Biddle Public Buildings & Offices Climate Control Solutions

PUBLIC BUILDINGS & OFFICES Climate Solutions for High- Occupancy Buildings

CLIMATE SOLUTIONS FOR PUBLIC BUILDINGS AND OFFICES

A comfortable indoor environment is fundamental to productivity, wellbeing and the impression a building makes on everyone who enters it. Whether it is a busy civic building welcoming members of the public, a contemporary office accommodating hundreds of employees, or a heritage building being brought back to life, the climate challenges are demanding — and the standards expected are high. Biddle has many years of experience delivering quiet, energy-efficient and highly reliable climate solutions across the full spectrum of public and commercial buildings — from new-build smart offices to the sympathetic refurbishment of landmark historic structures. Our project-focused approach and flexible product range means we can create a tailor-made solution for any building, whatever its age, size or complexity.

CUSTOM CLIMATE CONTROL No two buildings are alike, and no two Biddle solutions are the same. Drawing on our industry-leading range of products — including fan coil units, air curtains and air heaters — we design a custom climate system to suit each building's unique requirements, occupancy patterns and aesthetic standards. CLIMATE SEPARATION Public buildings and offices experience constant movement through their entrances throughout the working day. Every door opening is an opportunity for energy to escape. Biddle's climate separation solutions create an effective invisible barrier at doorways, maintaining internal comfort while reducing energy consumption — with separation efficiency of up to 94%. AESTHETICS AND PERFORMANCE In public buildings and prestige offices, how a climate solution looks is as important as how it performs. Biddle's range includes architecturally considered products designed to complement contemporary and traditional interiors alike — from the striking cylindrical form of the Invisidor STYLE2 to the discreet ceiling-mounted Comfort Circle and the configurable ProAir fan coil unit.

PUBLIC BUILDINGS AND OFFICES | INTRODUCTION

The Manchester City Women's Training Ground is a state-of-the art facility built to support elite athletes in a world-class environment. As part of ongoing improvements, attention turned to the reception area – a critical first point of contact for staff, players, and visitors. The goal was clear: create a space that not only reflects the club's professional standards, but delivers a genuinely comfortable and welcoming atmosphere for all who enter. Following a trusted colleague's recommendation and an established relationship with Biddle's sales team, the decision was made to specify the DoorFlow 2 air curtain for this installation. CASE STUDY MANCHESTER CITY WOMEN FOOTBALL CLUB

AIR CURTAIN SOLUTIONS

SOLUTION

To address the drafts and temperature fluctuations in the reception area, Biddle proposed the DoorFlow 2 air curtain. Selected for its ability to create a powerful, efficient air barrier, the DoorFlow 2 maintains a stable indoor climate and significantly reduces energy loss caused by frequent door openings. Its sleek, minimalist design makes it the ideal choice for environments where visual integration is as important as technical performance. The unit's compact form and clean lines allow it to blend seamlessly into the reception's contemporary architecture, while its robust engineering ensures it can meet the demands of a busy, high-profile facility.

The entrance to a building sets the tone for everything that follows. It must be welcoming, comfortable and efficient. Biddle's air curtains deliver effective climate separation at doorways, preventing the escape of conditioned air and blocking cold draughts.

BENEFITS

VARIANTS

Protects internal environment from atmospheric conditions Keeps out draughts, pollutants, insects, and fumes Control flexibility – manual, automatic, BMS integration Choice of RAL colours to match interior aesthetics

Designed to maintain occupancy comfort without impacting on energy use, Biddle’s range of comfort air curtains are the perfect solution to create welcoming entrances. The STYLE and SR air curtains deliver exceptional performance and prevent thermal exchange across a threshold through all seasons. 2

CONCLUSION

The DoorFlow₂ delivered reliable thermal comfort and seamless aesthetic integration at a world-class sporting facility — proof that performance and design need never compromise each other.

PUBLIC BUILDINGS AND OFFICES | AIR CURTAINS

PUBLIC BUILDINGS AND OFFICES | INTRODUCTION

RECTIFIER

AIR CURTAIN TECHNOLOGY i-SENSE

Rectifier technology creates excellent downward penetration of the air stream, making it perfect for applications where the door height is greater than the air curtain width, preventing thermal conduction. The laminar air stream reaches the floor at a much lower air speed, preventing the air from colliding with the floor and resulting in efficient use of heat energy. The rectifier transforms the air turbulence caused by the fans into a laminar air stream, ensuring that the air curtain's warmth benefits the indoor climate. This prevents large air displacement, achieving optimal climate separation efficiency while using less energy.

