Multi-stage/Heat Pump ElectronicDigital Thermostat
WHITE-RODGERS
Operator: Save this booklet for future use!
INSTALLATION &OPERATION GUIDE
1F92W-51
Страница 1: ...Multi stage Heat Pump Electronic Digital Thermostat WHITE RODGERS Operator Save this booklet for future use INSTALLATION OPERATION GUIDE 1F92W 51 ...
Страница 2: ... 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 ...
Страница 3: ...PROGRAMMING QUESTIONS AND ANSWERS 44 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 Cooling S...
Страница 4: ...mperature override Manual program override HOLD temperature Advance Program button Armchair programming capability LCD displays continuous setpoint time and room temperature Adjustable cycle times 9 volt Energizer alkaline battery backup Compressor long term cycle protection Compressor short cycle protection Blower delay in the cooling cycle Preprogrammed temperature control Visual prompting durin...
Страница 5: ...ment and should be handledcarefully Roughhandlingordistortingcom ponents could cause the control to malfunction To prevent electrical shock and or equip ment damage disconnect electric power to system at main fuse or circuit breaker box until installation is complete CAUTION Do not use on circuits exceeding specified voltage Higher voltage will damage control and could cause shock or fire hazard D...
Страница 6: ...s Load per terminal 2 5 Amps Maximum Total Load All terminals combined Anticipation Heating 4 to 40 Cooling 4 to 40 Auxiliary 4 to 40 STAGING DATA Up to 3 heating stages Up to 1 cooling stage THERMAL DATA Setpoint Temperature Range 40 F to 99 F 4 C to 37 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 A...
Страница 7: ...n outside wall 3 Never expose thermostat to direct light from lamps sun fireplaces or any temperature radiat ing equipment 4 Avoid locations close to windows adjoining out side walls or doors that lead outside 5 Avoid locations close to air registers or in the direct path of air from them 6 Make sure there are no pipes or duct work in that part of the wall chosen for the thermostat loca tion 7 Nev...
Страница 8: ...hain or 6 chain attachedtoastrongcord Snagcordinbasement with hooked wire In buildings without base ments drop cord through hole in ceiling and down partitioning snag cord at the thermostat location 3 Attach thermostat wires to cord and pull wires through hole in wall so that 6 of wire comes out of the wall Approximately 5 feet from floor 1 2 hole for thermostat wire Stout cord with 6 chain attach...
Страница 9: ...e thermostat type you are replacing 5 Identify each wire attached to the old thermo stat using the labels enclosed with the new thermostat see Table 1 Record the identifi cation of the wire on the corresponding blank in Table 2 TABLE 1 WIRE IDENTIFICATION LABELS 1 G G 1 9 Y1 Y1 9 2 C C 2 3 L L 3 4 R R 4 5 O O 5 6 B B 6 7 E1 E1 7 8 E2 E2 8 10 Y2 Y2 10 11 W1 W1 11 12 W2 W2 12 13 W3 W3 13 14 S1 S1 14...
Страница 10: ...1 Y2 W1 W2 W3 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 Stage 1 Cool this terminal not used Stage 1 Heat Compressor Stage 2 Heat Auxiliary this terminal not used ...
Страница 11: ...r hole in wall and mark mounting hole locations on wall using subbase as a template 4 Move subbase out of the way Drill mounting holes 5 Fasten subbase loosely to wall as shown in fig 3 using two mounting screws Place a level against bottom of subbase adjust until level and then tighten screws Leveling is for appearance only and will not affect thermostat operation If you are using existing mounti...
Страница 12: ...ip ment damage disconnect electrical power at the main fuse box until installation is complete Verify power is off with a volt meter CAUTION Mounting hole Pull wires through this opening Connect wires under terminal screws Mounting hole 4 pin connector 9 pin connector Y1 C G W1 R Expansion plugs Figure 3 Subbase S1 S2 S3 O B Y2 W2 W3 E1 E2 L WARNING ...
Страница 13: ...ol Circuit 24 VAC 120 VAC Hot Neutral THERMOSTAT SYSTEM Y1 W1 W2 Figure 4 Typical wiring diagram for single transformer systems E1 Emergency Relay Constant Output E2 Emergency Relay Switched Output TRANSFORMER The following wiring diagrams show typical terminal iden tification and wiring For proper installation refer to the original manufacturers instructions NOTE ...
