An arrangement for determining adjustment parameters for at least two components (112, 114) of an HVAC system comprising at least one duct, wherein the arrangement comprises at least one processor and is configured to - receive information regarding dimensions and/or layout of said at least one duct of the HVAC system, - receive a first target value for at least one first flow parameter in a first duct location corresponding to the location of a first component comprised in the HVAC system, - receive at least a first measured value for at least one second flow parameter in at least one first measuring location of the duct, - receive location information regarding the at least two components, wherein the location information is indicative of at least a relative location of the at least two components and their location with respect to the at least one duct, - resolve a first determined value for the second flow parameter in the first duct location utilizing the received first measured value for a second flow parameter and the received location information, - determine a first flow factor for the first component utilizing the received first target value for the first flow parameter in the first duct location and the first determined value for the second flow parameter in the first duct location, - determine a first adjustment parameter for the first component through the first determined flow factor, - receive a second target value for at least one first flow parameter in a second duct location corresponding to the location of a second component comprised in the HVAC system, - resolve a second determined value for the second flow parameter in the second duct location utilizing the received first measured value for the second flow parameter and the received location information, - determine a second flow factor for the second component utilizing the received second target value for the first flow parameter in the second duct location and the second determined value for the second flow parameter in the second duct location, - determine a second adjustment parameter for the second component through the determined second flow factor. - receive information regarding dimensions and/or layout of said at least one duct of the HVAC system, - receive a first target value for at least one first flow parameter in a first duct location corresponding to the location of a first component comprised in the HVAC system, - receive at least a first measured value for at least one second flow parameter in at least one first measuring location of the duct, - receive location information regarding the at least two components, wherein the location information is indicative of at least a relative location of the at least two components and their location with respect to the at least one duct, - resolve a first determined value for the second flow parameter in the first duct location utilizing the received first measured value for a second flow parameter and the received location information, - determine a first flow factor for the first component utilizing the received first target value for the first flow parameter in the first duct location and the first determined value for the second flow parameter in the first duct location, - determine a first adjustment parameter for the first component through the first determined flow factor, - receive a second target value for at least one first flow parameter in a second duct location corresponding to the location of a second component comprised in the HVAC system, - resolve a second determined value for the second flow parameter in the second duct location utilizing the received first measured value for the second flow parameter and the received location information, - determine a second flow factor for the second component utilizing the received second target value for the first flow parameter in the second duct location and the second determined value for the second flow parameter in the second duct location, - determine a second adjustment parameter for the second component through the determined second flow factor.