An undercharge of refrigerant will cause low head and suction pressures, but that is not the only thing that will cause both pressures to be low. An undercharge will have low condenser liquid subcooling readings on the high side, where a dirty air filter for the evaporator will not produce low condenser liquid subcooling readings.
The supermarket industry realized a long time ago that it is impossible to solve environmental problems related to refrigerant leaks using a repair-based approach (i.e., with policies that focus on leak repair and record-keeping). Yet, the U.S. Environmental Protection Agency’s (EPA’s) main regulatory program to address harmful refrigerant emissions reflects a repair-based policy.
Manufacturers introduce commercial products for cooling season
May 2, 2016
The manufacturers provided all of the data included in the product grid as well as the photo feature. Therefore, any questions should be directed to them via the contact information provided in the photo feature section.
VRF systems have become very popular in the commercial market and are expected to gain even more market share in the coming years. Each system type comes with its own unique set of benefits, and as long as building owners and managers remain open minded, they may be surprised at the possibilities now available.
An investment in innovation came to fruition as Emerson officially introduced its $35 million Helix Innovation Center on April 27. The 40,000-square-foot center, located on the University of Dayton campus, will serve as a commercial building controls and HVAC technology lab.
Expo is a new conference, trade show, and networking event for residential contractors
April 27, 2016
The Service World Expo announced HVAC industry icons Ron Smith and Matt Michel will share the podium for a special “Legends of the Industry” presentation at the inaugural Service World Expo, to be held at the Tropicana Hotel, Oct. 26-27, 2016, in Las Vegas.
The HVAC industry is not immune to this growing trend for on-demand services. Last year, on-demand behemoth Amazon launched Amazon Home Services, offering 15 million service listings across more than 900 professional services, including HVAC. Amazon joins Home Advisor, Thumbtack, and others offering these types of middlemen services to connect homeowners with contractors.
Dozens of major manufacturers are now offering a variety of training options ranging from short online offerings to extensive on-location training in hopes of making ductless HVAC a worthwhile investment for consumers and contractors.