Draft regulator for solid fuel boiler: installation and adjustment

The force of traction can be considered a rather heterogeneous and complex concept, which includes several factors. To ensure stable operation of the equipment, it is necessary to maintain this parameter at a certain level. This concerns the functioning of any boiler equipment, because the deviation in the force of traction from the normative parameters affects fuel combustion and energy generation.

Often violations occur when installing equipment that operates on solid fuel. The problem can be solved with the help of a traction regulator, which is used in conjunction with solid fuel boiler equipment.

Instead of the preface

Today, high technologies allow creating various automation tools, thanks to them the boiler equipment works independently, and it is almost unnecessary to pay attention to it. But most of them use electricity, which is not very convenient. Along with interruptions in the supply of electricity, the house is filled with cold, this situation can not be called rare. As a reason, the heater switches off automatically.

However, on the market today you can find quite simple means of automation, which do not need electricity for work, here you can include the traction controller, which is used in conjunction with the boilers with a mechanical drive.

Description of traction force

This parameter depends on many factors, among them:

• weather;
• Section of the chimney;
• Temperature of gases.

All this can affect the operation of the device, so the specific conditions must be considered individually. Another parameter that can escape from the attention of consumers, but has a great impact on traction, is the type of equipment. When using a gas device, the thrust force can vary slightly, the final value is stable. This is due to the fact that the flue gases have almost the same temperature.

The deviation occurs only when the chimney is warmed up, the value changes for a short time. Solid-fuel equipment demonstrates different data. Judging the effect of models on traction is impossible. This is due to the use of different types of fuel. The heterogeneity of the indicators also depends on the type of solid fuel boiler.

The device and the description of the principle of action

The installation of the traction control is quite simple, like the design, as an example can be exemplified by the RT 10 regulator, which consists of:

• Handles;
• Temperature corrector;
• Stock;
• The executive mechanism;
• Guide;
• Housing;
• Submersible sleeve;
• Temperature sensitive element;
• Springs;
• Lever;
• Chain drive;
• Chains;
• Screw fastening the handle;
• Of the screw of fastening of the lever.

Depending on which boiler design is used, the controller can be installed in different locations. The main condition in this case is that the immersion sleeve must be in contact with the coolant. It contains a thermosensitive element that is filled with gas or liquid, it expands when heated. As soon as the water temperature starts to increase, the thermocouple will act on the mechanism that starts the chain drive lever. The chain will cover the damper. Air supply in this way will be limited, the burning intensity is reduced. When the temperature of the water in the jacket drops, the thermocouple will open the door, which will resume the air supply.

Installing the thrust adjuster

The traction controller can be installed by you yourself. This element must be in the front or side of the equipment. Install the device in a special hole. The installation work is carried out using screw connections that can be adjusted, this aligns the element in the correct position, which can be horizontal or vertical.

Once all screws have been leveled, they must be secured and sealed using special tools. Install the lever in such a way that the hole through which the chain leaves will be located above the flap. Once the draft regulator is installed, the boiler equipment can be melt and bring the coolant to a mark of 60 ° C. This temperature should be set on the regulator. The regulator lever is connected with a chain, the flap should be open approximately 2 mm or less. When calibrating the instrument, the flap must be closed, it must be done manually or by shortening the chain.

Recommendations of a specialist

When the thrust adjuster is mounted, the next step is to set a higher temperature - at around 80 ° C. If the device is calibrated correctly, then when this parameter is reached, the shutter will be closed automatically. The mechanical thrust adjuster is not as accurate as automatic, and the difference can be as high as 5 ° C. Automatic instruments can be installed on the boiler, and they will not require additional human intervention.

Carrying out the adjustment

The draft regulator for the boiler has two types of markings, which are used in different positions. If we are talking about the RT 10, then we can state that its red scale is used for working in a horizontal position, and the yellow one in a vertical one. The product can be adjusted by detaching the lower end of the chain from the air damper. At the same time, the screw is loosened. After selecting the color of the scale, you must set the desired temperature.

The heat generator is ignited, heated, during which the temperature of the coolant is controlled. Once the temperature reaches the desired value, the end of the chain should be put on the ash door. When the chimney draft controller is calibrated, the chain must be stretched and its free stroke must not exceed 1 mm. Then the handle is fixed with a screw.

Conclusion

Once the setting is completed, the thermostatic regulator should be checked, and the temperature can be changed while the handle is moving. The operator should compare the value with the thermometer reading.