I'm installing a room air conditioner in an office above the garage. This unit runs on 220v, and draws 7.1 amps. There is no 220v outlet in that room, so I am thinking of installing a sub panel in the garage below for this 220v circuit, and also add two 110v 20 amp circuits for the garage. I will be running my BT3000 on one of these 110v circuits, and a 1hp, 110v (12 amp) dust collector on the other. I have 100 amp main service, with a couple of spaces for additional breakers. So here's what I'm thinking....... does this sound right?
1) Install 50 amp two pole breaker into main service box, something like this http://www.lowes.com/lowes/lkn?actio...250&lpage=none Note, main service panel is GE brand that takes 1/2" breakers.
2) Run 4(ea) 6AWG wires to this sub panel, two hot, one neutral, and one ground. Be certain that ground and neutral are isolated from each other within the sub panel. http://www.lowes.com/lowes/lkn?actio...5-76863-TL412C
3) Install this breaker into sub panel, and run three 12 AWG wires to 220 v outlet upstairs, two hot, one ground. http://www.lowes.com/lowes/lkn?actio...220&lpage=none
4) Install two of these breakers into sub panel, and run three 12 AWG wires to each of the 110 volt outlets in the garage, one hot, one neutral, and one ground. http://www.lowes.com/lowes/lkn?actio...120&lpage=none
Looking at my main service box, I already have a couple of questions..If I do as described above, this will require I connect two 6AWG wires to the neutral buss within the main service box. I see no provision for this on the neutral buss. How do I connect these wires?
Second, if the sub panel and main panel are connected together with solid conduit, is the ground wire still required? If not, that would eliminate one 6AWG wire, however I want to do this correctly, and be safe, so if it is better to have the additional ground wire, that is what I will do.
Any and all thoughts, ideas and suggestions are greatly appreciated.
Thank you,
Tom
1) Install 50 amp two pole breaker into main service box, something like this http://www.lowes.com/lowes/lkn?actio...250&lpage=none Note, main service panel is GE brand that takes 1/2" breakers.
2) Run 4(ea) 6AWG wires to this sub panel, two hot, one neutral, and one ground. Be certain that ground and neutral are isolated from each other within the sub panel. http://www.lowes.com/lowes/lkn?actio...5-76863-TL412C
3) Install this breaker into sub panel, and run three 12 AWG wires to 220 v outlet upstairs, two hot, one ground. http://www.lowes.com/lowes/lkn?actio...220&lpage=none
4) Install two of these breakers into sub panel, and run three 12 AWG wires to each of the 110 volt outlets in the garage, one hot, one neutral, and one ground. http://www.lowes.com/lowes/lkn?actio...120&lpage=none
Looking at my main service box, I already have a couple of questions..If I do as described above, this will require I connect two 6AWG wires to the neutral buss within the main service box. I see no provision for this on the neutral buss. How do I connect these wires?
Second, if the sub panel and main panel are connected together with solid conduit, is the ground wire still required? If not, that would eliminate one 6AWG wire, however I want to do this correctly, and be safe, so if it is better to have the additional ground wire, that is what I will do.
Any and all thoughts, ideas and suggestions are greatly appreciated.
Thank you,
Tom
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