Choosing of VRF air conditioning system's implementer company for cooling and heating in buildings by using Promethee method

As the improved technology increases in living standards took out the heating to be the only necessity. People claimed to have cooling and heating comfort according to their requirements at their offices and places of entertainment. VRF systems have variable flow technology. It was developed in Japan to allow the independent control of each multiple unit connected to the outside unit. Each inner unit can operate at different temperature levels. In recent years, new companies placed in the VRF System sector. As a result, it became a complex task for the administrators to decide which is the most suitable implementer out of the alternatives. We proposed a multi-criteria decision-making model to select the most suitable Heat-Pump VRF System implementer company. Election criteria for choosing the implementer company are determined using the working principles and structures of VRF Systems. Election criteria are listed in excel and determined by investigating the updated product catalogs of each company. We compare and rank three different building alternative VRFs as changing criterion weight based on their climate conditions and building qualities by using Promethee Method. The Visual Promethee Academic version is used to create the best implementer company ranking in this study.