Overview
Halton's chilled beams are designed to improve indoor air quality and offer flexibility in building design. They are suitable for various environments, including offices and hospital wardrooms, and can be installed in both exposed and concealed settings. The product range includes active and passive chilled beams, as well as service beams that integrate multiple building services.

System Description
The chilled beam system is an air conditioning solution that uses water for efficient heat transfer, providing cooling, heating, and ventilation. It operates on the dry cooling principle to prevent condensation and is designed for spaces requiring good indoor climate control.

Ventilation
Active chilled beams use primary air to induce room air circulation, ensuring uniform air quality. Passive systems typically use ceiling or wall diffusers for air distribution.

Cooling and Heating
Active beams offer high cooling capacities by recirculating room air through a heat exchanger. Heating integration is recommended when low heating capacity is sufficient, and window U-values prevent downdrafts.

System Design Strategies
Two main strategies are outlined: Adaptable and Traditional. The Adaptable strategy allows for flexibility in space usage and layout changes, while the Traditional strategy focuses on meeting initial design conditions with lower investment costs but higher costs for future changes.

Design Considerations
Key factors include indoor climate conditions, system flexibility, efficiency in logistics, and life cycle performance. The system should be designed to meet specific indoor climate targets, considering factors like room temperature, air velocity, and sound pressure levels.

Important Technical Considerations
Ventilation should ensure adequate airflow rates and avoid draughts. Cooling capacities should align with airflow rates to maintain comfort. Heating systems should not be over-dimensioned, and window draughts should be minimized.

1. Coil Capacity Calculation
Calculate the coil capacity using HIT Design by inputting the inlet and outlet water temperatures and target water flow rate. Compare the coil capacity against the requirement, noting capacities transferred by water and air sides.

2. Chilled Beam Location and Velocity Control
Define the location and number of chilled beams, allowing for asymmetric positioning. Adjust the throw pattern and velocity conditions using HVC positions to adapt to load variations.

3. Air Quality Control Adjustment
Define the HAQ air flow rate to match the required room air flow rate. Adjust the air flow rate at a specified duct pressure level using HAQ control.

4. Space Results and Unit Performance
Verify operation parameters against system conditions to ensure they correspond to the system's requirements.

5. Design Data in Heating
Conduct analysis similar to the cooling case to ensure proper heating performance.

6. Management of Room Conditions
Implement air flow measurement by measuring the chamber pressure of the chilled beam. Adjust air and water flow rates using balancing dampers and valves. Use adaptable systems for efficient commissioning and operation.

7. Room Control and Communication
Control room thermal conditions using two-way valves and various control methods. Implement communication over Ethernet for remote monitoring and operation.

8. Luminaire and Integrated Services Selection
Integrate luminaires and other services into chilled beams for improved indoor climate, flexibility, and reduced installation costs. Include occupancy sensors, control valves, and space for sprinklers.

9. Chilled Beam Selection Example
Provide examples of chilled beam selection for different room configurations, detailing cooling and heating capacities, air flow rates, and operational parameters.

Room Specifications
Room A: Size: 4.2 x 2.7 x 3.0 m, Cooling Capacity: 674 W, Heating Capacity: 411 W, Inlet/Outlet Water Temperature: 15.0/19.1 °C for cooling, 35.0/29.8 °C for heating, Water Massflow: 0.030 kg/s for cooling, 0.020 kg/s for heating, Supply Air Temperature: 18.0 °C for cooling, 20.0 °C for heating, Sound Pressure Level: 21 Lp.
Room B: Size: 4.2 x 4.0 x 3.0 m, Total Cooling Power: 956 W, Inlet/Outlet Water Temperature: 15.0/18.8 °C, Water Massflow: 0.045 kg/s, Supply Air Temperature: 18.0 °C, Sound Pressure Level: 24 Lp.
Room C: Size: 4.2 x 4.0 x 3.0 m, Total Cooling Power: 1116 W, Inlet/Outlet Water Temperature: 15.0/20.1 °C, Water Massflow: 0.040 kg/s, Supply Air Temperature: 18.0 °C, Sound Pressure Level: 19 Lp.
Room D: Size: 4.2 x 8.1 x 3.0 m, Total Cooling Power: 2394 W, Inlet/Outlet Water Temperature: 15.0/20.7 °C, Water Massflow: 0.060 kg/s, Supply Air Temperature: 18.0 °C, Sound Pressure Level: 30 Lp.