I recently bought a house with an exterior garage. The previous buyer only had an on/off panel installed on the outside with a single Romex running to one receptacle for the garage door opener.
I'm looking to remove the panel and install a subpanel that allows for dedicated circuits to a freezer and also multiple outlets for tools. What is the best way to extend PVC conduit from the outside after removing the panel? There's maybe a 4in difference at a 45degree angle from the end of the previous conduit to where the hole previously drilled into the side of the garage is (circled in blue).
The breaker is a 20amp. The hots are #10 but I did notice the GND is #12 (3.31mm), and I'm not sure why – that's leftover from the previous owner. The conduit is 3/4" schedule 40.
Position of current panel / drilled hole into interior of garage
conduit I'm trying to extend
Best Answer
Is there a reason you want to remove that disconnect? It looks like your feed it #10 and the Romex into the garage is #12. You could just remove the smaller cable and add conduit to you sub panel in the garage and pull #10 wire from there to your sub panel. Only 120V is going into the garage but you have the ability to bring in 240V by connecting the red wire to new wire into the panel. You might have to get a double pole breaker for your main panel if only one hot is energized.
If you have to remove the disconnect, the easiest way would be to get some ENT flexible conduit and cut off about 12" of the existing PVC and connect the L.T. to the end of the existing PVC and the other end to the long end of a LB (pictured below). and the short end into the wall with some additional PVC into the new panel. You'll have to remove the wires before cutting the existing PVC and then re install them (can't cut conduit with wires inside). If they're too short, add a junction box before the ENT and pull additional wire.