成套制冷设备相对较新。这一概念大约在20年前开始，近年来发展势头迅猛。本文讨论了目前使用的两种不同的成套制冷系统，以及几种可以用来解冻它们的方法。引文:研讨会，ASHRAE交易，第81卷，第2部分，马萨诸塞州波士顿

Packaged refrigeration equipment is relatively new. The concept was startedapproximately twenty years ago and, in recent years, has gained greatmomentum.This paper discusses the two different packaged refrigeration systems in use and several methods that can be used to defrost them.