The patented i-sense infrared technology carefully scans the environment around the doorway collecting information on indoor and outdoor temperatures by measuring the exact temperature at floor level. In addition, the i- sense detects when the door is closed. The i-sense (1) collects temperatures from several points both from inside and outside the doorway (2&3), whilst a sensor in the return air measures room temperature (4).

Without Rectifier

Turbulent Flow

With Rectifier

Laminar Flow

EXAMPLE OF I-SENSE IMPACT The graph illustrates how the outdoor and indoor temperatures are measured using i-sense. As demonstrated, the sensor located on the outside of the doorway estimates an outdoor temperature of 9 °C (green line) whilst, i-sense sensor in the doorway provides a reading of 4 to 5 °C (purple line). This provides the evidence of accuracy readings of climate conditions in the doorway measured by Biddle technology. CHIPS

CONTROLLED AIR STRENGTH The Controlled Air strength technology is paired with the rectifier to create adaptable discharge width, which can be tailored to meet the specific climatic conditions of any given doorway. With six different settings to choose from, the air valve automatically adjusts the discharge width to optimise climate separation efficiency. As a result, the air volume and discharge velocity increase only as much as is necessary to maintain a comfortable indoor temperature while reducing energy consumption.

CHIPS (Corrective Heating and Impulse Prediction System) technology automatically adjusts discharge velocity, air volume, discharge temperature and heat output. Outside, return air and discharge temperature sensors (i-Sense) are used to determine how much heat is required and Biddle’s control algorithm ‘translates’ the data into the strength required, removing the need for users to continually adjust settings. An air curtain with traditional control has heat and fan speed linked to one another: when the fan speed increases heat output increases.

PUBLIC BUILDINGS AND OFFICES | AIR CURTAINS

SR AIR CURTAIN

For high-traffic public entrances where maximum performance is required, the SR Comfort Air Curtain delivers industry-leading climate separation. Its patented i-sense and CHIPS technologies work in tandemcontinuously to measure door opening temperatures, calculating optimal settings and automatically adjusting air output to achieve separation efficiency of up to 94%. Six selectable settings allow integration with building management systems for fully automated operation. REMOTE MONITORING & ANALYTICS The b-touch control panel includes a USB data export function allowing usage data, energy consumption and comfort performance to be logged and analysed. For facilities managers of public buildings or large offices, this supports ongoing energy monitoring, maintenance planning and compliance reporting — core parameters within a regulatory environment that requires CO₂ monitoring and energy performance certificates.

BENEFITS

BMS integration via Modbus and BACnet Door closed detection prevents unecessary energy use

Remote monitoring supports energy modelling Door height up to 4.0m depending on the model

PUBLIC BUILDINGS AND OFFICES | AIR CURTAINS

DOORFLOW 2 AIR CURTAIN The DoorFlow₂ is an ideal solution for public buildings and office entrances, creating effective climate separation across a threshold without compromising the architectural integrity. Able to warm cold incoming air in Winter and deploy filtered, ambient air to maintain temperatures in the Summer. The DoorFlow₂ uses Biddle's patented Rectifier technology to supply airstreams with minimum turbulence. REVOLVING DOORS For entrances featuring revolving doors, the DoorFlow₂ Tourniquet model provides a bespoke curved discharge grille, manufactured to match the exact radius of the door — ensuring complete, uncompromised climate separation around any circular doorway. SMART CONTROL In Auto Mode, the control panel automatically adjusts heat output to optimise performance and minimise energy use. Built-in Wi-Fi connectivity means the DoorFlow₂ can be monitored, adjusted or locked remotely — ideal for multi-site facilities management across large public or commercial building portfolios.

BENEFITS

Mounting heights of up to 3.5m WiFi control via Biddle App BMS integration via Modbus and BACnet Compatible with LTHW systems

PUBLIC BUILDINGS AND OFFICES | AIR CURTAINS

STYLE 2 AIR CURTAIN

The STYLE 's distinctive cylindrical profile and perforated grille make it a design feature in its own right — available in a range of finishes and custom RAL colours to complement any interior scheme. Modular in design, units can be combined to cover any door width, and the range supports both horizontal and vertical installation configurations, making it suitable for the widest variety of entrance types. 2 ECONTROL The ECONTROL system optimises air curtain performance while minimising energy use. In Auto mode it automatically maintains the set room temperature; Manual mode offers zero, 50% or 100% heat output. Timer clocks, door contact switch and

BMS integration are all available. MODULAR DESIGN

The Invisidor STYLE2 is modular in design, with units available from 1120mm to 2345mm. Multiple units can be combined seamlessly to cover any door width, and the range supports both horizontal and vertical installation — making it adaptable to virtually any entrance configuration.

