7、模拟操作7.1闭合电源开关，电源指示灯亮，仪表上电信窗口显示进入工

7. Analog operation <br>7.1 Close the power switch, the power indicator light is on, and the telecom window on the meter shows that it is in the working preparation state. <br>7.2 Press the oil pump start button, the oil pump operation indicator light is on, check whether the operation direction is correct and whether there is any abnormal sound. If the reverse phenomenon occurs, it can be corrected by adjusting the phase sequence of the oil pump motor wiring. <br>7.3 Check whether the expansion tank liquid level alarm is reliable. When the liquid level is lower than 1/3 of the expansion tank height, a low liquid level alarm should occur; otherwise, the setting of the float level controller should be adjusted. <br>7.4 Manual over-temperature alarm instrument or temperature switch, check whether it is sensitive and reliable. <br>8. The heating operation operation <br>is confirmed by the simulation operation-after it is normal, the heating operation can be carried out. <br>8.1 Adjust and set the parameter values ​​of each instrument according to the heating requirements. <br>8.2 Start the oil pump. <br>8.3 Press the heating button, the heating indicator light is on, and the system starts to heat up. At this time, observe whether the indications of the various meters are correct. If there is a reverse indication or indication, check whether the thermocouple or thermal resistance connection is correct.

7, simulation operation<br>7.1 Close the power switch, the power LED is on, and the telecommunications window on the meter shows that it is ready for work.<br>7.2 Press the oil pump start button, the oil pump running indicator is on, check the correct direction of operation, there is no abnormal sound. In the event of a reversal, this can be corrected by adjusting the sequence of the oil pump motor wiring.<br>7.3 Check whether the expansion tank level alarm is reliable, when the level is less than 1/3 of the height of the expansion tank, a low level alarm should occur; Otherwise, the settings of the float level controller should be adjusted.<br>7.4 Manual over-temperature alarm meter or temperature switch to verify that it is sensitive and reliable.<br>8, heating operation<br>After the simulation operation confirms - - cut normally, the heating operation can be carried out.<br>8.1 Adjust and set the parameter values of each instrument according to the heating requirements.<br>8.2 Start the oil pump.<br>8.3 Press the heating button, the heating light is on, the system starts to heat up, at this time to observe whether the instrument indication is correct, if there is a reverse indication or indication, should check the thermocouple or thermocouple wire is correct.

7. Simulation operation<br>7.1 close the power switch, the power indicator light is on, and the telecommunication window on the instrument shows that it enters the working preparation state.<br>7.2 press the start button of oil pump, and the oil pump operation indicator light is on, and check whether the operation direction is correct and whether there is abnormal sound. If there is reverse phenomenon, it can be corrected by adjusting the phase sequence of the oil pump motor.<br>7.3 check whether the liquid level alarm of expansion tank is reliable. When the liquid level is lower than 1/3 of the height of expansion tank, low level alarm shall occur; otherwise, the setting of floating ball level controller shall be adjusted.<br>7.4 manual over temperature alarm instrument or temperature switch shall be used to check whether it is sensitive and reliable.<br>8. Heating operation<br>After the simulation operation confirms that the temperature rise operation can be carried out after the switch is normal.<br>8.1 adjust and set the parameter values of each instrument according to the requirements of heating up.<br>8.2 start the oil pump.<br>8.3 press the heating button, the heating indicator light is on, and the system starts to warm up. At this time, observe whether the indication of each instrument is correct. If there is reverse indication or indication, check whether the thermocouple or thermal resistance wire is correct.<br>