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
Advantages
- 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
Technical details
Parameters
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 |
Data sheets
- Titre Type
- CC14001A-FR Descriptif technique rideau air chaud gaz MRA-H .doc
- CF08009A-FR CE type rideau dair gaz MRA-A .pdf
- MRA 45 H .dwg
- NT08012B-FR Notice technique Rideau dair MRA-A .pdf
- NT14009D-FR - NOTICE TECHNIQUE RIDEAU D'AIR GAZ MRA-H .pdf
- NT15007B-FR - NOTICE TECHNIQUE RIDEAU D'AIR AMBIANT .pdf
References
- OOO “Prommetiz Rus” (Orel) - (Russie)
- SNCF - (France)
