A spacer pin 2824 extends from the bottom surfaceof the drip shield 2830 and tapers to a contact point. Thespacer pin 2824 may extend to a length such that, when themodule 2812 engages with a rack , only the spacer pinsmakes contact with the upper surface of the rack, while thelocating pins 2813 and T-Latch 2818 enter correspondingholes in the upper surface of the rack. If a broader surfaceof the module, which has greater susceptibility to accumulating frost, were to contact the upper surface of a rack , anice bridge may be formed between the module and the rack ,which may prevent the module from detaching from therack . In contrast, by allowing only the spacer pin 2824 tocontact the upper surface of the rack , any ice bridge thatmayform between the spacer pin 2824 will break when themodule 2812 detaches from the rack . Thus, the spacer pin2824 facilitates detachment between the module 2812 and arack . Although a single spacer pin 2824 is shown, two ormore spacer pins may be implemented . Alternatively,another suitable component, such as an O -ring, a grate , oranother length of materialmay be implemented in place ofthe spacer pin 2824 to ensure a distance is maintainedbetween the module 2812 and a rack