White Rodgers 1F83-71 Thermostat User Manual
Contents
1. F 7 C to 32 C Operating Ambient Temperature Range 32 F to 105 F Operating Humidity Range 0 to 90 RH non condensing Shipping Temperature Range 40 F to 150 F MI WHITE RODGERS DIVISION EMERSON ELECTRIC CO 9797 REAVIS ROAD sMerson ST LOUIS MISSOURI 63123 5398 Printed in U S A DESCRIPTION LCD continuously displays setpoint and room temperature e F C convertibility Temperature range 45 to 90 F Two stage heat two stage cool Armchair programming capability e e e PRECAUTIONS To prevent electrical shock and or equipment damage disconnect electric power to system at main fuse or circuit breaker box until installation is complete Do not use on circuits exceeding specified voltage Higher voltage will damage control and could cause shock or fire hazard Do not short out terminals on gas valve or primary control to test Short or incorrect wiring will damage thermostat and could cause personal injury and or property damage SPECIFICATIONS APPLICATIONS For use with Heat cool systems with up to two stages heat two stages cool DO NOT USE WITH Millivolt systems Systems exceeding 30 VAC and 2 5 amps 3 wire zoned hydronic heating systems PART NO 37 6126B Replaces 37 6126A 0004 INSTALLATION REMOVE OLD THERMOSTAT Shut off electricity at the main fuse box until installation is complete Ensure that electrical power is disconnected Remove the front cover of2. Press or E to adjust the displayed temperature to your desired setting To reset the temperature display back to the actual sensed temperature press y and SYSTEM buttons at the same time again 3 Press SYSTEM to resume normal thermostat operation TROUBLESHOOTING If your thermostat s display is frozen or displaying incorrectly the thermostat may have been affected by static discharge or voltage variations If this happens press the RESET button see fig 2 page 2 for the location of the button If pressing the RESET button does not correct the problem contact a qualified service technician For optimum performance we recommend replacing batteries once a year with fresh AA Energizer alkaline batteries
3. a ME VAC Energized Compressor Neutral in HEAT Contactor TRANSFORMER Stage 1 Figure 3 Typical wiring diagram for single transformer systems The 24 Volt neutral connection to terminal C on the thermostat is not required if repl ma s not required if you replace Control Circuit the batteries once a year with fresh AA Energizer batteries alkaline THERMOSTAT CUTAND TAPE OFF Compressor Contactor Stage 2 Energized 120 VAC in COOL Relay Stage 1 Neutral TRANSFORMER Compressor Contactor Stage 1 Energized in HEAT Neutral TRANSFORMER TWO COMMONS MUST BE JUMPERED TOGETHER Figure 4 Typical wiring diagram for two transformer systems with NO safety circuits The 24 Volt neutral connection Thermostat A Control to terminal C on the thermostat ek is not required if you replace ven the batteries once a year with fresh AA Energizer alkaline D O 0 G va O O THERMOSTAT batteries SYSTEM Compressor Energized a Contactor in COOL elay Limit or Stage 2 Stage 1 Limit or Safety Hot Safety Switches Switches El 120 VAC E al Neutral Compressor Energized Heat i MA VAG Contactor in HEAT Relay f Accessory HEATING Stage 1 Stage 2 E a Relay NO TRANSFORMER Common o ee Limit or Limit or Safety Safety TWO COMMONS MUST Switches Switches Bet BE JUMPERED TOGETHER Common 120 VAC Neutral COOLING TRANSFORMER Figure
4. 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 Identify each wire attached to the old thermostat using the labels enclosed with the new thermostat Disconnect the wires from old thermostat one at a time DO NOT LET WIRES FALL BACK INTO THE WALL Install new thermostat using the following procedures PRE INSTALLATION SET UP Remove the packing material from the thermostat This thermostat is configured from the factory to operate a heat cool fossil fuel gas oil etc forced air system with up to 2 stages of heat and 2 stages of cool It is configured correctly for any system that DOES NOT require the thermo stat to energize the fan on a call for heat If your system is an electric heat or heat pump system that REQUIRES the thermostat to turn on the fan on a call for heat locate the GAS ELECTRIC switch on the back of the thermostat see fig 1 and switch it to the ELECTRIC position This will allow the thermostat to energize the fan immediately on a call for heat If you are unsure if the heating cooling system requires the thermostat to control the fan contact a qualified heating and air conditioning service person One jumper is located on the back of the thermostat so that you may customize the thermostat to meet your individual preference see fig 1 In most app
