ASHRAE TC9.9 Data Center Power Equipment Thermal
the data center thermal environment may affect power distribution equipment. This paper also provides an overview of data center power distribution [2] [3] and describes the typical power
ASHRAE defines multiple classes of data center equipment with varying temperature tolerances: Class A1 (Enterprise Servers & Storage): Recommended range of 15°C to 32°C (59°F to 89.6°F). Class A2 (Mid-Tier IT Equipment): Recommended range of 10°C to 35°C (50°F to 95°F).
Increased energy use and equipment failures can hinder the overall performance of a data center. To mitigate these risks, data center temperature standards and best practices — such as those set by ASHRAE and the Uptime Institute — offer guidelines for managing temperature in a way that promotes both equipment longevity and operational efficiency.
In order to keep equipment cooled efficiently without overheating, data centers must operate within a certain temperature range. The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) offers the most widely accepted guidelines for data centers.
Each individual data center needs to set its own standard for information technology (IT) equipment intake air temperatures to ensure reliable and economical operation. The ASHRAE Thermal Guidelines and NEBS GR-63/3028 provide important guidance on temperature and humidity in equipment spaces.
the data center thermal environment may affect power distribution equipment. This paper also provides an overview of data center power distribution [2] [3] and describes the typical power
Discover data center temperature and humidity standards to reduce downtime, improve efficiency, and protect equipment in high-performance facilities.
Although the recommended temperature range is identical for all four classes of data center hardware, the allowable temperature varies by equipment class.
Optimize your data center temperature with ASHRAE guidelines, temperature sensors, and environmental monitoring. Discover best practices and what impacts the temperature in your
The temperature change of the ITE must meet the limits shown in the table and is calculated to be the maximum air inlet temperature minus the minimum air inlet temperature within
The optimal server rack temperature range is 68°F–77°F (20°C–25°C), as recommended by ASHRAE. This range balances equipment longevity and energy efficiency. Deviations beyond
Learn ASHRAE guidelines for optimal data center temperature and humidity levels for efficient operations and equipment longevity.
For this exercise, we will use the data center shown in Figure 5, which has a fairly typical temperature distribution in front of the equipment racks. The figure demonstrates that the hot layer
When using cold corridors inside the data center, then the ambient air temperature outside the corridor may be at higher levels. Air temperature of 37°C / 99°F are not uncommon in such setups.
If racks are arranged front to back, or if servers and racks are mounted with too much open space around them, hot air will recirculate and increase the intake air temperature. Even in a
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