For the reasons of nature conservation great attention is paid at the systems that use low-grade heat sources in their work (that is heat energy of soils, air, discharge and drain).
原因自然保护的关注在系统使用低品位热源的工作(热能的土壤、空气、放电和排水)。
2
The installation of a Watts air gap with the drain line terminating above a floor drain will handle any normal discharge or nuisance spitting through the relief valve.
连接通向地漏的排泄管的美国瓦茨气隙的安装将有助于处理通过安全阀排出的任何正常排放或有害的泄漏。
3
A drain line should be attached to the relief valve to channel any potential discharge to a safe place of disposal.