Hi Guys I've got a TC-515 temp controller that I'm trying to setup, I've managed to download a manual but doesn't quite match up, think mine might be a bit older? Its got 2 relay output, 1 for "control" and 1 for "alarm" Its got so many settings you need a pilots licence to opperate. What I want is get it to turn chiller on at say 25.7 and heater on at 25.3. I've got the chiller function working, just by setting the "set" temp to to 25.5 with a hysteresis to 0.2. But what "mode" on the alarm side do select to get it to work the heater?