冷却盘管上的污垢积聚通常不被认为是空调系统故障的主要来源。事实上，显然有人认为盘管冷却是“自清洁”的，因为顺着盘管流动的冷凝水会冲走污垢。这方面的文献也很稀少。ASHRAE手册中唯一的参考是冷却盘管的维护；没有提到污垢积聚的显著影响。然而，冷却盘管可能会被污垢堵塞，导致空气量和热传递降低到系统不再运行的程度。本文描述了此类系统的历史和最终采取的纠正措施，并提出了设计和维护建议，以减少或消除此类障碍发生的可能性。单位:I-PCITION:研讨会，ASHRAE交易，1986年，第卷。 第92页。1B，旧金山

The accumulation of dirt on a cooling coil is not ordinarily thought of as major source of trouble in an air-conditioning system. In fact, there is apparently some belief that coils cooling are "self cleaning" in that the condensate flowing down the coil washes off the dirt. The literature is also sparse in this area. The only reference in the ASHRAE handbooks is to maintenance of cooling coils; there is no mention of the significant effect of dirt buildup.However, cooling coils can become so obstructed with dirt that the air quantity and heat transfer will be reduced to the point where the system will no longer perform. This paper describes the history of such a system and the corrective measures that were eventually taken and makes recommendations for design and maintenance to reduce or eliminate the possibility of such obstructions occuring.Units: I-P