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Emerson VE, VH, DE, DH manual Chilled Water Systems, Glycool Chilled Glycol Cooling Systems

Models: VE DH VH DE

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Introduction

1.1.3Chilled Water Systems

These systems utilize a central chiller and control cooling by modulating a control valve in the chilled water line.

Cooling

Modulating output water valve

Heating

Three stages of electric reheat standard; steam/hot water optional

Humidification

Infrared standard, steam grid and steam generating optional

Dehumidification

Chilled water valve opens proportionally in response to room needs

1.1.4GLYCOOL™ (Chilled Glycol Cooling) Systems

GLYCOOL™ systems have all of the features of a compressorized water or glycol system, plus a sec- ond cooling coil that is connected into the water circuit. When fluid temperature is sufficiently low (below room temperature), cooling is provided by circulating the fluid through the second cooling coil (with the flow controlled by a motorized valve). This is then the primary cooling source, greatly reduc- ing the compressor operation.

Cooling

Modulated cooling valve opens proportionally to match room needs (primary), two or four stages of mechanical refrigeration (secondary)

Heating

Three stages of electric reheat standard

Humidification

Infrared standard; steam generating optional

Dehumidification

Utilizes the lag compressor

1.1.5Dual Source Cooling Systems

This system has all the features of a compressorized system but adds a second cooling coil that is con- nected to a source of chilled water. This second coil is controlled by a modulating control valve. It is the primary source of cooling and dehumidification so compressor operation is reduced.

Cooling

Second coil opens proportionally in response to the room needs (primary), two or four stages of mechanical refrigeration (secondary)

Heating

Three stages of electric reheat standard

Humidification

Infrared standard; steam generating optional

Dehumidification

Standard Controls use the lag compressor. Advanced Controls use the chilled water valve and then the lag compressor if required by the load.

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Emerson VE, VH, DE, DH manual Chilled Water Systems, Glycool Chilled Glycol Cooling Systems, Dual Source Cooling Systems
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VE, DH, VH, DE specifications

Emerson is a well-known brand in the field of automation solutions, offering a range of products that cater to various industries. Among its diverse portfolio, Emerson’s products like DE (Digital Electronics), VH (Variable Frequency Drives), DH (Distributed Control Systems), and VE (Valve Positioners) stand out for their advanced features, cutting-edge technologies, and unique characteristics.

Digital Electronics (DE) from Emerson represents the backbone of modern automation systems. These devices are characterized by their highly reliable digital communication capabilities, providing robust solutions for process monitoring and control. DE products integrate seamlessly with various automation platforms, allowing for easy data exchange and system interoperability. The advanced analytics embedded in these systems enable predictive maintenance strategies, enhancing overall operational efficiency.

Variable Frequency Drives (VH) are integral to motor control technologies, maximizing energy efficiency in various applications. Emerson's VH drives are designed for flexibility, supporting multiple motor types and configurations. These drives utilize pulse width modulation (PWM) technology, allowing for precise speed control and improved application performance. Their built-in protection features help extend motor life, prevent downtime, and reduce maintenance costs. Furthermore, the user-friendly interfaces of VH drives facilitate quick setup and troubleshooting.

Distributed Control Systems (DH) from Emerson provide a holistic approach to managing complex industrial processes. They enable centralized control while ensuring that local operations continue seamlessly. DH systems are characterized by their modular architecture, making them highly scalable and adaptable to changing operational needs. Advanced control algorithms within these systems help optimize processes, ensuring maximum productivity. Additionally, their enhanced cybersecurity features protect critical industrial operations from potential threats.

Emerson's Valve Positioners (VE) play a crucial role in regulating flow and pressure in various processes. These devices provide precise positioning capabilities, enhancing the performance of control valves. The VE systems incorporate smart technologies such as adaptive control and diagnostics, allowing them to self-tune and deliver accurate performance over time. Their compact design and robust build ensure they operate effectively in challenging environments.

In summary, Emerson's DE, VH, DH, and VE offerings embody the latest innovations in automation technology. Their main features, including digital communication, energy efficiency, scalability, and precision control, cater to the diverse demands of modern industries. With these products, Emerson not only enhances operational efficiency but also paves the way for intelligent automation solutions that are crucial for the future of industrial processes.