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As a major power consumer in intelligent building system, the control system of central air conditioner generally adopts industrial frequency operation and is at full load for a long time, thus consuming a lot of power.

In order to change this situation, Hpmont has developed a special control cabinet for central air conditioning energy saving, which integrates HMI, IPLC and inverter, and installs temperature sensors at the location of chiller and cooling pumps, so as to accurately transfer the medium temperature signal to the inverter, and adjust the system operation through temperature difference/temperature, so that the system can "take a breather" from time to time, so that it can realize constant temperature, and also save energy and reduce emission.

Central air-conditioning energy-saving special control cabinet

1、Free switching of industrial frequency conversion, energy saving rate ≥ 30%

Two kinds of control mode, can ensure never stop; through the temperature or temperature difference automatically adjust the frequency of inverter operation, to achieve constant temperature control, saving energy.

2、Curved slot wiring design, simple and beautiful

System highly integrated, unified wiring from the lower end; optional floor/wall mounting, wiring and commissioning are very convenient.

3、Small impact, low maintenance cost

Soft start and soft stop, reduce the impact on the motor, pump and pipeline, reduce maintenance costs, and maximize the service life of the product.

4、Carrying the Internet of Things, real-time monitoring

Users can view equipment operation status and data by logging into cell phone APP, upper computer and remote platform; the system can automatically report faults in time, thus enhancing the safety supervision ability of properties.

Its built-in industrial IOT system is important to ensure the normal implementation of the project, such as some precision experiments need to be carried out at a constant temperature, once the temperature environment has changed, it will cause incalculable losses, so property managers need to be the first time to grasp the air conditioning operating status to avoid the failure of the project to bring unnecessary losses.

 Application Cases

▼Shenzhen - An enterprise R&D center building

The building's central air conditioning control system is equipped with four 18.5KW motors, and two energy-saving special control cabinets control two cooling pumps and two refrigeration pumps respectively, with a power saving rate of ≥ 30%.

With a minimum power saving rate of 30%, the central air conditioner works 12 hours a day, the building can save electricity costs ≈ 6W a year, which is a great cost saving for the enterprise, and at the same time ensures the smooth development of major projects!