We are full qualified and certified Microsoft installation engineers and can help with your business IT support, server and networking equipment requirements.If the air conditioner is too small then the unit will run all day and will not be able to comfortably cool the room on warm days. We are not air con specialists and regret that we are unable to offer free air con BTU calculations. Before you decide on an air conditioning unit you should commission an audit from a suitably qualified air conditioning equipment specialist or installer.Īs always, the Netcom team are at your disposal so give us a call on 0871 2300417 or at if you have any questions. Ambient air cooling isn’t a replacement for air conditioning and thermostatically controlled cooling but can provide a money saving break from the air con at relevant times of the year.ĭisclaimer : This calculation is intended as a rough guide only. The use of ambient air circulation at times of the year where the outside temperature is low enough to cool your equipment will save you money. If your reading this from the UK you’ll know that there’s a large time of year when our weather is less than hot. 1 ton of cooling is equivalent to 12 thousand BTUs. Larger units may be rated in tons of cooling. Small units may fit in windows, venting to the outside world. Small air conditioning units have a cooling capacity of between 500 BTUs. This is the amount of cooling required so you need one or more air conditioning units to handle that amount of heat. Total Heat Load = Room Area BTU + Windows BTU + Total Occupant BTU + Equipment BTU + Lighting BTU Lighting BTU = Total wattage for all lighting x 4.25 Take the total wattage of the lighting and multiply by 4.25. However, it is probably safer to overestimate the wattage than underestimate it.Īdd together all the wattages for Servers, Switches, Routers and multiply by 3.5.Įquipment BTU = Total wattage for all equipment x 3.5 The wattage on equipment is the maximum power consumption rating, the actual power consumed may be less. This is trickier to calculate that you might think. Total Occupant BTU = Number of occupants x 400Ĭlearly most heat in a Server Room is generated by the equipment. The heat output is around 400 BTU per person. Purpose built Server Rooms don’t normally have people working in them, but if people do regularly work in your Server Room you will have to take that into account. Windows BTU = South Window(s) BTU + North Window(s) BTU Add together all the BTUs for the windows. Obviously if you are in the Southern Hemisphere you would swap the conversion factors as the heat on North facing windows is then greatest. If there are no blinds on the windows multiply the result(s) by 1.5. North Window BTU = North Facing windows Length (m) x Width (m) x 165 South Window BTU = South Facing windows Length (m) x Width (m) x 870 If, however there are windows you need to take the size and orientation into account. If, as is quite common, your Server Room has no windows, you can ignore this part of the calculation. Room Area BTU = Length (m) x Width (m) x 337 The amount of cooling required depends on the area of the room.
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