Related Manuals for White Rodgers 1F92W-51
Summary of Contents for White Rodgers 1F92W-51
- Page 1 INSTALLATION & 1F92W-51 OPERATION GUIDE Multi-stage/Heat Pump Electronic Digital Thermostat WHITE-RODGERS Operator: Save this booklet for future use!
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Page 2: About Your New Thermostat
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. - Page 3 YOUR NEW THERMOSTAT’S FEATURES ... 4 PRECAUTIONS ... 5 THE THERMOSTAT’S SPECIFICATIONS ... 6 INSTALLING YOUR THERMOSTAT ... 7 NEW INSTALLATION Select Thermostat Location Route Wires to Location REPLACEMENT INSTALLATION Remove Old Thermostat Attach Subbase to Wall SYSTEM CONFIGURATON Set Option Switches CHECK THERMOSTAT OPERATION Fan Operation Heating System Operation...
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Page 4: Your New Thermostat's Features
YOUR NEW THERMOSTAT’S FEATURES • Five-day/two-day programming capability • Simultaneous heat and cool program storage • Four separate time and temperature settings per 24-hour period • Up to 2 stages of heat and up to 1 stage of cool • Computed Energy Management Recovery (EMR) •... - Page 5 If in doubt about whether your wiring is millivolt, line, or low voltage, have it inspected by a qualified heating and air conditioning contractor, electrician, or someone familiar with basic electricity and wiring. Do not exceed the specification ratings. All wiring must conform to local and national electri- cal codes and ordinances.
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Page 6: Electrical Data
THE THERMOSTAT’S SPECIFICATIONS THIS CONTROL IS DESIGNED FOR USE WHERE BOTH SIDES OF THE TRANSFORMER ARE PRESENT AT THE THERMOSTAT (both the hot and common sides of the 24 VAC end of the transformer.) ELECTRICAL DATA Electrical Rating: 20 to 30 VAC 50/60 Hz. 0.01 to 1.5 Amps (Load per terminal) 2.5 Amps Maximum Total Load (All terminals combined) -
Page 7: New Installation
INSTALLING YOUR THERMOSTAT NEW INSTALLATION WE RECOMMEND THAT YOU PROGRAM THE THERMOSTAT WITH BATTERY INSTALLED BE- FORE ATTACHING ON SUBBASE. SEE OPERA- TION SECTION FOR PROGRAMMING INSTRUC- TIONS. SELECT THERMOSTAT LOCATION Proper location insures that the thermostat will provide a comfortable building temperature. Ob- serve the following general rules when selecting a location: 1. - Page 8 1. Probe for obstructions in partition before drilling ⁄ ” hole in wall at selected location. Take up quarter round and drill a small guide hole for sighting (see fig. 1). From basement, drill in partition floor next to guide hole. In buildings without basements, drill ⁄...
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Page 9: Replacement Installation
REPLACEMENT INSTALLATION REMOVE OLD THERMOSTAT 1. Shut off electricity at the main fuse box until installation is complete. Verify power is off with a voltmeter. 2. Remove the front cover of the old thermo- stat. With wires still attached, remove wall plate from the wall. - Page 10 NEW THERMOSTAT LABEL TERMINAL NUMBER DESIGNATION (10) (11) (12) (13) TABLE 2. TERMINAL REFERENCE FUNCTION Fan Output Transformer 24 VAC Common (this terminal not used) Transformer 24 VAC Hot Changeover Output (Cooling) Changeover Output (Heating) Emergency Heat Relay (cycles on 1st stage in Emergency Mode) Emergency Heat Relay (continually energized in Emergency Mode)
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Page 11: Attach Subbase To Wall
ATTACH SUBBASE TO WALL 1. Remove the packing material from the thermo- stat. Place the fingers of one hand on the center top and bottom portion of the thermostat. Grasp the subbase in the other hand on the top and bottom center, and gently pull straight out (see fig. - Page 12 WARNING DO NOT EXCEED MAXIMUM VOLTAGE OR CURRENT RATINGS. FIRE, PERSONAL IN- JURY, AND/OR EQUIPMENT DAMAGE COULD RESULT. Mounting S1 S2 S3 hole 9-pin connector Pull wires through this opening Figure 3. Subbase To prevent electrical shock and/or equip- ment damage, disconnect electrical power at the main fuse box until installation is complete.
