|AB N - industrial, horizontal mounting, max. mounting height 6 m|
|Maximum door width||m||1,75||2,25||3,5||4||4,5||5,25||5,75||6,25||6,75|
|Maximum mounting height||m||6|
|Number of modules||pcs||1||2||3|
|Maximum heating capacity||kW||40||54||80||94||108||120||134||148||162|
|Gas flow rate|
|Natural gas (G20)||m3/h||4,7||6,3||9,4||11,0||12,6||14,1||15,7||17,3||18,9|
|Natural gas (G25)||m3/h||5,4||7,4||10,8||12,8||14,8||16,2||18,2||20,2||22,2|
|Gas supply pressure|
|Natural gas (G20)||mbar||max. 25 mbar ; min. 17 mbar ; nominal 20 mbar|
|Natural gas (G25)||mbar||max. 30 mbar ; min. 20 mbar ; nominal 25 mbar|
|Propane (G31)||mbar||max. 45 mbar ; min. 25 mbar ; nominal 37 mbar|
|Number of fans||pcs||3||4||6||7||8||9||10||11||12|
|Electrical supply||230V 1 phase 50 Hz|
|Current rating (per fan)||amps||4,5|
|Motor power (per fan)||W||550|
|Total current rating||amps||13,5||18||27||31,5||36||40,5||45||49,5||54|
|Total fans electrical load||kW||1,65||2,2||3,3||3,85||4,4||4,95||5,5||6,05||6,6|
|Total electrical load||kW||1,75||2,3||3,5||4,05||4,6||5,25||5,8||6,35||6,9|
|Flue diameter||mm Ø||130|
Airbloc AB industrial air curtains provide a barrier of high velocity air that helps block incoming winds and stops warm air escaping. They achieve this by delivering a powerful barrier of heated air across the entire width of the doorway. Units can be easily fitted within existing or new buildings and are ideal for open doorways.
The open door not only causes discomfort but greatly increases energy loss and the running costs of the building. Airbloc units offer a cost-effective, energy efficient solution to these problems.
Units are mounted horizontally above the door to enable high-level warm air to be re-circulated to working level.
Features & Benefits
AB Series Applications
When doors are opened in heated buildings, outside, colder, more dense air flows in through the bottom half of the door opening, whilst warm internal air flows out through the upper part of the doorway.
This results in considerable energy loss from the building and a layer of cold air forming at low level reducing comfort levels.
Heated building without air curtain
The installation of an Airbloc energy saving air curtain provides a barrier of air to separate the indoor and outdoor climates and deflect the natural convection airflow to retain heat inside the building.
The units operate when door opens and can also operate after the door has closed to supply supplementary heat.
The Airbloc design provides air at a critical velocity, volume flow and temperature for optimum performance. The evenly distributed airflow across the full width of the door ensures effective tempering of incoming air.
Industrial doors require high air volumes for effective climate separation, the width of the air jet is critical to the unit performance and to maintain optimum air velocity this requires high primary air volumes. Units with a low air volume and narrow jet width do not provide sufficient resistance to the cold outside air. The Airbloc units have a 155mm outlet which combined with the high primary air volume provides a far more effective air barrier against external cold air, thereby reducing cold air ingress and improving energy savings.
To transform the turbulent airflow created at the fan outlet whilst at the same time optimising velocity the discharge section of the Airbloc units incorporate robust 70mm deep aluminium aerofoil profile blades which act as air straightening vanes to produce a laminar airflow discharge whilst minimising airflow resistance. To allow the air discharge to be adjusted to suit prevailing conditions, the complete assembly adjusts as a single section to maintain the airflow profile, once adjusted the complete assembly can then be locked into position. A three speed fan allows the airflow and velocity to be adjusted to suit varying door heights or exposure levels.
Pattern of airflow