Data center often has some facilities and equipment failures, which affect the normal operation of the data center. Hiring a professional equipment technician is the key to ensuring the efficient use of data center infrastructure. This also has a direct impact on the security and efficiency of data center operation. And these, often be engaged in information technology executives ignored.
If the data center employs an IT Manager to be responsible for the daily operation of a data center, it is also very important to hire another professional equipment technician, because there is a difference between barely able to use and efficient use for maintaining the infrastructure of the data center. It is very important to fully and comprehensively understand the operation of data center facilities and equipment. However, in the data center, it is sometimes difficult to diagnose whether the components of some devices fail.
For this reason, I always suggest that there should be a qualified mechanical technician (or a contracted mechanical technician) in the data center. Since we should all be responsible for the successful operation of the data center, we must consider the possible problems. For example, the fan of the air conditioning unit in the computer room is the equipment that is easy to cause problems.
Simply put, if the air conditioner in the computer room doesn’t blow out air, it’s obvious that there is a problem. However, when maintaining the air conditioning system of the computer room, we should pay special attention to the subtle sounds and changes.
For those who are not familiar with the air conditioning of the computer room, let’s briefly review it. In short, we will only discuss the computer room air conditioner installed in the data center or the computer room air conditioner. There are many different types of systems, some of which are installed according to the distribution of large central air conditioning, some of which are provided with smaller air conditioning units, and then enter the room through conduit.
A refrigerant or liquid computer room air conditioner contains many components, including condenser coil, compressor, humidifier and fan. We will focus on the fans.
The fan is an assembled rotating blade that may or may not have a closed housing. The fan may be a supply fan or an exhaust device. A supply fan is a fan that blows air into a duct, pressure room, room, or other space. An exhaust fan is a fan that sucks air out of the room. We will focus on the supply fan.
The following is a list of fan vibration and noise problems and how to correct them. Again, only qualified mechanical technicians can make final diagnosis and maintenance.
Do you hear or feel the abnormal vibration and noise from the air conditioner in your computer room? Here are some possible causes and maintenance instructions.
(1) Impeller, bearing, coupling, or V-belt drive not calibrated. Repair note: loosen, line up the above components or tighten the equipment.
(2) Unstable foundations or flooring can mean a poor design. Repair note: you may need to restart to provide a solid, level mounting surface.
(3) Check the material outside the unbalanced fan. Many repairmen will find something sticking to the fan frame. Repair note: remove these items and check for damage.
(4) Bearing wear is difficult to diagnose, but noise or difficult rotation is an obvious sign of the problem. Repair instructions: replace the bearing and shaft rod.
(5) Damaged impeller or motor. Repair note: qualified professional personnel shall inspect and repair.
(6) A broken or loose bolt or screw. Repair note: tighten or replace.
(7) Bent shaft or worn connecting shaft. The biggest question is why it happened. Repair note: replace.
(8) The impeller or driving wheel is unbalanced. Repair note: balance.
(9) The fan capacity is over rated. Repair instructions: reduce the fan speed.
(10) High fan speed or wrong direction of rotation. Repair instructions: reduce the speed of the fan or correct the direction of the fan.
(11) Check the vibration transmitted to the fan from a place other than the fan. Repair note: isolate vibration or repair.
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