Mechanical (10–15Ton)Specifications

General

Units shall be assembled on heavy gauge steel mounting/lifting rails and shall be weatherproofed. Units shall include hermetic scroll compressors, plate fin condenser coil, fan(s) and motor(s), controls and complete factory installed operating charge of oil and R-22 refrigerant. Operating range shall be between 115°F and 0°F. Units shall be either UL or CSA certified and rated in accordance with ARI Standard 550/590-98.

Casing

Unit casing shall be constructed of

18-gauge zinc coated heavy gauge, galvanized steel. Exterior surfaces shall be cleaned, phosphatized and finished with a weather-resistant baked enamel finish. Units surface shall be tested to withstand a 500 consecutive hour salt spray durability test. Units shall have removable panels which allow access to major components and controls.

Refrigeration System

Unit shall have two separate and independent refrigeration circuits. Each refrigeration circuit shall have integral subcooling circuits. Refrigeration filter driers and sight glasses shall be provided as standard.

Compressors

Unit shall have twoTrane direct-drive hermetic scroll compressors with centrifugal oil pump and provide positive lubrication to all moving parts. Motor shall be suction gas-cooled and shall have a voltage utilization range of plus or minus 10 percent of nameplate voltage. Crankcase heater, internal temperature and current-sensitive motor overloads shall be included for maximum protection. External high and low pressure cutout devices shall be provided.

Condenser Coil

Coils shall be 3/8” copper tubes mechanically bonded to configured aluminum plate fin as standard. Factory

pressure and leak tested to 420 psig minimum air pressure and design working pressure shall be 376 psig. Metal grilles with PVC coating for coil protection are optional.

Evaporator

The evaporator shall have independent dual refrigerant circuits.The evaporator shall be stainless steel braze plate construction with a waterside working pressure of 350 psig and a refrigerant- side working pressure of 300 psig. One water pass with a drain connection.

Condenser Fan and Motor(s)

Direct-drive, statically and dynamically balanced propeller fan(s) with aluminum blades and electro-coated steel hubs shall be used in draw-thru vertical discharge position. Either permanently lubricated totally enclosed or open construction motors shall be provided and shall have built-in current and thermal overload protection. Motor(s) shall be ball bearing type.

Controls

The chiller shall be completely factory wired with necessary controls and contactor pressure lugs or terminal block for power wiring. Control wiring shall be 24-volt control circuit which includes fusing and control transformer.Time delay timers to prevent compressors in dual compressor units from simultaneous start-up and anti-recycle timers shall be standard.

Low Ambient Operation

Standard units shall start and operate to approximately 50°F. Optional head pressure control accessory permits operation at lower temperature extremes (see “General Data” section of this catalog).

OPTlONS

Field Installed

Low Ambient Head Pressure Control

Shall modulate the rpm of unit outdoor fan motor in response to unit head pressure. Accessory provides unit cooling operation to outdoor temperatures of 0°F.

Vibration Isolation Packages

Shall reduce transmission of noise and vibration to building structures, equipment and adjacent spaces. Packages shall be available in either neoprene-in-shear or spring-flex types.

Condenser Coil Guard

Metal grille with PVC coating shall be provided to alleviate coil damage.

Power Supply Monitor

Shall provide protection against phase loss/reversal, phase imbalance, incorrect phase sequence and low voltage.

ElapsedTime Meter/Number Starts Counter

Shall record number of compressor starts and operating hours of each compressor.

Integrated Comfort Systems (ICS) Interface

Shall provide the ability to communicate with theTraneTracer building management system viaTCM.

Flow Switch

Required as a safety interlock to prevent operation of unit without evaporator flow.

Gauges

Field-installed gauges monitor suction and discharge pressures.

Factory Installed

Black Epoxy Coil

The black epoxy coating provides excellent protection against aluminum corrosion.

Hot Gas Bypass

Allows unit operation below the minimum step of unloading.

Low Leaving SolutionTemperature Applications

Allows leaving solution temperatures as low as 20°F.This capability is standard from the factory on both 10 and 15-ton models.

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CG-PRC007-EN

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Trane CG-PRC007-EN manual Mechanical 10-15TonSpecifications
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CG-PRC007-EN specifications

The Trane CG-PRC007-EN is a robust product within the Trane line of commercial rooftop units, designed to meet the heating and cooling needs of various commercial applications. This unit showcases advanced technologies and features aimed to enhance efficiency, reliability, and user comfort.

One of the standout characteristics of the CG-PRC007-EN is its commitment to energy efficiency. The unit incorporates high-efficiency compressors and a variable-speed fan motor, ensuring that the system can adjust its operation based on the demand, thus optimizing energy consumption. This is particularly advantageous in commercial settings, where climate control requirements can fluctuate throughout the day.

Additionally, the unit is engineered with a smart control system that allows for easy integration with building management systems. This feature enables real-time monitoring and adjustments, helping facility managers maintain optimal comfort levels while also minimizing operational costs. Users are able to access performance data and system diagnostics remotely, promoting proactive maintenance and reducing downtime.

Durability and longevity are critical factors for commercial HVAC systems, and the CG-PRC007-EN is designed with this in mind. The unit features a corrosion-resistant cabinet and components that withstand harsh weather conditions, ensuring reliability in outdoor installations. Its robust construction helps mitigate noise levels, resulting in a quieter operation that is ideal for noise-sensitive environments.

Another key technology within this unit is its advanced airflow management system. This system is designed to provide consistent airflow, enhancing indoor air quality and ensuring that every corner of the space benefits from appropriate heating or cooling. The CG-PRC007-EN also offers a variety of customization options for air filters, ensuring that the specific needs of each application are met.

Furthermore, the unit is compliant with the latest environmental regulations, including those set forth by the EPA. It utilizes eco-friendly refrigerants that minimize environmental impact without sacrificing performance. This makes the CG-PRC007-EN an excellent choice for companies committed to sustainability and energy efficiency.

In summary, the Trane CG-PRC007-EN combines innovative technology, energy efficiency, and reliability, making it an ideal solution for commercial heating and cooling needs. Its advanced features, durability, and eco-friendly design position it as a leader in the commercial rooftop unit market.
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