Страница 14: ...MMONS MUST BE JUMPERED TOGETHER CUT AND TAPE OFF C R G B O 24 VAC 120 VAC Hot Neutral THERMOSTAT SYSTEM Y1 W2 E1 E2 TRANSFORMER HEAT PUMP SYSTEM AUXILIARY HEATING SYSTEM W1 24 VAC 120 VAC Hot Neutral TRANSFORMER Changeover Energized In Cool Changeover Energized In Heat Fan Relay Compressor Contactor Stage 1 Emergency Relay Switched Output Thermostat Control Circuit Emergency Relay Constant Output ...
Страница 15: ...Relay Stage 1 Heat Relay Stage 2 24 VAC 120 VAC Hot Neutral HEAT PUMP TRANSFORMER 24 VAC 120 VAC Hot Neutral AUXILIARY HEATING TRANSFORMER 24 VAC Accessory Relay N O Contact Limit or Safety Switches Limit or Safety Switches Limit or Safety Switches Limit or Safety Switches NOTE Relay contacts shown are thermostatically operated The accessory relay scheme is required when safety circuits exist in b...
Страница 16: ...ach thermostat to subbase line up the plastic snap guides at the top of the thermostat and the 4 connector pins on the thermostat with the connec tors near the top right section of the subbase when viewed from the front Gently pivot the thermostat down until the 9 pin connectors and the plastic snaps lock into place see fig 7 Be gentle when attaching thermostat If the thermostat does not seem to b...
Страница 17: ...essor Heat Pump with reversing valve energized through B or O termi nals 2 Two Compressor Split System Figure 8 Back of thermostat Option switches 9 pin connector 4 pin connector Battery W18 ON 1 2 3 4 Switch 1 Switch 2 Switch 3 Switch 4 see step 6 OFF OFF OFF W1 Y1 Field jumper W1 Y1 ON 1 2 3 4 Switch 1 Switch 2 Switch 3 Switch 4 see step 6 OFF ON OFF W1 Y1 Field jumper W1 Y1 ...
Страница 18: ...hen power is restored the thermostat will automatically main tain a temperature of 64 F or a cooling temperature of 82 F factory preprogrammed as needed 3 Multi stage Fossil Fuel System up to 2 heat stages and 1 cool stage 4 Multi stage Electric Heat System up to 2 heat stages and 1 cool stage ON 1 2 3 4 Switch 1 Switch 2 Switch 3 Switch 4 see step 6 ON OFF OFF ON 1 2 3 4 Switch 1 Switch 2 Switch ...
Страница 19: ...should begin to operate 3 Press FAN ON AUTO until FAN is displayed The blower should stop operating within approxi mately one minute NOTE HEATING SYSTEM OPERATION 1 Press SYSTEM HEAT OFF COOL AUTO untilHEATisdisplayed Itshould already be displayed 2 Press to adjust thermostat to 99 F All stages of the heating system should come on within approximately five minutes However if the PUMP LED is flashi...
Страница 20: ... The cooling system should come on within approxi mately five minutes However if the fan is run ning but the compressor is not the compressor lockout feature is operating see Lockout By pass Option to temporarily override the com pressor lockout feature during testing 3 To program the thermostat see PROGRAM MING YOUR THERMOSTAT Afterheatingandcoolingsystemhavebeenchecked and are running properly d...
Страница 21: ...ess CAUTION than the power loss to the unit up to 12 hours maximum lockout During this time auxiliary heat will be used when necessary to maintain setpoint temperature DO NOT attempt to override this delay feature before crankcase temperature has stabi lized for example if power has been out for three hours the compressor should remain locked out for two hours COMPRESSOR SHORT TERM CYCLE PROTECTIO...
Страница 22: ...thermostat OFF before removing or attaching the thermo stat body Equipment damage and or per sonal injury could occur The subbase is attached to the wall but you can remove the thermostat body for easy programming To remove the thermostat body from the subbase grasp the thermostat body and gently pull it straight out from the subbase see fig 9 To attach the thermostat body line up the four termina...
Страница 23: ...wer isinterrupted forexample whenyouremovethe thermostat from the wall for programming A fresh battery will maintain the stored program for approximately one week If power loss is long enough for the program to be lost the thermostat will automatically maintain a factory prepro grammed heating temperature of 64 F and a cooling temperature of 82 F after power is re stored You must re program the th...
Страница 24: ...ntation at the top center of the door Pull the door out then swing the door down on its hinges Following are brief descriptions of the display and the thermostat buttons The Display 1 Continuously displays system mode HEAT EMER OFF COOL AUTO HOLD During programming the program period is displayed MOR DAY EVE NHT 2 Alternately displays room temperature F de notes degrees Fahrenheit and C denotes de...