5. 5 Typical wiring diagram for two transformer systems with safety circuits in BOTH systems 3 Heating System 3 Press 5 to adjust temperature setting above room tempera 1 Press SYSTEM button to turn thermostat to HEAT ture The cooling system should stop operating 2 Press H to adjust thermostat setting to 90 and hold for five NOTE NOTE seconds After you release the button both stages of the heating system should begin to operate within five seconds During normal operation the second stage of heat or cool may 3 Press s to adjust temperature setting below room tempera take 15 to 30 minutes to turn on The delay varies depending on ture The auxiliary heating system will stop immediately and the performance ofthe firststage Typically the pecond stage will the first stage will stop within three to four minutes lol la w ather while n miloer weater it will take longer There is no adjustment to this feature as it is Cooling System designed to maximize both comfort and efficiency LOCKOUT BYPASS OPTION To prevent compressor and or property damage if the FOR QUALIFIED SERVICE TECHNICIANS USE ONLY OPERATORS SHOULD NOT USE THIS FEA TURE DUE TO POSSIBILITY OF EQUIPMENT OR PROPERTY DAMAGE OR PERSONAL INJURY outdoor temperature is below 50 F DO NOT operate the cooling system 1 Press SYSTEM button to turn thermostat to COOL 2 Press E to adjust thermostat setting to 45 and hold for five seconds After y
6. W905 CUT FOR LONGER O O CYCLES Figure 1 Back of thermostat base Alkaline batteries 3 AA install ends to the left Mounting holes Figure 2 Thermostat base Check that the system is turned off Connect the wires beneath the terminal screws on the base using the appropri ate wiring diagram see figs 3 through 5 Push excess wire into wall and plug hole with a fire resistant material such as fiberglass insulation to prevent drafts from affecting thermostat operation CHECK THERMOSTAT OPERATION If at any time during testing your system does not operate properly contact a qualified serviceperson Pl NE Fan Operation Turn on power to the system Press SYSTEM button until the system is OFF Move FAN switch to ON The blower should begin to operate Move FAN switch to AUTO position The blower should stop within a short period of time Instructions continue on page 4 The following wiring diagrams show typical terminal identifica tion and wiring For proper installation refer to the original manufacturer s instructions Relay contacts shown are thermostatically operated The 24 Volt neutral connection to terminal C on the thermostat Thermostat is not required if you replace Control the batteries once a year with Circuit fresh AA Energizer alkaline batteries O O O0 O0 O 0 O 4 SYSTEM H Energized Compressor leat in COOL Contactor Relay Stage 2 Stage 1 Hot
7. WHITE RODGERS 1F83 71 Non Programmable Electronic 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 Your new White Rodgers Digital Multi stage Thermostat uses the technology of a solid state microcomputer to provide precise time temperature control Features Simultaneous heat and cool setpoint storage Optional C terminal dual power option Optional B and O terminals Preprogrammed temperature control This thermostat is intended for use with a 24 volt system do not use this thermostat with a millivolt or line voltage system If in doubt about whether your wiring is millivolt line or low voltage have it inspected by a qualified heating and air conditioning contractor or electrician Do not exceed the specification ratings All wiring must conform to local and national electrical codes and ordinances This control is a precision instrument and should be handled carefully Rough handling or distorting components could cause the control to malfunction ELECTRICAL DATA Electrical Rating 20 to 30 VAC 50 60 Hz or D C 0 05 to 1 5 Amps Load per terminal 1 5 Amps Maximum Total Load All terminals combined THERMAL DATA Setpoint Temperature Range 45 F to 90
