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These are pics of the inlet plug, the back of the plug and the wires coming out of the house.
Here are the numbers I got starting with the wires inside of the inlet box:
WHITE + GROUND = 00.1
WHITE + Y = 04.2
WHITE + X = 14.2
X + Y = 18.8
GROUND + Y = 2.5
GROUND + X = 14.4
Some of the numbers jumped high but then settled down to what I recorded.
These are the numbers from the inlet box prongs:
NEUTRAL TO RT PRONG = 14.4
NEUTRAL TO LEFT PRONG = 2.0
Also checked continuity on adapter:
NEUTRAL + GROUND = OL
GROUND TO 1 HOT = 14.5
GROUND TO OTHER HOT = 2.2
NEUTRAL TO EACH HOT SEPARATELY = OL
The only reading that was below 1 was the GROUND TO WHITE inside inlet box.
a true what the heck moment on what the electrical guy did...
proper colors to this location of the inlet should to have been
L1 to Y as black
L2 to X as red
neutral to W as white
ground to ground symbol as green or bare
you could id the blacks and place red tape on one of them at both ends for the L2.
to id the black wire for the red tape;
first turn off the main breaker for safety
if you can operate a volt meter you could use a fresh 9 volt dc battery with clip leads
disconnect the generator inlet black wires at the breaker panel
place the + 9 volt on one of the blacks for the gen inlet at the breaker panel
and the battery - to the bare copper ground
next go outside with your red tape and meter
set the meter to dc volts and if it is not auto range style of meter set to 20 volts dc scale.
check the black wires one at a time till you get the 9 volts dc.
mark that wire with the red tape as a band or wrap around the wire.
check to make sure no other voltage on any of the other wires.
go back inside and mark that wire with the red tape as well.
this will be your L2 connection for the X on the inlet.
next check the other black wire as the same to verify that is the right wire for L1
and connect that to the Y on the inlet
no tape on that wire.
verify the white neutrals next the same way... not sure why they ran 2 of them.
you can connect both of them to the neutral buss bar in the breaker panel after you verify them.
and out side you will wire nut them together with a single 6 gauge white jumper wire to connect to the W term
on the inside wires L1 black to one leg of the duplex breaker for the interlock
and L2 red tape wire to the other leg on the duplex breaker for the interlock
triple check your work check all screw connections before you button up the out side as well as the inside panel covers
the cut in the main on the breaker panel.
step off to the side with one hand, and always turn your head from the panel (that safety thing).
then verify with the battery and meter the cord to make sure it is wired right as well.