User manual HONEYWELL TH8000

[. . . ] TH8000 Series Programmable Thermostats OWNER'S GUIDE ® U. S. Registered Trademark · Patents Pending © 2004 Honeywell International Inc. All Rights Reserved 69-1701 CONTENTS Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Home Screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Press the Done key to go back to viewing the selected timer. Press Reset key to reset the timer to the timer reload value. (This is the Advanced setting you set or the reload value you selected in step 2. ) Press Done or Cancel key to return to the Home Screen. Screen Locked You can fully or partially lock out the keys on the touch screen interface. See Advanced Settings for information on turning these features on or off. If the thermostat shows "Screen Locked, " your thermostat screen is either fully or partially locked. 26 69-1701 TUE FAN AUTO SCREEN LOCKED Inside Set To SYSTEM HEAT PM Following Schedule SCHED HOLD CLOCK SCREEN MORE M19965 Partially Locked Screen When partially locked, the screen indicates Screen Locked for 5 to 7 seconds whenever the user attempts to press a key that is locked. Pressing a locked key while Screen Locked is shown flashes Screen Locked on the screen. Pressing an unlocked key while Screen Locked is active removes the screen lock. In this mode, all keys are locked except the Temperature Up and Down arrow keys: -- User can change temperature up or down but cannot change schedule settings. -- Temporary temperature change lasts until next scheduled period and that time shows on screen. -- To cancel temperature override and begin following schedule, press Cancel key. -- To unlock screen, see Advanced Settings section. 27 69-1701 Fully Locked Screen In this mode, all keys are locked and not functional. To unlock screen, see Advanced Settings section. The screen continuously displays "Screen Locked. " Reading Your Inside Humidity Level (Select Models) Select models can sense the humidity level in the home. If your model has this feature, the humidity level in the home is shown in the lower right corner of the Home Screen. NOTE: If the thermostat has the optional outdoor temperature sensor (select models), the indoor humidity level is displayed by pressing the More key. TUE FAN AUTO Inside Set To SYSTEM HEAT PM Following Schedule Humidity SCHED HOLD CLOCK SCREEN MORE M19966 28 69-1701 Controlling Your Inside Dehumidification Setting (Select Models) Select models read the inside humidity level and set a desired humidity level to help control dehumidification in the home: 1. Press the More key until the inside humidity percent and dehumidification setpoint are shown. Inside Humidity DEHUMIDIFIER DONE CANCEL M19967 2. 4. Use Up and Down arrow keys, located to the right of the dehumidifier setpoint, to set your desired humidity level (select models) for dehumidification in the summer. Press Done key to save your changes and return to the Home Screen. Press Cancel key to return to Home Screen without saving any changes. 29 69-1701 Dehumidification Control (Select Models) If your thermostat has dehumidification control and you set a dehumidification setpoint, the thermostat attempts to control to this dehumidification setpoint by turning on the air conditioner. In extremely high humidity conditions, thermostat keeps the air conditioner running for up to 3°F below your temperature setpoint. It does this when trying to achieve your desired humidity setpoint and balance that with your temperature setpoint. Temperature Recovery Your thermostat comes with a feature called Adaptive Intelligent RecoveryTM, which eliminates all guesswork when setting your schedule. How long does it take the furnace to warm your house in the morning before you get out of bed or how long does it take the air conditioner to cool your house in the afternoon before you return from work? [. . . ] Q: Backlighting seems dim; is it designed to be dim?A: In models that use batteries for power, install fresh AAA alkaline batteries. Q: Thermostat is asking for heating or cooling to come on (screen shows "Heat On" or "Cool On" in display) but there is no heating or cooling running. A: Call your local heating and/or cooling contractor to check your heating and/or cooling system. [. . . ]