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Without a plan for maintenance in place, you are taking significant risks with your system. Left unchecked, your system’s performance will gradually decrease, your UPS runtime for example available will reduce without the business being made aware of the risks, your air conditioning will not be as efficient, this in turn puts strain on the rest of the system’s components and the running costs will increase. What was once considered a Risk and Reward is quickly becoming a non starter as costs escalate for unplanned call outs and maintenance, in addition to the costs associated with the business not being able to function.
The benefits of a regular air conditioning preventative maintenance schedule can give you tangible returns of added life to your system, lower energy usage and lower repair bills. Critical Infrastructure definitely require regular preventative maintenance to keep the system running at optimum levels throughout its life cycle for example Air Conditioning should be inspected every 90days as should UPS Solutions, whereas Generators should be tested monthly.
A world Class PPM visit includes the following and more:
There are numerous preventative maintenance you could include or request to be included in your maintenance visit, however when you work with a company such as Critical Power Supplies we carry these out as standard.
In addition to specific requirements each customer may have.
Quarterly:Visually inspect equipment for loose connections, burned insulation or any other signs of wear.
Semiannually: Visually check for liquid contamination from batteries and capacitors.
Clean and vacuum UPS equipment enclosures.
Check HVAC equipment and performance related to temperature and humidity.
Annually: Conduct thermal scans on electrical connections to ensure all are tight and not generating heat, which is the first and sometimes only indication of a problem. A non-evasive diagnostic tool helps technicians identify hot spots invisible to the human eye. Technicians should retorque if thermal scan provides evidence of a loose connection.
Provide a complete operational test of the system, including a monitored battery-rundown test to determine if any battery strings or cells are near the end of their useful lives.
Test UPS transfer switches, circuit breakers and maintenance bypasses.
If a generator is part of the building’s emergency-power system and feeds the UPS, it also will need to be tested monthly or quarterly. Most facilities have a generator-maintenance schedule in place in which testing frequency is defined.
Condenser Coil – Cleaned as required
Refrigerant Charge – Checked by superheat/subcooling method (Thermocharging)
Controls & Safeties – Inspected & tested
Relays & Contactors – Inspected & cleaned
Crankcase Heater – Operationally inspected
Unit Wiring – Inspected & loose connections tightened
Temperature & Pressures – Taken & recorded
Capacitors – Tested
Unit Disconnect – Tested
Lubrication – Application to motors & bearings.
Belts & Pulleys – Inspected & adjusted
Condensate Drain – Checked to assure it is open
Air Filter – Replaced at customer’s option
Voltage & Amp – Draw of the blower motor, compressor & condenser fan motors checked & recorded
Thermostat – Checked & calibrated
Motors – Cleaned & inspected
Remove worn parts and upgrade or replace them.
Check fluid levels, including coolant and fuel.
Inspect and clean the battery.
Conduct a load bank test on the generator and automatic transfer switches.
Check that the control panel readings and indicators are accurate.
Change the air and fuel filters.
Inspect the cooling system.
Lubricate parts as needed.
For more information on our range of preventative maintenance visits please contact us on 0800 978 8988 24×7.