period two

Condensers

notes

A reduction in condensing pressure lessens the power required to compress the refrigerant. Unfortunately, if the condensing pressure falls too low, the expansion valve may not be able to produce the flow of liquid refrigerant needed to satisfy the demand at the evaporator. In some systems, as the condensing pressure drops, the compressor suction pressure also drops, resulting in evaporator frosting and possible compressor shutdown due to a low-pressure safety device.

While it is not essential to control condensing pressure to a constant value, provisions should be made to control it within acceptable limits.

Condensing Temperature Control

flow-regulating valve

condenser

condenser water pump

Figure 17

One common method of controlling the capacity of a water-cooled condenser is to vary the rate at which water flows through the condenser.

For example, assume a water-cooled condenser is piped to a municipal water system. To control the capacity of the condenser, a flow-regulating valve is installed on the leaving-water side of the condenser. As the load on the system decreases, the regulating valve senses the lowering condensing pressure. The valve reduces the flow rate of the water until the heat-rejection rate of the condenser balances the system load at an acceptable pressure and temperature.

TRG-TRC005-EN

11

Page 17 Page 19
Page 18
Image 18
Trane trg-trc005-en manual Condensing Temperature Control
Page 17 Page 19

trg-trc005-en specifications

The Trane TRG-TRC005-EN is a sophisticated and versatile HVAC control system designed for modern commercial buildings. As part of Trane's innovative lineup, this device offers advanced functionalities to enhance energy efficiency, comfort, and operational ease. The TRG-TRC005-EN is equipped with cutting-edge technologies that make it an essential tool for facility managers and HVAC professionals.

One of the main features of the TRG-TRC005-EN is its comprehensive control capabilities. This system allows for precise monitoring and management of heating, ventilation, and air conditioning systems, ensuring optimal indoor air quality and thermal comfort. With its intuitive interface, users can easily navigate through various settings, enabling them to customize the environment per their specific needs.

The TRG-TRC005-EN integrates seamlessly with Trane’s building management systems, offering enhanced connectivity for efficient control. This connectivity allows for real-time data analytics, ensuring users can make informed decisions based on the system’s performance. Furthermore, the device supports both wired and wireless communication protocols, enhancing its flexibility for different building setups.

Energy efficiency is a hallmark of the TRG-TRC005-EN. It features advanced algorithms that actively optimize energy usage, resulting in reduced operational costs. The system can assess external weather conditions and adjust HVAC settings accordingly, promoting energy conservation without compromising comfort.

Additionally, the TRG-TRC005-EN includes built-in diagnostics to monitor system performance continuously. This feature helps in early detection of potential issues, allowing for timely maintenance and minimizing downtime. The diagnostic capabilities extend to monitoring energy consumption, providing valuable insights for energy management strategies.

Another significant characteristic of the TRG-TRC005-EN is its user-centered design. The system offers customizable user roles, allowing different levels of access depending on the user’s needs. This aspect not only streamlines operation but also enhances security within the facility.

In summary, the Trane TRG-TRC005-EN is a powerful HVAC control solution that combines advanced technologies with user-friendly features. Its ability to optimize energy efficiency, enhance comfort, and provide real-time monitoring makes it an invaluable asset for managing modern commercial buildings efficiently. With the TRG-TRC005-EN, users can be assured of a reliable, effective, and intelligent system that meets the demands of today’s interconnected world.
Top Page Image Contents