Answer: (1) After the air compressor is tested, it should be tested at the temperature specified in the equipment technology to check the reliability of operation at this temperature.
(2) The temperature increase method can be to increase the exhaust pressure (the pressure relay or pressure switch needs to be adjusted accordingly) or to heat the gas at the gas inlet to reach the required temperature.
(3) It should be operated continuously for no less than 2 hours at the specified temperature, and the bearing temperature, motor current and vibration should be checked frequently.
(4) After the temperature test, the trigger point of the temperature and pressure relay should be restored to the original position.
(5) After the air compressor is tested, the sensitivity of the safety valve and the pressure differential relay should be tested at the pressure specified in the equipment technical documents, and their operation should be correct and sensitive.