Remotec Thermostat ZTS-100 Z-Wave Programmable Thermostat HVAC System Type Compatible: Standard (gas/electric) or Heat Pump; 2H/1C for Non-heat pump system, Millivolt, Single stage & 2 stages heat pump system Multistage System Compatible: Standard HVAC Systems: 2 stage heating, 1 stage cooling; Heat Pump Systems: 2 stage heating, 1 stage cooling Heat Pump change over valve: Selectable change over with cool or with heat Program Style: 2 program modes (Mo-Fr, Sa-Su); 4 Separate Time, Temperature Settings for each program; Heat and Cool set-points for each program Supports Network Wide Inclusion (NWI) and Z-Wave security command class