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OPERATION GUIDE
1F92W-71
Multi-stage/Heat Pump Electronic
Digital Thermostat
WHITE-RODGERS
Operator: Save this booklet for future use!
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About Your New Thermostat . . . Your new White-Rodgers Digital Multi-stage/Heat Pump Thermostat uses the technology of a solid-state microcomputer to provide precise time/temperature control. This thermostat offers you the flexibility to design heating and cooling programs that fit your needs. Please read this manual thoroughly before operating or programming your thermostat. If you have questions, contact us at the address shown on the back cover of this manual. 2
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In This Guide . . . YOUR NEW THERMOSTAT'S PROGRAMMING YOUR FEATURES ........................................... 4 THERMOSTAT ................................... 18 OPERATING YOUR THERMOSTAT ........ 5 PLANNING FOR YOUR NEEDS PARTS OF THE THERMOSTAT ENTERING YOUR PROGRAM The Back Of the Thermostat Body Set Current Time and Day The Display Enter Heating Program The Thermostat Buttons Enter Cooling Program OPERATING FEATURES CHECK YOUR PROGRAMMING QUESTIONS AND ANSWERS ............... 29 Operator:
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YOUR NEW THERMOSTAT’S FEATURES • Five-day/two-day programming capability • Backlit LCD displays continuous setpoint, time, and room temperature • Simultaneous heat and cool program storage • Adjustable cycle times ® • Four separate time and temperature set- • 9 volt Energizer alkaline battery backup tings per 24-hour period • Compressor long term cycle protection • Up to 3 stages of heat and up to 2 stages • Compressor short cycle protection of cool • Blower delay in the cooling cycle • Computed
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OPERATING YOUR THERMOSTAT Before you begin programming your new ther- The subbase is attached to the wall, but you mostat, you should be familiar with its features can remove the thermostat body for easy pro- and with the display and the location and gramming. To remove the thermostat body operation of the thermostat buttons. The infor- from the subbase, grasp the thermostat body mation in this section will help you become and gently pull it out from the bottom of the familiar with your thermost
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factory preprogrammed heating tempera- PARTS OF THE THERMOSTAT ture of 64°F and a cooling temperature of 82°F after power is restored. You must The Back of the Thermostat Body reprogram the thermostat if this happens. Turn the thermostat body over. On the back If the word BAT is flashing in the display ® are the 9 volt Energizer alkaline battery and window, the battery is low and should be the option switches. ® replaced with a fresh 9 volt Energizer ® 1. The 9 volt Energizer alkaline battery pr
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4-pin connector Battery CAUTION ! SYSTEM Press to turn thermostat OFF HEAT-OFF-COOL-AUTO before removing thermostat from the wall to replace the battery. 2. You may adjust option switch #4 for auto- matic changeover from heating to cooling (see OPERATING FEATURES). W18 Option switches 9-pin connector BACK OF THERMOSTAT BODY 7
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Other than and , the buttons are Displays the setpoint temperature. 3 located behind the thermostat door. To open 5 DAY indicates that the displayed pro- the door, use your fingernail in the indentation 4 at the top center of the door. Pull the door out, gram is the weekday program. 2 DAY then swing the door down on its hinges. indicates that the displayed program is the weekend program. Following are brief descriptions of the display and the thermostat buttons. The word BAT flashes on the dis
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EMER. PUMP 5 DAY FAN MALF. AUX. TIME SET VIEW HOLD SYSTEM HEAT-OFF-COOL-AUTO FWD CLOCK PRGM TEMP TIME SET RUN ADV FAN ON - AUTO BACK DAY PRGM PRGM 1 2 3 3 2 DAY FAN 5 DAY BAT FAN 4 6 4 5 6 2 9
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The Thermostat Buttons and Lights anticipation setting mode. Sets the system mode (HEATing, Used to initiate or review thermostat pro- 7 12 EMERgency backup, OFF, COOLing, or gramming. AUTOmatic changeover [user selectable Used to start program operation after pro- 13 feature]). gramming. Also used to return thermostat Selects fan operation (see #6, above). 8 to program operation after being in HOLD This button is also used to program the fan mode. to run continuously during a program pe- Used t
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heat pump system malfunction (refer to (Red arrow) Raises temperature setting 17 heat pump manufacturer's operating (99°F or 37°C maximum) manual). A continuous (non-flashing) EMER light indicates that the system is in 18 PUMP light indicates that the heat pump compressor is functioning — a flashing the emergency mode (the heat pump com- PUMP light indicates that the compressor pressor is off and the auxiliary system is is locked out. AUX light indicates that the maintaining setpoint temperatur