Страница 25: ...ower is operat ing continuously regardless of heating or cool ing system cycling FAN is displayed during automaticfanoperation whentheblowercycles with the heating or cooling system 1 2 3 4 6 6 2 DAY 5 DAY 2 3 5 4 FAN FAN BAT 5 DAY FAN EMER AUX TIME FWD SYSTEM HEAT OFF COOL AUTO SET CLOCK VIEW PRGM HOLD TEMP TIME BACK FAN ON AUTO SET DAY RUN PRGM ADV PRGM ...
Страница 26: ...f the week 11 Used during programming to set the day of the week Also used with SET CLOCK to enter anticipa tion setting mode 12 Used to initiate or review thermostat program ming 13 Used to start program operation after program ming Also used to return thermostat to program operation after being in HOLD mode 14 Used to manually override programming to hold at a selected temperature when HOLD is d...
Страница 27: ...liary system is operating 18 EMER light indicates that the system is in the emergency mode the heat pump compressor is off and the auxiliary system is maintaining 10 11 12 13 14 15 16 17 18 9 7 8 5 DAY FAN EMER AUX TIME FWD SYSTEM HEAT OFF COOL AUTO SET CLOCK VIEW PRGM HOLD TEMP TIME BACK FAN ON AUTO SET DAY RUN PRGM ADV PRGM ...
Страница 28: ...mmed a temperature of 70 F The ther mostat will automatically activate the heating system at about 5 00 AM so that the pro grammed70 Ftemperatureisreachedbyabout 6 00 AM AUTOMATIC CHANGEOVER You can set the thermostat to automatically switch the sys tem from heating to cooling as needed First you must move option switch 4 located on the back of the thermostat body to the ON position if it has not ...
Страница 29: ...aticallyswitchbetweenheat ing and cooling depending on the actual room temperature AUTOMATIC CHANGEOVER ON Switch 1 set at installation DO NOT CHANGE Switch 2 set at installation DO NOT CHANGE Switch 3 set at installation DO NOT CHANGE Switch 4 ON In the AUTO mode the thermostat will not allow the temperature separation between the highest heat settingandthelowestcoolsettingtobelessthat1 F For exa...
Страница 30: ...n hold any temperature within its range for an indefinite period without reverting to the pro If the automatic changeover feature is enabled and you wish to disable it press SYSTEM HEAT OFF COOL AUTO until 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 ...
Страница 31: ...TION Iftheheat ing cooling system is turning on and off too often short cycles or not often enough long cycles you may want to adjust the anticipation setting An anticipation setting of less than 10 may cause decreased compressor life To adjust HEAT anticipation press SET CLOCK and SET DAY at the same time The display will show HEAT 18 You may select any anticipation setting from 4 to 40 note that...
Страница 32: ...ATTERY INDICATOR The word BAT will flash on the display if the battery is low and should be replaced When BAT is displayed continuously non flashing 24 VAC power is not being supplied and the thermostat is work ing on battery power only COMPRESSOR SHORT CYCLE PROTEC TION To protect your compressor from poten tial damage due to rapid cycling this thermostat has a built in delay of 5 minutes between...
Страница 33: ...essor oil is sufficiently warmed During the lockout time period the auxiliary heating sys tem will operate to maintain setpoint tempera ture For example if a power outage of three hours occurs the compressor will be locked out for two hours SYSTEM INDICATOR LIGHTS The lights ontheupperrightpartofthethermostatindicate system operation see PARTS OF THE THER MOSTAT for specific descriptions of what e...
Страница 34: ... weekday and two day weekend operation Usually the five day pro gram is set to run Monday through Friday and the two day program is set to run Saturday and Sunday However you may choose any five consecutive days to be your weekday program days such as Sunday through Thursday in this case your week end program would run on Friday and Saturday First you should answer the following questions to help ...
Страница 35: ...erature should the building be at this time 4a What time does the building become vacant b What temperature should the building be at this time These will be your NHT night tempera ture settings IN YOUR HOME 5a What time does the first person get up in the morning b What temperature should the house be at this time These will be your MOR morning tem perature settings 6a What time does the last per...
Страница 36: ... AUTO mode there must be a minimum 1 F separation between the highest heat temperature and the lowest cool temperature see diagram below Determine the time periods and heating and cooling temperatures for your weekday program You must program 4 periods for each day MOR DAY EVE and NHT However you may use the same heating Heating Program for ALL days of the Week Cooling Program for ALL Days of the ...
Страница 37: ...tduringeachperiod Youmay also want to look at the sample program table to get an idea of how the thermostat can be programmed ENTERING YOUR PROGRAM Follow these steps to enter the heating and cooling programs you have selected We recommend that you remove the thermostat from the wall for programming especially for enter ing cooling programming A fresh 9 volt Energizer alkaline battery must be inst...
