Glossary

constant-volume fan, packaged so that the airflow paths are in series.

This provides a constant volume of supply air to the space when operating.

static regain duct design method Method of designing an air duct system that strives to maintain a fairly consistent static pressure throughout the entire duct. Recommended for sizing the supply ducts upstream of the terminal units in a VAV system. The design of a static regain duct system often requires the use of a computer program.

supply air Conditioned air delivered to a space.

supply duct static-pressure control Method of VAV system static-pressure control that mounts the static-pressure sensor somewhere in the supply duct system, allowing the supply fan to decrease speed and lower the static pressure in the system under part-load conditions.

supply duct system Transports the primary air from the central air handler to the VAV terminal units and then on to the space diffusers.

system resistance curve Plot of the static pressure drop that the system (including the supply ductwork, duct fittings, terminal units, diffusers and return grilles, coils, filters, dampers, and so forth.) creates over a range of airflows.

unoccupied mode Typical nighttime operating mode of the system. The building does not require ventilation because it is not occupied, and the space temperatures are controlled to unoccupied set points.

variable-pitch blade control Method of fan modulation used on vaneaxial fans. The capacity of the fan is modulated by adjusting the pitch angle of the actual fan blades.

variable-air-volume system Type of air-conditioning system that varies the volume of constant-temperature air supplied to meet the changing load conditions of the space.

VAV reheat terminal unit Type of single-duct VAV terminal unit that can provide space heating using a small heating coil.

VAV terminal unit Sheet-metal assembly installed upstream of space diffusers. Its purpose is to vary, with the purpose of varying the quantity of air delivered to the conditioned space.

warm-up/cool-down mode Typical operating mode for transition from the unoccupied mode to the occupied mode. It establishes the space occupied comfort conditions as rapidly as possible because they were allowed to drift from occupied set point during the unoccupied mode, usually to save energy.

TRG-TRC014-EN

89

Page 92
Image 92
Trane TRG-TRC014-EN manual Glossary

TRG-TRC014-EN specifications

The Trane TRG-TRC014-EN is a comprehensive technical resource guide that serves as an essential tool for HVAC professionals and engineers looking to enhance their understanding of Trane's commercial HVAC systems. This guide provides an in-depth examination of Trane’s advanced technologies, key features, and design characteristics that position their products as industry leaders in heating, ventilation, and air conditioning.

One of the standout features of the TRG-TRC014-EN is its focus on energy efficiency. Trane continuously works on incorporating cutting-edge technologies that minimize energy consumption while maximizing performance. This includes the use of variable speed compressors and advanced control systems that adapt the HVAC operation according to real-time demand, significantly reducing energy costs for end users.

The guide also highlights Trane’s commitment to sustainable practices. The incorporation of environmentally friendly refrigerants and compliance with regulatory standards ensures that Trane units not only deliver comfort but also contribute to lower environmental impact. The guide provides detailed specifications on these refrigerants, allowing engineers to make informed decisions in line with environmental policies.

Another important aspect of the TRG-TRC014-EN is its technical information regarding system design and application. With comprehensive data on airflow, capacity calculations, and installation techniques, the guide serves as a valuable resource in the design phase of HVAC projects. This ensures that systems are optimized for performance and meet the specific needs of any given commercial space.

Additionally, the TRG-TRC014-EN addresses integration with smart building technologies. Trane units are designed to easily integrate with building management systems (BMS), enabling better monitoring and control of HVAC operations. This compatibility enhances operational efficiency and supports predictive maintenance, reducing downtime and servicing costs.

Moreover, the guide emphasizes Trane’s extensive warranty and service support. Understanding that customer satisfaction extends beyond the sale, Trane provides comprehensive service options that assure users of reliable and prompt support throughout the lifecycle of their HVAC systems.

In conclusion, the Trane TRG-TRC014-EN stands as an essential guide for HVAC professionals seeking to leverage Trane’s innovative technologies and design features. With a strong emphasis on energy efficiency, sustainability, technical accuracy, smart integration, and robust support, this guide underscores Trane's position as a leader in the HVAC industry.