SERVICE AND MAINTENANCE
a s vibration analysis, infrared thermography, ultrasonic testing and motor current analysis to diagnose problems in advance. In this way, predictive maintenance helps prevent problems before they occur.
Indeed, maintenance is such a critical activity t hat you might want to consider employing a third party specialist to help you with it. My own company, for example, has broadened its service to include on- and off-site repairs of tube and fin heat exchangers.
A large part of the maintenance process i nvolves cleaning, since dirty equipment is r esponsible for a disproportionate number of HVAC equipment failures. This brings us to the second critical factor – protecting air handling units, chillers and other air conditioning e quipment from the effects of flying debris. A s those who suffer from seasonal allergies k now all too well, warmer weather means more pollen and spores floating around in the air, as well as heralding an increase in the growth of dust mites and mould, all of which can trigger allergic reactions.
Pollen, leaves, insects and general airborne debris can also have a dramatic, negative effect o n a building’s energy usage and carbon footprint. One answer to this is pre-filtration, installing fine mesh filters on the air intakes of sensitive air conditioning equipment to prevent the debris entering the inside air of the building, or the workings of the HVAC system. This will save a considerable sum of money.
My own company’s Air Intake Screens, for example, offer facilities managers and building owners the opportunity to cut costs, reduce maintenance, and increase the life of internal filters by up to 60%.
ECEX Air Intake Screens are long lasting,
weather-resistant filter mesh products which fix to external intakes on air handling units, chillers and condensers. This protects coils before any airborne debris can clog the fins and reduce the efficiency of evaporator or condenser coils.
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Additional steps to
maintaining
maintainin g a healthy building
■ Keep doors and windows closed, especially during the peak pollen hours (5:00am to 10:00am)
■ Ensure cleaning staff use
vacuums with HEPA filters and dust with a damp cloth to avoid
The Air Intake Screens pre-filter outside air and catch detritus such as dust, pollen and leaves. B y moving the airborne debris to a position in which it can easily be seen and removed (using a soft brush, hose or vacuum cleaner), the ECEX Air Intake Screen provides a simple, retro-fit protective option for on-site equipment.
This simple cleaning regime allows fan motors to run more efficiently, while coils remain unsoiled for longer and less frequent changes are r equired for internal filters. Used wit h air handlin g units, air intake screens can not only increase internal filter life by up to 60%, but also deliver measurable results in improved energy efficiency and reduced maintenance time and costs. As well as saving energy and reducing
maintenance demands, ECEX Air Intake Screens also help extend the life of coils and ensure they continue to operate at optimal efficiency. Furthermore, they boost energy efficiency because the fans need not work harder to overcome the effects of blockages. They also reduce maintenance requirements, largely for the same reason, and they ensure the cleanest possible air enters the building, improving the health, safety and welfare of occupants.
dust with a damp cloth to avoid sending pollen spores into the air
■ Avoid the use of ion-based air purifiers, which remove the pollen but create ozone that can worsen allergy and asthma symptoms
■ Regularly maintain ducts to
prevent pollen and other allergens from invading the building
■ Clean air filters at least once a month and change them at least every three months
■ Remove debris, dirt, pollen and other contaminants with specialized tools including high- powered vacuums
■ Repair any holes and replace insulation if required
■ Replace air filters if needed
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©
Yo
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