The A+P Insulated Penthouse from Colma Coil is an insulated evaporator that is available for all industrial refrigeration system types. Mounted outside of the building envelope, it’s an ideal solution for cold storage warehouses and food processing facilities that seek increased safety and full utilization of the production space. The dual coil configuration in one enclosure allows the end user to sequentially defrost the evaporators, offering more system redundancy. Available with EC fan motors, the configuration provides the ability to mount the penthouse unit off the building roof or accommodate buildings with interstitial space.