Approval for this condition was according to our scope of work of SAMAMA service which means that we will deal with these units for maintaining and attending the trouble calls for it but we will send a quotation for needed material to fix the problem , also , installing new units can be done by our side but it will be done by a quotation for materials needed to install the unit, also , we can offer you a quotation for supplying the desired units with installation includes the price of the unit and the material needed to install the unit. In case of package and duct split units , fabricating and supplying the duct is not in our scope so , it can be done by subcontractor under the name of SAMAMA , as SAMAMA company will offer separated quotation of ducting other than supplying , installation and materials needed quotation .