JMC Ventilation Refrigeration is revolutionizing its industry by applying new and existing technologies to provide precise, on-site, and remote environmental control that helps ensure vegetable quality and reduce mass loss (shrinkage) while saving energy.
Manufacturers purposely design condenser coils and evaporator coils to work together in order to provide the best possible efficiency. So why would anyone consider replacing one coil and not the other? The answer isn't as simple as you think, and the 13 SEER transition has brought the ongoing mismatched coil debate to a head.
According to HVAC contractor Randy Scholnick, the key to greater indoor comfort is the airflow control afforded by an ECM blower motor. "It has turned the traditional PSC-driven system into a programmable, multi-airflow system that runs with different settings called comfort profiles," he said.
The need for energy-savings data continues to grow as energy costs continue to rise. The North America Motion Controls Division of Danfoss has been working to develop a means to supply accurate data on energy consumption of AC drives and motors.
Hydrogen-based leak detectors are playing a key role in the production testing of refrigeration units manufactured at Kenmore International's operation in England.
Because of state and local requirements in the building materials area, building contractors are going to be looking for ways to reduce their buildings' energy footprint. What does all this mean to the local HVAC contractor? Opportunity. Builders are beginning to hear the same message that HVAC contractors have been hearing.
There are three main reasons why a compressor will simultaneously have a low head pressure and a high suction pressure: Bad (leaky) compressor valves, worn compressor rings, and a leaky oil separator.
Area high school students attending the Careerline Tech Center's HVACR program are preparing for future careers using cutting-edge training equipment that was specifically designed for use in their learning environment.
Arkema has announced that it will expand production at its Calvert City, Ky., plant to produce the refrigerant HFC-32, one of the components of R-410A.
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