6

UPS Maintenance

This chapter explains how to:

SCare for the UPS and batteries

STransport the UPS

SStore the UPS and batteries

STest the batteries

SUpdate the UPS firmware

UPS and Battery Care

For the best preventive maintenance, keep the area around the UPS clean and dust‐free. If the atmosphere is very dusty, clean the outside of the system with a vacuum cleaner. For full battery life, keep the UPS at an ambient temperature of 25°C (77°F).

NOTE: The batteries in the UPS are rated for a 3–5 year service life. The length of service life varies, depending on the frequency of usage and ambient temperature. Batteries used beyond expected service life will often have severely reduced runtimes. Replace batteries at least every 5 years to keep units running at peak efficiency.

Transporting the UPS

NOTE: The internal UPS batteries MUST be disconnected before transportation.

CAUTION: The following procedure should be performed or supervised by personnel knowledgeable about batteries and the required precautions. Keep unauthorized personnel away from batteries.

If the UPS requires any type of transportation, the batteries must be disconnected (but not removed) before the unit is transported:

1Verify that the UPS is off and unplugged.

2Place the UPS on a flat, stable surface with the front of the cabinet facing you.

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UPS Maintenance

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Dell K804N, K805N, J739N, 3750W, J730N, H952N, 4200W manual UPS Maintenance, UPS and Battery Care, Transporting the UPS

H952N, K804N, J739N, K805N, J730N specifications

The Dell J730N, K805N, J739N, 4200W, and 3750W are all high-performance server power supplies designed to provide reliable power solutions for various Dell server models. These power supplies are engineered to ensure maximum uptime, energy efficiency, and seamless operation in data center environments.

Starting with the Dell J730N, this power supply unit is known for its robust design and 730W output capacity. It features hot-swappable functionality, allowing for easy replacement without powering down the server. This is crucial for mission-critical applications where downtime can lead to significant operational challenges. The J730N is compatible with various Dell servers, making it a versatile choice for data centers looking to enhance their power management.

The K805N power supply is another excellent option with a power output of 800W. It incorporates advanced features such as Automatic Voltage Regulation (AVR), which ensures that the output voltage remains stable even during fluctuations in the input voltage. This technology is vital for protecting sensitive server components from potential damage caused by power inconsistencies. Additionally, the K805N is designed with a modular approach, allowing for easy integration and scalability.

The Dell J739N exemplifies Dell’s commitment to energy efficiency with its 750W rating. It meets stringent efficiency standards, making it an environmentally friendly option that helps reduce power consumption and operational costs. The J739N is often used in combination with other Dell equipment to create a cohesive and efficient power management strategy. Its reliability is bolstered by a combination of intelligent internal monitoring systems that detect and address power anomalies.

The 4200W and 3750W power supplies represent higher capacity options for larger, more demanding server environments. These units are equipped with multiple redundant power circuits, ensuring that if one circuit fails, others will continue to supply power without interruption. The advanced cooling technologies utilized in these models also enhance performance and reliability by preventing overheating.

Overall, these Dell power supplies reflect the highest standards in design and technology. They are integral to maintaining the health and efficiency of server operations, contributing significantly to the resilience and effectiveness of data-centered environments. With a focus on compatibility, energy efficiency, and reliability, the J730N, K805N, J739N, 4200W, and 3750W power supplies remain essential components in modern IT infrastructures.