Secondary loop systems in supermarkets are coming under close evaluation in a white paper published this past fall by Bohn. One reason for looking at alternatives to conventional direct expansion (DX) systems is to reduce refrigerant and leaks.
The Ephrata Playhouse in the Park is home to the Ephrata Performing Arts Center (EPAC), formed in the 1950s by renowned Broadway producer John Cameron. The historic facility had an unfortunate reputation for inadequate indoor comfort. A successful “Raise the Roof” capital campaign enabled an HVAC renovation.
It’s official. After more than a year of projects between the supermarket industry and the Environmental Protection Agency (EPA), the two entities and others have launched GreenChill. Formally, EPA joined with the supermarket, refrigeration equipment, and refrigerant industries to launch GreenChill Advanced Refrigeration Partnership.
Once contractors step up their efforts in submitting refrigerants for reclamation services, they will find the reclaim sector of the HVACR industry more than ready for them. The U.S. Environmental Protection Agency (EPA) has certified close to 50 such sources as capable of bringing refrigerant back to ARI-700 standards.
This column explores how a restricted metering device will affect system performance and efficiency. The system is a commercial refrigeration system employing a receiver and a thermostatic expansion valve (TXV) as the metering device. The refrigerant is R-134a.
What’s in a name? Companies often undergo name changes to better reflect a shift in direction or corporate structure. But every once in a while, the name doesn’t change but the meaning of the name does.
The most recent AHR Expo in New York City had a number of manufacturers showing their latest refrigerant recovery machines. Not all were brand new at the time of the expo, but what was being shown represented some of the newest approaches to mandatory refrigerant recovery.
In light of rising energy costs and a Congressional push for energy independence, performance contracts are rising to the top of many commercial building owners’ lists of things to investigate. More and more facility managers are implementing performance contracts.
BIM. If you are not acclimated with the term or technology, now is the time - especially if your firm is up to creating lean and green buildings. (In truth, BIM is used for all construction.) BIM stands for Building Information Model and Building Information Modeling.
One Hour Heating and Air Conditioning? Bob Kaminsky can do far better than that. The owner of Air Tigers Inc. could be at a customer’s house in seconds flat. Only problem is he is not allowed to go such speed on the streets. Going over 100 miles per hour is only allowed on race tracks, where the contractor is getting quite a name for himself.
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