Energy audit findings – the photograph above is a section of a damaged coil from an air conditioning unit. It is obviously a badly damaged, the aluminium fins have been stripped away, revealing the structure of the refrigeration tubing beneath, absolutely necessary for coolant-to-air heat exchange. However, since the air conditioning is still “technically working” it seems no repair is deemed necessary to restore the lost heat exchange area, and lost efficiency.
Specification Note: Actually this is a common problem, and easy to avoid – insist upon a heavy gauge, say 25mm x 25mm GI mesh over the exposed coil area to provide mechanical protection. With a large open grid, the mesh would not impede the air flow. It will protect the delicate fins from unintended damage.
DON’T forget the electricity tariff – It is easy to overlook the painless cost savings achievable by simply choosing the correct Utility Tariff for your facility or building. A tariff is the published rate for electricity charging, typically utilities offer different charging schemas for low, medium and high consumers.
Tariff Analysis is a scientific based approach, examining your the utility bills to identify the optimum tariff for you, that the tariff with the lowest cost.
Where the utility company permits summation metering, and the facility has more than one power meter, re-analyse using the totalled data – using all the meter readings, to check and identify if summation metering provides a beneficial tariff.
Remember that tariffs change frequently and without notice, so its wise to ensure that you order a Tariff Analysis at least once per year.