In recent years, is committed to water, ground source, air source heat pump unit development and use.

近年来致力于水源、地源、空气源热泵机组开发和利用。

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The experiments for different airflow were conducted on an air-to-water heat pump unit and discussed.

采用试验方法研究了风量变化对中大型风冷热泵机组结霜工况性能的影响。

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But all this depend on the steady, safe and highly efficient running of ground source heat pump unit.

但是，这又依赖于热泵机组的稳定、安全、可靠、高效的运行。

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He said well-designed systems can operate effectively in the UK, delivering in excess of three units of heat for every unit of electricity used to pump the heat in and around the property.

BBC: Heat pumps 'need tighter regulations'

For every unit of energy to drive the compressor, the pump yields four units of heat.

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