HVP Magazine-How to protect heat pumps in winter

2021-11-24 03:25:01 By : Ms. Alina Mao

Heat pumps are becoming more and more popular because they can increase the efficiency of the energy system and reduce bills. But they can be an expensive investment that needs to be protected, which means careful consideration should be given to the components that optimize and protect each part of the system. Here, we explore two components that, if installed correctly, can help to do this.

The antifreeze valve is a cost-effective solution to protect heat pump installations from freezing, which is a common problem in winter. 

The antifreeze valve is designed to be installed on the flow and return pipes of the heat pump and the external pipes. By opening at a temperature below 3ºC, the antifreeze valve allows the contents of the system to drip and discharge safely, preventing the system from freezing and protecting the device. When the temperature is higher than 4ºC, the valve will be closed again to stop unnecessary drainage. 

In general, it fits its meaning perfectly, and it can prevent the heat pump and pipes from freezing. Adopt the valve specially designed for heat pump installation, compact structure and easy installation. 

Even when installed in particularly exposed areas-those areas that are usually most affected by icing-the antifreeze valve can continue to function effectively. It becomes particularly useful during the coldest months because it helps to avoid the need to replace the refrigeration unit by maintaining the heat pump and piping system, thereby helping to save thousands of pounds. 

Once protected, system performance can be optimized. The efficiency within the system depends on whether the "start" phase of the heating cycle is properly balanced, thereby preventing it from consuming too much energy. If the heat pump device consumes too much energy, the end user may see a negative impact on the operation of the entire system. 

Any system that uses heat pumps as energy sources will benefit from installing automatic dynamic balancing valves. 

By using settable flow, pressure-independent thermostatic radiator valve (TRV) to accurately manage the flow of the entire heating circuit, installers can optimize their design and ensure that each part of the system receives the correct energy independently, thereby increasing the working heat pump The life of the compressor. 

In addition, any circulation loop that serves the secondary system must be balanced, which means that it must be constructed in a way that guarantees the design flow rate of the heat medium. Therefore, specific balancing equipment may be required, depending on the type of system and equipment used. 

The automatic dynamic balance and independent pressure regulation of the heating system are crucial to the optimization of the heat pump installation. The thermostatic radiator valve (TRV) can combine these different functions with thermostatic, electronic or thermoelectric control in one component.

Automatic dynamic balance TRV can automatically balance the heating system to ensure that each terminal receives the set flow rate. Even when the partial loop is closed, the flow rate in the open loop remains unchanged at the set value through the regulating valve-this is an important feature of the system powered by the heat pump. 

Using this type of TRV, with the thermostatic control head, the ambient temperature can be automatically kept constant, thus ensuring effective energy saving.

The installation of antifreeze valve and automatic balance TRV will protect the investment of the end user and the hard work of the installer. Considering the installation costs of more environmentally friendly technologies compared to standard natural gas or petroleum installations, the benefits of relatively small expenditures to protect this investment are obvious. 

Heating Ventiating & Plumbing (HVP) magazine is a leading plumbing and heating magazine for installers. It first delivers news to you and produces unparalleled news reports that will make you professionally ahead of your competitors.

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