Data Center Cooling Audit

In order to pinpoint the source of a cooling issue in a data center, we will look for inefficient cooling systems, settings, or operating methods. This necessitates a comprehensive examination.

Our Data Center Cooling

A Data Center cooling system audit checklist is necessary.

CRAC capacity check: Confirm that the current or predicted power demand for your server room is within the cooling system’s capabilities. Remember that for every 1 watt of IT power, 1 watt of cooling is required. An excessive cooling system can result in unnecessary energy use. The capacity of the cooling system can be determined using the model nomenclature of each CRAC unit. The manufacturer’s technical data includes capacity values.

Uncoordinated CRAC units running in opposite modes, such as dehumidifying and humidifying, result in a 20-30% reduction of CRAC system efficiency, resulting in insufficient cooling and downtime. CRAC machines have four operational modes: cooling, heating, humidity, and dehumidification. Make ensuring that when two of these conditions, such as cooling and dehumidification, are active, they do so within a radius of 4-5 units. To ensure consistency and prevent demand wars, verify and, if necessary, reset temperature and humidity checkpoints on all CRAC units. Check that all fans, alarms, and filters are operational

CRAC Unit Placement : If a raised floor is utilized for air distribution, the CRAC unit is placed near the end of the hot aisle depending on the air distribution arrangement. In hot or cold aisles, they are situated perpendicular to the aisle.

The refrigeration circuit, condenser circuit, and refrigerant pipes should all be tested. Check the condition of the chiller, condenser circuit, primary cooling loop, refrigerant pipeline, pumping system, and evaporator coil. Check that all valves are in good functioning order and that the DX system (if applicable) is completely loaded.

Check the temperatures in the aisles and in the racks: Compare the recorded room temperature to the recommended inlet temperature of the IT equipment manufacturer at the main aisle site, which is normally midway between the rows of equipment and 1.5 meters above the floor. Temperature measuring stations are located at the top, middle, and bottom of each rack’s air inlet.

Air velocity of floor tiles and aisle and floor tile arrangements: When employing a raised floor as a cooling plenum, a uniform air velocity over all floor grating and perforated tiles must be maintained. Make certain that no material from raised floors is thrown onto IT equipment via vented floor tiles..

Airflow between racks is hampered by gaps, empty rack space, unprotected cable outlets, and excessive cabling. Fill in any gaps or openings.

Check for dirty air filters, worn bearings, wheels, and motors, leaking compressors, and damaged blower belts. Also, use the oil kind and quantity advised by the manufacturer.

Air velocity of floor tiles and aisle and floor tile arrangements: When employing a raised floor as a cooling plenum, a uniform air velocity over all floor grating and perforated tiles must be maintained. Make certain that no material from raised floors is thrown onto IT equipment via vented floor tiles..