Next Generation Direct Air Cooling (DAC)

Direct Air Cooling (DAC) is an industry-leading fan based direct air cooling system providing low-maintenance, energy-efficient and environmentally friendly cooling options for equipment cabinets and shelter enclosures. It works by bringing outside fresh air to the equipment in an energy-efficient, controlled and clean method.

DAC solutions from RFI consistently deliver clean, reliable cooling. They are proven to reduce cooling electricity by over 75% compared to traditional HVAC systems. They are DC powered thus eliminating interruptions during power outages. DACs qualify for energy rebates and green initiative programs.

DAC & HVAC Solutions

WALL MOUNTABLE DAC SYSTEM AF000401

Telecom Shelter Cooling System for Walls

  • Patented air-cooling system provides total environmental control for telecom shelters
  • Dual, variable speed, and high efficiency blowers apply positive pressure to the shelter
  • Includes a Deep Media Filter (MERV 16) (MERV 14 is available for non-coastal environments)
  • Fits HVAC return or supply opening (3 to 6 ton)
  • Regulated by the Smart Controller (part # AF000400) that controls up to 3 DAC fans and 2 HVAC units
  • Reduces compressor cycling, extends the life of HVACs and reduces HVAC maintenance costs

DOOR MOUNTABLE DAC SYSTEM AF000402

Telecom Shelter Cooling System for Doors

  • Patented air-cooling system provides total environmental control for telecom shelters
  • Dual, variable speed, and high efficiency blowers apply positive pressure to the shelter
  • Includes a Deep Media Filter (MERV 16) (MERV 14 is available)
  • Fits doors as narrow as 3’-0” width
  • Regulated by the Smart Controller (part # AF000400) that controls up to 3 DAC fans and 2 HVAC units
  • Reduces compressor cycling, extends the life of HVACs and reduces HVAC maintenance costs
  • Suitable for for harsh marine environments

DUALXCHANGE
AF-DS201 SERIES

DualXchange Hybrid Ecosystem for Thermal Management in Walk-Up Telecom Cabinets

The DualXchange DAC (Direct Air Cooling) is a versatile solution designed to integrate seamlessly with existing HVAC systems. When the temperature inside the enclosure is below the maximum allowable threshold, DualXchange recirculates air to maintain the temperature. If the temperature exceeds the threshold, the ecosystem introduces fresh, filtered ambient air. This DC-powered, NEMA 4-rated solution ensures continuous operation during power outages, reduces operational expenses by significantly lowering HVAC operation and power consumption, and decreases HVAC replacement and maintenance costs, extending the lifespan of HVAC systems.

  • Provides efficient backup cooling for walk-up cabinets to ensure operation during power outages
  • Reduces operational expenses by lowering site power consumption
  • Decreases site visits by extending the lifespan of HVAC systems
  • Sensors enable predictive maintenance to prevent costly repairs

DAC CABINET KIT AF000190

Outdoor Telecom Cabinet Cooling System

  • Cools up to 4kW heat load cabinets using less than 250W with quad high efficiency fans, delta T as low as 5 degrees C.
  • Dust free system thanks to positive pressure applied to the cabinet and deep media long life telco grade air filters (MERV 14 or 16).
  • Modular platform can fit most cabinets with door panel larger than 24 (W) x 57 (H) inches (both units on same door) or as small as 24 (W) x 30 (H) inches (front & back installation).
  • Complete cooling kit for fast field cabinet upgrades. Kit includes Filter/Fan lower unit with hood, exhaust damper with hood (no cabinet front door panel).

WALL MOUNTED AIR CONDITIONERS AF000404 & AF000405

-48 VDC Air Conditioners for Telecom WIC and Shelters

These AC units complement our Next Generation Direct Air Cooling Systems providing a complete end-to-end solution.

  • Small form factor, lightweight and designed for easy installation and maintenance
  • Rugged construction, all-weather resistant and suitable for harsh marine environments
  • Leverages success of commercial transportation HVAC designs
  • 100% DC powered – eliminates the need for inverters
  • Factory pre-charged with commercial R134a low-pressure refrigerant, eliminating leaks, reducing maintenance

COMBINED TEMPERATURE CONTROLLER AF000400 & AF000400-HC

Regulate DAC & HVAC in Shelters for Maximum Efficiency

  • Controls up to 3 DAC fans and 2 HVAC units
  • Provides site alarms for high & low temp, DAC, HVAC or controller failure
  • Compatible with AF000401 Wall DAC, AF000402 Door DAC and legacy AF000013 Door DAC (simple update kit is required)
  • Reduces HVAC compressor cycling to extend product life and reduce maintenance costs
  • Ethernet connectivity for additional monitoring alarming

Have Questions? We’re Here to Help

Call Us Today at 800-233-1728 or fill out the form below. We look forward to hearing from you.