Mechanical (20–60Ton)Specifications

hardware, software and interconnecting wiring are in proper operating condition.

The modules (boards) shall be protected to prevent RFI and voltage transients from affecting the board’s circuits. All field wiring shall be terminated at separate, clearly marked terminal strip. Direct field wiring to the I/O boards is not acceptable.

The microprocessor’s memory shall be nonvolatile EEPROM type requiring no battery or capacitive backup while maintaining all data.

2

Zone sensor will be available for zone temperature reset.

3

The Human Interface Panel’s keypad display character format shall be 40 characters x 2 lines.The character font shall be 5 x 7 dot matrix plus cursor.The display shall be Supertwist Liquid Crystal Display (LCD) with blue characters on a gray/green background which provides high visibility and ease of interface.The display format shall be in clear English. Two or three digit coded displays are not acceptable.

4

The keypad shall be equipped with

16 individual touch-sensitive membrane key switches.The switches shall be divided into four separate sections and be password protected from change by unauthorized personnel.The six main menus shall be STATUS, SET POINTS, DIAGNOSTICS, SETUP, CONFIGURATION and SERVICE MODE.

Standard power connections include main three-phase power and a single 115-volt, 24-volt single-phase connection that handles unit controls.

Unit accepts any of these jobsite supplied contact closures for:

External Auto/Stop — A contact closure that will start and stop the unit operation.

External Chilled Solution Interlock — A chilled solution pump interlock in combination with a flow switch is not required for unit protection since the unit controller senses loss of flow. If additional flow protection is required, or if the pump contactor is used to schedule the unit, this input may be used.

Kw Demand Limit — Unit will only be allowed to operate on user selected quantity of compressors in order to maintain the building demand limit.

Ice Building

Two ice building modes are optional and can be ordered on the unit. The two modes are one time ice build mode and continuous ice build mode.

Miscellaneous Options

Trane Communications Interface Module (TCI)

Provides capability to communicate with aTrane ICS™ system.

Compressor Current Sensing (CSM)

This option measures and averages amp draw on each compressor.

Unit Mounted Disconnect

Non-fused, factory installed, and located inside the main control box, this disconnect switch features an external handle that allows the operator to disconnect unit power without having to open the control box door.

Isolators

Spring or neoprene-in-shear isolators available for jobsite installation.

Superheat/Sub-Cooling

In place of externally mounted refrigerant gauges, a module can be ordered that will calculate and display on the Human Interface (HI) each circuit’s superheat and subcooling temperatures.

Hot Gas Bypass

Although unnecessary on scroll chillers for comfort applications (due to scroll

cycling capabilities), hot gas bypass is still available for applications requiring close temperature control at low load conditions.

Generic Building Automation System (GBAS)

Two modules are available to integrate building automation systems other than Trane. The modules are designed for either 0-5 vdc or 0-10 vdc signals.

Remote Human Interface (RHI) Panel

The Remote Human Interface Panel can perform all the same functions as unit mounted Human Interface Panel, with the exception of the Service Mode.

The field installed RHI can monitor and control up to 4 chillers. The RHI is suitable for mounting inside a building, up to 5,000 feet from the unit. The RHI is wired to the IPCB mounted in each chiller with a wire pair communication wiring and 24V control wiring.

Remote Set point Potentiometer

Field installed option that allows remote adjustment of the leaving solution set point.

Zone Sensor (Chilled Solution Reset)

Field installed zone sensor that allows the leaving chilled solution temperature to be reset by the zone temperature.

Copper Fin Condenser Coils

Copper fins mechanically bonded to seamless copper tubes are available for use in corrosive atmospheres

Electronic Low Ambient Damper(s)

Allows the unit to operate down to 0°F outdoor ambient conditions.

Inter-Processor Communication Bridge (IPCB)

This module provides an amplified and filtered version of the IPC link for connection to a Remote Human Interface (RHI) Panel. Each chiller that is tied into a RHI must have a IPCB installed.

Other Options

In addition to all of these options,Trane can offer in-house design for many applications, including special coil coating.

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CG-PRC007-EN

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Trane CG-PRC007-EN Ice Building, Compressor Current Sensing CSM, Unit Mounted Disconnect, Isolators, Superheat/Sub-Cooling
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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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