8. he same time AUTOMATIC CHANGEOVER lIf you have a heating cooling system you can set the thermostat to automatically switch from heat to cool as needed to maintain setpoint temperature To select this mode press SYSTEM button until AUTO is displayed along with HEAT or COOL In AUTO mode pressing H and E at the same time will change the displayed setpoint temperature to the setpoint of the other mode HEAT or COOL This allows you to change both the HEAT and COOL setpoints if desired TOTAL KEYPAD LOCKOUT This security feature al lows you to lock out the thermostat buttons to prevent OPERATION HE Figure 6 Thermostat display buttons and switches unauthorized tampering To select this feature press A and SYSTEM button atthe same time and hold until LOCK is displayed To unlock the thermostat press A and SYSTEM buttons at the same time until LOCK is no longer displayed e F C CONVERTIBILITY Press E and SYSTEM but tons until the temperature display is in Celsius To display Fahrenheit repeat the process TEMPERATURE DISPLAY ADJUSTMENT Your new thermostat has been accurately setin ourfactory However if you wish you may adjust your new thermostat tempera ture display This can be accomplished within a 4 F range as follows 1 Press and hold E and SYSTEM buttons at the same time until the actual temperature only is displayed about 5 seconds 2
9. lications the factory jumper settings provide the most comfortable and conve nient thermostat operation Jumper wire W905 determines how fast the system cycles on and off based on temperature change As shipped from the factory the thermostat will maintain a very consistent room temperature usually within 1 F of the thermostat setting To achieve a slower on and off cycle providing a slightly wider temperature span cut and separate jumper wire W905 INSTALLING THE THERMOSTAT Gently remove the cover by pulling it straight off the base Forcing or prying on the unit may cause damage to the unit Remove the battery tab With the batteries installed the Armchair Programming feature allows you to program the thermostat before installing it on the wall Pull wires through the hole in the thermostat base and place the base over the hole in the wall Mark mounting hole locations on the wall using the base as a template Move the base out of the way Drill mounting holes Fasten the base loosely to the wall as shown in fig 2 using two mounting screws Place a level against the bottom of the base adjust until level and then tighten the screws Level ing is for appearance only and will not affect thermostat operation If you are using existing mounting holes or if the holes drilled are too large and do not allow you to tighten the base snugly use plastic screw anchors to secure the base 6 GAS ELECTRIC
10. ou release the button the blower should COMPRESSOR SHORT TERM come on immediately on high speed followed by cold air CYCLE PROTECTION circulation Both stages of the cooling system should begin to operate if you have a two stage cooling system During normal operation this thermostat has a built in If the fan is running but the compressor is not running and the short term 5 minute time delay During this 5 minute word COOL is flashing the compressor lockout feature is period the thermostat will lock out the compressor to operating eee Forkaut Bypass Option 20 Temporary allow head pressure to stabilize If you want to over override the compressor lockout feature during testing E z p g 9 ride this feature while testing thermostat operation simply press and E buttons at the same time DO NOT USE THE LOCKOUT BYPASS OPTION UNLESS THE COMPRESSOR OIL HEATERS HAVE BEEN OPERATIONAL FOR 6 HOURS AND THE SYSTEM HAS NOT BEEN OPERATIONAL FOR AT LEAST 5 MINUTES Before you begin using 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 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 Other than A and al the following button
11. s and switches are located behind the door on the bottom of the thermostat cover see fig 6 Pull the door down to open it The Thermostat Buttons and Switches O Red arrow Raises temperature setting Blue arrow Lowers temperature setting 3 SYSTEM button COOL OFF HEAT AUTO 3 FAN switch ON AUTO The Display O HT is displayed when the SYSTEM button has been pressed to put the thermostat in the HEAT mode CL is displayed when the SYSTEM button has been pressed to put the thermostat in the COOL mode CL is displayed flashing when the compressor is in lockout mode AUTO is displayed when the SYSTEM button has been pressed to put the thermostat in the automatic changeover AUTO mode 1 2 indicates the number of stages the thermostat is calling for Displays current temperature LOCK is displayed when keypad lockout has been acti vated Displays current setpoint temperature this is blank when SYSTEM button has been pressed to turn the system OFF O LO BATTERY is displayed when approximately 70 of battery life has been exhausted OPERATING FEATURES Now that you are familiar with the thermostat buttons and display read the following information to learn about the many features of the thermostat TEMPERATURE SETPOINT Press H or E until the display shows the temperature you want SIMULTANEOUS HEATING COOLING SETPOINT STORAGE You can enter both your heating and cooling setpoints at t
Download Pdf Manuals
Related Search