Honeywell T8631A Owner's Manual - Page 13

OPERATING YOUR THERMOSTAT CHECKING THE CURRENT TEMPERATURE SETTING Press a single key to compare current room temperature to the setting at any time. PRESENT SETTING Press and release. The display will show the current temperature setting for several seconds, then revert to the room temperature. SET PT ON HEAT ACCSING EXTERNAL SYSTE 19 EXTERNAL ACCESS AND CONTROL OF THERMOSTAT The T8631 Communicating Chronotherm III Thermostat can be connected to a Honeywell TotalHome system for external access and control. A TotalHome system allows you to change thermostat settings from the system's user interface panels. depending on the system chosen, you can also use a touchtone phone to adjust your setting. Whenever the thermostat is controlling to TotalHOme system setting, a v appears under the room temperature display. You can easily make temporary temperature setting changes by pushing the WARMER or COOLER key on the T8631. The temporary override setting lasts until the next period starts. To permanently change the temperature set point, push the desired period key, then the WARMER or COOLER key. Use the RUN PROGRAM key to change from external system control to thermostat control of program times and temperatures until a new command is received from the TotalHome system. The T8631 Thermostat can AM SET communicate on an HBus network PT MON over four-wire conductor cables. WAKE This cable connects to the H1, H2, H3 and H4 terminals on the thermostat. HBus is a Honeywell proprietary communications protocol. For assistance, call Consumer Services, 1-800-468-1502, MondayFriday, 7:30 a.m. to 5:00 p.m., Central time. 20