日本表示，在东京安装的约14000台燃气机热泵（GHP）的维护过程中遇到的问题包括许多在燃气机用作空调时可能具有指导意义的问题。声明，通过对这些案例的分析，问题的原因已得到澄清，并制定了应对措施，从而提高了提供此类应对措施的GHP的质量。介绍了燃气机、制冷循环和控制系统的相关对策，强调了燃气机热泵设计中应考虑的问题。关键词:热泵，燃气机热泵，维护，日本，空调，质量，设计，制冷，控制: ASHRAE Trans。1992年，第98卷，第一部分，论文编号AN-92-10-11975-981，7个图，5个标签。

States that problems encountered in the maintenance of around 14 000 gas-engine heat pumps (GHPs) installed in Tokyo include many that could be instructive when gas engines are to be used as air conditioners. States that from an analysis of these cases, the causes of problems have been clarified and the countermeasures have been established so that the quality of GHPs provided with such countermeasures has been upgraded. Introduces countermeasures related to the gas engine, the refrigeration cycle and control system to highlight those points that should be considered in designing gas-engine heat pumps.KEYWORDS: Heat pumps, gas engine heat pumps, maintenance, Japan, air conditioning, quality, designing, refrigeration, controls