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-   -   Replacing Wiring From Outside Fuse Box To Central Ac Compressor (http://www.diychatroom.com/f18/replacing-wiring-outside-fuse-box-central-ac-compressor-6781/)

bobo 02-28-2007 03:09 PM

Replacing Wiring From Outside Fuse Box To Central Ac Compressor
 
hello,

i need to replace the wiring from the outside fuse box to the central ac compressor. the old wiring is like a bx type housing with two 10awg wires running through it to the compressor. the vinal coating is all cracked and the metal sheething is showing and rusted in a few spots. i called home depot and lowes to see if they had the 10awg wire.. they only have 10awg stranded wire. the old wire is solid copper, and insulated. can i use the stranded insulated wire? the lenth of the wire is only about 5ft. i also am going to buy the flexable vinal type sheething to run the wires through. the old hookup had no ground wire from the fuse box to the compressor, must have used the metal sheething as a ground. im going to run a ground from the fuse box ground bar to a ground lug on the compressor. does this sound correct?

bob

jwhite 02-28-2007 04:52 PM

I dont like the all plastic (carflex) outdoor raceway (Liquidtight Flexable Non metaic Conduit). But you could use that or, and I prefer to use the metal lined raceway with a vinal outer cover Sealtite (liquidtight Flexable Metalic Conduit).

The stranded wire will be fine, and I would use the ground wire as you suggest also.

jbfan 03-01-2007 06:44 AM

HD and lowes carry AC whips with the wire and both ends attached. Not sure of the price, but really simple to use.

bobo 03-01-2007 03:05 PM

jbfan,

"ac whips"? u mean the 3 10awg wires and fittings are all one unit/piece? i just mount the connectors to the fuse box and compressor and hook up the wires?
bob

mikemy6 03-01-2007 04:52 PM

BoBo, My whips come as 3 footers you said you may need 5' ddoouubbllee check wit HD before going without a list.

mikemy6 03-01-2007 05:10 PM

1 other thing you might want to take an amp reading while youve got access. This sounds like an older unit.

bobo 03-01-2007 07:17 PM

mikemy6,

its a trane unit, and the tag on the ac unit in the house has an installation date of 1980, so it is pretty old. i dont know if the compressor outside that i need to rewire is original or not tho. the solid copper wires that connect the fuse box to the compressor are 10awg, and the fuses are 30 amp. i still dont know waht an "ac whip" is! please explain....bob

jbfan 03-02-2007 06:30 AM

Quote:

Originally Posted by bobo (Post 35233)
jbfan,

"ac whips"? u mean the 3 10awg wires and fittings are all one unit/piece? i just mount the connectors to the fuse box and compressor and hook up the wires?
bob

Thats the one I'm talking about. Not sure of the length.

bobo 03-02-2007 09:23 PM

hi people,

went to HD today and bought the 3 10awg wires i needed, black, red, and green. bought a rubber/vinal 1/2" id sheething, pretty tough stuff, has cord that is sewed through it, got connectors with rubber seals, looks great, and even works...thanks for your input.

bob


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