bids are invited for supply of 20tr ductable package units , itc of 20tr package unit , pressure testing and vaccumming and nitrogen flushout , refrigerant charging entire system , ms structure modification for odu mounting arrangement , dismantling of existing machine , refrigerant piping and modification , communication cable between idu and odu , canvas connection with zip on machine outlet , gi 22gauge duct mouth connection modification , acousting insulation 15 mm thick for the mouth connection modification piece , lifting shifting and positioning of the machines , comprehensive maintenance after completion of warranty 1st year , comprehensive maintenance after completion of warranty 2nd year , comprehensive maintenance after completion of warranty 3rd year , comprehensive maintenance after completion of warranty 4th year , comprehensive maintenance after completion of warranty 5th year total quantity : 1035