- High velocity air curtains providing an invisible barrier between indoor and outdoor environments, reducing heating costs in winter and air conditioning costs in summer
- Electric heating elements help eliminate the ‘chill factor’ associated with a high velocity air stream
- Ideally suited to stores with an open-door policy
control allows from one to twelve air curtains to be controlled from a single point
Range & Prices
The prices shown are list prices and perfectly safe to use for budget purposes. Contact your electrical wholesaler for final prices.
Model Number | Length (mm) | kW | List Price | |
High | Low | |||
HCA2-09 | 1113 | 9.0 | 4.5 | £2224.00 |
HCA2-13 | 1621 | 13.5 | 6.75 | £2472.00 |
HCA2-18 | 2121 | 18.0 | 9.0 | £3043.00 |

HCA air curtains create an invisible barrier to limit heat loss in commercial and industrial premises
Controls
You will need to select one controller to control a single air curtain or a group of air curtains. Connections between controller and air curtain and, where necessary, between individual air curtains is by Cat5 cable.
Control Components |
|||
Type | Description | Model |
List Price |
Controller | With thermostat On/off/high/low/fan only settings Open window detection |
CX1 |
£128.00 |
Controller | With tamper resistant thermostat On/off/high/low/fan only settings Open window detection |
CX2 |
£131.00 |
Controller | Without thermostat On/off/high/low/fan only settings |
CX3 |
£130.00 |
Controller | With digital programmable thermostat Optimum start feature |
CX6 |
£226.00 |
Controller | For use with volt-free signal from BMS (for 230V signal a VI Interface is required) | CX-BMS |
£123.00 |
Sensor | Optional remote sensor for use with CX1, CX2 or CX6 | CXS |
£36.00 |
Cable | Cat5 terminated 5m | DX05 |
£8.50 |
Cable | Cat5 terminated 10m | DX10 |
£13.50 |
Cable | Cat5 terminated 20m | DX20 |
£20.50 |
Joiner | Cat5 cable joiner | JX1 |
£4.50 |
How it Works
HCA high capacity air curtains are mounted above doorways and are designed to provide an invisible barrier between indoor and outdoor environments. The HCA range is well suited to stores with an open door policy. By creating this barrier, the HCA air curtain will help reduce heating costs in winter and air conditioning costs in summer, without impeding foot traffic. The HCA will also minimise the ingress of pollutants and insects
In cooler conditions, the ‘chill factor’ associated with a high velocity air stream can be uncomfortable. The HCA air curtains are therefore fitted with electric heating elements which warm the airstream thereby offsetting the ‘chill factor’ and contributing to a building’s heating requirement.

An HCA Air Curtain reduces heating costs in Winter and air conditioning costs in Summer
Technical Specification
Colour | White RAL9010 satin finish |
Finish | Epoxy polyester powder coating |
Construction | 1mm steel case |
Aluminium outlet grille | |
Heating Element | Metal sheathed elements with spiral wound cooling fins |
Built-in Control Components | Factory installed 230V fused control circuit |
Factory installed contactors | |
Control | One controller must be selected to control a single air curtain or a group of air curtains |
Overheat Protection | Two ‘high’ and two ‘high-high’ over-temperature devices fitted |
Installation | Wall-mounted using the mounting plate provided or suspended from drop rods (4 x M6 threaded holes provided) |
Recommended Mounting Height | 2.5m to 4m |
Maximum operating ambient temperature |
30°C |
Guarantee | 1 year |
Performance Data
Model | Voltage | kW | Airflow (m³/h) | dB Estimate at 3m* |
||
High | Low | High | Low | |||
HCA2-09 | 400/3N | 9.0 | 4.5 | 1879 | 1444 | 66 |
HCA2-13 | 400/3N | 13.5 | 6.75 | 2617 | 2441 | 71 |
HCA2-18 | 400/3N | 18.0 | 9.0 | 4100 | 3834 | 68 |
* Noise levels are factory tested, not laboratory tested.

A pair of air curtains looking the part in a prestige London office building
Physical Data
Model | Dimensions (mm) | Weight (kg) | ||
Length | Depth | Height | ||
HCA2-09 | 1113 | 265 | 254 | 19.6 |
HCA2-13 | 1621 | 265 | 254 | 25.4 |
HCA2-18 | 2121 | 265 | 254 | 31.0 |

Air curtain looking the part in a prestige London office building
Technical Specifications – Controls
MODEL: CX1
Maximum number of heaters controlled: 12
Type of heaters controlled: any heaters from the System X range in any sequence
Electrical Supply: taken from heater via Cat5 cable
Heater settings: on/off/high heat/low heat/fan only
Built-in adjustable thermostat range: 0 to 30˚C
Connection to first heater in group: Cat5 cable
Mounting: surface mount
Dimensions: 120mm x 80mm x 40mm
Special Feature: Open window detection (user selectable)

Model: CX2
As CX1 but with a tamper resistant built-in thermostat

Model: CX3
As CX1 but without built-in thermostat or open window detection

Model: CX6
As CX1 but with:
7-day programmable timer
Temporary override
Temporary lock
Optimum start for enhanced economy (user selectable)
Without open window detection

Model: CX-BMS
As CX1 but without manual or thermostat control
Requires a volt-free signal from a BMS to switch heater on and off
Can operate with a 230V signal vis a VI Interface

Model: CXS
Remote mounted sensor for use with CX1, CX2 or CX6 controller
Overrides the controller’s built-in air sensor
Recommended maximum cable length between controller and sensor: 20m
Mounting: surface mount
Dimensions: 80mm x 80mm x 35mm

Pre-terminated Cat5 Cables
DX05: 5m
DX10: 10m
DX20: 20m
JX1: Cat5 Joiner / Coupler – Click fit (Joins two Cat5 cables together should you require longer lengths)
Selection
If you would like the experts at BN Thermic to select a suitable air curtain for your application, please click here to access our enquiry form. Simply provide as much information as you have available and we will respond with a detailed proposal.

HCA air curtains can be easily wall mounted or suspended from drop rods
An HCA air curtain is designed for installation above doorways in commercial and industrial premises providing an invisible but effective barrier between internal and external environments. When the correct air curtain is selected benefits will include the reduction of heating costs (winter), reduction in air conditioning costs (summer) as well as minimising the ingress of insects.
HCA air curtains are effective at mounting heights between 2.5m and 4m. Ideally the selected air curtain should be longer than the width of the door. Use the following table as a guide.
Model Number |
Maximum Door Width |
HCA2-09 |
1.0m |
HCA2-13 |
1.5m |
HCA2-18 |
2.0m |
Important Note: For an HCA air curtain to provide an effective air barrier, a high air velocity is required. The resulting noise output must be considered. For this reason, we do not recommend HCA air curtains for smaller shops or where people are working in close proximity to the entrance.
Videos
Images
- Front view of 9kW HCA2-09
- Front view of 13kW HCA2-13
- Front view of 18kW HCA2-18
- Rear view of HCA2-09 showing mounting bracket
- The surdy wall bracket supplied as standard
- CX1 Controller with adjustable thermostat
Installation Images
- HCA2 air curtains are hand assembled in the UK
- Multiple air curtains can be controlled from a single controller using Cat5 cable
- HCA2 air curtains can be easily suspended on drop rods
- An HCA2-18 limiting heatloss in a high end office block
- HCA2 air curtains are often used in schools, universities and colleges
- Tw 18kW air curtains installed in a national DIY store