Honeywell TH8000

20 69-1701

1. Remove thermostat from the base by pulling straight out.

2. Install three new AAA alkaline batteries so all positive ends alternate up, down, up.

NOTE: Always use AAA alkaline batteries.

WALL

M19919

REMOVE DURING

INSTALLATION

Contents

Main CONTENTS FEATURES Home Screen Key Description In SETS THE TIME FORWARD OR BACK o S Home Screen Display Description FAN U S T Programming Your Heating and Cooling Schedule Editing Schedule Page Page Cancelling a Schedule Period Page Setting Time Operating Your Thermostat Setting Fan and System Keys Setting Temperature Overrides Page Page Page Page Manual Override of Fan Schedule Replacing Your Batteries Page Page Cleaning Your Thermostat Screen Reading Your Outdoor Temperature (Select Models) M19971 o Se On Reading Your Remote Indoor Temperature (Select Models) Reminder Timers (Select Models) M19975 o Se Resetting Expired Timers Page Partially Locked Screen Fully Locked Screen Reading Your Inside Humidity Level (Select Models) Controlling Your Inside Dehumidification Setting (Select Models) Dehumidification Control (Select Models) Temperature Recovery Page Page CHANGE FILTER UV LAMP HUMIDIFIER PAD OK TO PICK MULTIPLE DAYS SCREEN LOCKED SET CURRENT DAY SET MONTH USE ARROWS TO SET YEAR AND TIME M19921 R U Advanced Settings M19969 o s In Page Step 1. User Setup Number 0120: First Two Digits of Current Calendar Year. Step 2. User Setup Number 0130: Last Two Digits of Current Calendar Year. Step 3. User Setup Number 0140: Current Calendar Month. Step 4. User Setup Number 0150: Current Calendar Date. Step 5. User Setup Number 0160: Schedule Options. Step 6. User Setup Number 0320: Display Temperature Shown in F or C. Step 7. User Setup Number 0330: Daylight Savings On or Off. Step 8. User Setup Number 0500: Furnace Air Filter Timer. Step 9. User Setup Number 0510: Humidifier Pad Timer. Step 10. User Setup Number 0520: UV Lamp Timer. Page Page Frequently Asked Questions and Answers Limited Five-Year Warranty CUSTOMER ASSISTANCE