Trane CVGF manual Short-Cycling Protection, Restart Inhibit Free Starts

Page 21

Controls

Standard Protections

Short-Cycling Protection

This function mimics heat dissipation from a motor start using two setpoints:

Restart Inhibit Free Starts and Restart Inhibit Start-to-Start Timer. This allows the CVGF to inhibit too many starts in a defi ned amount of time while still allowing for fast restarts. The default for CVGF is 3 Free Starts and a 20 minute Start-to-Start Timer. The control panel generates a warning when the chiller is inhibited from starting by this protection.

Restart Inhibit Free Starts

This setting will allow a maximum number of rapid restarts equal to its valve. If the number of free starts is set to 1, this will allow only one start within the time period set by the Start-to-Start Time setting. The next Start will be allowed only after the Start-to-Start timer has expired. If the number of free starts is programmed to 3, the control will allow three starts in rapid succession, but thereafter, it would hold off on a compressor start until the Start-to-Start timer expired.

Restart Inhibit Start-to-Start Time setting

This setting defi nes the shortest chiller cycle period possible after the free starts have been used. If the number of free Starts is programmed to 1, and the Start-to-Start Time setting is programmed to 10 minutes. the compressor will be allowed one start every 10 minutes The Start-to-Start time is the time from when the motor was directed to energize to when the next prestart is issued.

CTV-PRC001-E4

21

Page 20 Page 22
Image 21
Page 20 Page 22
Contents Model Cvgf Centrifugal Water ChillersIntroduction Introducing Trane’s Model Cvgf Centrifugal Water ChillerIntroduction Contents Standard Cvgf Features Features and BenefitsFeatures and Benefits Environmental Features and BenefitsAdditional Features and Benefits At-a-glance status CD-ROM Features and Benefits Tracer TU InterfaceBuilding Automation and Chiller Plant Control Features and Benefits Tracer AdaptiViewTM ControllerIntegrated Comfort System ICS Chiller-Tower OptimizationTwo-Stage Compressors Surge Less and Later Why Centrifugal Compressors SurgeApplication Considerations TemperatureCondenser Water Limitations Water PumpsWater Treatment Application ConsiderationsTable GD-1 Model Cvgf Description General Data60 Hz SI Units and English Units General DataSupply and Motor Lead Wiring and Connections Shipment and AssemblyJobsite Connections Controls Standard FeaturesExtended Operation Package ControlsBase-Loading Control Hot-Water ControlStandard Protections Phase-Unbalance Protection Oil-Temperature ProtectionPhase-Loss Protection Phase Reversal/Rotation ProtectionPower Factor and kW Measurement High Motor-Winding Temperature ProtectionCurrent Overload Protection Surge Detection ProtectionRestart Inhibit Free Starts Short-Cycling Protection60 Hz SI English Units Physical DimensionsModel Cvgf Water Connection Pipe Size Physical DimensionsMechanical Specifications Mechanical Specifications CondenserUnit Control Panel Isolation Pads Compressor-Motor StarterRefrigerant and Oil Charge PaintingPSI Conversion Table
Related manuals
Manual 24 pages 15.16 Kb

CVGF specifications

The Trane CVGF series is a revolutionary innovation in the world of commercial HVAC systems, designed to deliver unparalleled performance and energy efficiency. This air-cooled chiller line is specifically engineered to meet the demands of modern buildings, making it an ideal choice for various applications such as offices, hospitals, and educational institutions.

One of the standout features of the CVGF series is its use of the Trane Adaptive Control technology. This advancement provides the system with real-time data analytics, allowing it to automatically adjust cooling output based on environmental conditions and load requirements. This level of adaptability not only enhances occupant comfort but also contributes to significant energy savings, aligning with sustainability goals.

The CVGF chillers also incorporate a robust and efficient scroll compressor, which operates quietly and minimizes vibration. This design choice ensures reliability and longevity while reducing operational noise levels, making it suitable for installations in noise-sensitive environments. Furthermore, the scroll compressor's efficiency plays a crucial role in achieving a higher coefficient of performance (COP), which translates to lower energy costs.

In terms of environmental responsibility, the CVGF series is designed with an eco-friendly refrigerant that supports lower global warming potential (GWP). Committed to sustainability, Trane ensures that these chillers not only meet but exceed regulatory requirements, allowing businesses to operate with a reduced carbon footprint.

Another remarkable characteristic of the CVGF line is its modular design, which simplifies installation and maintenance. The units are compact and can be easily integrated into existing infrastructure, minimizing disruption during upgrades or replacements. The straightforward maintenance protocols further enhance the system’s uptime, ensuring users enjoy consistent and reliable cooling performance.

Moreover, the CVGF chillers are equipped with advanced monitoring capabilities, accessible through Trane’s proprietary software. This feature enables facility managers to oversee system performance from any location, facilitating proactive adjustments and timely maintenance interventions.

Overall, the Trane CVGF series stands out as a cutting-edge solution for effective and sustainable cooling in commercial applications. By combining innovative technologies, energy-efficient design, and user-friendly features, the CVGF offers a comprehensive approach to achieving optimal climate control while meeting the challenges of the future.
Top Page Image Contents