New Wave in Climate Separation Technology What is Invisidor? Contents New Wave in Climate Separation Technology 1 What is Invisidor? 1 Why Invisidor CA2? 1 What Makes an Effective Air Curtain 2 Patented Rectifier 2 Discharge Velocity 2 Air Volume 3 Discharge Temperature 3 Automatic Control 3 CDF Software for Air Curtains 4 Applications Air Curtain Selection Technical & Performance Specifications Dimensional Drawings Hanging Brackets The Biddle Guide to CA2 Control Options 5-6 7-10 11-12 1
What Makes an Effective Air Curtain? Patented Rectifier A critical factor when selecting an effective air curtain is ensuring that incoming air is conditioned to an acceptable temperature as it enters the building. For this to be achieved, the air curtain jet must cover the full width of the building entrance, so that it cannot be bypassed by incoming air. However, ensuring the jet reaches the floor level is more challenging.
Air Volume On more demanding days it is usual to increase the operational speed of an air curtain. Similarly on milder days the speed would be reduced. A standard air curtain with a fixed area discharge grille, means the air velocity increases or decreases accordingly, resulting in a drop in energy efficiency and comfort. One of the important differences between the Biddle CA2 air curtain and a standard air curtain is the inclusion of a patented damper mechanism.
CFD Software for Air Curtains Application CFD (Computational Fluid Dynamics) is a technique for modelling air flow and is an ideal tool for simulating the effects of air curtains in real-life building scenarios. It has already been used effectively during the design process of the Biddle air curtain range to optimise parameters such as discharge temperature and velocity.
Air Curtain Selection Product Selector The ‘at a glance’ selector below will enable a simple selection of the most appropriate product for your entrance environment application. Please take time to consider the details on the following page. If you are unsure which unit suits your application, please contact the Biddle sales office. Air Curtain Product Selector MOUNTING HEIGHT 4.0m 3.3m 2.8m 2.
Air Curtain Selection Design Considerations Biddle is part of your team. We work closely with consultants and architects from the earliest design stages to ensure the optimum air curtain solution is achieved for both new build and refurbishment projects.
Technical & Performance Specifications Invisidor CA2-S • • • • • Ideal for mounting up to 2.4m from floor to discharge Next generation of air curtains - available today Sets new standards of performance and efficiency Medium High Street Retail Outlets/Small Offices/Commercial Reception Areas (up to 200m2) Brings high-tech appeal to any entrance Water Heating Electrical Heating CA2-S 100 W CA2-S 150 W CA2-S 200 W CA2-S 250 W CA2-S 100 E CA2-S 150 E CA2-S 200 E CA2-S 250 E m 2.4 2.4 2.4 2.4 2.
Technical & Performance Specifications Invisidor CA2-M • • • • • Ideal for mounting up to 2.8m from floor to discharge Next generation of air curtains - available today Sets new standards of performance and efficiency Medium Retail Outlets/Foodstores/Larger Commercial Entrances (200m2-2,5002m) Brings high-tech appeal to any entrance Water Heating Electrical Heating CA2-M 100 W CA2-M 150 W CA2-M 200 W CA2-M 250 W CA2-M 100 E CA2-M 150 E CA2-M 200 E CA2-M 250 E m 2.8 2.8 2.8 2.8 2.8 2.8 2.
Technical & Performance Specifications Invisidor CA2-L • • • • • Ideal for mounting up to 3.3m from floor to discharge Next generation of air curtains - available today Sets new standards of performance and efficiency Large Retail Outlets/Superstores/Leisure Complexes (2,000m2-6,0002m) Brings high-tech appeal to any entrance Water Heating Electrical Heating CA2-L 100 W CA2-L 150 W CA2-L 200 W CA2-L 250 W CA2-L 100 E CA2-L 150 E CA2-L 200 E CA2-L 250 E m 3.3 3.3 3.3 3.3 3.3 3.3 3.3 3.
