DP - 2020 Jan 02,
TA - Oriental Journal Of  Physical Science
PG - 42-50
VI - 10
IP - 12
4099 - orientaljphysicalsciences.org/article/72/
4100 - orientaljphysicalsciences.org/article/72/
AB - In this report, the maintenance of the chiller ciat to feed the cooling capacity of the presidency of Al-Nahrain University and the student club buildings was achieved. The chiller ciat was repaired and operated by using the planning study for the maintenance and complete all faults that leads to stop the chiller from working. The results for repairing are very good and the chilled water temperature is (7 oC) to feed the air handling units, which gives the cold air inside the building to all facilities such as (offices, and hallways). According to the maintenance of the chiller ciat was utilized the best material and with cheap prices, which were brought from the local markets, such as: gat valve to open/close the chilled water that exit from the evaporator to the pumps, air vents, filters, ball bearing type (NSK-Poland) and it size was (6005Z). For repairing the package unit of the computerize center in the student club building was invented a new method that leads to cool this place with facilities such as (offices, and hallways). A better performance was achieved for the output chilled water from the chiller and the air handling units are able to give a cooled air to all facilities inside the buildings. This report is one of the first maintenance studies to repair the chiller ciat with these problems in very hot atmosphere. Where is utilized some procedure for the first time to prepare the air cooling for all offices in buildings.