BENEFITS

Patented Rectifier technology

Installation to BMS via Modbus and BACnet Ambient, water-, and electric-heated models Customisable aesthetics with full range of RAL colours

PUBLIC BUILDINGS AND OFFICES | AIR CURTAINS

CASE STUDY ENTERPRISE WHARF

Situated at the heart of Birmingham’s Knowledge Quarter, the construction has over 120,000sq ft and 10 floors of flexible office space. Enterprise Wharf is aiming for Net Zero Carbon Emissions and will use Internet of Things (IoT), solar power and other sustainable solutions, which will help to manage and optimise the energy utilisation, resulting in a sustainable usage. Our dedicated specification team provided a sustainable, modern and energy efficient HVAC solution, which would work with BEMS Control. Moreover, the solution had to be quiet as the units are going to be installed without a false ceiling.

FAN COIL UNIT SOLUTIONS

SOLUTION

The ProAir Series 270 was selected for Enterprise Wharf as it met all the client's HVAC requirements, including energy efficiency, noise levels and heating/cooling duty. The units feature energy-efficient EC DC motors and PIC Valves from FloControl, which automatically regulate water flow and temperature. Internally lined casings provide the quietest possible operation, making the ProAir ideal for exposed installations where noise levels are critical. Units were supplied with integrated smart BMS controls, with the control panel positioned externally to allow easy access and protect components from airflow-related dust build-up. Available in unpainted galvanised sheet steel or painted finishes on request.

Modern offices and public buildings demand climate systems that are quiet, flexible, energy-efficient and capable of seamless integration with building management systems. Biddle's fan coil unit range has been designed specifically to meet the stringent requirements of the UK specification market — suitable for both new-build and refurbishment projects across a wide variety of space types.

BENEFITS

VARIANTS

Precise zoned temperature control across entire building High-efficiency EC motors minimise energy consumption Low noise levels create a comfortable environment

Biddle offers fan coil unit solutions designed specifically for the demands of public buildings and office environments. The ProAir Series is a high-performance, configurable fan coil unit available in two depths — 270mm and 235mm — delivering precise, quiet heating and cooling with full BMS integration and factory-fitted controls. The Isotherm is a slimline concealed fan coil unit designed for installation within restricted ceiling voids, providing flexible zoned climate control across multi-room and multi-tenanted layouts.

CONCLUSION To ensure that Enterprise Wharf achieves Net Zero Carbon status, it utilises modern green heating, cooling and power generation – served by over 80 ProAir 270 FCUs.

Seamless BMS integration for centralised control and energy performance monitoring

PUBLIC BUILDINGS AND OFFICES | FAN COIL UNITS

PROAIR FAN COIL UNITS

The ProAir Series is a reliable and versatile range of high-performing, energy-efficient fan coil units. The ProAir meets the stringent requirements of the UK specification market and delivers quiet, precise heating and cooling across buildings and commercial spaces. Available in two depths, 235mm and 270mm the ProAir can be tailored to meet the exact requirements of any space. FAST DELIVERY Designed and built in the heart of the UK, with a typical lead of 3 weeks, the ProAir Series is available with one of the fastest delivery times on the market. Every unit is assembled in Biddle's purpose-built manufacturing facility, where controls and valve sets can be factory-fitted and tested before leaving site

FLEXIBLE CONTROLS

The ProAir can be supplied as a packaged unit with all controls and valves factory-fitted, or configured to work with any major brand of third-party controller — reducing installation and commissioning time on site. Full BMS integration is supported across all common protocols.

BENEFITS

Available in 235mm and 270mm depths UK-manufactured, rapid delivery Low noise output – ideal for office spaces Factory-fitted controls and PIC valves available

PUBLIC BUILDINGS AND OFFICES | FAN COIL UNITS

DECO FAN COIL UNITS

The Biddle DECO fan coil unit gives you optimum control of the indoor climate by heating, cooling and ventilating the room. Quiet in operation and engineered to distribute conditioned air evenly across occupied spaces without causing discomfort, the DECO is suitable for offices, meeting rooms, hotels, public buildings and care environments alike. Available in five sizes and a wide range of styles, the DECO offers a tailored climate solution for almost any space. COMFORT WHERE YOU NEED IT The DECO features Biddle's innovative Multi Vector Technology adjustable discharge grille – a stack of perforated sheets that allows the user to direct conditioned air precisely to or from the place where they are working. The result is genuine occupant control, delivering comfort exactly where it is needed.

INTELLIGENT CONTROL

The DECO is available with three control levels: basic, airside, and combined air- and waterside controllers. Alongside this, an LCD control panel that can manage up to ten units from a single point. CO₂ sensors, weekly timers and integrated frost protection ensure efficient, automatic operation throughout the working day.

