3 phase power there for central air conding it was common during late 60 to early 70's but now days it is history now because hard to deal with 4 wire delta service only few place in major citys still have that for resdentail service
Theres a few houses in my town that have 4 wire delta service. Houses with central air that date back to the 60's. Must have been an expensive premium for new houses back then.
Just imagine if I owned such a house: I could connect the dryer between the "wild" leg of the delta and one of the 120V lines. But being careful to connect the dryer so its 120V motor sees 120V and not 208V! Probably not code though.
[This message has been edited by wa2ise (edited 12-20-2004).]