- Page 13 NOTE The following wiring diagrams show typical terminal iden- tification and wiring. For proper installation, refer to the original manufacturers' instructions. Thermostat Control Circuit THERMOSTAT SYSTEM Emergency Changeover Heat Relay Energized Relay Relay Switched In Heat Stage 2 Output 24 VAC 120 VAC Emergency Heat...
- Page 14 NOTE IF SAFETY CIRCUITS ARE IN ONLY ONE OF THE SYSTEMS, REMOVE THE TRANSFORMER OF THE SYSTEM WITH NO SAFETY CIRCUITS. CUT AND TAPE OFF! 120 VAC 24 VAC Changeover Neutral Energized TRANSFORMER Figure 5. Typical wiring diagram for two transformer systems with NO safety circuits Emergency Changeover Relay...
- Page 15 NOTE Relay contacts shown are thermostatically operated. The accessory relay scheme is required when safety circuits exist in both systems. Changeover Energized Relay In Heat Changeover Compressor Energized Contactor In Cool Stage 1 HEAT PUMP SYSTEM TWO COMMONS MUST BE JUMPERED TOGETHER! Figure 6.
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Page 16: Attach Thermostat To Subbase
ATTACH THERMOSTAT TO SUBBASE WE RECOMMEND THAT YOU SET OPTION SWITCHES TO DESIRED POSITION BEFORE AT- TACHING ON SUBBASE (see OPERATION). WE ALSO RECOMMEND THAT YOU PROGRAM THE THERMOSTAT WITH BATTERY INSTALLED BE- FORE ATTACHING ON SUBBASE (see OPERA- TION section for programming instructions). SYSTEM TO TURN THERMOSTAT OFF BE- HEAT-OFF-COOL-AUTO... -
Page 17: System Configuration
SYSTEM CONFIGURATION NOTE ANY TIME AN OPTION SWITCH IS CHANGED, ® THE 9 VOLT ENERGIZER BATTERY MUST BE REMOVED FOR A MINIMUM OF 2 MINUTES. 4-pin connector Option switches Figure 8. Back of thermostat 1. Single Stage Compressor Heat Pump — with reversing valve energized through B or O termi- nals Battery... - Page 18 3. Multi-stage (Fossil Fuel) System — up to 2 heat stages and 1 cool stage Switch #1 Switch #2 Switch #3 Switch #4 (see step 6) 4. Multi-stage (Electric Heat) System — up to 2 heat stages and 1 cool stage Switch #1 Switch #2 Switch #3 (see step 5)
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Page 19: Check Thermostat Operation
CHECK THERMOSTAT OPERATION When checking thermostat, option switch #4 for automatic changeover must be in the OFF position. This will allow temporary setting of heat set points above cool settings. After system checkout, reset option switch to ON position if automatic changeover is desired (see SET OPTION SWITCHES). -
Page 20: Cooling System Operation
COOLING SYSTEM OPERATION CAUTION To prevent compressor and/or property damage, if power to the compressor has been off or interrupted for more than 1 hour and the outdoor temperature is be- low 50 F, DO NOT operate the system for at least the amount of time the compres- sor was off! This will allow the compres- sor heaters to warm the compressor oils... - Page 21 LOCKOUT BYPASS OPTION CAUTION FOR QUALIFIED SERVICE TECHNICIANS’ USE ONLY. OPERATORS SHOULD NOT USE THIS FEATURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE, OR PERSONAL INJURY. DO NOT USE THE LOCKOUT BYPASS OP- TION UNLESS THE COMPRESSOR OIL HEATERS HAVE BEEN OPERATIONAL FOR 6 HOURS AND THE SYSTEM HAS NOT BEEN OPERATIONAL FOR AT LEAST 5 MINUTES.
