Trane CVGF manual Standard Cvgf Features, Environmental Features and Benefits

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Features and Benefits

Standard CVGF Features

The following features are provided as standard with allTrane Model CVGF chillers:

•Hermetic two-stage centrifugal compressor-motor assembly with integral lubrication system and economizer cycle

•Evaporator and condenser assembly

•Prewired instrument and control panel

•Oil charge

•Integral oil heaters

•Isolation pads

•Wiring and oil system interconnection to main control panel

•Advance motor protection

•Two-stage gear drive with economized cycle for high efficiency and high reliability

•Liquid cooled hermetic induction motor; the motor operates at lower temperatures for longer motor life

Optional Features

•Unit and remote wye-delta mounted starters

•Unit mounted, floor mounted, and wall mounted solid state starters.

•Across-the-line, Primary Reactor, and AutoTransformer Remote mounted starter for medium/high voltage

•Marine waterboxes for evaporator and condenser

•Factory-applied thermal insulation

•One-inch deflection spring isolators for vibration-sensitive installations

•Refrigerant available from a local distributor

•Building automation systems (BAS) Interface

•Factory testing

Applications

•Comfort cooling

•Industrial process cooling

Patents

•Polygon drive for refrigeration compressor impellers

•Centrifugal compressor sump demister

•Internal oil filter

•Thermosiphonic oil cooler

•Compressor height and alignment adjustment

•Oil return using hot gas for motive force

•Centrifugal impeller assembly

•Internal oil filter

Orifice System

•Simplified orifice system with improved part load performance down to 20 percent part load

Advanced Heat Transfer Surfaces

•Evaporator and condenser tubes use the latest heat transfer surfaces

•Less refrigerant needed due to advanced patented evaporator design

Compact Size

•Designed with the retrofit and replacement market in mind

•The 400 to 500 NTON sizes can fit through most double-width doors

•Small footprint of the CVGF chiller saves valuable equipment room space

Simple Installation

•Simplified piping; the only water piping required is for the evaporator and condenser

•Simple power connection

•Unit mounted starter eliminates additional jobsite labor requirements

Environmental Features and Benefits

Improved Efficiency:

•High Efficiency: 0.55 kW/Ton at ARI conditions

•Motor cooling vented to economizer cycle, efficiency advantage

•HFC-134 optimized inlet guide vanes and impellers for improved cycle efficiency using computational fluid dynamics

Reduced Emissions:

•Over 30 percent joint reduction in compressor/motor assembly compared to previous designs

•Patented integral heaters imbedded into the compressor casting, no seals no leaks

•Beaded flat gasket technology instead of O-rings, lower susceptibility to developing leaks

•Minimal NPT pipe threads on chiller system, SAE O-ring boss fitting, lower leak potential

•Oil sump internal to compressor/ motor assembly with internal pump/ motor; eliminates vent and drain lines, leak prevention

•Patented internal oil filter prevents leaks and contamination from pipes; filter is isolated and easily replaced

•Advanced evaporator design minimizes the refrigerant charge; a reduced charge reduces the exposure to the environment in the event of a catastrophic charge loss

Additional Features and Benefits

•Patented polygon attachment instead of a keyed shaft, self-balancing

•Easy to replace motor terminals

•Motor/stator assembly is easily removed; speed assembly can be removed independent of the high- speed assembly

•Rolling element bearings

•Hydrodynamic bearings

•Advanced evaporator design: no eliminator necessary with an advanced suction baffle design

•All metric fasteners

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CTV-PRC001-GB

 

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Contents Centrifugal Water Chillers Introduction IntroductionContents Features and Benefits Standard Cvgf FeaturesEnvironmental Features and Benefits Additional Features and BenefitsMicroprocessor Controls with CH530 DynaView Operator InterfaceServiceability TechViewSoft Loading Feedforward Adaptive ControlFast Restart Chiller-Tower Optimization Two-Stage Compressor Widens the Application Range Why Centrifugal Compressors SurgeTwo-Stage Compressors Surge Less and Later Temperature Condenser Water LimitationsWater Pumps Water FlowGeneral Data Table GD-1 Model Cvgf DescriptionGeneral English UnitsShipment and Assembly Jobsite ConnectionsStandard Features Field ConnectionHeat Exchanger Control Motor Control and Compressor ProtectionControls Features Extended Operation PackageBase-Loading Control Hot-Water ControlOil-Temperature Protection Phase-Loss ProtectionTracer Chiller Controller Loss of Water-Flow ProtectionMomentary Power Loss High Motor-Winding Temperature ProtectionCurrent Overload Protection Surge Detection ProtectionDimensions PhysicalPhysical Dimensions Model Cvgf Water Connection Pipe SizeMechanical Specifications Unit Control Panel Isolation Pads Refrigerant and Oil ChargePainting InsulationLength Energy and Power and Capaclty ConversionServicing of equipment referred to in this publication
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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.
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