Greg, I haven't had a chance to look at the manual. It was raining the day I got on the roof, and the job is about an hour away, but it did have an "off" marked at the switch. It's just a turn switch, (no knife blade style), so I'm sure it's operating a contactor inside the unit. I'm would guess that the manual would say it could be used as a disconnect, since there is no real feasible place on the unit to mount a disconnect. All the doors at the electrical access are removable, and it looks like the electrical is meant to come up from the roof inside the unit. Thanks again. I got to get this bid in today, so I'm hoping I got it all straight:)