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Page 22: Operating Your Thermostat
OPERATING YOUR THERMOSTAT Before you begin programming your new thermo- stat, you should be familiar with its features and with the display and the location and operation of the thermostat buttons. The information in this section will help you become familiar with your thermostat so that you can easily program it. -
Page 23: Parts Of The Thermostat
nine pin connectors on the lower portion of the thermostat back. Gently push until the snap connec- tors engage (see fig. 10). DO NOT FORCE OR PRY THE THERMOSTAT, as this may damage the unit. ENGAGE TWO UPPER GUIDES; PIVOT DOWN Figure 10. - Page 24 battery will provide power for all functions. If the word BAT is displayed continuously (non-flash- ing), the thermostat is not being supplied with 24 VAC power and is being powered by the battery alone. CAUTION SYSTEM to turn thermostat OFF before HEAT-OFF-COOL-AUTO removing thermostat from the wall to re- place the battery.
- Page 25 replaced. The word BAT will be displayed con- tinuously (non-flashing) when the thermostat is operating on battery power only. 5 DAY TIME SYSTEM HEAT-OFF-COOL-AUTO TIME BACK - AUTO 2 DAY 5 DAY ing continuously, regardless of heating or cool- ing system cycling. FAN automatic fan operation (when the blower cycles with the heating or cooling system).
- Page 26 The Thermostat Buttons and Lights Sets the system mode (HEATing, EMERgency backup, OFF, COOLing, or AUTOmatic changeover [user selectable feature]). Selects fan operation (see #6, previous page). This button is also used to program the fan to run continuously during a program period. Runs display forward or backward through time, day, or anticipation settings during program- ming.
- Page 27 EMER light indicates that the system is in the emergency mode (the heat pump compressor is off and the auxiliary system is maintaining 5 DAY setpoint temperature — there is a 5 to 10 minute startup delay on the first emergency cycle).
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Page 28: Operating Features
OPERATING FEATURES Now that you are familiar with the thermostat display and buttons, read the following information to learn about the many features of the thermostat. • COMPUTED ENERGY MANAGEMENT RE- COVERY (EMR) - The thermostat’s microcom- puter automatically calculates the time it will take to change the temperature to the next program setting. - Page 29 affect thermostat operation. Replace the bat- tery, re-program the thermostat if necessary, put the thermostat back on the wall, and use SYSTEM to set thermostat for desired opera- HEAT-OFF-COOL-AUTO tion. To set the thermostat for automatic changeover after programming, press to set the thermostat to AUTO (the setpoint display is blank in the AUTO mode).
- Page 30 If the automatic changeover feature is enabled, and you wish to disable it, press thermostat is OFF. Then, remove the thermo- stat body from the wall. Move the switch to the ON position (see figure at right). Leave the battery out of the thermostat for at least two minutes, to allow the thermostat to reset itself.
- Page 31 HOLD gram. Press . HOLD will be displayed. TEMP Then choose the desired hold temperature by pressing . The thermostat will hold the room temperature at the selected set- HOLD ting until you press to start program op- TEMP eration again. This feature is ideal for energy conservation when the building is unoccupied for an extended period of time.
- Page 32 cycles are too long, press the cycle time. To set COOL anticipation, press at the same time again. The CLOCK display will show COOL 14 (factory preprogrammed cooling anticipation). Use TIME TIME to adjust anticipation. To set BACK AUXILIARY heat anticipation (not applicable to multi-stage use), press CLOCK same time again.
- Page 33 Auxiliary heat is functional during the compres- sor lockout and can be used as needed to maintain room temperature. • COMPRESSOR LONG TERM CYCLE PRO- TECTION — If your system begins to operate too soon after an extended power outage, the compressor may be damaged due to crankcase oil temperature change.
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Page 34: Programming Your Thermostat
PROGRAMMING YOUR THERMOSTAT Now you are ready to program your thermostat. This section will help you plan and program your thermo- stat to meet your needs. For maximum comfort and efficiency, keep the fol- lowing guidelines in mind when planning your pro- gram. - Page 35 b. What temperature should the building be at this time? (heating? cooling?) These will be your MOR (morning) temperature settings. 2a. What time do the building occupants reach a maximum activity level (using lights, equipment, meeting rooms, etc.)? b. What temperature should the building be at this time? These will be your DAY temperature set- tings.
- Page 36 8a. What time does the last person go to bed at night? b. What temperature should the house be at this time? These will be your NHT (night) tempera- ture settings. Now look at the factory preprogrammed times and temperatures shown below. If this program will suit your needs, simply press PRGM factory preset program.
