Preventive maintenance is essential for efficient operation and long service life from packaged terminal air conditioners (PTACs), as well as packaged terminal heat pumps (PTHPs). That’s the word from Ron Bench of Carrier Corp.
AC induction motors, the usual subject of Motor Doctor articles, are one of the world’s great “evergreen” technologies. The basic principles and fundamental designs have been known and applied for approximately 100 years. DC motors became of less importance when DC distribution systems fell into disfavor. But as you will read in this article, they may be one of the industry’s “comeback kids.”
The cost to replace 114 20-year-old McQuay Type K Incremental® room conditioners at a senior care facility could have left facility managers quite cold.
Replacing the units with newer PTACs could have brought a substantial expense to resize the existing nonstandard wall sleeves. However, management quickly warmed up to the idea of installing replacement units in the exact sleeve size they needed and made with the same institutional-grade design and construction of the originals.
The National Association of Women in Construction (NAWIC) will turn 50 next year. Membership in the organization is on the rise, reflecting the increasing number of women in the construction field. According to the Bureau of Labor Statistics, the number of women in construction jobs increased 20% between 1995 and 2000.
Packaged terminal air conditioners (PTACs) and their counterparts, packaged terminal heat pumps (PTHPs), are commonly considered as comfort conditioning units for hotel/motel applications. But they do have other applications beyond that niche, and today’s units offer more features and benefits than those of the past.
Randy Seaman is proud of his 38 employees because each one is an integral part of the Seaman’s Heating, Air Conditioning, and Refrigeration team. And rather than take credit for his company’s most recent award, Seaman prefers to credit his team for the honor.
Many of the product section meetings at the Gas Appliance Manufacturers Association’s (GAMA’s) 67th annual meeting were business as usual — continuations of existing projects, and discussions of federal vs. local regulatory changes. But two product meetings had a different bent. They represented beginnings and possibly endings.
“The year has presented challenges for the industry as a whole and for many of us as individuals. But through it all, we have persevered and remained strong.” Those were the words 2001-02 chairman Steve McLeod used
to open the annual conference of the International Institute of Ammonia Refrigeration (IIAR).
When it comes to CO2, what goes around, comes around. Carbon dioxide as a refrigerant was popular from the late 1800s to the 1930s, before giving way to CFCs. CO2 is now the subject of renewed interest.