Data Centre Cooling

Data Centre Cooling- Service, Maintenance & Repair

Data Centre Cooling Service
Data Centre Cooling Service

Maintenance of Data Centre Cooling Systems

If you have been given an expensive quote for new units- stop! We have the capability to extend the life of your data centre cooling systems with regular maintenance. Even if it means fitting a different controller it is not a big deal for our highly skilled engineers. Where parts are obsolete, we select the correct new version then fit it to the existing machine. On a maintenance visit we nip small problems in the bud before they become big problems. This keeps your data centre nice and cool at all times!

0161 327 2838

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Data Centre Cooling Systems

These can be grouped into various types: mezzanine down-flow systems, up-flow systems, out-flow systems. All of these systems can be chilled water fed units or direct expansion. Whatever type of cooling system is in your data centre, you are in safe hands with Maximus Chillers

Close Temperature Control

Computers engineers in a data centre want their computers as cool as possible. Close control means humidity control and a narrow deadband for optimum room temperature 

0161 327 2838

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Data Centre Cooling Systems
Data Centre Cooling Systems

Data Centre Cooling Repair

Expansion Valve

A data centre cooling repair that can catch an inexperienced engineer out is the expansion valve. This is because the symptoms are nearly the same as a system running short of refrigerant: low back pressure and high superheat. The only difference is a clear sight glass with a solid column of refrigerant behind it. This is because the refrigerant is stuck behind the failed expansion valve

Power Element

Usually the power element fails on top, this pushes against the spring to open the valve when the superheat goes up. Some thermostatic expansion valves can be dis-assembled and the power element replaced separately, others come as one complete unit. Usually they are brass so silver solder is used to make the joint

Pre-set Orifice

A thermostatic expansion valve comes pre set to 5° superheat so the orifice does not need to be adjusted through the whole of its life

0161 327 2838

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Data Centre Cooling Service

Maximus Chillers provide a data centre cooling service that is second to none. The most popular cooling system we service is the down flow unit. It is popular because of efficiency: it blows through the data centre mezzanine floor, up through grills and up through the computer racks. The return air is sucked back in from the top, which is where it rises to anyway, as warm air is thinner

Compressor Swap Out

Isolation

Test the tester then check the machine is dead. Lock off

Refrigerant Decant

With this kind of data centre cooling service it is necessary to get the gas out. The refrigerant is condensed in the pump out unit, which is connected to the recovery cylinders

Compressor 

The compressor is removed and replaced. It is soldered in and the pipework is pressure tested. A vacuum pump is fitted to both sides of the system and 1 Torr is pulled to remove any moisture and non condensables

Superheat

A way of determining the charge is to put around half in then keep charging it to the liquid side of the evaporator until the superheat comes down to operating conditions. A detailed data centre cooling service sheet is completed. The machine goes into seamless operation

0161 327 2838

service@maximuschillers.com

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