1.When using in cold areas, the system pipes need to be buried deep below the freezing line to avoid pipeline exposure as far as possible.
2.The pipeline should be discharged in time, otherwise the pipeline will burst. Manual operation of valve drainage and installation of relief valve can be adopted to solve the problem.
3.Small holes can be drilled under the pipeline below the freezing line. When the system shuts down, the water stored in the pipeline can be discharged back from the small holes, which can play an anti-freezing role.