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1F81-51
Programmable Electronic
WHITE-RODGERS
Digital Multi-stage Thermostat
INSTALLATION AND
OPERATION INSTRUCTIONS
Operator: Save these instructions for future use!
FAILURE TO READ AND FOLLOW ALL INSTRUCTIONS CAREFULLY
BEFORE INSTALLING OR OPERATING THIS CONTROL COULD CAUSE
PERSONAL INJURY AND/OR PROPERTY DAMAGE.
DESCRIPTION
Your new White-Rodgers 5-Day/2-Day Digital Multi-stage Ther- • Preprogrammed temperature control
mostat uses the technology of a solid-state microcomputer to
• LCD continu
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C W2 G W Y2 R Y INSTALLATION REMOVE OLD THERMOSTAT 1. Shut off electricity at the main fuse box until installation is complete. Ensure that electrical power is disconnected. 2. Remove the front cover of the old thermostat. With wires W901 still attached, remove wall plate from the wall. If the old CUT FOR LONGER CYCLES thermostat has a wall mounting plate, remove the thermostat and the wall mounting plate as an assembly. 3. Identify each wire attached to the old thermostat using the W903 labels
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NOTE NOTE The following wiring diagrams show typical terminal identifica- Relay contacts shown are thermostatically operated. tion and wiring. For proper installation, refer to the original manufacturer's instructions. * The 24 Volt neutral connection to terminal C on the thermostat is not required if you replace Thermostat the batteries once a year with Control ® fresh “AA” Energizer alkaline Circuit batteries. THERMOSTAT Y Y2 G W W2 C* R SYSTEM Heat Compressor Relay Contactor Stage 1 Sta
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If the fan is running but the compressor is not running and the CHECK THERMOSTAT OPERATION word COOL is flashing, the compressor lockout feature is NOTE operating (see Lockout Bypass Option to temporarily override the compressor lockout feature during testing). If at any time during testing, your system does not operate 3. Press to adjust temperature setting above room tempera- properly, contact a qualified serviceperson. ture. The cooling system should stop operating. Fan Operation NOTE 1. Tur
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OPERATION Before you begin programming your thermostat, you should be familiar with its features and with the display and the location and operation of the thermostat buttons. Your thermostat consists of two parts: the thermostat cover and the base. To remove the 1 2 cover, gently pull it straight out from the base. To replace the cover, line up the cover with the base and press gently until the cover snaps onto the base. THE THERMOSTAT BASE SET TIME VIEW PRGM RUN PRGM HOLD TEMP FAN ON AUTO SYST
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Look at the factory preprogrammed times and temperatures 3. Press SET TIME once. The display window will show the shown below. If this program will suit your needs, simply press the minutes only. RUN PRGM button to begin running the factory preset program. EXAMPLE: FACTORY PREPROGRAMMING Cooling Program for Heating Program for ALL Days of the Week: ALL days of the Week: PERIOD TIME TEMP PERIOD TIME TEMP 4. Press and hold either or until you reach the correct 1st 6:00 AM 70°F 1st 6:00 AM 78°F
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7. Repeat steps 4 and 5 to select the start time and heating CHECK YOUR PROGRAMMING temperature for the 2nd heating program period. Follow these steps to check your thermostat programming one 8. Repeat steps 4 through 6 for the 3rd and 4th heating program final time before beginning thermostat operation. periods. Weekday heating programs are now complete. 1. Move SYSTEM switch to HEAT position. 9. Press VIEW PRGM once. “SA SU” (indicating weekend 2. Press VIEW PRGM to view the 1st weekday heatin
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