Compact modular refrigerant coil apparatus and associated manufacturing methods

Abstract From the Canadian patent

Using a series of identically sized single row, single, circuit refrigerant coil modules fin/tube refrigerant coils of, different nominal air conditioning tonnages are constructed by arranging different numbers of the identically sized modules in accordion-pleated orientations, with each modular coil having the same depth in the direction of intended air flow across the coil. Compared to conventional "A" coils used on the indoor side of air conditioning circuits, these accordion-pleated modular coils are more compact in the air flow direction provide more coil surface, area, permit lower coil face velocities with higher fin density and significantly reduce the overall coil manufacturing …