Showroom mode will be engaged. DISPLAY PANEL OPERATION Keyboard Entry Tone Indicates a pad was pressed, command read and accept. Zone Pad 1. Toggle between zones for set point temperature adjustment. Pressing immediately toggles from Top to mid to bottom, respectively that order. Entry tone will sound at each depression of pad. 2. Used in conjunction with “Higher Temp” and “Lights” pads to enter service mode. Press “Zone”, “Higher Temp” and “Lights” simultaneously for 5 seconds to activate servi