About the temperature controls

on CustomCool™ models. (for other models, see next page)

The temperature controls are preset in the factory at 3°C for the refrigerator compartment and -18°Cfor the freezer compartment. Allow 24 hours for the temperature to stabilize to the preset recommended settings.

The temperature controls can display both the SET temperature as well as the actual temperature in the refrigerator and freezer. The actual temperature may vary slightly from the SET temperature based on usage and operating environment.

Setting either or both controls to 0 (off) stops cooling in both the freezer and refrigerator compartments, but does not shut off electrical power to the refrigerator.

NOTE: The refrigerator is shipped with protective film covering the temperature controls. If this film was not removed during installation, remove it now.

To change the temperature, press and release the + or – pad. The SET light will come on and the display will show the set temperature. To change the temperature, tap either the + or – pad until the desired temperature is displayed. Refrigerator temperatures can be adjusted between 1°C and 7°C and the freezer temperatures can be adjusted between –21°C and –14°C.

Once the desired temperature has been set, the temperature display will return to the actual refrigerator and freezer temperatures after 5 seconds. Several adjustments may be required. Each time you adjust controls, allow 24 hours for the refrigerator to reach the temperature you have set.

To turn the cooling system off, tap the + pad for either the refrigerator or the freezer until the display shows

0 (off). To turn the unit back on, press the – pad for either the refrigerator or freezer. The SET light will illuminate on the side you selected. Then press the – pad again (on the side where the SET light is illuminated) and it will go to the preset points of –18°Cfor the freezer and 3°C for the refrigerator. Setting either or both controls to 0 (off) stops cooling in both the freezer and refrigerator compartments, but does not shut off electrical power to the refrigerator.

Ambient Room Temperature Limits

This refrigerator is designed to operate in ambient temperatures specified by its Temperature Class, which is marked on the rating plate.

Temperature	Symbol	Ambient Temperature
Class		Maximum	Minimum

Extended-
Temperate	SN	32°C	10°C
Temperate	N	32°C	16°C
Subtropical	ST	38°C	18°C
Tropical	T	43°C	18°C

NOTE: Internal temperature may be affected by such factors as the location of the refrigerator, ambient temperature and frequency of door openings. Adjust temperature controls as required to compensate for these factors.

21, 23, 25, 27, 29 specifications

The GE 21, 23, 25, 27, and 29 series of locomotives represent a significant evolution in diesel-electric technology, showcasing General Electric's commitment to innovation and performance in the rail industry. These models, produced from the late 20th century to the early 21st century, are designed to meet a variety of operational needs.

The GE 21, introduced in the early 1990s, was notable for its efficiency and reliability. It utilized a 12-cylinder engine coupled with GE's innovative software systems, allowing for enhanced fuel economy and lower emissions. The locomotive's modular design enabled easy maintenance, which was a significant advantage for rail operators looking to minimize downtime.

Moving to the GE 23, this model offered increased power and improved traction systems, reflecting the industry's demand for stronger and faster trains. With an upgraded traction control system, the GE 23 provided better performance on challenging grades and under various load conditions. Its spacious cab and ergonomic controls also emphasized operator comfort and productivity.

The GE 25 built upon the successes of its predecessors, featuring advanced microprocessor controls and a more robust engine. This model was designed with higher horsepower, making it suitable for heavy freight operations. The GE 25’s aerodynamic design reduced drag, enhancing fuel efficiency during long hauls. Additionally, the locomotive included state-of-the-art diagnostic systems, allowing for real-time monitoring of performance metrics.

In the evolution of these series, the GE 27 introduced even more technological advancements, including improved lightweight materials and enhanced safety features. This model could accommodate various cargo types and was compatible with modern signaling systems, making it versatile for different rail networks. The GE 27 was designed with sustainability in mind, further reducing emissions and adhering to stricter environmental regulations.

Finally, the GE 29 series marked a major leap forward with the integration of cutting-edge digital technology. These locomotives featured predictive maintenance capabilities, allowing operators to foresee potential mechanical issues before they resulted in failures. The GE 29 series also placed a strong emphasis on energy efficiency, incorporating regenerative braking systems that harness energy during braking for reuse.

Overall, the GE 21, 23, 25, 27, and 29 locomotives reflect General Electric’s ability to innovate continually, combining power, efficiency, and advanced technology to meet the changing demands of the rail industry. Each model brought unique features and improvements, ultimately enhancing the performance and reliability of rail freight services.

GE 21, 23, 25, 27, 29 About the temperature controls, Ambient Room Temperature Limits

Models: 21, 23, 25, 27, 29