Wine cellars need to have a limited ambient temperature range and precise humidity control. But of most interest to HVAC contractors are the wine coolers used by some wine connoisseurs and most restaurants.
Pressure controls serve various functions, which may be divided into control and protection functions. Examples of control functions are compressor cycling, pumpdown, or defrost control. Protection functions included pressure limiting and cutout against excessive pressures, against loss of charge or for freeze protection.
What is the role of air filters in controlling mold? What air filtration efficiency is necessary to remove airborne spores? These are some of the questions HVAC contractors are asking filter suppliers to address regarding their concerns about mold. To answer these questions, Camfil Farr of Riverdale, NJ, says it has become one of the first filter manufacturers to develop specific guidelines on air filter selection for mold control in heating and cooling systems.
In 1997, during a period marked by numerous acquisitions of contracting firms by publicly traded consolidation groups, Gary Doty saw a good exit strategy for leaving the HVACR service business — at a very handsome selling price. On Sept. 30 of this year, Doty bought back his old company and was again an independent owner.
One of the recent trends in certain U.S. markets has been an ongoing working relationship between two of the most recognizable names in the HVACR and home improvement industries — Trane and Home Depot. The News went directly to some of the contractors involved with the Home Depot program to get their impressions of the relationship.
What does an acquisition master look for when he sets his sights on acquiring an HVAC/plumbing company? How does he solve the mystery of placing a value on a business? How much should you sell for? How much should you buy for?
New construction projects are a collaborative effort. It takes the knowledge and know-how of several trades. The HVAC contractor is just one element of the entire design process, but it’s the HVAC system that is the heart of any building. That is why the HVAC contractor must make sure to specify the correct and most reliable system for the job. Bill Wright, owner and creator of Wrightsoft Software, says that by using design software, contractors can ensure that their projects are finished correctly.
T.H. Eifert Inc., based in Lansing, MI, recently completed one of its most challenging projects. The mechanical contractor was chosen to recommend and install the appropriate HVAC systems for the new Michigan Legislative Building. Although the high-profile job was a tough challenge, the project can serve as a case study for the success that can result when builders, designers, and HVAC contractors work closely with one another.