BENEFITS

Adjustable Multi Vector discharge grille for directional comfort

Available with casing or recessed for any installation Five unit sizes covering 140 – 1,800 m³/h airflow

CO₂ sensor and weekly timer for intelligent operation

PUBLIC BUILDINGS AND OFFICES | FAN COIL UNITS

The Comfort Circle is available as both a heater and as a unit capable of both heating and cooling, giving building operators complete year-round climate control from a single, discreet ceiling-mounted unit. It is also suitable for use with low water temperature systems, including heat pumps — supporting Net Zero Carbon building strategies. HEATING AND COOLING IN ONE SMART SUSPENSION SYSTEM Units can be installed either before or after fitting a suspended ceiling, and the adjustable mounting system allows precise positioning in any direction with minimum effort. This makes the Comfort Circle particularly well-suited to office fit-outs and refurbishments where installation time and disruption to building occupants need to be minimised. COMFORT CIRCLE HEATING & VENTILATION In public buildings and offices, keeping walls free for glazing, cladding and architectural features is essential. Biddle's Comfort Circle ceiling cassette fits perfectly within a standard 600×600mm ceiling grid, leaving the entire wall envelope uncompromised. The Comfort Circle's circular air discharge grille draws air in through the perforated centre and, once conditioned, discharges it at a fixed 45° angle towards the floor — delivering even, draught- free distribution across the occupied space.

HEATING & VENTILATION SOLUTIONS

Biddle's heating and ventilation solutions maintain a consistent, comfortable temperature throughout public buildings and office environments. Compatible with modern low-temperature systems including heat pumps, they deliver efficient, quiet performance across spaces of every size and configuration.

BENEFITS

VARIANTS

Precise zoned temperature control across diverse space types High-efficiency EC motors minimise energy consumption Full BMS integration for centralised energy monitoring and control Low noise levels — unobtrusive in high-occupancy environments

The Comfort Circle Cassette delivers heating, cooling and ventilation from a single, discreet ceiling-mounted unit — fitting perfectly within a standard 600×600mm ceiling grid. Its patented circular discharge grille distributes conditioned air evenly at occupant level, making it ideal for open-plan offices, reception areas and public spaces where wall space cannot be compromised.

BENEFITS

Uniform air distribution across the building

Low energy EC fan motors

Discreet installation option – 600mm x 600mm Compatible with LTHW systems

PUBLIC BUILDINGS AND OFFICES | HEATING AND VENTILATION

PUBLIC BUILDINGS AND OFFICES | HEATING & VENTILATION

STYLE AIR CURTAIN 2

BIDDLE CLIMATE CONTROL SOLUTIONS Every Biddle product is designed to work together as part of a complete, integrated climate system. No two retail environments are the same, and no Biddle solution is the same either. We approach every project fresh, combining the right products in the right configuration to solve each client's specific challenges.

Designer air curtain for prestige entrances. Distinctive cylindrical profile available in a range of finishes and custom RAL colours. Climate separation efficiency up to 80%. Horizontal or vertical installation. Modular — covers any door width.

PROAIR FAN COIL UNIT

High-performance fan coil unit for the UK specification market. Available in 270mm and 235mm depths. Very low noise. High-efficiency EC motors. Factory-fitted controls and PIC valves. Full BMS integration. TM65 data available.

SR COMFORT AIR CURTAIN

Market-leading climate separation for high-traffic public entrances. Patented i-sense, CHIPS, Controlled Air Strength and Rectifier technologies. Separation efficiency up to 94%. Six selectable settings. Full BMS integration.

ISOTHERM FAN COIL UNIT

Slimline concealed fan coil unit, designed for installation within the ceiling void where space is restricted. Provides flexible zoned heating and cooling across multi-room layouts. Suitable for new-build and refurbishment office projects.

DOORFLOW AIR CURTAIN 2

Minimalist, filter-free air curtain for office and public building entrances. Available in recessed, cassette, free-hanging and tourniquet styles. Compatible with low water temperature systems. Wi-Fi app control. Mounting heights to 3.5m.

COMFORT CIRCLE CASSETTE

Heating, cooling and ventilation in a single 600×600mm ceiling unit. Patented circular discharge for even, draught-free comfort. Suitable for heat pump systems. Recessed or exposed installation. Low noise. BMS compatible.

PUBLIC BUILDINGS AND OFFICES | CLIMATE CONTROL SOLUTIONS

BIDDLE AIR SYSTEMS

St. Mary’s Road Nuneaton Warwickshire CV11 5AU

T 024 7638 4233 E sales@biddle-air.co.uk www.biddle-air.co.uk

Every effort has been made to ensure descriptions are correct at the time of print. Errors and omissions excepted. PUBLIC BUILDINGS & OFFICES |V 1 |04|202 6

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