1656 AC 2-1,2655 AC 1-1,1655 AC 1-1, coo ~~~~~ 1656 AC 2-1,2655 AC 1-1,1655 AC 1-1, coolant pressure fault,during DT cx ,To rectify.  1655 A/c 1-1 & 1656 A/c 2-1 found low freon. Charge freon to LP 35 psi HP 110 psi. 2655 A/c 1-1 found over charged LP 90 psi HP 170 psi. Reduced to LP 35 psi HP 110 psi - Done. Monitor for 3 hrs & no fault occurred. No freon leak found & cut in/out operation check - OK. Temp. able to reach 23'C to 25'C.  Sarma/Kiran 44073