HONEYWELL HOME APP - Examples include the T6/T6R/T6R-HW thermostats, C1/C2 Wi-Fi Security Camera, W1 Wi-Fi Water Leak and Freeze Detector; Total Connect Comfort - TCC - Examples include the evohome Wi-Fi thermostat, evohome + RFG100 Gateway, Single Zone Thermostat + RFG100 Gateway. HONEYWELL HOME APP. New thermostat installation. In that case, you'll just have to set the temperature, and then press the key under "Hold" to activate the "Temporary Hold" feature. Again, depending on what model Honeywell thermostat you're using, the steps you should take may vary. For example, the latest programmable thermostat Honeywell, the Honeywell ZStat Z-Wave Thermostat.