Application Considerations

b

ProvideVertical Clearance

Vertical condenser air discharge must be unobstructed.While it is difficult to predict the degree of warm air recirculation, a unit installed as shown below would have its capacity and efficiency significantly reduced — possibly to the degree of nuisance high head pressure trip outs. Performance data is based on free air discharge.

c

Provide Lateral Clearance

The condenser coil inlet must not be obstructed. A unit installed closer than the minimum recommended distance to a wall or other vertical riser may experience a combination of coil starvation and warm air recirculation, resulting in unit capacity and efficiency reductions and possible excessive head pressures.

The recommended lateral clearances are depicted in the dimensional data section. These are estimates and should be reviewed with the localTrane sales engineer at the jobsite.

d

Provide Sufficient Unit-to-Unit Clearance

Units should be separated from each other by sufficient distance to prevent warm air recirculation or coil starvation. Doubling the recommended single unit air-cooled chiller clearances will generally prove to be adequate.

e

Walled Enclosure Installations

When the unit is placed in an enclosure or small depression, the top of the fans should be no lower than the top of the enclosure or depression. If they are, consideration should be given to ducting the top of the unit. Ducting individual fans, however, is not recommended. Such applications should always be reviewed with the localTrane sales engineer.

VOLTAGE

Nominal voltage is the nameplate rating voltage.The actual range of line voltages at which the equipment can satisfactorily operate are given below.

 

 

Voltage

Rated

Utilization

Voltage

Range

200

 

180-220

208-230

 

187-253

230

 

208-254

380

 

342-418

400

 

360-440

415

 

374-456

460414-508

575520-635

WATERTREATMENT

Dirt, scale, products of corrosion, and other foreign material in the water will adversely affect heat transfer between the water and system components.

Foreign matter in the chilled water system can also increase pressure drop and, consequently, reduce waterflow. Proper water treatment must be determined locally and depends on the type of system and local water characteristics.

Do not use salt or brackish water inTrane chillers. Use of either will lead to a shortened life.Trane encourages the employment of a reputable water treatment specialist, familiar with local water conditions, to assist in the establishment of a proper water treatment program.

The capacities given in the “Performance Data” section of this catalog are based on water with a fouling factor of 0.0001 (in accordance with ARI 550/590-98). For capacities at other fouling factors, see “Performance Adjustment Factors” section of this catalog.

EFFECT OFALTITUDE ON CAPACITY

Chiller capacities given in the “Performance Data” section are based upon application at sea level. At elevations substantially above sea level, the decreased air density will decrease condenser capacity and, therefore, unit capacity and efficiency. The adjustment factors in the “Performance Adjustment Factors” section of this catalog can be applied directly to the performance data to determine the unit’s adjusted performance.

10

CG-PRC007-EN

Page 10
Image 10
Trane CG-PRC007-EN manual ProvideVertical Clearance, Provide Lateral Clearance, Provide Sufficient Unit-to-Unit Clearance

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.