Minimal Maintenance, Long Lasting Performance

Air curtains are acknowledged to enhance comfort conditions in the entrance environment. However with routine maintenance procedures, such as cleaning filters, often ignored a drop-off in performance and an increase in noise all too often results.

With this in mind the Invisidor DOORFLOW has been carefully developed to minimise maintenance. A purpose designed coil/heater battery reduces the build-up of dust and debris between the coil fins to such an extent that filters are no longer necessary. Having no filters means the Invisidor DOORFLOW doesn’t just offer minimal maintenance but also provides a continuous and consistent long lasting level of performance.

Available in a variety of paint finishes, Invisidor DOORFLOW has a minimalist style, being designed to look good in all types of entrance environment – from fashionable boutiques to schools and colleges. And because it is modular in nature any number of units can be joined together to create one seamless air curtain covering any door width.

As with all air curtains from Biddle the Invisidor DOORFLOW uses Biddle’s proven, patented rectifier to supply conditioned air at low speed with minimum turbulence, ensuring the air stream reaches the floor and doesn’t escape to the outside. Comfort within the entrance area is therefore enhanced without any energy wastage.

Whether using water or electric heating, an advanced energy saving controller - the ECONTROL – when combined with the Invisidor DOORFLOW air curtain optimises energy savings. Operated either manually or automatically the ECONTROL will not just control air curtain performance but will also control comfort conditions in the entrance environment through energy saving adjustment of air volume and temperature. Timer clocks, door contact switches or room thermostats can still be linked to the air curtain for added flexibility.

Specifications
Mounting Heights : up to 3.1m
Unit Widths : 1.0m, 1.5m & 2.0m
Heating Medium : Water, electric

Model Code : DF-SP-150-W-R
R  → R = R = Ceiling Recessed, F = Exposed, C = Cassette
W  → W = Hot water heating, E = Electric heating
150  → Size = 100/150/200
SP → Model = SP/HP/T


Benefits
• Minimalist design
• Filter free
• Long lasting performance
• Energy saving ECONTROL
• Patented rectifier