Страница 38: ...38 WEEKDAY 5 DAY WEEKEND 2 DAY Start Time Temperature Start Time Temperature MOR HEAT DAY HEAT EVE HEAT NHT HEAT MOR COOL DAY COOL EVE COOL NHT COOL Heating Cooling Schedule Plan ...
Страница 39: ...AT DAY HEAT EVE HEAT NHT HEAT MOR COOL DAY COOL EVE COOL NHT COOL SAMPLE Heating Cooling Schedule Plan 5 30 AM 8 00 AM 5 00 PM 10 30 PM 6 30 AM 2 00 PM 5 00 PM 10 30 PM 68 65 70 65 76 78 72 78 7 00 AM 11 00 AM 6 00 PM 11 30 PM 7 00 AM 12 30 PM 6 00 PM 11 30 PM 68 70 70 65 76 74 72 78 ...
Страница 40: ...week as an abbreviation MO for Monday TU for Tuesday etc 6 Press and hold either TIME FWD or TIME BACK until you reach the current day of the week 7 Press RUN PRGM once The display will show the correct time and room temperature alternately Enter Heating Program During programming if you don t press any buttons for 5 minutes the thermostat will enter the HOLD mode and will maintain a constant temp...
Страница 41: ...mperature this example re flects factory preprogramming 3 To change the displayed start time to your se lected start time for weekday MOR heat pro gram press TIME FWD or TIME BACK until your selected time appears The time will change in 15 minute increments 4 Press or until you reach your se lected weekday MOR heating temperature 5 If you want the fan to run continuously during this period press F...
Страница 42: ...erature is below 50 F we recommendthatyouremovethethermostat from the wall before proceeding with the following steps to program cooling tem peratures Personal injury or property dam age may occur due to air conditioner com pressor slugging A fresh 9 volt Energizer alkaline battery must be installed to perform off wall programming Programming away fromthewallshouldpreventaccidentalcom pressor oper...
Страница 43: ...eriod times and temperatures in sequence for week day then weekend MOR DAY EVE and NHT program periods 3 Press RUN PRGM 4 Press SYSTEM HEAT OFF COOL AUTO until COOL is displayed 5 Repeat step 2 to check cooling temperatures 6 Press RUN PRGM to begin program operation YOUR THERMOSTAT IS NOW COMPLETELY PROGRAMMED AND READY TO AUTOMATI CALLYPROVIDEMAXIMUMCOMFORTANDEF FICIENCY Press SYSTEM HEAT OFF CO...
Страница 44: ...ay DAY which means the temperature will not change when the EVE period begins See PROGRAMMING YOUR THERMOSTAT 3 How can I finish my programming if the dis play has already changed to time tempera ture During programming if no buttons are pressed for five minutes the thermostat will enter the HOLD mode and maintain a constant tempera ture The display will change to the time tem perature mode To res...
Страница 45: ...es SeePROGRAMMING YOUR THERMOSTAT 6 What can cause the thermostat display to freeze or go blank A completely blank display may indicate that power has been lost to the thermostat and the backup battery is also dead However if there is power to the thermostat and the display is blank or frozen static discharge is probably the cause During periods of low humidity especially during cold weather you m...
Страница 46: ...elect for example if 70 F is your lowest selected cooling temperature you cannot select a heating temperature any higher than 69 F If such a conflict exists you must set the lowest cooling temperature higher in order to set the heating temperature higher To set a lower cooling temperature you must select a lower heating temperature See PROGRAMMING YOUR THERMOSTAT 8 The display is flashing BAT What...
Страница 47: ... ture above or below the setpoint tempera ture Property damage may result due to compressor slugging 11 Why doesn t the temperature change at the time I programmed There may be a number of causes for this situa tion The following are primary reasons The EMR function is operating The EMR function will automatically bring on the sys tem automatically to bring the temperature to the selected level by...
Страница 48: ...e system turning on and off so frequently seldom The anticipation setting is too low high To change anticipation settings see OPERATING YOUR THERMOSTAT 14 Between heating and cooling seasons I want to turn my system off Can I do this without affecting my thermostat programming Any time you wish to turn your system off simply press SYSTEM HEAT OFF COOL AUTO until OFF is displayed This will not affe...
Страница 49: ...be retained for approximately one minute if there is no battery installed or if the installed battery is dead If you are changing the battery after seeing a flashing BAT on the dis play the installed battery may be dead If you remove the old battery and install a fresh one withinoneminute youmaynotloseyourthermo stat programming After installing a new battery follow the procedures in CHECK YOUR PR...
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Страница 52: ...rt No 37 5414A 9513 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 ...
