The heating is not hot during heating. There are various reasons: the user can not operate, the radiator itself, the installation of the radiator, the indoor heating system, the outdoor main pipe, and the heat source.
The reasons for not operating include: not opening the temperature control valve, the main valve or the branch valve of the water divider, and not performing the exhaust in time; the quality of the radiator itself causes little heat, and it is almost impossible. The radiator is open, and there is nothing that is not hot. As long as the radiator is hot after debugging, it can be determined that it is not the problem of the radiator; the problem of radiator installation is mainly the installation error of the interface method; Including: reverse connection of the inlet and return water, clogging of the system with stolen goods, etc.; outdoor supervisor problems include: reverse connection of the inlet and return water, filter clogging with stolen goods, etc.; heat source problems include: low pressure, small pressure difference, and high water temperature Inferior, the following is a description.
1. There is gas in the radiator.
performance is: the group radiator has a few hot and a few are not hot, for the bathroom radiator, the bottom is hot and the top is not hot, or there is the sound of water flowing in the radiator. Don't be in the first half of each year when heating starts, this situation often occurs because of the large amount of gas in the heating system of the entire community.
Solution: often open the manual exhaust valve on the radiator until there are no bubbles in the water flowing out.
2. The manifold valve is not opened.
performance: some radiators are hot, some are not.
Solution: check whether each branch valve on the water separator is open, if not, screw the valve handle parallel to the branch pipe.
3. The temperature control valve on the radiator is not opened.
performance is: the radiator is not hot.
Solution: Check whether the temperature control valve of the non-hot radiator enters the return water is opened. The clockwise direction is closed (S direction), and the counterclockwise direction is open (O direction). If it is not open or the open is small, turn it counterclockwise to the end.
4. The installation method of the radiator is wrong.
is expressed as: part of the radiator is hot, or only the main pipe below is hot. For example, if a four-opening (also called top-in and bottom-out) radiator is installed with bottom in and bottom out, water will flow directly from the lower main pipe, only the lower main pipe is hot, and the upper radiator is not hot, and the following radiator is installed When it becomes top-in and bottom-out, some pieces will not be hot, etc.
Solution: find the HVAC company that installed the radiator to reinstall or replace the radiator.
5. The radiator inlet and return pipes are reversed.
performance is: in the case of the main pipe is not reversed, the underside of the radiator heats up first, and the heating effect is worse than normal.
Solution: Find the company that installed the radiator to adjust it.
6. The temperature control valve is blocked.
performance is: the blocked radiator is not hot. As the stolen goods in the system blocked the inner cavity of the temperature control valve, water could not pass through.
Solution: Find the property or HVAC company to remove the temperature control valve for cleaning or replace with a new temperature control valve.
7. The radiator or the system is blocked by stolen goods.
performance is: the heating effect of all the radiators in the home is lower than that of the previous year or the previous stage, or some radiators are not hot at all, don’t be those users who have not installed filters on the outdoor mains.
Solution: Find the property to thoroughly flush the entire heating system at home.
8. The heating supervisor is connected upside down.
performance is: the top of the radiator that goes in and the bottom of the radiator heats first, and the top is hot, the temperature of the main pipe connected to the heat meter is lower than the temperature of the other main pipe. Reverse connection of the main pipe is very harmful. Not only is the heating effect of the radiator poor, but the heating water flows into the indoor heating system from the return pipe without a filter, and the radiator and pipes are easily blocked by stolen goods.
Solution: If it is an error in the riser water supply, find the property company to adjust it; if it is only the household supervisor who connects it, find the indoor heating system company to adjust it.
9. The supervisor filter is blocked by stolen goods.
The performance is: each group of radiators in the house starts to heat up, and after a while, most of the radiators gradually become cold. Reason: The filter installed on the inlet pipe in the pipeline well was blocked by stolen goods.
Solution: find the property to clean the filter.
10, the heating system pressure is low.
Direct performance: some radiators in the room are hot, some radiators are not hot, or they are not hot at all, or the results are poor. Reason: Generally, it is necessary to ensure that the heating pressure of the home is not less than 0.3Mp (normally between 4-8Mp). When the heating starts every year, because the property company is afraid that the system pressure is high and the leaking of the pipe occurs, there is a low pressure test In the operation stage, if the household pressure is still lower than 0.3Mp after 10 days of formal heating, it is necessary to find the property company to solve the problem. The supplier of the radiator cannot solve it.
11. The inlet and outlet water pressure difference is small.
directly shows that the radiator is not hot, or some heat is not hot, or the top of the radiator is hot and the bottom is not hot, etc. Turn off the other radiators and only turn on the radiator that is not hot. If it is hot at this time, it means that the pressure difference between the cargo and the cargo is small. The reason is: the pressure difference between the inlet and return water is small, the water flow is slow or simply does not flow. The difference between the pressure of the inlet water and the pressure of the return water is not less than 0.05Mp, otherwise, even if the water supply pressure is relatively high. High, because the pressure difference is small, like a calm river without a drop, it can’t flow, and the heating effect is of course not good.
Solution: find the property company to adjust the pressure difference when entering the house.
12. The heating water temperature is low.
performance is: the radiator is not too hot, or although the radiator is a little hot, the indoor temperature never reaches the home standard 18℃. The general heating design standards for residential quarters are: inlet water 80°C, return water 60°C, and room temperature 18°C. The radiator configuration is also in accordance with this standard configuration. If the water temperature is low, the heat dissipation of the radiator will decrease. Of course, the indoor temperature cannot rise to the heat load required for the room.
Solution: Find the property to increase the temperature of the heating water in the house to meet the design requirements.
13. The number of radiators is not enough.
The performance is: when the supply and return water temperature and pressure difference meet the design requirements (general design standards are 80℃ for inlet water, 60℃ for return water, and 18℃ for room temperature, household pressure not less than 0.3Mp, pressure difference not less than Less than 0.05Mp), the surface temperature of the radiator is very high, but the indoor temperature has never reached the home standard 18℃.
Solution: If the house does not have an energy-saving design, such as single-glazed windows, add double-glazed windows, or replace thicker curtains, etc. If the temperature is not enough, consider replacing the radiator with larger power
