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System X – Commercial Air Curtains

System X - Overdoor Fan Assisted Heater
  • Commercial air curtains help reduce heating costs by inhibiting heat losses
  • Ideal for larger shops and other commercial premises
  • Smart modern appearance and manufactured to the highest quality
  • Various controllers to suit all applications
  • New 2085mm long model (XAH-180)

Range & Prices

The prices shown are list prices and perfectly safe to use for budget purposes. Contact your electrical wholesaler for final prices.


An XAD-60 providing a warm welcome to customers at a Timber showroom in Bedford

Two XAD60 commercial air curtains daisy chained together and switched via one controller

Model kW Length (mm) List Price
XAS-30 3.0 635 £684.00
XAS-45 4.5 635 £697.00
XAD-60 6.0 1105 £988.00
XAD-90 9.0 1105 £1038.00
XAT-90 9.0 1620 £1216.00
XAT-135 13.5 1620 £1399.00
XAH-180 18.0 2085 £1938.00

System X Control Components

Control Components

Type Description Model

List Price

Controller With thermostat
On/off/high/low/fan only settings
Open window detection


Controller With tamper resistant thermostat
On/off/high/low/fan only settings
Open window detection


Controller Without thermostat
On/off/high/low/fan only settings


Controller With digital programmable thermostat
Optimum start feature


Controller For use with volt-free signal from BMS (for 230V signal a VI Interface is required) CX-BMS


Sensor Optional remote sensor for use with CX1, CX2 or CX6 CXS


Cable Cat5 terminated 5m DX05


Cable Cat5 terminated 10m DX10


Cable Cat5 terminated 20m DX20


Joiner Cat5 cable joiner JX1


Auxiliary Control Components




List Price

Programmable Thermostat

Use with CX-3 for 7-day programmable control
Optimum start option




7-day programmable timer for use with CX1 or CX2



How It Works

System X commercial air curtains produce a higher air velocity than overdoor heaters for a more effective air stream. 

A system will include a controller and up to 12 individual air curtains.  The control daisy chain is connected using Cat5 cables ensuring the quickest possible installation time.  Power is introduced to each air curtain individually with the controller taking its power from the first air curtain in the chain.

A unique feature of System X is that any style of heater from the range can be incorporated into a control daisy chain.  Heaters can be connected in any combination and any sequence.


Four commercial air curtains controlled from a single controller

Technical Specifications – Air Curtains


White RAL9010 case with black grille


Epoxy polyester powder coating


0.9mm steel case with white plastic end caps

Fan Assembly:

Tangential fan with low noise aluminium fan blades
Shaded pole high performance motor
Factory lubricated bearings (servicing not required)

Heating Element:

High quality nickel-chrome resistance wire supported by ceramic plates and fitted with an automatically resetting over-temperature device


Up to 12 heaters can be connected to a single controller in any combination or sequence.  Control connections are by Cat5 cable


Wall brackets providing vertical air discharge
Alternatively, 2 x M8 threaded holes are provided for suspension from drop rods

Recommended mounting heights 2.5m to 3.5m above floor level


1 year

Performance Data



Volts Airflow (m³/h) dB*@2m
High Low
XAS-30 3 2 230 345 60
XAS-45 4.5 2.25 230 345 60
XAD-60 6 4 230 690 62
XAD-90 9 4.5 230 690 62
XAT-90 9 6 230 or 400/3N 1035 62
XAT-135 13.5 6.75 400/3N 1035 62
XAH-180 18.0 12.0 400/3N 1440 66

* Noise levels are factory tested, not laboratory tested.

Physical Data


Dimensions (mm)

Weight (kg)
XAS 635 108 225 8.5
XAD 1105 108 225 13.5
XAT 1620 108 225 19
XAH 2085 108 225 22.8

Technical Specifications – Controls


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 via 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

CXS Optional remote temperature sensor

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)


If you would like the experts at BN Thermic to select air curtains 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.

Enquiry Form

For best results, air curtains should be selected to cover the entire door width.