VRF/GHP
AHRI Celebrates Third Anniversary of Industry-first VRF Cert
After a years-long effort developing AHRI Standard 1230, Performance Rating of Variable Refrigerant Flow (VRF) Multi-Split Air-Conditioning and Heat Pump Equipment, and subsequently an Operations Manu...
Landmark building in Glasgow gets Toshiba AC solution
1 August 2014 A landmark BREEAM Excellent rated building in Glasgow is being equipped with a Toshiba air conditioning system. Designed to have a BREEAM rating of Excellent, the 10-storey iconic...
Hitachi AP Releases New VRF for Cold Climates
From June 1, Hitachi Appliances began releasing a new lineup of VRF systems in the ‘Free From Cold’ series for cold climates as well as a new lineup of VRF systems in the ‘Free From Cold Renewal’ seri...
Chigo Explores VRF Market in Anhui
On May 17, Chigo Commercial Air Conditioner 2014 New Product Promotion Conference and Dealer Convention were held in Hefei, which was attended by more than 100 local dealers in Anhui Province. ...
LG Introduces New Water-Source VRF Unit
Jun 13, 2014 Englewood Cliffs, N.J. -- LG Electronics USA has announced the United States availability of the LG Multi V Water IV water-source unit, a new variable refrigerant flow (VRF) HVAC system t...
Mitsubishi launch enhanced heat pump selection tool
12 June 2014 Mitsubishi Electric launches enhanced version of its heat pump selection tool, including calculations for ground or water source applications over 30kW, and extended platforms to include ...
Fujitsu introduces new development strategy
9 June 2014 Fujitsu is currently implementing a raft of new initiatives aimed at developing the VRF sector with major end users, growing its market share and directing more business through its nation...
Samsung Unique Design New AC
Samsung launched the new air conditioner AR09HSSFAWK engineered to deliver exceptional cooling, comfort and hygienic benefits with a striking triangular design. This innovative design allows for a wid...
Chigo VRF in Africa
Chigo boasts strong presence in commercial air conditioners with product portfolio covering light commercial air conditioners, VRFs, and water chillers. In recent years, Chigo has achieved remarkable ...
Panasonic Offering Eco G Series VRF GHPs
Panasonic Eco G series gas-driven VRF systems, New Eco G High Power, Eco G and Eco G Multi, and Eco G 3 Way Multi, are specifically designed for energy saving, easy installation and high efficiency pe...
Aisin Exports GHP Globally
Aisin Seiki started exporting the gas engine driven heat pump (GHP) to Korea, the United States and European countries from 2000. At present, Aisin Seiki is promoting GHP E series that develope...
2.9 Innovative Technology
An inverter and electronic expansion valves are indispensable in the refrigeration cycle of VRF systems. Refrigeration cycles available up through the 1970s combined compression processes in the fixedspeed compressor and expansion processes in the capillary tube or thermal expansion valve. Then, inverter air conditioners designed in the 1980s in Japan varied the speed (number of revolutions) of th...
