PTACs - Split Ductless Systems By Betty Stephens The System PTAC (packaged terminal systems) are also known as wall-split air conditioning systems or ductless systems. These PTAC systems which are frequently used in hotels have two separate units, the evaporative unit on the interior and the condensing unit on the exterior, with tubing passing through […]
Hacking Target By Betty Stephens The hackers who stole millions of customers' credit and debit card numbers from Target may have used a Pittsburgh-area heating and refrigeration business as the way to get in through a back door. Experts believe the thieves gained access during the busy holiday season to about 40 million credit and […]
Callahan-Roach Flat Rate Price Books and Software. This is a trend and the wave of the future. Read and link to article printed in Dallas Morning News on Thursday Jan. 9, 2014. http://www.dallasnews.com/business/small-business/20140108-arlington-niche-publisher-moves-toward-digital-transformation-to-ensure-future.ece
Drop-in Refrigerants Replace R22, that Mix w/ R22 By Betty Stephens R22 Drop In Replacement R22 is the most common refrigerant in residential and light commercial A/C applications. It has been phased out due to damage that it does to the ozone layer, so availability is limited to existing stockpiles and refrigerant recovered from decommissioned […]
Recycle Old Cooling Units By Betty Stephens How do you properly dispose of an old air conditioner? When replacing an air conditioner with a new model, what should you do with the old unit? Can an air conditioner be disposed of in the trash? What is the best way to dispose of an air conditioner? […]
Australia Set to Deploy the World's Largest Wave Energy Device http://oilprice.com/Latest-Energy-News/World-News/Australia-Set-to-Deploy-the-Worlds-Largest-Wave-Energy-Device.html "> Please Enable Javascript for this Energy widget to work
Heating and Cooling Car Seats By Betty Stephens Air Conditioned Seats A standard model for air-conditioned seats, developed by scientists at the Department of Energy's National Renewable Energy Laboratory (NREL), works like this: The fabric of the car seat is a porous mesh, so air can flow through it. Multiple fans inside the seat produce […]
Split Ductless Systems By Betty Stephens A ductless air conditioner, also called a mini-split system, has two major components: a unit mounted on an inside wall that delivers cool air to the room and a unit mounted on the outside of the house. A pair of refrigerant lines that runs between the two systems one […]
Air-Conditioning Heating and Refrigeration Institute (AHRI) By Betty Stephens What is AHRI? AHRI is a trade association of manufacturers and maintains and publishes over 80 standards, mainly related to equipment performance, and many AHRI standards are accepted as ANSI (American National Standards Institute) standards. AHRI’s rating standards, when teamed with ASHRAE’s methods of tests, provide […]
Back-up Generators By Betty Stephens A back-up generator is a back-up electrical system that operates automatically Within seconds of a utility outage an automatic transfer switch senses the power loss, commands the generator to start and then transfers the electrical load to the generator. The back-up generator begins supplying power to the circuits. After utility […]