Technical & Performance Specifications Invisidor CA2-XL • Higher performance without the need for a larger unit • Specifically designed to cope with up to 4m high doors or complex entrance • environments Large Retail Outlets/Hypermarkets/Department Stores/Shopping Centres with higher performance requirements (5,000m2 plus) Water Heating Electrical Heating CA2-XL 100 W CA2-XL 150 W CA2-XL 200 W CA2-XL 250 W CA2-XL 100 E CA2-XL 150 E CA2-XL 200 E CA2-XL 250 E m 4.0 4.0 4.0 4.0 4.0 4.0 4.
Dimensions Free Hanging Model (F) Dim L CA2-S/M H D T CA2-L/XL 1000-1500-2000-2500 1000-1500-2000-2500 270* 370* 590 774 1122-1622-2122-2622 1154-1164-2154-2654 *Add 27mm for hanging brackets Notes: • The units of 2500mm wide have 3 suspension brackets, the third one of which is mounted half way along the unit’s length • By removing the end panels, multiple units can be easily linked together Dimensions Ceiling Recessed Model (R) Dim L CA2-S/M CA2-L/XL 1000-1500-2000-2500 1000-1500-2000-2500
Dimensions Bulkhead Recessed Model (R)(O) Dim L H CA2-S/M CA2-L/XL 1000-1500-2000-2500 1000-1500-2000-2500 270* 370* D 565 747 S 80 - 125 80 - 125 A 92# 124# B 260# 360# * Add 27mm for hanging brackets # Add 48mm for ceiling trims Notes: • • • • The units of 2500mm wide have 3 suspension brackets, the third one of which is mounted half way along the unit’s length The bulkhead will need to be airtight to prevent poor incoming quality air Multiple units can be easily linked together The un
Hanging Brackets Ceiling Suspension Brackets (Standard) Wall Mounting Brackets (Optional) Design Dim Standard CA2-L/XL Dim L 425 500 L 389 470 H 240 280 H 330 430 CA2-S/M CA2-S/M CA2-L/XL Profiled Hanging Covers (Optional) 13 Unit installed with optional profiled hanging covers
The Biddle Guide to CA2 Control Options CA2 air curtains operate by supplying air through a patented discharge rectifier/ grille. The air volume and velocity are adjusted by use of a patented control damper within the discharge grille assembly. At lower strengths the damper partially opens to create a greater ‘impulse’ to the air stream, providing a more energy efficient air curtain. At higher strengths the damper opens fully to provide an air volume and velocity to deal with more demanding situations.
Manual Mode The user has basic control of on/off, heating and fan speed. Automatic Mode The air curtain automatically selects the most appropriate air volume, air velocity, discharge temperature and heat output to provide optimum performance, highest efficiency and maximum comfort. The user no longer needs to continually adjust the fan speed or heating level when the inside and outside temperatures and weather conditions change.
An air curtain with traditional control has heat and fan speed linked to one another. When fan speed increases heat output will also increase, whether or not it’s necessary, leading to a less effective and less efficient air curtain. The CHIPS control strategy continually monitors and adjusts air volume, air velocity, discharge temperature and heat output independently of each other so that the point on the image where ‘Sufficient Heating’ and ‘Sufficient Strength’ intersect is always achieved.
Circular Doorways When an air curtain is to be used in conjunction with revolving doors or any other form of circular doorway we are able to use a variant of the recessed model installed either adjacent to or directly above the door. Given certain key dimensions we manufacture a bespoke discharge grille to fit perfectly with the curvature of the door, and ensure optimum climate separation around the circular doorway.
Materials, Components & Specifications Control & Operation The b-touch control panel regulates air volume, air velocity, discharge width and temperature in either automatic or manual mode. It is connected to the unit by a low-voltage data cable with RJ11 plugs. Multiple units are also connected in this way. Electric Connections LPHW heated units are connected to the mains supply by a 2 metre cable with a moulded, earthed plug.
• Biddle Air Systems Limited St. Mary’s Road, Nuneaton Warwickshire CV11 5AU Tel: +44 (0)24 7638 4233 Fax: +44 (0)24 7637 3621 Email: sales@biddle-air.co.uk http://www.biddle-air.co.uk • Biddle B.V. P.O.
