SUPPLY, INSTALLATION SPARE PARTS WITH REPLACE OUTPUT RELAY BOARD YORK PART#025L03042-000, EVAPORATOR COOLER REPAIRING & TESTING COMMISSIONING WITH PRESSURE TESTING BY NITROGEN GAS ,TUBES CLEANING , FLENCH SPACER COOLER GASKETS , SUPPLY& INSTALLATION FREON 22 , 13.6 KG (HIGH QUALITY ), SUPPLY& INSTALLATION LIQUID LINE DRIER CORE FILTERS D48