Computer room air conditioning unit how to set up -
1, if there is a computer room air conditioning unit for flexibility, they should be geared to the needs of hot channel rather than cold channel to decorate, because the floor in the cooling channel under dynamic pressure should be minimum.
2, such as computer room air conditioning unit on the overhead can examine floor parallel arrangement, is no exhaust air supply direction of computer room air conditioning unit should make the whole floor under static pressure increase, rather than making the air volume flow, static pressure drop in the region and into the overhead can examine the under floor air cooling overall losses.
3, if the frame can let the hot air back to the entrance to the computer room air conditioning unit clear channel, the rack is usually lower frame inlet air temperature.
4, in order to improve the efficiency of ventilation system, the cold air from the hot exhaust is the key measures.
5, in order to better control IT equipment inlet air temperature, should control the outlet air temperature of computer room air conditioning not returned from the rack unit inlet air temperature.
6, when all the computer room air conditioning unit in the same direction of the wind, punched the air distribution under ground plate is very evenly;
When supply airflow collision of computer room air conditioning unit, air distribution is very poor.
7, guide blades and baffle show will reduce computer room air conditioning unit air volume by about 15%, so the computer room air-conditioning unit shall be limited to consider guide blades (
The spoon type)
However, when the guide blades used to decorate the computer room air conditioning unit, from the unit to send out of the air flow should be the same direction.
Eight, the use of advanced thermal integration table, through computer room air conditioning unit operation parameters (
Such as air or cold air set temperature)
To control the thermal environment of data center (
Boucher, etc. , 2004;
Bash, etc. , 2006)
Can save 50% (
Bash, etc. , 2006)
Frequency conversion device can be used to change the fan speed, so the air temperature setting of the computer room air conditioning unit can be controlled by computer room air conditioning unit condenser operating mode to change.