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Refrigeration Evaporators

A+ Series® Air Cooler - Industrial Air Coolers - A+R

Details

"Above Rail" style evaporator for use in food processing rooms where cleanability and workspace is critical. Designed for worker comfort and maximizing the use of workspace. Colmac Coil offers both a standard A+R and low profile configuration.   

Hygienic design 

  • Hinged access panels on both sides standard for easy access
  • Stainless steel materials of construction 
  • Full coverage insulated drain pan eliminates condensation and dripping
  • Drainpan edge is angled inward, directing water into the pan
  • Optional clean in place (CIP) piping available
  • Anti-Microbial or Epoxy Coated fin material options
  • Passivated welds to protect against contamination
  • Washdown duty motors available   

 

Easy installation and service

  • Air deflector design provides good air coverage and is easy to remove for servicing the motor
  • Hinged access panels on both sides standard for easy access to the coil core
  • Designed for optimal recirculation rate to reduce system refrigerant charge

 

Maximize use of space and worker comfort

  • Low installation height: 20-30” for low profile configuration and 30-50” for standard configuration
  • Optimized fan speed for low sound pressure
  • Exposed fins on the lower edge of the entering row for increased airflow

 

A+R Standard

Features

Designed to fit your footprint

  • Capacity range: 3 – 25 TR
  • 1-8 fan configurations  

Tubes/fins options

  • Aluminum tubes/aluminum fins
  • Aluminum tubes/epoxy coated aluminum fins
  • Steel tubes/galvanized steel fins  
  • 304 Stainless steel tubes/ 304 stainless steel fins
  • 304 Stainless steel tubes/aluminum fins
  • 304 Stainless steel tubes/epoxy coated aluminum fins
  • 304 Stainless steel tubes/anti-microbial alloy fins
  • 316 Stainless steel tubes/ 316 stainless steel fins
  • 316 Stainless steel tubes/aluminum fins
  • 316 Stainless steel tubes/epoxy coated aluminum fins
  • 316 Stainless steel tubes/anti-microbial alloy fins

Coil casing 

  • G-235 galvanized steel  
  • 304 stainless steel
  • 316 stainless steel 

Fan type

  • Composite
  • Aluminum
  • Stamped Aluminum 

 

Hygienic full coverage drain pan design

  • The A+R drain pan extends beyond the length and width of the air cooler, providing full coverage, preventing drips and splashing. 
  • The edge of the drain pan is angled inward, directing water into the pan. 
  • Drain pan is fully mounted before shipping. 

Drain pan options

  • Fully seal welded drain pan
  • Galvanized steel
  • Heat tracing 

Defrost options

  • Air
  • Electrical
  • Hot Gas
  • Interlaced Glycol 
  • Water

Refrigerant feeds

  • Recirculated top feed
  • Recirculated bottom feed 
  • Flooded 
  • Direct expansion

Refrigerants  

  • Ammonia, C02, R22, R507A
  • Calcium Chloride, Ethylene Glycol, Patassium Formate, Propylene Glycol, Water 

Electrical options 

All A+R air cooler fan motors come factory wired to a common terminal box.

  • The A+R is by default equipped with individual terminal strip.
  • VFD compatible
  • 230 - 380 - 460 - 575/60/3 or 200 - 400/50/3 supply power   

Fan motors 

  • Totally enclosed air over (TEAO) motor
  • C-Face motors up to 1 Hp
  • Wash down duty motors available 

Hinged access panels on both sides

 

Air deflector design

A+R Air Deflector

Colmac Coil R&D Enginners developed and extensively tested the A+R air deflector that provides both a low installation height and directs air outward. 

  • Easily removed for servicing motor
  • Directs air outward, providing good air coverage

Weld finish levels

  • Level 3 and 4 available 
Options

Clean in place (CIP)

Interiordoublenozzle

  • Provides complete spray coverage of the entire coil core
  • Automated and repeatable cleaning process
  • In rooms above freezing, CIP provides a means of water defrost 

 

Enhanced tube technology 

 

Smart hot gas defrost

 

Smart hanger system

 

Aluminum-to-steel bimetallic couplers

 

A+R Low Profile

 

Colmac Coil developed a low profile A+R configuration for ultra low ceiling heights. To accommodate the lower installation height, there are a few differing features from the A+R standard design:

 

  • 20 - 30 inch installation height
  • Fan Rows: 2-6
  • 1/4 horsepower motor
  • Bolted 48 frame motor 
  • 230/60/1 or 460/1 phase 
  • Not inverter ready  

AR-unit -assy -RF---Low -profile ---white -background (1)

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