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Page 37: Entering Your Program
and cooling temperatures for consecutive time peri- ods. You can choose start times, heating tempera- tures, and cooling temperatures independently for both weekday and weekend programs (for example, you may select 5:00 AM and 70 as the weekday MOR heating start time and temperature, and choose 7:00 AM and 76 as the weekday MOR cooling start time and temperature). - Page 38 Heating/Cooling Schedule Plan WEEKEND (2 DAY) WEEKDAY (5 DAY) Start Start Time Temperature Time Temperature MOR HEAT DAY HEAT EVE HEAT NHT HEAT MOR COOL DAY COOL EVE COOL NHT COOL...
- Page 39 SAMPLE Heating/Cooling Schedule Plan WEEKDAY (5 DAY) Start Time Temperature 5:30 AM MOR HEAT 8:00 AM DAY HEAT 5:00 PM EVE HEAT 10:30 PM NHT HEAT 6:30 AM MOR COOL 2:00 PM DAY COOL 5:00 PM EVE COOL 10:30 PM NHT COOL WEEKEND (2 DAY) Start...
- Page 40 Set Current Time and Day 1. Press once. The display will show min- CLOCK utes only. EXAMPLE: TIME 2. Press and hold either reach the correct minutes. 3. Press once. The display window will CLOCK show the hour only. EXAMPLE: TIME 4.
- Page 41 want to stop programming at any time, simply press to resume program operation. PRGM SYSTEM 1. Press until HEAT is displayed. HEAT-OFF-COOL-AUTO VIEW 2. Press once. 5 DAY (indicating weekday PRGM program), and MOR, representing the morning heating period, will appear in the display. Also displayed are the currently programmed start time for the MOR period and the currently pro- grammed temperature.
- Page 42 9. After entering your weekday heating program, repeat steps 1 through 8 for your weekend pro- gramming (keep in mind that for weekend pro- gramming, the display should be changed from 5 DAY to 2 DAY). 10. When you have completed entering your heating program, press PRGM Enter Cooling Program...
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Page 43: Check Your Programming
SYSTEM 1. Press until COOL is displayed. HEAT-OFF-COOL-AUTO 2. Follow the procedure for entering your heating program, using your selected cooling times and temperatures. CHECK YOUR PROGRAMMING Follow these steps to check your thermostat pro- gramming one final time before beginning thermo- stat operation. -
Page 44: Questions And Answers
1. How can I permanently change a part of my program? VIEW Press until you reach the time/tempera- PRGM ture schedule you want. Then press TIME TIME BACK gram. See PROGRAMMING YOUR THERMO- STAT. 2. How can I have no change in temperature from one time period to another? Simply select the same temperature for each consecutive time period. - Page 45 4. What happens if the electricity goes off or is manually shut off? If you have not installed a 9 volt alkaline battery, the display will go blank and the program will be lost in approximately one minute. When electric- ity is restored, the thermostat will maintain a heating temperature of 64 F and a cooling tem- perature of 82 F until you reenter your program.
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Page 46: Your Thermostat
SYSTEM the wall. Then press HEAT-OFF-COOL-AUTO tem operation, and press factory preset program. Or you may re-program the thermostat, then replace it on the wall. To prevent further static discharge problems, touch another object to release static build-up before touching the thermostat. See OPERAT- ING YOUR THERMOSTAT. - Page 47 10. Why won’t the system turn on, even though the thermostat display is functioning nor- mally? Either the compressor lockout feature is in op- eration or the thermostat is not currently calling for heat or cool. Wait about 5 minutes for the compressor lockout to expire.
- Page 48 • The compressor lockout feature is operat- ing; wait about 5 minutes for system to begin running. See OPERATING YOUR THER- MOSTAT. 12. Why does the blower fan keep running after the system has turned off? • You have programmed the fan to run con- tinuously during this period.
- Page 49 15. I live in an area where daylight savings time is observed. How do I change the thermostat clock twice a year without affecting thermo- stat programming? To change your clock, follow the instructions for setting current time and day. See ENTERING YOUR PROGRAM.
- Page 50 NOTES...
- Page 51 NOTES...
- Page 52 If you need further information about this product, please write to White-Rodgers Division, Emerson Electric Co. 9797 Reavis Road St. Louis, MO 63123-5398 Attn: Technical Service Department Part No. 37-5414A 9513...