3542 A/C 1-1, 1542 A/C 1-2 coolant fault ~~~~~ 3542 A/C 1-1, 1542 A/C 1-2 coolant fault.  3542 A/c 1-1 found LP (10 Psi), charged freon to 50 Psi. Function test & monitor for 1 hr - OK. No leakage found on A/c pipings/CCU. 1542 A/c 1-2 found LP 15 Psi & charged freon to 50 Psi. Function test & monitor for 1 hr - OK. No leakage found on A/c pipings/CCU.  Aminur/Kiran 44008