Commissioning requirements and normal operation of double inlet forward curved centrifugal fans

- Nov 21, 2018-

When the double inlet forward curved centrifugal fan is in the test run, it is necessary to carefully read the product manual, and effectively check whether the wiring method is consistent with the wiring diagram. The double inlet forward curve centrifugal fan should carefully check the working voltage of the supplied fan power supply. Is it in compliance with the requirements, whether the power supply is out of phase or in phase, and the capacity of the distributor components meets the requirements.

The double inlet forward curved centrifugal fan has no less than two people during the test run. One person controls the power supply. One person observes the fan operation and immediately detects the abnormal phenomenon. First check whether the rotation direction is correct. After the centrifugal fan starts running, it should be checked immediately. Whether the running current of each phase is balanced and whether the current exceeds the rated current; if there is any abnormality, stop the inspection. After five minutes of operation, check whether the fan is abnormal or not, and confirm that there is no abnormal phenomenon and then start up.

When the double inlet forward curve centrifugal fan reaches the normal speed, it needs to measure whether the input current of the fan is normal. The running current of the equipment cannot exceed its rated current. If the running current exceeds its rated current, check whether the supplied voltage is normal.