The majority of new home developments are larger, three-or-more-bedroom homes with multitudes of baths, whirlpool tubs, etc., and the necessity of providing a source of heat to all of these things. Many of these homes have multiple zones of radiant floor heat, air conditioning and heating coils, along with everything else. For these reasons, more and more of these homes are being furnished with hydronic heating. The question for the HVAC contractor often is, whether to size the system with one heating boiler or to use two or more.
Motor efficiency remains one of the top issues in our industry, but when you talk about efficiency, often you’re talking about tradeoffs. In other words, it is relatively easy to make a motor more efficient if money is no object. But since cost is a factor, motor manufacturers keep seeking the right balance of increasing motor output without driving up the price of the product.
High-side piping can be simply described as the piping that connects various components of a refrigeration system that operate at, or near, the system condensing temperature. This includes, but is not limited to, condensers, receivers, thermosyphon oil coolers, purgers, and oil separators.
You are called out to service a piece of refrigeration equipment. As soon as you arrive on the job, the customer follows every move you make. After you’ve looked at the equipment for only a few seconds, he wants to know what the problem is and how much it will cost to fix it. Sometimes he’ll even tell you what the problem is. Does this sound familiar?
Emerson Climate Technologies announced that it has entered into an agreement to provide energy efficiency services for Tesco, the largest food retailer in the United Kingdom. Under the agreement, Emerson’s Retail Services organization will provide Internet-based energy- and equipment-monitoring technology at 585 Tesco-owned stores in the U.K.
Once upon a time, small places to buy packaged food and drinks were called neighborhood grocery stores. Eventually chains came along to reinvent neighborhood establishments as convenience stores. Over the years, one constant has been the need for refrigeration.
A teleconference announced the three-year agreement between Carrier and Sears to have Sears sell Carrier 1-1/2 - to 5-ton residential ducted systems, as well as Carrier system products and accessories.
Contractors who rely on supermarket work as a steady form of income may want to take note of some statistics emerging from that sector. Store owners want to know everything possible about their customers. Each year, the Food Marketing Institute (FMI) surveys those buyers to find out what they want. And some of what they want relates directly to the mechanical refrigeration equipment.