1. What is the reason for half of the radiator to be hot and half not to be hot?
The unreasonable installation of the heating system pipes, resulting in air locks inside the pipes, blocking or reducing the pipe section The flow cross-sectional area of results in local non-heating. At this time, the slope of the pipe section should be adjusted to make it meet the slope and aspect of the design requirements. If the heating in the home is not hot locally, it may also be caused by “air blockage”.
The solution is:
1. Gently twist the air release needle on the upper part of the radiator a few times (counterclockwise) to exhaust.
2. When “air blockage” occurs in floor heating, the valves on the branch pipes of each loop of the water distributor and water collector should be closed first, and then the valve of the “gas collection” pipeline should be opened to release the air from the water distributor. Exhaust at the needle.
3. When deflating, in order to prevent water from spraying on the wall, it can be covered with a towel, and the air needle should be gently twisted, do not pull it out, and screw it on when water flows out.
4. If the upper part of the radiator is hot and the lower part is cool, there may be a foreign body blockage, and professional maintenance personnel should be contacted for flushing.
Second, what should I do if the radiator in the home is half hot and half not hot
1. When the radiator is connected in parallel, when the radiator is hot on the top and cool on the bottom, it indicates that there is deposition objects, need to open the live section to clear the object block. The radiator is cool on the top and hot on the bottom, there may be air blockage, you need to open the radiator vent valve to release the air. If the overall radiator in the tandem user room is cool, the upper and lower parts of a single group are not hot or the upper and lower parts are cool, the method of single household exhaust, top venting, and bottom draining is adopted to solve the problem.
2. In a single-family home, if one group of radiators or several groups of radiators are not hot, the reason may be that the heating adjustment is not in place, and indoor adjustment is required. The indoor heating can be connected in parallel. The valves of the first group of radiators entering the house are opened smaller, and the valves of the radiators after that are opened larger in turn.
Three, how to solve the problem that the heating is not hot
First of all, let’s understand what are the main reasons why the radiator is not hot?
1) The building is supplied with insufficient return water pressure;
2) The water supply and water temperature are not enough;
3) The hydraulic imbalance of each branch pipe in the system;
4) The air is blocked and the water flow is cut off;
5) The number of radiators is not enough or not selected according to the actual water temperature;
6) The heat dissipation performance of the radiators is inaccurate;
7) The vertical imbalance of the system, the horizontal imbalance of the system;
8) The pipeline is blocked or the valve cannot be opened;
9) The thermal insulation condition of the building envelope is not enough ;
10) Insufficient heating time;
11) The new house or its neighbors are not heated.
