Honeywell RTH8500 用户手册

®

 Technology: This feature allows the thermostat to “learn” how long the 

furnace and air conditioner take to reach programmed temperature settings, so the tem-
perature is reached at the time you set. For example: Set the Wake time to 6 am, and the 
temperature to 70°. The heat will come on before 6 am, so the temperature is 70° by the 
time you wake at 6. The message “Recovery” is displayed when the system is activated 
before a scheduled time period.
Compressor Protection: This feature forces the compressor to wait a few minutes before 
restarting, to prevent equipment damage. During the wait time, the message “Wait” is dis-
played on screen.
Auto Changeover: This feature is used in climates where both air conditioning and heat-
ing are used on the same day. When the system is set to Auto, the thermostat automati-
cally selects heating or cooling depending on the indoor temperature. Heat and cool set-
tings must be at least 3 degrees apart. The thermostat will automatically adjust settings to 
maintain this 3-degree separation.

CAUTION: To avoid possible compressor damage, do not use Auto Changeover if the outside 
temperature drops below 50°F (10°C).