Search results
Results from the WOW.Com Content Network
American Residential Services (ARS) is a United States network of plumbing, and home and commercial heating and air conditioning businesses, operating under the trade name ARS/Rescue Rooter. The trade name came from the acquisition and merging of ARS and Rescue Rooter by their then-parent company ServiceMaster .
Variable refrigerant flow (VRF), also known as variable refrigerant volume (VRV), is an HVAC technology invented by Daikin Industries, Ltd. in 1982. [1] Similar to ductless mini-split systems, VRFs use refrigerant as the primary cooling and heating medium, and are usually less complex than conventional chiller-based systems.
Silent-Aire was a Canadian firm that specialized in data center cooling systems. The deal was structured as follows: Johnson Controls paid $630 million upfront, and additional payments were made contingent upon reaching certain milestones, with total price capped at $870 million.) [citation needed]
Commercial refrigeration. Refrigeration is any of various types of cooling of a space, substance, or system to lower and/or maintain its temperature below the ambient one (while the removed heat is ejected to a place of higher temperature). [1] [2] Refrigeration is an artificial, or human-made, cooling method. [1] [2]
The Air Conditioning, Heating, and Refrigeration Institute (AHRI), formed in 2008 by a merger of the Air-Conditioning and Refrigeration Institute (ARI) and the Gas Appliance Manufacturers Association (GAMA), is a North American trade association of manufacturers of air conditioning, heating, and commercial refrigeration equipment. [1]
A representative pressure–volume diagram for a refrigeration cycle. Vapour-compression refrigeration or vapor-compression refrigeration system (VCRS), [1] in which the refrigerant undergoes phase changes, is one of the many refrigeration cycles and is the most widely used method for air conditioning of buildings and automobiles.
Propane refrigeration is a type of compression refrigeration. Propane (R290) has been used successfully in industrial refrigeration for many years, and is emerging as an increasingly viable alternative for homes and businesses. Propane's operating pressures and temperatures are well suited for use in air conditioning equipment, but because of ...
Type X is the most common and is used in above-ground service, including drinking water supply, hot and cold water systems, sanitation, central heating, and other general purpose applications. Type Y is a thicker walled pipe, used for underground works and heavy duty requirements, including hot and cold water supply, gas reticulation, sanitary ...