Trane CCAF, CGWF manual Features Benefits Options

Page 7

Features and

Benefits Options

Options

Hot Gas Bypass: Hot gas bypass option allows unit operation below the minimum step of unit unloading. The regulator valve, along with all associated refrigerant piping and electrical wiring, are factory installed and tested on one refrigeration circuit. Unit does not start in hot gas bypass mode. If the unit operates in bypass mode for 30 minutes without a call for cooling, it will pump down and shut off. Unit starts immediately upon a further call for cooling.

Chilled Water Reset: Front panel settable control, microprocessor based control strategy, and field-installed sensor for ambient temperature based reset are included in this option. Return water reset sensor is standard, but panel controller and control strategy must be ordered as an option.

Tracer Summit Communication Interface: Permits bi-directional communication to the Trane Integrated Comfort system.

LonTalk LCI-C Communication Interface: Provides the LonMark chiller profile inputs/outputs for use with a generic building automation system.

Remote Input Options

Remote chilled water setpoint input (4-20mA/2-10Vdc), compressor inhibit which locks out the second compressor on each circuit reducing the kW draw or both.

Control Output Options Programmable relays provided to indicate: Compressor running, maximum capacity, chiller limit mode, warning (informational diagnostic), alarm latching (shutdown diagnostic), alarm nonlatching (shutdown diagnostic), alarm latching or nonlatching.

Ice Making Controls: In ice-making mode, the unit will operate fully loaded in response to jobsite supplied contact closure. Ice making will terminate when the return fluid temperature falls below an adjustable setpoint (minimum 20°F [-6.7°C]). When not in ice making mode, unit will provide modulating capacity control based on leaving chilled fluid temperature (20-55°F)[-6.7°C to 12.8°C].

Unit Mounted Disconnect Switch: Non- fused molded case disconnect switch factory installed in control panel for disconnecting main three-phase power.

Isolators: Neoprene-in-shear isolators for field installation under unit frame.

Sound Attenuation: Factory-installed acoustical attenuation for applications where extremely low sound level is required.

Water Regulating Valves: Field-installed valves provide means for control of head pressure.

Outdoor Temperature Sensor: Field- installed outdoor temperature sensor with an adjustable setpoint provides means for low ambient lockout.

Condenser Water Temperature Sensor: Factory installed temperature sensor provided for microprocessor display.

CG-PRC012-EN

7

Page 6 Page 8
Image 7
Page 6 Page 8
Contents Scroll Liquid Chillers Introduction Contents Single-Source Responsibility Features BenefitsEasy Serviceability Build To OrderOperating Torque Scroll Chiller Energy Usage SavingsDischarge-Third Orbit GeneralInlet-First Orbit Compression-Second OrbitOptions Features Benefits OptionsStandalone Controls Safety ControlsControls Human InterfacesEasy Interface to a Generic Building Management System Chiller Enable/DisableChiller Hardwire Inputs Include Programmable Relays and AlarmsRequired Options Additional Features That May Be UsedExternal Trane Devices Required Easy Documentation for Regulatory Compliance Energy EfficiencyKeeping Operators Informed Swift Emergency ResponseRemote Condenser Unit LocationWater Treatment Water PumpsModel Number Description Table GD-1. General data Cgwf water-cooled chiller General DataTable GD-2. General data Ccaf compressor chiller Compressor Chiller Ccaf Selection Example Scroll Liquid Chiller Cgwf Selection ExampleData PerformanceTable PD-1 Hz Cgwf performance data in English units COP Table PD-2 Hz Cgwf performance data in Metric unitsTable PD-3 Hz Cgwf performance data in English units Table PD-4 Hz Cgwf performance data in Metric units Table PD-7 Hz Ccaf performance data in English units Table PD-8 Hz Ccaf performance data in English units Table PD-9 Hz Ccaf performance data in Metric units Part Load Figure PAF-1. Ethylene glycol performance adjustment factors Performance AdjustmentTable PAF-2. Pressure drop correction factor Chart PD-1. Cgwf evaporator Chart PD-2. Cgwf condenser Table E-1. Electrical data for Cgwf water-cooled chillers Electrical Data ConnectionsElectrical Data Connections Electrical Data Connections Field Layout Electrical Data Connections Field Layout Dimensional Cgwf 40-50 Ton Dimensional Data Ccaf 20-30 Ton Ccaf 40-60 Ton Table W-1. Weights, Cgwf chillers WeightsTable W-2. Weights, Ccaf compressor chillers Mechanical Specifications Starter Trane

CCAF, CGWF specifications

The Trane CGWF and CCAF series are notable advancements in the field of commercial air conditioning and heating solutions. Designed to provide efficient climate control, these units are favored for their reliability, energy efficiency, and innovative technologies.

The Trane CGWF series is characterized by its water-cooled chiller design, making it suitable for a variety of commercial applications. Its primary feature is the use of the eco-friendly refrigerant R-134a, which not only minimizes environmental impact but also complies with evolving regulations regarding refrigerants. The CGWF models are equipped with high-efficiency scroll compressors, which contribute to reduced energy consumption while ensuring optimal performance.

The Series also boasts a range of cooling capacities, making it adaptable to various building sizes and requirements. The intelligent control systems embedded within the CGWF units allow for precise monitoring and adjustment of temperature settings, contributing to stable indoor conditions. Additionally, these chillers feature a robust construction that enhances durability, ensuring long-life service in demanding environments.

On the other hand, the Trane CCAF series reflects an advanced approach to air handling. These units are built with focus on energy efficiency as well, featuring the latest in variable frequency drive (VFD) technology. VFDs enable the system to adjust motor speed according to load requirements, resulting in significant energy savings and lower operational costs. The CCAF series also incorporates advanced filtration options, which improve indoor air quality by ensuring that particulates and contaminants are effectively removed from the air.

A notable characteristic of the CCAF models is their modular design, allowing for easy installation and maintenance. The plug-and-play configuration simplifies the setup, accommodating various spaces without requiring extensive modifications. Furthermore, both the CGWF and CCAF series support connectivity with advanced building management systems, facilitating real-time monitoring and control through smart technology.

In summary, the Trane CGWF and CCAF units stand out for their exceptional efficiency, cutting-edge technology, and flexibility in application. Their design and features reflect a commitment to sustainability and innovation, making them a compelling choice for businesses looking to optimize their HVAC systems while meeting contemporary environmental standards. With Trane’s reputation for quality and reliability, these series are trusted solutions for commercial climate control needs.
Top Page Image Contents