We have the a/c on here now - I just have to keep the guys from setting it at 64*, the boneheads! All that does is keep the compressor running until it freezes up. Sheesh.... The service mgr & I keep pushing it back up to 74 - 76*. At home, I have it set around 84* - 86* when I'm at work, that way it will usually come on in the late afternoon, not too long before I get home & the place won't be broiling hot. Then sometimes I'll put it down to 80* until the sun goes down. That way the house is comfortable for me, but my bill is not too big.