Tech found supply water line to be clogged, attempted to untold with air and water with no success. Will need to cut line which requires shutting the entire system down. After speaking with the supervisors for the building they want it done either after hours around 4/4:30pm or on a Saturday so it doesn’t affect patient care. They stated they would have the building owners contact the office to schedule the best day to complete work on. Room 112 Inlet and outlet lines were crossed, water was coming in thru the outlet and not the inlet. Tech met up with the Plummer and corrected the water lines. Tested system in cool mode and temperature went down from 76 to 72 thru out the visit, delta T o 18 degrees. System #2 is back cooling.