Entech’s use of technologically advanced instrumentation for obtaining Air and Water readings helps to insure state of the art performance when testing and balancing your buildings environmental systems. Entech can balance your system, from a single VAV Box or Water Coil, to an entire Hi-Rise Office Building.
Eddy Current testing is a means of checking the condition of tubes in the condenser and evaporator sections of a chiller. An electronic probe is inserted in each tube at the end of a tube bundle and pushed through the entire length of the tube. The information fed back from the probe reveals abnormal tube wear or tube defects.
When a tube fails in a chiller, water enters the refrigerant side of the chiller. Water mixes with the refrigerant and forms an acid which attacks the internal metal surfaces of the machine. The resulting damage can be catastrophic, rendering a unit beyond repair. Many times Eddy Current testing will detect potential failures, allowing repairs to be made prior to failure.
As a general rule, most manufacturers recommend that testing be done at three year intervals. After the first test has been made, a realistic testing schedule can be made scheduling future tests.