The air energy heat pump run for a long time

Many air source heat pump manufacturers will indicate the running time of the unit in the installation manual. The normal running time of the unit should not exceed 12 hours, so what happens when the air source heat pump runs for a long time? What are the serious consequences?

The start-up and shutdown of the air energy heat pump are realized by the set temperature of the unit. When the unit has not reached the set temperature, the unit will always be in the running state; when the unit reaches the set temperature, the unit will stop and rest; From this, we can see that the start and stop of the unit are directly related to the set temperature. When we use the unit, we should set the temperature reasonably according to our own requirements.

First. What will happen if the air source heat pump runs for a long time?

The long-term operation of the air source heat pump is only harmful to the unit itself, not beneficial. The long-term operation will easily cause aging of electrical components, short-circuit phenomenon, or burn out of the compressor, which will affect the service life of the unit.

It has been proved by practice that the life of a unit operating for a long time is often 30% shorter than that of a unit operating within a reasonable range, and the failure rate is about twice as high; if the unit is operated for a reasonable time, the life of the unit is often as high as 15 years or more. Low failure rate.

Second, what is the reason for the long-term operation of the air source heat pump?

1. The selection of the unit is too small, commonly known as a small cow pulling a cart.

Many dealers, due to an unreasonable selection of models, have caused the model selection to be too small. When the user needs heat, the unit cannot provide enough heat, causing the unit to run for a long time, or in order to ensure the profit point of the project, reduce the air source Heat pump prices, etc.;

Furthermore, in order to reduce the initial investment cost, the user selects a unit too small, which causes the heat production of the unit to fail to meet the heat consumption requirements of the user, resulting in the long-term operation of the unit.

2. Environmental and climate reasons.

Air energy heat pumps generate heat by absorbing heat in the air, so as the ambient temperature decreases, the heat output decreases accordingly. Many dealers do not consider the winter operation of the unit during the selection process. When operating at a lower temperature, the heat absorbed in the air is reduced, and the heat obtained by a single ring of the unit becomes less.

In order to achieve the same heating capacity, the working time of the unit will be longer, so it is recommended that the normal design working time during the selection process is generally between 10 and 15 hours.

3. The installation of the project is unreasonable.

For example, during the installation process, the corresponding measures for the ventilation of the unit were not done well, or the exposed hot water pipes were not subjected to corresponding insulation measures so that the heat was dissipated invisibly, which is also the reason for the long-term operation of the air source heat pump. , so the installation of the unit must be installed by the heat pump manufacturer or a professional installation team.

Written by: FUJIREJA GROUP
The Exporter and Manufacturer of Heaters since 2003
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