The amount of power computer/server rooms, work stations and electrical equipment needed to keep a business up and running is huge. In a BBC report according to OFGEM Britain risks running out of power by 2016. This gives you an idea of just how much power is being consumed on a daily basis and how much energy is being utilized.
Heat needs to be removed in order to avoid causing damage to extremely sensitive and computer equipment or finally complete shutdown. Something most businesses can only hope never happens to their precious data rooms. An imbalance in the temperature could mean all the difference between a company functioning and continuing to function and total catastrophe if the data is damaged and lost.
Within a computer room the head load is mostly at a constant all year round. However this changes naturally depending on the weather outside, and this then affects the cooling capacity of the air conditioning unit. So for example if you have an outside temperature of +15C the ACU’s cooling capacity is likely to reduce. If however the temperature reduces further in tune with the outside weather conditions to say -0C the system may fail altogether which could possibly cause catastrophic repercussions particularly to a Server or Computer Room where it is absolutely essential the temperature is kept at a constant at all times. It is therefore imperative the UK weather is taken into consideration due to its unpredictability!
So what can we do if we can’t change the weather?
A Cooling coil absorbs unwanted heat which is expelled from the servers into the aisle after it has drawn it back through the Air Conditioning unit.
Computer rooms can suffer with hot or cold ‘spots’ which can be affected by the design layout and configuration of the room.
The heat load on the AC equipment can be altered through re-design of the layout.
Cold air is drawn down through a floor void before it enters the room through floor grills which are laid out to form an aisle. This cool air is then blown back up into the server unit with assistance from integral server fans.
Most systems today are fitted with an alarm to detect changes in room temperature and act as a backup system to ensure any issues are picked up with minimal disruption, without increasing the room temperature. Systems today can also be configured with a notification to the client in cases of emergency whereby an engineer needs to be on site ASAP. At Data Cooling we can ensure someone is on site to deal with any problems after we have finished an install.
For smaller areas where space is tight or there is not a large demand for cooling we would recommend a ceiling or wall mounted cassette split system but this will depend on space available to implement a cassette initially, how your equipment is laid out and in particular where your storage for electrics is located as no equipment can be placed above in case of a water leak.
To avoid any static issues building up with your IT equipment humidity can be introduced to keep humidity RH levels in the room up. There is generally a large amount of heat being produced and this creates a cooling or drying effect in the air, thus the need to introduce humidity.
Ventilation is commonly used and has a cheaper running cost so long as the outside temperature is relatively low during the winter months especially and in the evenings. However its capability is limited during the summer months when the wattage is around 40watts/m and then a higher cooling density will be necessary. However this option may suit your needs and can be discussed prior to installation.
The ideal temperature for an IT, Computer/Server Room is usually automatically set to 20C (+/-1C) and 45%RH (+/-5%) via a control system. Once the desired temperature is set it need not be changed. Regardless of the outside or indoor room temperature the system is designed to automatically adjust according to the environment. Again this can be tailored to your needs and can be discussed before installation.