ASHRAE期刊的一系列文章最初讨论了不受控泵“联锁”的有害运行影响。“泵联锁”一词指的是以不可预见的并联和串联组合运行的泵——通常可以观察到的结果是:在高于供应的压力下返回主运行。分配主流反转。正在使用的建筑电路中的不可控流量变化。参考文章系列没有分析性地描述问题发生的原因和方式——主要是因为分析方法尚未开发出来。本次讨论的目的是分析性地描述“联锁”故障，并最终为解决现有问题以及预防未来故障提供简单的设计和操作规则。设计规则的应用也可能带来新的泵节能设计方法。 引文:德克萨斯州达拉斯ASHRAE交易会第82卷第1部分研讨会

The evil operational effects of uncontrolled pump "interlocks" were initially discussed in a series of ASHRAE Journal Articles. The term pump interlocks is a reference to pumps operating in unforeseen paralleled and series combinations -- the often observable results being:Return main operation at a higher pressure than supply.Distribution main flow reversal.Uncontrollable flow change in the using building circuits.The referenced article series did not analytically describe why and how the troubles occurred -- principally because analytical methods had not yet been developed. It is the purpose of this discussion to analytically describe "interlock" troubles and to finally provide simple design and operational rules for solution of existing problems as well as prevention of future troubles. Application of the design rules may also lead to new pump energy conserving design approaches.