MRA-H / MRA-A Gas air curtain / Ventilation air curtain

Comfort and cost-effective solution nearby doors for industrial buildings

 

  • 2 models: MRA-H (with a gas burner of 45 kW), MRA-A (only ventilation)
  • MRA-H: horizontal mounting only
  • MRA-A: horizontal or vertical mounting
  • Air diffuser with high speed laminar air flow
  • Recommended height of installation: 4 to 6 m

Avantages

  • Laminar air flow (homogeneous blowing)
  • Multi-torch burner
  • Double gas solenoid
  • 2 mm thick weldless tubular exchanger in aluminised steel
  • Aluminium tinted front diffuser with adjustable vents
  • Automatic ignition by electrode
  • 2-channel weldness tubular exchanger
  • Ionisation probe flame control
  • Case in sheet steel with oven-baked epoxy paint
  • Remote resetting with control unit

Details techniques

Description

Paramètres

TECHNICAL SPECIFICATIONS

    MRA 45-H
Heating capacity (LHV) kW 44
Heat output kW 40.5
Combustion efficiency % 91
Air flow rate at 15°C (HS) m3/h 10 500
Air flow rate at 15°C (LS) m3/h 8 200
Air ΔT range HS/LS °C 12 / 15
G20 gas flow rate  m3/h 4.63
G25 gas flow rate  m3/h 5.17
G31 gas flow rate  kg/h 3.52
Minimum air flow rate m3/h 100
Electrical supply 1 x 230 V + N - 50 Hz
Range of operating temperature -15°C / +40°C
Gas connection 3/4" gas pitch
Type and number of fans 3 x 450 mm
Motor speed HS/LS tr/min 1 350 / 1 050
Electrical power W 1 350

Dimensions

    MRA 45-H
Length A mm 1 980
Width B mm 610
Height C mm 1 000
Diameter of air inlet connection mm 100
Diameter of flue outlet connection mm 100
Fixing points 4 x M8
Fixing centre distance mm 1 640 x 500
Mass kg 173

MRA-A – Ventilation only air curtain

  • Effective and economical solution against external air entry on passing through doors
  • 2 models: 1.5 and 2 m
  • Horizontal or vertical mounting
  • Pre-lacquered white body RAL 9003

TECHNICAL SPECIFICATIONS AND DETAILS

    MRA 1,5A MRA 2A
Diffuser m 1.5 2
Air flow rate m3/h 5 000 6 680
Max. installation height m 6 6
Electrical supply 1 x 230 V + N - 50Hz
Electrical power W 620 850
Length A m 1 472 2 002
Height B m 1 050 1 050
Width C m 610 610
Mass kg 55 73

Références

  • OOO “Prommetiz Rus” (Orel) - (Russie)
  • SNCF - (France)

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References