5402847-UIM-A-09176 Johnson Controls Unitary ProductsCOIL INSTALLATIONCOIL/FURNACE ASSEMBLY - MC/FC/PC SERIESCOILSFURNACE ASSEMBLY - MC & FC SERIES COILSThese coils are factory shipped for installation in either upflow or down-flow applications with no conversion.Position the coil casing over or under the furnace opening as shown inFigure 2 after configuring coil flanges as required see “Coil Flange” sec-tion below.COIL FLANGE INSTALLATIONThe coils include removable flanges to allow proper fit up with furnaceshaving various inlet and outlet flange configurations. The two flangesare attached to the top of the coil in the factory during production. Forproper configuration of flanges refer to Figure 3.FURNACE ASSEMBLY - MC SERIES COILS ONLYMC coils are supplied ready to be installed in a horizontal position. Ahorizontal pan is factory installed. MC coils should be installed in all hor-izontal applications with the horizontal drain pan side down.For horizontal left hand applications no conversion is required to an MCcoil when used with a downflow/horizontal furnace. A mounting plate,supplied with every coil should always be installed on the side desig-nated as top side. See Figures 4 & 5.FURNACE ASSEMBLY - PC SERIES COILSDimension “C” should be at least 2/3 of dimension “D”. See Figure 6.IMPORTANTOn all installations without a coil, a removable access panel is recom-mended in the outlet duct such that smoke or reflected light would beobservable inside the casing to indicate the presence of leaks in theheat exchanger. This access cover shall be attached in such a man-ner as to prevent leaks.FIGURE 2: Vertical ApplicationsFIGURE 3: Coil FlangeUPFLOW DOWNFLOWFurnaceFurnaceALTERNATEFLANGE LOCATION(Used for downflow orhorizontal left installations)FACTORYFLANGELOCATION(Used for upflowor horizontalright installations)FIGURE 4: Horizontal Right ApplicationFIGURE 5: Horizontal Left ApplicationFIGURE 6: PC Series Upflow Coil InstallationTable 2: Coil Projection Dimensions - PC Series CoilsCOIL SIZE DIMENSION “C” INCHPC18 3-1/2PC24 4-1/2PC30, PC32, PC35 4-1/2PC42, PC43, PC36, PC37 5-1/2PC48 6-1/2PC60 9FurnaceMounting PlateFurnaceMounting PlateFlexibleDuct CollarDo not drillor Screwthis flangeFieldFabricatedDuctworkUpflowCoilUpflowFurnaceSecondaryDrainPrimaryDrainDC(Min)AlternateDrain Location