How To Service Package Unit|| pakage unit kesy service kren

IN THE VIDEO I TRIED TO EXPLAIN,, HOW EASILY WE CAN SERVICE OUR PACKAGE UNIT... EVAPORATORS,, FILTERS.. AND HOW CAN WE REPAIR DAMAGE DUCT...PACKAGE UNIT ALSO SAME LIKE OUR WINDOW AIR CONDITIONER.... EVAPORATOR,, COMPRESSORS,, LOW PRESSURE SWITCHES,, HIGH PRESSURE SWITCHES,,BLOWER, BLOWER MOTOR,,CONDENSER MOTORS... AND ELECTRICAL PARTS LIKE CONTACTORS, THREE PHASE CONTACTORS AND SINGLE PHASE CONTACTORS..ALL ARE IN THE SAME PLACE AND IN A BOX LIKE WINDOW AC HAVE......AND INSIDE THE ROOM ONLY DISTRIBUTION GRILLS ARE PRESENT. FOR SERVICING UNIT REFRIGERANT MUST BE CHECKED.. AND REPAIR THE SUPPLY AIR DUCT AND RETURN AIR DUCT.
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