The device is so hot that the boiler is not needed! Why does the pump heat up in the heating system of the house
Incorrect operation of the circulation pump leads to various problems, including overheating.
Overheating can cause the pumping equipment to fail, which will stop the entire heating system. This is especially dangerous in winter.
Content
Should the pump in the home heating system heat up?
The purpose of installing such a device is to pump liquids in the heating system and create pressure. These processes help heat the heating device, but not critically.
The temperature of the circulation unit and pipes should be approximately the same.If the deviation is large, then the device is already overheating.
Why the circulation pump heats up: main reasons and methods of their elimination
There are several possible situations that indicate a malfunction of such a device.
Incorrect installation
If the rotor location is incorrectly determined and its axis is displaced from the horizontal, there is the possibility of the air trap effect occurring. As a rule, you will be able to find out about such an erroneous installation of the device immediately after the start of operation of the heating system.
To solve this problem the rotor position will need to be corrected.
Photo 1. Diagram of installation of the circulation pump in the heating system. Its installation will require many components.
The appliance is heating up due to a clogged system
The process of circulation of the coolant through the pipes is fraught with the formation of rust and accumulation of deposits in them. As a result, the pipes narrow, and pumping equipment has to increase its own load to push the liquid. This is how it overheats. Cleaning the heating structure will resolve this situation.
Reference. A solution with caustic soda, which is used to fill the heating system, helps for 1 hour.
Foreign body
Corrosion particles from old pipes or batteries eventually break off and enter the circulation device motor, blocking its operation or causing the windings to burn out.
Unscheduled maintenance of the heating system will help, allowing you to get rid of foreign elements, and repair (or replacement) of the pump.
Lack of lubrication of bearings
In case of its deficit in accelerated mode bearings wear outDue to their unsuitability for further operation of the device, its main element, the engine, jams.
Photo 2. Schematic diagram of the device of a circulation pump with a wet rotor. The arrows indicate the location of all parts, including bearings.
Heating system device will have to be dismantled and taken for professional diagnostics.
Low voltage in the network
The indicator of this parameter below 220V provokes rapid airing of the pumping equipment and its failure. Determining the voltage in the network will help prevent the problem by using a voltmeter.
Insufficient pressure
Overheating causes illiterate connection of phase during three-phase connection to the heating circuit wheels with blades. In this case, the direction of its rotation will be disturbed. Insufficient pressure also occurs when the viscosity of the circulating liquid is increased. In this situation, the working wheel encounters quite a lot of resistance.
To solve the problem, you need to do it at the first signs of its manifestation. check the cross-section of the inlet pipe, set the required data for adjusting the pump and remove any possible deposits on the inlet pipe filter.
Stop after start
This problem arises if the phase wires are incorrectly connected in the terminal box. And the device fuse is equipped with a loose contact.
To fix the problem, you need to removal and high-quality cleaning of clamps.
What to do if the pumping equipment is hot
When such a situation arises, the first thing you should pay attention to is — this is the openness of the shut-off valve. Then the correct installation of the pump, its rotation and the check valve are checked. Air masses must be released from the heating device.
Attention! The rotation of the circulation pump must be in the same direction with an arrow marked on the body.
Compare the temperature of the unit itself and the check valve. The indicator should not differ much.
The problem may also be in the load consumed by the device. For this, each of its phases is checked.
As an option, the pump is disassembled and washed, in order to eliminate the possibility of its clogging.
Useful video
Watch the video, which explains why the circulation pump may overheat and how to fix it.
Seek help from a specialist
It is necessary to resort to such a measure in the event that if performing simple steps does not help to solve the problem and professional advice is needed to get out of this situation.
