Field conversion: downflow zero-clearance

What is going on

Converts the furnace to downflow zero-clearance. Requires parts from the parts bag, conversion kit RXGY-CK and zero-clearance kit RXGY-ZK. Tools include an electric drill, 3/16" and 1/8" bits, pliers, flat-head screwdriver, 1/4" and 5/16" hex drivers, tubing cutter, PVC glue and primer and a hammer. Steps 1 to 4 are shown with the furnace in the as-shipped condition. Source page text is partly jumbled.

Check in this order

1. Remove the elbow, both couplings and the flue transition. Retain the elbow and couplings for later use. Remove the coupling on the inducer with the elbow for easier removal.
2. Remove the trap and hoses. Remove the two screws and pull the trap straight out. Retain hose D.
3. Install the 2-5/8" flush mount plug.
4. Remove the left 2-3/8" flush plug in the blower shelf and discard it.
5. Move the right 2-3/8" flush mount plug from the blower shelf to the top plate.
6. Move the .403" drain plug in the collector box.
7. Follow the remaining zero-clearance steps for pipe assembly and collar gasket installation as shown in the kit drawings, using the parts listed for RXGY-ZK.

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