Generators Serving Small Data Center | Critical Facilities

Generators Serving Small Data Center | Critical FacilitiesGenerators Serving Small Data Center | Critical Facilities - These generators serve a small data center giving the data center backup emergency power in the event of a loss of utility. Most data centers have redundant power from the utility and backup generators. In other words, the utility will provide two sources of utility power from two different power stations or sub-stations so if one source station loses power for whatever reason the system automatically transfers to the backup source of power or the other power or substation. (more…)

DDC Control Module for an Air Handling Unit | HVAC Control

DDC Control Module for an Air Handling UnitDDC Control Module for an Air Handling Unit – This is a direct digital controls control module for an air handler that serves some VAV boxes in office spaces for a Data Center. This DDC control module includes analog and digital inputs and analog and digital outputs to handle all the control functions necessary to control the devices and components on a large commercial air handler. (more…)

Portable Load Bank for UPS Testing | Commissioning

Portable Load Bank for UPS TestingPortable Load Bank for UPS Testing | Commissioning - This is a portable load bank used for testing small UPS (Universal Power Supply) systems and for other electrical loads. New UPS systems are tested to ensure they operate properly and can hold the designed load whenever a power failure occurs.

It is a way to test the UPS system without hooking up an actual load to the system with the actual load being the computer systems the UPS will power in the event of a power failure.

This testing ensures the UPS equipment will functionally operate after the intended load is hooked up to the UPS system. Included in the test is a time factor on how long the batteries will power the load without utility or a backup generator. On specific construction projects, whether it is new construction or retrofit projects, data centers and telecom facilities go through the commissioning process.

The commissioning process tests all electrical and mechanical devices under normal operation and under full load conditions. Other scenarios are tested such as equipment failure, infrastructure failures such as piping or utility loss, and plans implemented for operational procedures in case these scenarios occur.  (more…)

Cooling Tower Fan | Commercial HVAC

Cooling Tower FanThis is an HVAC chilled water system cooling tower fan for a large chilled water system. Four large cooling towers for two chiller plants in a data center. Data center cooling systems generally are redundant not only for emergency situations but also for maintenance. The cooling tower fan typically has vibration switches installed in the fan assembly to shut the fan off in the event of too much vibration. (more…)

Cooling Tower Evaporation Cools Water | HVAC Technical

Cooling Tower Evaporation Cools WaterCooling Tower Evaporation Cools Water | HVAC Technical - Cooling towers use the process of evaporation to cool or removes heat from the condenser water that was transferred to the water in the chiller condenser barrel. The heat is absorbed in the load in this case in a data center on a data center floor. The servers and electrical equipment produce a massive amount of sensible heat.

The heat is absorbed by computer room air conditioners or computer room air handlers. These systems, computer room air handlers, and air conditioners have chilled water coils. The chilled water originates at the chiller into the primary loop. The water circulates through the primary loop and makes its way into the secondary loops. (more…)

Data Center Perforated Tiles for Cooling Servers

Data Center Perforated Tiles for Cooling ServersData Center Perforated Tiles for Cooling Servers - There is a lot to consider with perforated tiles in data centers and depending on who you talk to you will get different answers. The server floor in a data center is typically built on a raised floor with cold air being pumped under the floor by large CRAH (Computer Room Air Handlers) or CRAC units (Computer Room Air Conditioners). (more…)

Large Condenser Pump for a Chilled Water System

Large Condenser Pump for a Chilled Water SystemLarge Condenser Pump for a Chilled Water System - This large HVAC condenser pump serves a new chiller located in a data center. This pump pumps condenser water through the condenser chiller barrel and to cooling to reject the heat absorbed in the chillers evaporator barrel. The pump works to move the water from the chiller to the cooling and then back through the chiller again. The water is diluted with a glycol solution to prevent freezing in the wintertime when the chiller needs to run at low ambient temperatures. (more…)