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period, beginning at 6:00 AM, you have OPERATING FEATURES programmed a temperature of 70°F. The Now that you are familiar with the thermostat thermostat will automatically activate the display and buttons, read the following infor- heating system at about 5:00 AM, so that mation to learn about the many features of the the programmed 70°F temperature is thermostat. reached by about 6:00 AM. • COMPUTED ENERGY MANAGEMENT • AUTOMATIC CHANGEOVER — You can RECOVERY (EMR) - The thermostat's set the the
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(down), use a pencil or small screwdriver Automatic Changeover (ON) to move the switch to the ON position (see ON figure at right). Leave the battery out of the thermostat for at least two minutes, to 1234 allow the thermostat to reset itself. DO NOT MOVE ANY OTHER OPTION Switch #1 set at installation (DO NOT CHANGE) Switch #2 set at installation (DO NOT CHANGE) SWITCH, as it may affect thermostat op- Switch #3 set at installation (DO NOT CHANGE) eration. Replace the battery, reprogram Switch #4
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conservation when the building is unoccu- • TWO HOUR TEMPERATURE OVER- pied for an extended period of time. RIDE — Press or until the display shows the temperature you want. TIME • °F/°C CONVERTIBILITY — Press FWD The thermostat will override current pro- TIME gramming and keep the room temperature and at the same time until the tem- BACK at the selected temperature for two hours. perature display is in °C (Celsius). To After two hours, the thermostat will auto- display °F, repeat the proces
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SET show COOL 14 (factory preprogrammed To adjust HEAT anticipation, press CLOCK TIME cooling anticipation). Use the and FWD SET and at the same time. The display DAY TIME buttons to adjust anticipation. To set will show HEAT 18. You may select any BACK anticipation setting from 4 to 40 (note that AUXILIARY heat anticipation (not appli- for add-on heat pump systems, a mini- SET cable to multi-stage use), press and CLOCK mum anticipation of 10 is recom- SET mended). When you adjust anticipat
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• AUDIO PROMPTING — Each time you SYSTEM b) Pressing to change operating HEAT-OFF-COOL-AUTO press a button, the thermostat will beep. modes. • BACKLIT DISPLAY — When you press c) Pressing or to create a call any button on the thermostat, the display for COOL or HEAT too soon after a is lit for approximately eight seconds (this previous call. feature works only when the thermostat is attached to the wall and 24 VAC power is During lockout in the HEAT mode, the present to the thermostat). green
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due to crankcase oil temperature change. • SYSTEM INDICATOR LIGHTS — The This thermostat has a built-in time delay of four lights on the upper right part of the one hour less than the power loss (up to 12 thermostat indicate system operation (see hours). When power is restored to the PARTS OF THE THERMOSTAT for spe- system, heaters in the system will begin to cific descriptions of what each light indi- heat the crankcase oils. The thermostat's cates). time delay will lock out the compressor to •
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PROGRAMMING PROGRAMMING YOUR THERMOSTAT Now you are ready to program your thermo- PLANNING FOR YOUR NEEDS stat. This section will help you plan and pro- This thermostat will store separate heating gram your thermostat to meet your needs. and cooling programs for five-day (weekday) For maximum comfort and efficiency, keep the and two-day (weekend) operation. Usually, following guidelines in mind when planning the five-day program is set to run Monday your program. through Friday, and the two-day
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the thermostat in your home, answer ques- 3a. What time do the building occupants reach tions 5 through 8. Keep in mind that you should a minimum activity level (limited personnel plan for both weekday and weekend programs. in building)? These will be your EVE (evening) temperature settings. FOR COMMERCIAL APPLICATIONS: b. What temperature should the building be 1a. What time does the first person arrive at at this time? the building in the morning? 4a. What time does the building become b. What
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6a. What time does the last person leave the b. What temperature should the house be at house in the morning? this time? These will be your NHT (night) temperature settings. b. What temperature should the house be at this time? These will be your DAY tem- Now look at the factory preprogrammed times perature settings. and temperatures shown below. If this pro- RUN 7a. What time does the first person arrive gram will suit your needs, simply press to PRGM home in the evening? begin running the fac
