When the boiler forced draught 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. It should be carefully checked whether the working voltage supplied to the fan power supply meets the requirements, whether the power supply lacks phase or the same Phase, whether the capacity of the distributor component meets the requirements.
The boiler forced draught fan should be no less than two people during the test run. Under normal circumstances, the next person controls the power supply, and one person effectively observes the operation of the fan. The abnormal phenomenon is immediately stopped and checked. First, check whether the rotation direction is correct. After the fan starts running, it should immediately check 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 boiler forced draught fan is in the test, it is necessary to start the low speed first, and effectively check whether the direction of its rotation is correct. When starting the high speed, it must be restarted after the fan is stationary to prevent the high speed reverse rotation, causing the switch to trip and the motor to be damaged.