How to Solve the Error Code of Temperature Differential Too Big of Inlet and Outlet
The reasons for excessive temperature difference between inlet and outlet water of air-source heat pumps can involve multiple aspects, mainly including the following points:
A. Maladjustment of the proportional valve:
The proportional valve is a key component for controlling the temperature difference between inlet and outlet water. If its adjustment is inaccurate, it can lead to excessive temperature differences. This may be due to faults in the proportional valve itself or improper settings.
B. Pipeline blockage:
If the pipeline accumulates dirt, rust, leaves, tree branches, and other debris, it can restrict water flow, thereby affecting water pressure and temperature difference. These blockages may come from the water source, construction residue, or accumulation after long-term use.
C. Dirty filters:
If the filters at the inlet and outlet are not cleaned regularly, they can accumulate a large amount of impurities, leading to reduced water flow and increased temperature differences. Regular cleaning of filters is an important measure to maintain normal water flow and temperature differences.
D. Air in the pipeline:
If there is air in the circulating pipeline and it is not promptly expelled, it can also affect the normal circulation of water, resulting in larger temperature differences. One method to resolve this issue is to use a water pump to expel the air from the pipeline.
E. Insufficient circulating water volume:
Inadequate water pump flow or a small diameter of the circulating pipeline can both lead to insufficient circulating water volume, which in turn affects the temperature difference between inlet and outlet water. Selecting an appropriate water pump and pipeline diameter is crucial to ensuring a normal circulating water volume.
In response to the above issues, the following measures can be taken for handling:
A. Regularly clean filters: Avoid the accumulation and blockage of filters to maintain smooth water flow.
B. Inspect and clean pipelines: When pipeline blockages are discovered, promptly dismantle the water pipes and clean the debris inside.
C. Adjust the proportional valve: Hire professional technicians to adjust the proportional valve to ensure accurate control of temperature differences.
D. Expel air from the pipeline: Use a water pump or other methods to expel air from the pipeline.
E. Replace or adjust the water pump and pipeline: Replace the water pump or adjust the pipeline diameter according to actual needs to ensure sufficient circulating water volume.
After-sale Sovle Method:
*Please provide pictures or videos of machine operating parameters
1. Check whether the water pump is running normally and whether the waterway is blocked.
2. If the water pump is running normally, the waterway is not blocked. Check the distance between the main unit and the water tank to see if it is too long, causing water pump's delivery head is not enough. Try replacing it with a larger water pump.
In summary, the reasons for excessive temperature differences between inlet and outlet water of air-source heat pumps can be diverse, and troubleshooting and handling need to be carried out based on specific circumstances. Through regular maintenance and servicing of the equipment, this issue can be effectively prevented and resolved.