Orion air conditioning and
refrigeration limited has completed
a small replacement server
room air conditioning unit for Gregory Wildman Accountants in
Wilden, Bedfordshire. The
existing Daikin wall mounted air conditioning unit had failed due to
old age, it was installed in 2003 and had been working continuously
since installation. Daikin Air conditioning is renowned for long reliable life and are
ideal for server rooms and coms rooms were a failure can mean
the complete shut down of an entire business. The original
conditioning unit was on R407C refrigerant and was on of the
first inverter models for use
in the UK on R407C. The new unit is a energy efficient inverter system
which has a high COP and modulated inverter compressor which can
save up to 40% on server room air conditioning that will run 24 hours / 7 days a
Server Room Project Picture:
What air conditioning unit was installed
1 x Daikin
Air Conditioning ATX25JV Wall Mounted Inverter Heat Pump (2.5 Kw
/ 9000 Btu) 240V~50hZ units
which provided enough cooling for the 4 meter square area in the server
room. These units have a COP 3.65 initial input which means that every 1000w of electrical energy going
in produces 3650 watts of cooling. 3 times more
effiecient than a direct electric heater.
Server room air conditioning efficiency
and CO2 emissions:
This air conditioning
system took around 20 minutes
to cool fully the server room area to 18 DegC which was
initially sitting at 28 DegC, but once cool the outdoor inverter units slowed
down because the temperature had been reached therefore just
pumping small amounts of cooling in to maintain the server room.
Server Room Heat
Server room efficiency: 85%
Total power of servers: 1000 Watts
Total heat loss: 150 Watts@85%
Room in Square Meters: 460 Watts
Total Heat Load: 610 Watts
Key points to think about when getting air
conditioning for server rooms
Use inverter air
conditioning as it will save energy in the long run.
conditioning units do not work in cold weather because they do
not have a outside fan speed controller (low ambient kit)
Use a established
brand so if a part fails on you Server room air conditioning you
are not waiting 8 weeks for a part.
Sometimes it is
worth having two server room air conditioning units because if
one fails you still have some cooling.
To establish the
heat load of you servers add up all the power supplies of your
servers rack and assume a 40% loss to heat. i.e- If you have 10
servers with 400watt power supply the total watts will be 4000
watts. assuming a 40% loss the heat load will be 1600 watts.
Work on a average
watts per/Msq of 125watts, so if you server room is 5 x 5 meters
you will require a base of 3.5kw/12000btu + the heat load.
for server room air conditioning Mitsubishi, Daikin, Fujitsu,
Always use auto-restart units for
server room air conditioning units as power failures can shut
budget air conditioning down.
If your server room
is temporary (ie short term lease on building) or has building
portable air conditioning maybe your only
If using portable
air conditioning for your server room then make sure it recycles
the water for better cooling performance of that it has a
integral condensate pump.
Use a established
business who will not be going out of business for your server
room air conditioning installation as the warranty of the air
conditioning is with the supplier not the manufacturer.
We offer a complete service to IT
Managers, Building Managers and Server Room / Computer / COMS room managers.
Call us for a comprehensive quotation
on varied air conditioning manufactures to suit any budget on
new installations. We have worked with many Blue-chip
organisations in helping them develop their server room air
Call: 0845 567 7080 for details on server room air