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ALFA D²

ROOF MOUNTED HVAC DESIGNED FOR DOUBLE DECKERS TRAINS

ALFA D² Double Decker HVAC

  • VEHICLES:
    DOUBLE DECKER EMU-DMU and COACHES
  • APPLICATION:
    INTEGRATED ROOF MOUNTED
  • SPECIAL VERSION
    SPLIT SOLUTION
DOWNLOAD PROJECT PDF

TECHNICAL FEATURES


- Cooling Capacity: 36(12x3)kW
- Refrigerant Circuits: n°3
- Summer Design condition: 40/40°C/R.H.
- Extreme summer Condition: 45°C
- Elettrical supply in Cooling: 400/50V/Hz
- Max electrica consumption in Cooling: 24kVA
- Max Inrush Current: 90A
- HFC Refrigerant: R407C
- Heating Capacity: 30kW
- Heating Stages: n°6
- Winter Design Condition: -20°C
- Extreme winter Condition: -25°C
- Auxiliary Electrical Supply: 24V
- Max Electrical Consumption in Heating: 34kVA
- Total Air Flow: 3600m3/h
- Total Air Flow (free blowing): 4800m3/h
- Air Static Pressure: 500Pa
- Overall Dimensions: 3200x1650x800mm
- Weight: 720kg

Unit description

- 3 independent subunits to assure accurate and independent regulation of each separate compartments of the coach
- Continuous dedicated control air flow for each compartments, to achieve independent regulation of each compartments of the coach
- Dedicated cooling/heating control modulation for each compartments of the coach
- Efficient air filtration, both for fresh than recirculated air flow
- Anti ice control during cooling
- Safe heating functioning
- Reliable components

- Compliant to the main railway standards
- Customizable according to different railway standards and specifications
- Different cooling power, dimensions, shapes and air distribution interfaces on demand

PROJECT GOALS

Designed to assure independent regulation for each passengers compartment by using dedicated sub unit

PROJECT GOALS

CO2 control to manage the fresh air flow according to the real passengers occupancy

features of this project
  • ROOF INTEGRATED DESIGN
  • 3 INDEPENDENT CIRCUITS
  • CONTINUOUS AIR FLOW CONTROL
  • FRESH AIR FLOW CONTROL