2965kpa 1790kpa РR11 240kp-a 125kpa РR113 75kpa 5kpa РR114 580kpa 330kpa РEVACUATION AFTER TESTР测试后的排空РAfter pressure testing the system will be evacuated to the satisfaction of the Engineer before charging with refrigerant.Р压力试验后在充填制冷剂之前系统应该排空РContractor equipment should consist of :Р测试仪器应包括Р: РHigh pressor to evacuate system down to 95kpa absolute. Р大功率压缩机排空系统在 95kpa以下РHigh vacuum pump to further evacuate to 340kpa absolute. Accurate gauges are essential. Р大功率真空泵进一步排空系统至 340kpa,配备流量计РFirst evacuation for 4 hours.Evac. break by dry Nitrogen.Р第一次排空 4小时РSecond evacuation for3 hours.Evac break by dry NitrogenР第二次排空 3小时РCompressor recharged with clean dry oil.Р压缩机使用清洁的干燥油РChange all drier materials / cartriges. Р替换所有干的材料РThird evacuation 2 hours / recharge dry refrigerant. Р第三次排空 2小时,再加入干燥冷媒
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