Honeywell RTH8500D Owner's Manual - Page 3

Step 1. Prepare for Installation 1. Check that the following items are included: Inside Set OWNER'S GUIDE Inside Set To Read and save these instructions WALLPLATE THERMOSTAT MOUNTING SCREWS (2) AND WALL ANCHORS (2) OWNER'S GUIDE WIRE LABELS CAUTION CARD CAUTION TURN OFF POWER to system at the furnace, or at the fuse/circuit breaker panel before you begin. Match the letter of your old thermostat wire with the terminal of the corresponding letter on your new thermostat or base. N de la letra correspondiente de B B Y2 Y2 C CE EF F G GH HL LO OP P R R RC RC RH RH T TU U V/VR V/VR W W W1 W1 W2 W2 W3 W3 X X X1 X2 Y Y1 69-0823EFS 5-03 • yourhome M22200 If any of the items shown above are missing, call Honeywell Customer Care at 1-800-468-1502 before returning the thermostat to the store. 3 69-1725-1