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1F81-71
Programmable Electronic
WHITE-RODGERS
Digital Automatic Changeover 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- • Optional B and O terminals
mostat uses the technology of a solid-state microcomputer to
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C W W2 O B R G Y Y2 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 still attached, remove wall plate from the wall. If the old thermostat has a wall mounting plate, remove the thermostat and the wall mounting plate as an assembly. W903 3. Identify each wire attached to the old thermostat using the CUT TO DEFEAT EMR labels enclo
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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 Thermostat is not required if you replace the batteries once a year with Control ® fresh “AA” Energizer alkaline Circuit batteries. THERMOSTAT B O Y Y2 G W W2 C* R SYSTEM Heat Compressor Energized Relay Contact
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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 1. Turn on
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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 SYSTEM FAN ON AU
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• TEMPERATURE DISPLAY ADJUSTMENT — Your new Use the table at the bottom of the page to plan your program time thermostat has been accurately set in our factory. However, periods, and the temperatures you want during each period. You if you wish, you may adjust your new thermostat tempera- may also want to look at the sample program table to get an idea ture display to match your old thermostat. This can be of how the thermostat can be programmed. accomplished (within a ±4°F range) as follows: 1.
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MO TU WE TH FR CHECK YOUR PROGRAMMING EXAMPLE: Follow these steps to check your thermostat programming one final time before beginning thermostat operation. This display window shows that for the 1st weekday period, 1. Press SYSTEM button until HEAT is displayed. the start time is 6:00 AM, and 70° is the programmed 2. Press VIEW PRGM to view the 1st weekday heating period temperature (this example reflects factory preprogramming). time and temperature. Each time you press VIEW PRGM, the next he
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