A must-see for novices (the picture below of the gas boiler installed in the basement is the Baide burner)

Background: Different gas-fired boilers have different back pressures, and the ratio of gas and air intake should be adjusted.

Key points: From the smallest damper angle to the largest damper angle, it needs to be adjusted step by step.

The method is as follows: first adjust the first stage of the servo motor to a lower angle, such as 15 degrees, and fix the servo motor cam of the second stage at 30 degrees . First, turn on the power switch of the first stage and let the burner ignite at the first stage . Large gas flow to 20% of the total load, adjust the fixed screw corresponding to the 15- degree point of the damper cam to the normal or low level of burner noise (strictly speaking, the carbon monoxide concentration of the exhaust gas should be analyzed), then turn on the power switch of the second stage fire, and the servo motor Turn to 30 degrees, if the noise increases, adjust the fixing screw between 15 degrees and 30 degrees, keep the noise to the level of low fire, turn on and off the power switch of the second stage fire repeatedly, so that the noise does not change significantly during the conversion process . According to the above operation, gradually increase the angle of the second-stage fire of the servo motor according to the interval of 10 degrees. When reaching the maximum angle, adjust the damper cam fixing screws one by one at each stage, and switch between large and small fires repeatedly to ensure that the complete process is smooth . No loud noises yet. . . Finally, at the maximum gas angle, adjust the gas flow to the standard flow at full load. During this process, if the noise increases significantly, adjust the corresponding damper cam fixing screw at this time until the noise becomes smaller, and then go backwards to adjust the middle link. The trick is: do not go up, set the fire to 90 Otherwise it is very difficult to adjust!