I just got a heat pump installed and the installer guy just left it running and set the pool pump to run continuosly. I wasnt home at the time. Its a Hayward 140k btu hp2140t pump if that matters. Is it ok just to set the pool pump to run from 10am - 6pm and does the heat pump just shut off automatically when there is no water flowing into it? I didnt see any way to set the heat pump to run for specified hours. Your help is appreciated. Thanks!