facilities